US35494A
(en)
*
|
|
1862-06-03 |
|
Improvement in stoves |
US35829A
(en)
*
|
|
1862-07-08 |
|
Improvement in pumps |
US535514A
(en)
*
|
|
1895-03-12 |
|
Dominique leonard van riet |
US1688570A
(en)
|
1924-03-06 |
1928-10-23 |
Williams Foundry & Machine Com |
Vulcanizer head
|
US1699570A
(en)
|
1927-09-23 |
1929-01-22 |
American Telephone & Telegraph |
Carrier suppression modulation
|
US2057613A
(en)
*
|
1932-07-28 |
1936-10-13 |
Gen Electric |
Diversity factor receiving system
|
US2241078A
(en)
*
|
1937-11-01 |
1941-05-06 |
Frederick K Vreeland |
Multiplex communication
|
US2283575A
(en)
*
|
1938-04-19 |
1942-05-19 |
Rca Corp |
High frequency transmission system
|
GB519264A
(en)
*
|
1938-10-10 |
1940-03-20 |
Philips Nv |
Improvements in or relating to multi-carrier transmission systems
|
GB556208A
(en)
*
|
1941-04-25 |
1943-09-24 |
Standard Telephones Cables Ltd |
Arrangement for conversion of frequency modulation to phase modulation and the application thereof to the production of a frequency modulated wave from a frequency stable oscillator
|
US2462069A
(en)
*
|
1942-05-07 |
1949-02-22 |
Int Standard Electric Corp |
Radio communication system
|
US2410350A
(en)
*
|
1943-02-06 |
1946-10-29 |
Standard Telephones Cables Ltd |
Method and means for communication
|
US2472798A
(en)
*
|
1943-11-29 |
1949-06-14 |
Rca Corp |
Low-pass filter system
|
US2462181A
(en)
*
|
1944-09-28 |
1949-02-22 |
Western Electric Co |
Radio transmitting system
|
US2451430A
(en)
*
|
1946-04-23 |
1948-10-12 |
Jefferson Standard Broadcastin |
Carrier frequency shift signaling
|
BE473802A
(de)
*
|
1946-08-20 |
|
|
|
GB651011A
(en)
*
|
1947-04-22 |
1951-03-07 |
Ericsson Telefon Ab L M |
Improvements in modulation devices particularly for wide frequency bands
|
US2497859A
(en)
*
|
1947-11-19 |
1950-02-21 |
Western Union Telegraph Co |
Frequency diversity telegraph system
|
US2802208A
(en)
*
|
1952-06-25 |
1957-08-06 |
Charles F Hobbs |
Radio frequency multiplexing
|
US2985875A
(en)
*
|
1958-02-12 |
1961-05-23 |
Marconi Wireless Telegraph Co |
Radio communication systems
|
US3069679A
(en)
*
|
1959-04-22 |
1962-12-18 |
Westinghouse Electric Corp |
Multiplex communication systems
|
NL257346A
(de)
*
|
1959-10-30 |
|
|
|
US3246084A
(en)
|
1960-08-26 |
1966-04-12 |
Bolt Beranek & Newman |
Method of and apparatus for speech compression and the like
|
US3114106A
(en)
*
|
1960-11-23 |
1963-12-10 |
Mcmauus Robert Paul |
Frequency diversity system
|
US3023309A
(en)
*
|
1960-12-19 |
1962-02-27 |
Bell Telephone Labor Inc |
Communication system
|
US3104393A
(en)
*
|
1961-10-18 |
1963-09-17 |
Joseph H Vogelman |
Method and apparatus for phase and amplitude control in ionospheric communications systems
|
US3226643A
(en)
*
|
1962-01-08 |
1965-12-28 |
Avco Corp |
Command communication system of the rectangular wave type
|
US3246440A
(en)
*
|
1963-07-24 |
1966-04-19 |
Chicago United Products Compan |
Fastener assembly
|
US3241078A
(en)
|
1963-06-18 |
1966-03-15 |
Honeywell Inc |
Dual output synchronous detector utilizing transistorized differential amplifiers
|
US3258694A
(en)
*
|
1964-01-03 |
1966-06-28 |
|
Multi-channel p.m. transmitter with automatic
modulation index control |
US3384822A
(en)
*
|
1964-03-21 |
1968-05-21 |
Nippon Electric Co |
Frequency-shift-keying phase-modulation code transmission system
|
US3383598A
(en)
*
|
1965-02-15 |
1968-05-14 |
Space General Corp |
Transmitter for multiplexed phase modulated singaling system
|
DE1936252U
(de)
|
1965-05-11 |
1966-04-07 |
Vdo Schindling |
Temperaturfuehler.
|
US3426084A
(en)
*
|
1966-06-15 |
1969-02-04 |
Parke Davis & Co |
Process for the production of beta-nitroethanol
|
FR1504609A
(fr)
*
|
1966-09-21 |
1967-12-08 |
Ibm France |
Système de transmission de données
|
US3555428A
(en)
*
|
1966-10-03 |
1971-01-12 |
Xerox Corp |
Fsk receiver for detecting a data signal with the same number of cycles of each carrier frequency
|
US3454718A
(en)
*
|
1966-10-03 |
1969-07-08 |
Xerox Corp |
Fsk transmitter with transmission of the same number of cycles of each carrier frequency
|
US3617892A
(en)
*
|
1967-02-27 |
1971-11-02 |
Rca Corp |
Frequency modulation system for spreading radiated power
|
NL6706736A
(de)
|
1967-05-13 |
1968-11-14 |
Philips Nv |
|
CH497089A
(de)
|
1968-07-26 |
1970-09-30 |
Autophon Ag |
Anlage zur Übermittlung von kontinuierlichen Signalen
|
US3629696A
(en)
*
|
1968-08-06 |
1971-12-21 |
Northeast Electronics Corp |
Method and apparatus for measuring delay distortion including simultaneously applied modulated signals
|
US3548342A
(en)
*
|
1968-10-15 |
1970-12-15 |
Ibm |
Digitally controlled amplitude modulation circuit
|
US3614627A
(en)
|
1968-10-15 |
1971-10-19 |
Data Control Systems Inc |
Universal demodulation system
|
US3614630A
(en)
|
1969-02-04 |
1971-10-19 |
Develco |
Radio frequency standard and voltage controlled oscillator
|
US3626417A
(en)
*
|
1969-03-07 |
1971-12-07 |
Everett A Gilbert |
Hybrid frequency shift-amplitude modulated tone system
|
FR2040580A5
(de)
*
|
1969-04-03 |
1971-01-22 |
Inst Francais Du Petrole |
|
US3617898A
(en)
|
1969-04-09 |
1971-11-02 |
Eugene A Janning Jr |
Orthogonal passive frequency converter with control port and signal port
|
US3643168A
(en)
|
1969-07-07 |
1972-02-15 |
Standard Kallsman Ind Inc |
Solid-state tuned uhf television tuner
|
US3767984A
(en)
|
1969-09-03 |
1973-10-23 |
Nippon Electric Co |
Schottky barrier type field effect transistor
|
US3623160A
(en)
*
|
1969-09-17 |
1971-11-23 |
Sanders Associates Inc |
Data modulator employing sinusoidal synthesis
|
DE1962156A1
(de)
|
1969-12-11 |
1971-02-11 |
|
|
US6531979B1
(en)
|
1970-02-10 |
2003-03-11 |
The United States Of America As Represented By The Secretary Of The Navy |
Adaptive time-compression stabilizer
|
US3626315A
(en)
|
1970-04-07 |
1971-12-07 |
Sperry Rand Corp |
Voltage-controlled oscillator selectively injection locked to stable frequency harmonics
|
US4004237A
(en)
|
1970-05-01 |
1977-01-18 |
Harris Corporation |
System for communication and navigation
|
US3641442A
(en)
|
1970-06-25 |
1972-02-08 |
Hughes Aircraft Co |
Digital frequency synthesizer
|
US3621402A
(en)
*
|
1970-08-03 |
1971-11-16 |
Bell Telephone Labor Inc |
Sampled data filter
|
US3689841A
(en)
*
|
1970-10-23 |
1972-09-05 |
Signatron |
Communication system for eliminating time delay effects when used in a multipath transmission medium
|
US3702440A
(en)
|
1970-11-16 |
1972-11-07 |
Motorola Inc |
Selective calling system providing an increased number of calling codes or auxiliary information transfer
|
US3662268A
(en)
*
|
1970-11-17 |
1972-05-09 |
Bell Telephone Labor Inc |
Diversity communication system using distinct spectral arrangements for each branch
|
US3694754A
(en)
|
1970-12-28 |
1972-09-26 |
Tracor |
Suppression of electrostatic noise in antenna systems
|
US3716730A
(en)
|
1971-04-19 |
1973-02-13 |
Motorola Inc |
Intermodulation rejection capabilities of field-effect transistor radio frequency amplifiers and mixers
|
US3714577A
(en)
*
|
1971-05-06 |
1973-01-30 |
W Hayes |
Single sideband am-fm modulation system
|
US3735048A
(en)
*
|
1971-05-28 |
1973-05-22 |
Motorola Inc |
In-band data transmission system
|
US3719903A
(en)
|
1971-06-25 |
1973-03-06 |
Bell Telephone Labor Inc |
Double sideband modem with either suppressed or transmitted carrier
|
US3736513A
(en)
|
1971-06-28 |
1973-05-29 |
Warwick Electronics Inc |
Receiver tuning system
|
US3809821A
(en)
|
1971-10-08 |
1974-05-07 |
W Melvin |
Three-channel data modem apparatus
|
US3740636A
(en)
|
1971-11-05 |
1973-06-19 |
Us Navy |
Charge regulator and monitor for spacecraft solar cell/battery system control
|
US3806811A
(en)
*
|
1972-01-20 |
1974-04-23 |
Gte Sylvania Inc |
Multiple carrier phase modulated signal generating apparatus
|
US3764921A
(en)
|
1972-10-27 |
1973-10-09 |
Control Data Corp |
Sample and hold circuit
|
US3991277A
(en)
*
|
1973-02-15 |
1976-11-09 |
Yoshimutsu Hirata |
Frequency division multiplex system using comb filters
|
US3852530A
(en)
|
1973-03-19 |
1974-12-03 |
M Shen |
Single stage power amplifiers for multiple signal channels
|
US3868601A
(en)
*
|
1973-06-18 |
1975-02-25 |
Us Navy |
Digital single-sideband modulator
|
FR2245130A1
(en)
|
1973-09-21 |
1975-04-18 |
Jaeger |
Linear frequency-voltage converter - supplies charge to capacitor proportional to input frequency
|
US4066841A
(en)
*
|
1974-01-25 |
1978-01-03 |
Serck Industries Limited |
Data transmitting systems
|
US3949300A
(en)
*
|
1974-07-03 |
1976-04-06 |
Sadler William S |
Emergency radio frequency warning device
|
JPS5113208U
(de)
|
1974-07-17 |
1976-01-30 |
|
|
US3967202A
(en)
*
|
1974-07-25 |
1976-06-29 |
Northern Illinois Gas Company |
Data transmission system including an RF transponder for generating a broad spectrum of intelligence bearing sidebands
|
NL168099C
(nl)
*
|
1974-09-12 |
1982-02-16 |
Philips Nv |
Modulatie- en filterinrichting voor digitale signalen.
|
US4035732A
(en)
*
|
1974-10-03 |
1977-07-12 |
The United States Of America As Represented By The Secretary Of The Army |
High dynamic range receiver front end mixer requiring low local oscillator injection power
|
US3980945A
(en)
*
|
1974-10-07 |
1976-09-14 |
Raytheon Company |
Digital communications system with immunity to frequency selective fading
|
US3940697A
(en)
|
1974-12-02 |
1976-02-24 |
Hy-Gain Electronics Corporation |
Multiple band scanning radio
|
US3987280A
(en)
*
|
1975-05-21 |
1976-10-19 |
The United States Of America As Represented By The Secretary Of The Navy |
Digital-to-bandpass converter
|
US4017798A
(en)
|
1975-09-08 |
1977-04-12 |
Ncr Corporation |
Spread spectrum demodulator
|
US4013966A
(en)
*
|
1975-10-16 |
1977-03-22 |
The United States Of America As Represented By The Secretary Of The Navy |
Fm rf signal generator using step recovery diode
|
US4047121A
(en)
*
|
1975-10-16 |
1977-09-06 |
The United States Of America As Represented By The Secretary Of The Navy |
RF signal generator
|
US4019140A
(en)
*
|
1975-10-24 |
1977-04-19 |
Bell Telephone Laboratories, Incorporated |
Methods and apparatus for reducing intelligible crosstalk in single sideband radio systems
|
US4045740A
(en)
|
1975-10-28 |
1977-08-30 |
The United States Of America As Represented By The Secretary Of The Army |
Method for optimizing the bandwidth of a radio receiver
|
US4020487A
(en)
|
1975-10-31 |
1977-04-26 |
Fairchild Camera And Instrument Corporation |
Analog-to-digital converter employing common mode rejection circuit
|
JPS5823978B2
(ja)
|
1975-11-11 |
1983-05-18 |
ソニー株式会社 |
チユ−ナ
|
JPS5826699B2
(ja)
|
1975-11-13 |
1983-06-04 |
ソニー株式会社 |
チユ−ナ
|
US4032847A
(en)
|
1976-01-05 |
1977-06-28 |
Raytheon Company |
Distortion adapter receiver having intersymbol interference correction
|
US4066919A
(en)
*
|
1976-04-01 |
1978-01-03 |
Motorola, Inc. |
Sample and hold circuit
|
JPS52141113A
(en)
*
|
1976-05-19 |
1977-11-25 |
Nippon Telegr & Teleph Corp <Ntt> |
Transmission diversity system
|
US4048598A
(en)
|
1976-05-28 |
1977-09-13 |
Rca Corporation |
Uhf tuning circuit utilizing a varactor diode
|
NL175575C
(nl)
*
|
1976-05-28 |
1984-11-16 |
Philips Nv |
Filter- en demodulatie-inrichting.
|
US4081748A
(en)
*
|
1976-07-01 |
1978-03-28 |
Northern Illinois Gas Company |
Frequency/space diversity data transmission system
|
US4080573A
(en)
|
1976-07-16 |
1978-03-21 |
Motorola, Inc. |
Balanced mixer using complementary devices
|
US4051475A
(en)
*
|
1976-07-21 |
1977-09-27 |
The United States Ofamerica As Represented By The Secretary Of The Army |
Radio receiver isolation system
|
JPS5914939B2
(ja)
|
1976-09-30 |
1984-04-06 |
日本電気株式会社 |
搬送波再生装置
|
JPS53140962A
(en)
|
1977-05-16 |
1978-12-08 |
Hitachi Denshi Ltd |
Electronic switch circuit
|
US4145659A
(en)
|
1977-05-25 |
1979-03-20 |
General Electric Company |
UHF electronic tuner
|
US4130765A
(en)
*
|
1977-05-31 |
1978-12-19 |
Rafi Arakelian |
Low supply voltage frequency multiplier with common base transistor amplifier
|
US4173164A
(en)
|
1977-06-01 |
1979-11-06 |
Nippon Gakki Seizo Kabushiki Kaisha |
Electronic musical instrument with frequency modulation of a tone signal with an audible frequency signal
|
US4346477A
(en)
*
|
1977-08-01 |
1982-08-24 |
E-Systems, Inc. |
Phase locked sampling radio receiver
|
JPS5461822A
(en)
|
1977-10-27 |
1979-05-18 |
Sony Corp |
Transmitter circuit
|
US4170764A
(en)
*
|
1978-03-06 |
1979-10-09 |
Bell Telephone Laboratories, Incorporated |
Amplitude and frequency modulation system
|
DE2813946C2
(de)
*
|
1978-03-31 |
1980-01-31 |
Siemens Ag, 1000 Berlin Und 8000 Muenchen |
Filterschaltung mit einer biquadratischen Übertragungsfunktion
|
US4204171A
(en)
*
|
1978-05-30 |
1980-05-20 |
Rca Corporation |
Filter which tracks changing frequency of input signal
|
US4241451A
(en)
|
1978-06-26 |
1980-12-23 |
Rockwell International Corporation |
Single sideband signal demodulator
|
US4193036A
(en)
|
1978-07-03 |
1980-03-11 |
Motorola, Inc. |
Balanced active mixer circuit
|
US4210872A
(en)
*
|
1978-09-08 |
1980-07-01 |
American Microsystems, Inc. |
High pass switched capacitor filter section
|
US4308614A
(en)
*
|
1978-10-26 |
1981-12-29 |
Fisher Charles B |
Noise-reduction sampling system
|
US4253067A
(en)
|
1978-12-11 |
1981-02-24 |
Rockwell International Corporation |
Baseband differentially phase encoded radio signal detector
|
BR8006228A
(pt)
|
1979-01-29 |
1980-12-30 |
Anaconda Co |
Sistema de transmissao,processo de multiplexacao de portadora em multiplos canais de comunicacao sobre um unico meio de comunicacao processo de filtragem de receptor,processo de construcao de sistema de transmissao de portadora multiplexada em multiplos canais,filtro receptor,e sistema de transmissao telefonica de portadora multiplexada
|
US4389579A
(en)
*
|
1979-02-13 |
1983-06-21 |
Motorola, Inc. |
Sample and hold circuit
|
DE2921219C2
(de)
|
1979-05-25 |
1986-12-04 |
Blaupunkt-Werke Gmbh, 3200 Hildesheim |
HF-Empfangsstufe für Fernsehgeräte
|
US4250458A
(en)
|
1979-05-31 |
1981-02-10 |
Digital Communications Corporation |
Baseband DC offset detector and control circuit for DC coupled digital demodulator
|
US4409877A
(en)
|
1979-06-11 |
1983-10-18 |
Cbs, Inc. |
Electronic tone generating system
|
US4320361A
(en)
*
|
1979-07-20 |
1982-03-16 |
Marconi Instruments Limited |
Amplitude and frequency modulators using a switchable component controlled by data signals
|
US4245355A
(en)
*
|
1979-08-08 |
1981-01-13 |
Eaton Corporation |
Microwave frequency converter
|
US4320536A
(en)
*
|
1979-09-18 |
1982-03-16 |
Dietrich James L |
Subharmonic pumped mixer circuit
|
JPS5648732A
(en)
*
|
1979-09-28 |
1981-05-02 |
Nec Corp |
Radio equipment
|
FR2471081B1
(fr)
*
|
1979-11-30 |
1986-05-30 |
Thomson Csf |
Filtre a capacites commutees a transfert de charges
|
US4356558A
(en)
*
|
1979-12-20 |
1982-10-26 |
Martin Marietta Corporation |
Optimum second order digital filter
|
US4286283A
(en)
|
1979-12-20 |
1981-08-25 |
Rca Corporation |
Transcoder
|
FR2473808A1
(fr)
*
|
1980-01-11 |
1981-07-17 |
Thomson Csf |
Melangeur subharmonique pour recepteur a ondes millimetriques et recepteur utilisant un tel melangeur
|
US4370572A
(en)
*
|
1980-01-17 |
1983-01-25 |
Trw Inc. |
Differential sample-and-hold circuit
|
FR2474791A1
(fr)
|
1980-01-29 |
1981-07-31 |
Thomson Csf |
Systeme de transmission radioelectrique en diversite, de structure simple et economique, et reseau de telecommunication comportant de tels systemes
|
DE3007907A1
(de)
|
1980-03-01 |
1981-09-17 |
Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt |
Digitaler empfaenger
|
DE3016082C2
(de)
*
|
1980-04-25 |
1982-10-21 |
Siemens AG, 1000 Berlin und 8000 München |
Aus CTD-Elementen bestehende, mit einer vorgebbaren Abtast- und Taktfrequenz f ↓T↓ betriebene elektrische Filterschaltung
|
US4253066A
(en)
*
|
1980-05-13 |
1981-02-24 |
Fisher Charles B |
Synchronous detection with sampling
|
US4485347A
(en)
*
|
1980-09-04 |
1984-11-27 |
Mitsubishi Denki Kabushiki Kaisha |
Digital FSK demodulator
|
US4393352A
(en)
|
1980-09-18 |
1983-07-12 |
The Perkin-Elmer Corporation |
Sample-and-hold hybrid active RC filter
|
US4472785A
(en)
*
|
1980-10-13 |
1984-09-18 |
Victor Company Of Japan, Ltd. |
Sampling frequency converter
|
US4334324A
(en)
|
1980-10-31 |
1982-06-08 |
Rca Corporation |
Complementary symmetry FET frequency converter circuits
|
US4517519A
(en)
*
|
1980-11-07 |
1985-05-14 |
Kabushiki Kaisha Suwa Seikosha |
FSK Demodulator employing a switched capacitor filter and period counters
|
US4360867A
(en)
*
|
1980-12-08 |
1982-11-23 |
Bell Telephone Laboratories, Incorporated |
Broadband frequency multiplication by multitransition operation of step recovery diode
|
DE3047386A1
(de)
|
1980-12-16 |
1982-07-15 |
Philips Patentverwaltung Gmbh, 2000 Hamburg |
Empfaenger zum empfang von am-signalen, deren traeger frequenz- oder phasenmoduliert ist
|
US4363976A
(en)
|
1981-01-19 |
1982-12-14 |
Rockwell International Corporation |
Subinterval sampler
|
US4393395A
(en)
|
1981-01-26 |
1983-07-12 |
Rca Corporation |
Balanced modulator with feedback stabilization of carrier balance
|
GB2094080B
(en)
*
|
1981-02-18 |
1984-11-07 |
Sony Corp |
Automatic fine tuning circuits for television receivers
|
GB2094079A
(en)
|
1981-02-20 |
1982-09-08 |
Philips Electronic Associated |
Fm demodulator
|
US4352209A
(en)
|
1981-03-23 |
1982-09-28 |
John Ma |
Up-down frequency converter for cable T.V.
|
US4384357A
(en)
|
1981-04-03 |
1983-05-17 |
Canadian Patens & Development Limited |
Self-synchronization circuit for a FFSK or MSK demodulator
|
US4380828A
(en)
|
1981-05-26 |
1983-04-19 |
Zenith Radio Corporation |
UHF MOSFET Mixer
|
DE3121146A1
(de)
*
|
1981-05-27 |
1983-01-05 |
Siemens AG, 1000 Berlin und 8000 München |
Digitales funksystem
|
US4481642A
(en)
*
|
1981-06-02 |
1984-11-06 |
Texas Instruments Incorporated |
Integrated circuit FSK modem
|
US4483017A
(en)
|
1981-07-31 |
1984-11-13 |
Rca Corporation |
Pattern recognition system using switched capacitors
|
US4517520A
(en)
*
|
1981-08-24 |
1985-05-14 |
Trio Kabushiki Kaisha |
Circuit for converting a staircase waveform into a smoothed analog signal
|
GB2106359B
(en)
*
|
1981-09-24 |
1985-07-03 |
Standard Telephones Cables Ltd |
Direct conversion radio receiver for fm signals
|
FR2515449B1
(fr)
*
|
1981-10-23 |
1986-08-14 |
Thomson Csf |
Dispositif melangeur subharmonique hyperfrequence et systeme hyperfrequence utilisant un tel dispositif
|
US4446438A
(en)
*
|
1981-10-26 |
1984-05-01 |
Gte Automatic Electric Incorporated |
Switched capacitor n-path filter
|
US4441080A
(en)
|
1981-12-17 |
1984-04-03 |
Bell Telephone Laboratories, Incorporated |
Amplifier with controlled gain
|
JPS58105493A
(ja)
*
|
1981-12-16 |
1983-06-23 |
Matsushita Electric Ind Co Ltd |
パルス信号振幅記憶保持装置
|
FR2521784B1
(fr)
|
1982-02-12 |
1985-09-20 |
Thomson Csf |
Melangeur a transistor pour hyperfrequences
|
JPS58133004A
(ja)
|
1982-02-03 |
1983-08-08 |
Matsushita Electric Ind Co Ltd |
振幅検波装置
|
US4456990A
(en)
*
|
1982-02-10 |
1984-06-26 |
Fisher Charles B |
Periodic wave elimination by negative feedback
|
JPS58139399A
(ja)
|
1982-02-15 |
1983-08-18 |
Hitachi Ltd |
半導体記憶装置
|
US4479226A
(en)
*
|
1982-03-29 |
1984-10-23 |
At&T Bell Laboratories |
Frequency-hopped single sideband mobile radio system
|
US4484143A
(en)
|
1982-05-17 |
1984-11-20 |
Rockwell International Corporation |
CCD Demodulator circuit
|
US4481490A
(en)
*
|
1982-06-07 |
1984-11-06 |
Ael Microtel, Ltd. |
Modulator utilizing high and low frequency carriers
|
US4504803A
(en)
*
|
1982-06-28 |
1985-03-12 |
Gte Lenkurt, Incorporated |
Switched capacitor AM modulator/demodulator
|
US4510467A
(en)
|
1982-06-28 |
1985-04-09 |
Gte Communication Systems Corporation |
Switched capacitor DSB modulator/demodulator
|
US4463320A
(en)
|
1982-07-06 |
1984-07-31 |
Rockwell International Corporation |
Automatic gain control circuit
|
US4510453A
(en)
|
1982-07-13 |
1985-04-09 |
Westinghouse Electric Corp. |
Frequency modulation or pulse modulation demodulator
|
US4470145A
(en)
|
1982-07-26 |
1984-09-04 |
Hughes Aircraft Company |
Single sideband quadricorrelator
|
US4651034A
(en)
|
1982-11-26 |
1987-03-17 |
Mitsubishi Denki Kabushiki Kaisha |
Analog input circuit with combination sample and hold and filter
|
JPS59118315U
(ja)
*
|
1983-01-28 |
1984-08-09 |
ソニー株式会社 |
バツフア回路
|
JPS59144249A
(ja)
|
1983-02-08 |
1984-08-18 |
Nec Corp |
パルス信号伝送方式
|
GB2141007B
(en)
|
1983-06-02 |
1986-07-23 |
Standard Telephones Cables Ltd |
Demodulator logic for frequency shift keyed signals
|
US4616191A
(en)
*
|
1983-07-05 |
1986-10-07 |
Raytheon Company |
Multifrequency microwave source
|
NL8302482A
(nl)
*
|
1983-07-12 |
1985-02-01 |
Philips Nv |
Bandsperfilter van het geschakelde capaciteiten type.
|
US4663744A
(en)
|
1983-08-31 |
1987-05-05 |
Terra Marine Engineering, Inc. |
Real time seismic telemetry system
|
US4591930A
(en)
|
1983-09-23 |
1986-05-27 |
Eastman Kodak Company |
Signal processing for high resolution electronic still camera
|
GB2149244B
(en)
*
|
1983-10-29 |
1987-01-21 |
Standard Telephones Cables Ltd |
Digital demodulator arrangement for quadrature signals
|
FR2554994B1
(fr)
|
1983-11-15 |
1989-05-26 |
Thomson Csf |
Dispositif de generation d'une frequence fractionnaire d'une frequence de reference
|
JPH0793553B2
(ja)
|
1983-11-18 |
1995-10-09 |
株式会社日立製作所 |
スイッチド・キャパシタ・フィルタ
|
US4660164A
(en)
|
1983-12-05 |
1987-04-21 |
The United States Of America As Represented By The Secretary Of The Navy |
Multiplexed digital correlator
|
US4577157A
(en)
*
|
1983-12-12 |
1986-03-18 |
International Telephone And Telegraph Corporation |
Zero IF receiver AM/FM/PM demodulator using sampling techniques
|
JPS60130203A
(ja)
|
1983-12-19 |
1985-07-11 |
Matsushita Electric Ind Co Ltd |
周波数変換器
|
US4562414A
(en)
|
1983-12-27 |
1985-12-31 |
Motorola, Inc. |
Digital frequency modulation system and method
|
JPS60141027A
(ja)
|
1983-12-28 |
1985-07-26 |
Nec Corp |
周波数制御装置
|
US4563773A
(en)
*
|
1984-03-12 |
1986-01-07 |
The United States Of America As Represented By The Secretary Of The Army |
Monolithic planar doped barrier subharmonic mixer
|
US4547746A
(en)
|
1984-04-09 |
1985-10-15 |
Rockwell International Corporation |
VSWR Tolerant linear power amplifier
|
US4970703A
(en)
|
1984-05-10 |
1990-11-13 |
Magnavox Government And Industrial Electronics Company |
Switched capacitor waveform processing circuit
|
US4601046A
(en)
|
1984-05-15 |
1986-07-15 |
Halpern Peter H |
System for transmitting data through a troposcatter medium
|
GB2161344A
(en)
|
1984-07-06 |
1986-01-08 |
Philips Electronic Associated |
Transmission of digital data
|
JPS6160515U
(de)
*
|
1984-08-22 |
1986-04-23 |
|
|
US4621217A
(en)
*
|
1984-09-21 |
1986-11-04 |
Tektronix, Inc. |
Anti-aliasing filter circuit for oscilloscopes
|
US4603300A
(en)
*
|
1984-09-21 |
1986-07-29 |
General Electric Company |
Frequency modulation detector using digital signal vector processing
|
US4596046A
(en)
|
1984-10-01 |
1986-06-17 |
Motorola, Inc. |
Split loop AFC system for a SSB receiver
|
CH666584A5
(de)
|
1984-11-22 |
1988-07-29 |
Zellweger Uster Ag |
Verfahren und vorrichtung zum demodulieren von hochfrequent modulierten signalen mittels digitaler filter und digitaler demodulatoren, sowie anwendung des verfahrens in einem fernsteuerempfaenger.
|
US4651210A
(en)
|
1984-12-24 |
1987-03-17 |
Rca Corporation |
Adjustable gamma controller
|
US4716388A
(en)
|
1984-12-24 |
1987-12-29 |
Jacobs Gordon M |
Multiple output allpass switched capacitor filters
|
US4570738A
(en)
*
|
1985-01-03 |
1986-02-18 |
Yamaha Hatsudoki Kabushiki Kaisha |
Snow vehicle equipped with wide, low-pressure tires
|
US4716376A
(en)
|
1985-01-31 |
1987-12-29 |
At&T Information Systems Inc. |
Adaptive FSK demodulator and threshold detector
|
EP0193899B1
(de)
|
1985-03-04 |
1990-06-13 |
Dymax Corporation |
Sender-Empfänger mit Aufwärtsmischung zum Verfolgen eines Kennzeichen eines Zellgewebes
|
US4893316A
(en)
|
1985-04-04 |
1990-01-09 |
Motorola, Inc. |
Digital radio frequency receiver
|
JPS61248602A
(ja)
|
1985-04-26 |
1986-11-05 |
Toshiba Corp |
周波数2逓倍器
|
DE3516492A1
(de)
|
1985-05-08 |
1986-11-13 |
Standard Elektrik Lorenz Ag, 7000 Stuttgart |
Funkempfaenger
|
US4612518A
(en)
*
|
1985-05-28 |
1986-09-16 |
At&T Bell Laboratories |
QPSK modulator or demodulator using subharmonic pump carrier signals
|
US4833445A
(en)
|
1985-06-07 |
1989-05-23 |
Sequence Incorporated |
Fiso sampling system
|
GB2177273A
(en)
|
1985-06-26 |
1987-01-14 |
Philips Electronic Associated |
R f power amplifier
|
DE3674096D1
(de)
|
1985-07-03 |
1990-10-18 |
Siemens Ag |
Digitale filterweiche, insbesondere fuer einen datenempfaenger.
|
GB2177876A
(en)
|
1985-07-08 |
1987-01-28 |
Philips Electronic Associated |
Radio system and a transmitter and a receiver for use in the system
|
US4634998A
(en)
*
|
1985-07-17 |
1987-01-06 |
Hughes Aircraft Company |
Fast phase-lock frequency synthesizer with variable sampling efficiency
|
US4810904A
(en)
|
1985-07-17 |
1989-03-07 |
Hughes Aircraft Company |
Sample-and-hold phase detector circuit
|
US4713164A
(en)
*
|
1985-07-25 |
1987-12-15 |
Confidence Corporation |
Apparatus for analyzing malodors in the breath
|
US4675882A
(en)
|
1985-09-10 |
1987-06-23 |
Motorola, Inc. |
FM demodulator
|
US4785463A
(en)
|
1985-09-03 |
1988-11-15 |
Motorola, Inc. |
Digital global positioning system receiver
|
GB2181914B
(en)
|
1985-10-22 |
1989-09-20 |
Plessey Co Plc |
Frequency doubling oscillator and heterodyne circuit incorporating same
|
US5345239A
(en)
|
1985-11-12 |
1994-09-06 |
Systron Donner Corporation |
High speed serrodyne digital frequency translator
|
US4653117A
(en)
|
1985-11-18 |
1987-03-24 |
Motorola, Inc. |
Dual conversion FM receiver using phase locked direct conversion IF
|
CA1244139A
(en)
|
1985-12-11 |
1988-11-01 |
Larry J. Conway |
Microwave waveform receiver
|
US4648021A
(en)
|
1986-01-03 |
1987-03-03 |
Motorola, Inc. |
Frequency doubler circuit and method
|
US4740675A
(en)
|
1986-04-10 |
1988-04-26 |
Hewlett-Packard Company |
Digital bar code slot reader with threshold comparison of the differentiated bar code signal
|
US4751468A
(en)
|
1986-05-01 |
1988-06-14 |
Tektronix, Inc. |
Tracking sample and hold phase detector
|
JPS62264728A
(ja)
|
1986-05-12 |
1987-11-17 |
Minolta Camera Co Ltd |
A/d変換装置
|
US4733403A
(en)
|
1986-05-12 |
1988-03-22 |
Motorola, Inc. |
Digital zero IF selectivity section
|
IT1204401B
(it)
|
1986-06-20 |
1989-03-01 |
Sgs Microelettronica Spa |
Dispositivo di filtraggio passabanda a dati campionati
|
US4757538A
(en)
|
1986-07-07 |
1988-07-12 |
Tektronix, Inc. |
Separation of L+R from L-R in BTSC system
|
US4791600A
(en)
|
1986-07-28 |
1988-12-13 |
Tektronix, Inc. |
Digital pipelined heterodyne circuit
|
US4688253A
(en)
|
1986-07-28 |
1987-08-18 |
Tektronix, Inc. |
L+R separation system
|
US4740792A
(en)
*
|
1986-08-27 |
1988-04-26 |
Hughes Aircraft Company |
Vehicle location system
|
JPS6369099A
(ja)
|
1986-09-10 |
1988-03-29 |
Yamaha Corp |
サンプルホ−ルド回路
|
US4745463A
(en)
|
1986-09-25 |
1988-05-17 |
Rca Licensing Corporation |
Generalized chrominance signal demodulator for a sampled data television signal processing system
|
US4791584A
(en)
|
1986-10-15 |
1988-12-13 |
Eastman Kodak Company |
Sub-nyquist interferometry
|
NL8603110A
(nl)
|
1986-12-08 |
1988-07-01 |
Philips Nv |
Schakeling voor het terugwinnen van een draaggolf.
|
JPS63153691A
(ja)
|
1986-12-17 |
1988-06-27 |
Star Seimitsu Kk |
半導体デ−タキヤリアシステムにおけるデ−タ授受方式
|
US4811422A
(en)
|
1986-12-22 |
1989-03-07 |
Kahn Leonard R |
Reduction of undesired harmonic components
|
US5014304A
(en)
|
1987-01-09 |
1991-05-07 |
Sgs-Thomson Microelectronics S.R.L. |
Method of reconstructing an analog signal, particularly in digital telephony applications, and a circuit device implementing the method
|
GB2201559A
(en)
|
1987-01-23 |
1988-09-01 |
Gen Electric Plc |
Electrical signal mixer circuit
|
US4737969A
(en)
|
1987-01-28 |
1988-04-12 |
Motorola, Inc. |
Spectrally efficient digital modulation method and apparatus
|
US4806790A
(en)
|
1987-02-16 |
1989-02-21 |
Nec Corporation |
Sample-and-hold circuit
|
JPS63215185A
(ja)
|
1987-03-03 |
1988-09-07 |
Matsushita Electric Ind Co Ltd |
サブナイキスト符号化装置および復号化装置
|
FR2612018B1
(fr)
|
1987-03-06 |
1989-05-26 |
Labo Electronique Physique |
Melangeur hyperfrequences
|
US4871987A
(en)
|
1987-03-28 |
1989-10-03 |
Kabushiki Kaisha Kenwood |
FSK or am modulator with digital waveform shaping
|
US4761798A
(en)
|
1987-04-02 |
1988-08-02 |
Itt Aerospace Optical |
Baseband phase modulator apparatus employing digital techniques
|
US4816704A
(en)
|
1987-04-21 |
1989-03-28 |
Fiori David |
Frequency-to-voltage converter
|
US4789837A
(en)
|
1987-04-22 |
1988-12-06 |
Sangamo Weston, Inc. |
Switched capacitor mixer/multiplier
|
FR2615675B1
(fr)
|
1987-05-21 |
1989-06-30 |
Alcatel Espace |
Procede de demodulation de signaux modules numeriquement et dispositif de mise en oeuvre d'un tel procede
|
US4855894A
(en)
|
1987-05-25 |
1989-08-08 |
Kabushiki Kaisha Kenwood |
Frequency converting apparatus
|
US4811362A
(en)
|
1987-06-15 |
1989-03-07 |
Motorola, Inc. |
Low power digital receiver
|
US4910752A
(en)
|
1987-06-15 |
1990-03-20 |
Motorola, Inc. |
Low power digital receiver
|
US4772853A
(en)
|
1987-08-12 |
1988-09-20 |
Rockwell International Corporation |
Digital delay FM demodulator with filtered noise dither
|
US4862121A
(en)
|
1987-08-13 |
1989-08-29 |
Texas Instruments Incorporated |
Switched capacitor filter
|
GB8719849D0
(en)
|
1987-08-21 |
1987-09-30 |
British Telecomm |
Fsk discriminator
|
FR2619973B1
(fr)
|
1987-08-26 |
1990-01-05 |
France Etat |
Dispositif de filtre echantillonne a capacites commutees
|
DE3887409T2
(de)
|
1987-08-29 |
1994-06-30 |
Fujitsu Ltd |
FSK-Demodulationsschaltung.
|
GB2209442A
(en)
|
1987-09-04 |
1989-05-10 |
Marconi Instruments Ltd |
Frequency synthesizer
|
US4841265A
(en)
|
1987-09-25 |
1989-06-20 |
Nec Corporation |
Surface acoustic wave filter
|
US5020149A
(en)
|
1987-09-30 |
1991-05-28 |
Conifer Corporation |
Integrated down converter and interdigital filter apparatus and method for construction thereof
|
CA1300289C
(en)
|
1987-10-27 |
1992-05-05 |
Paul Anton Nysen |
Passive universal communicator
|
US4922452A
(en)
|
1987-11-16 |
1990-05-01 |
Analytek, Ltd. |
10 Gigasample/sec two-stage analog storage integrated circuit for transient digitizing and imaging oscillography
|
US4814649A
(en)
|
1987-12-18 |
1989-03-21 |
Rockwell International Corporation |
Dual gate FET mixing apparatus with feedback means
|
USRE35494E
(en)
|
1987-12-22 |
1997-04-22 |
Sgs-Thomson Microelectronics, S.R.L. |
Integrated active low-pass filter of the first order
|
US4857928A
(en)
|
1988-01-28 |
1989-08-15 |
Motorola, Inc. |
Method and arrangement for a sigma delta converter for bandpass signals
|
US4819252A
(en)
|
1988-02-16 |
1989-04-04 |
Thomson Consumer Electronics, Inc. |
Sampled data subsampling apparatus
|
GB2215545A
(en)
|
1988-03-16 |
1989-09-20 |
Philips Electronic Associated |
A direct-conversion receiver
|
NL8800696A
(nl)
|
1988-03-21 |
1989-10-16 |
Philips Nv |
Bemonsteringssysteem, pulsgeneratiesschakeling en bemonsteringsschakeling geschikt voor toepassing in een bemonsteringssysteem, en oscilloscoop voorzien van een bemonsteringssysteem.
|
US4885671A
(en)
|
1988-03-24 |
1989-12-05 |
General Electric Company |
Pulse-by-pulse current mode controlled power supply
|
GB2215945A
(en)
|
1988-03-26 |
1989-09-27 |
Stc Plc |
Digital direct conversion radio
|
US4995055A
(en)
|
1988-06-16 |
1991-02-19 |
Hughes Aircraft Company |
Time shared very small aperture satellite terminals
|
GB2219899A
(en)
|
1988-06-17 |
1989-12-20 |
Philips Electronic Associated |
A zero if receiver
|
FR2633467B1
(fr)
|
1988-06-24 |
1990-08-24 |
Thomson Csf |
Multiplicateur de frequence a rang de multiplication programmable
|
US4893341A
(en)
|
1989-08-01 |
1990-01-09 |
At&E Corporation |
Digital receiver operating at sub-nyquist sampling rate
|
US4944025A
(en)
|
1988-08-09 |
1990-07-24 |
At&E Corporation |
Direct conversion FM receiver with offset
|
ATE96558T1
(de)
|
1988-08-31 |
1993-11-15 |
Siemens Ag |
Multieingangs-vier-quadranten-multiplizierer.
|
GB2222488A
(en)
|
1988-08-31 |
1990-03-07 |
Philips Electronic Associated |
Broad bandwidth planar power combiner/divider device
|
SE463540B
(sv)
|
1988-09-19 |
1990-12-03 |
Ericsson Telefon Ab L M |
Saett foer att i ett radiokommunikationssystem digitalisera godtyckliga radiosignaler samt anordning foer utoevande av saettet
|
US5062122A
(en)
|
1988-09-28 |
1991-10-29 |
Kenwood Corporation |
Delay-locked loop circuit in spread spectrum receiver
|
US5220583A
(en)
|
1988-10-03 |
1993-06-15 |
Motorola, Inc. |
Digital fm demodulator with a reduced sampling rate
|
US4972436A
(en)
|
1988-10-14 |
1990-11-20 |
Hayes Microcomputer Products, Inc. |
High performance sigma delta based analog modem front end
|
US4868908A
(en)
|
1988-10-18 |
1989-09-19 |
Ventritex |
Power supply down-conversion, regulation and low battery detection system
|
US4943974A
(en)
|
1988-10-21 |
1990-07-24 |
Geostar Corporation |
Detection of burst signal transmissions
|
US5016242A
(en)
|
1988-11-01 |
1991-05-14 |
Gte Laboratories Incorporated |
Microwave subcarrier generation for fiber optic systems
|
JPH02131629A
(ja)
|
1988-11-12 |
1990-05-21 |
Nec Corp |
周波数ダイバーシティ用送受信装置
|
US4894766A
(en)
|
1988-11-25 |
1990-01-16 |
Hazeltine Corporation |
Power supply frequency converter
|
US4873492A
(en)
|
1988-12-05 |
1989-10-10 |
American Telephone And Telegraph Company, At&T Bell Laboratories |
Amplifier with modulated resistor gain control
|
US5280648A
(en)
|
1988-12-06 |
1994-01-18 |
Zenith Electronics Corporation |
Double-balanced high level wide band RF mixer
|
US5027163A
(en)
|
1988-12-06 |
1991-06-25 |
Zenith Electronics Corporation |
High level wide band RF mixer
|
GB2225910A
(en)
|
1988-12-08 |
1990-06-13 |
Philips Electronic Associated |
Processing sampled analogue electrical signals
|
FR2640829B1
(fr)
|
1988-12-20 |
1991-02-08 |
Thomson Hybrides Microondes |
Dispositif pour la modulation ou la demodulation directe en hyperfrequences
|
US4885587A
(en)
|
1988-12-22 |
1989-12-05 |
Westinghouse Electric Corp. |
Multibit decorrelated spur digital radio frequency memory
|
JP2576612B2
(ja)
|
1988-12-28 |
1997-01-29 |
日本ビクター株式会社 |
信号変換装置
|
US5058107A
(en)
|
1989-01-05 |
1991-10-15 |
Hughes Aircraft Company |
Efficient digital frequency division multiplexed signal receiver
|
US5251218A
(en)
|
1989-01-05 |
1993-10-05 |
Hughes Aircraft Company |
Efficient digital frequency division multiplexed signal receiver
|
US4890162A
(en)
|
1989-01-26 |
1989-12-26 |
Rca Licensing Corporation |
Adjustable antialias filters
|
US5006854A
(en)
|
1989-02-13 |
1991-04-09 |
Silicon Systems, Inc. |
Method and apparatus for converting A/D nonlinearities to random noise
|
US4896152A
(en)
|
1989-03-02 |
1990-01-23 |
General Electric Company |
Telemetry system with a sending station using recursive filter for bandwidth limiting
|
US4902979A
(en)
|
1989-03-10 |
1990-02-20 |
General Electric Company |
Homodyne down-converter with digital Hilbert transform filtering
|
US4888557A
(en)
|
1989-04-10 |
1989-12-19 |
General Electric Company |
Digital subharmonic sampling down-converter
|
DK0393470T3
(da)
|
1989-04-20 |
1995-07-10 |
Siemens Ag |
Transmissionsstrækning
|
CA2014916C
(en)
|
1989-04-20 |
1994-11-08 |
Yoichiro Minami |
Direct conversion receiver with dithering local carrier frequency for detecting transmitted carrier frequency
|
FR2646741B1
(fr)
|
1989-05-03 |
1994-09-02 |
Thomson Hybrides Microondes |
Echantillonneur-bloqueur a haute frequence d'echantillonnage
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1989-05-05 |
1990-06-05 |
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Constant frequency zero-voltage-switching multi-resonant converter
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1989-05-30 |
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Motorola, Inc. |
Wide bandwidth frequency doubler
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1989-06-09 |
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Disposicion de un circuito para la conversion de frecuencias.
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1989-06-29 |
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Symbol Technologies, Inc. |
Packet data communication network
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1989-08-04 |
1991-02-12 |
General Electric Company |
Radio frequency receiver for a NMR instrument
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1989-09-12 |
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Adjustable output level signal transmitter
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1989-09-28 |
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1989-09-29 |
1990-09-04 |
Raytheon Company |
Waveguide excited enhancement and inherent rejection of interference in a subharmonic mixer
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1989-09-29 |
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Synchronous demodulator
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1989-10-04 |
1991-04-30 |
At&T Bell Laboratories |
Integral switched capacitor FIR filter/digital-to-analog converter for sigma-delta encoded digital audio
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JPH03132185A
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1989-10-17 |
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1989-11-02 |
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Frequency division multiplex guardband communication system for sending information over the guardbands
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1989-11-20 |
1991-11-05 |
Unisys Corporation |
Doppler frequency compensation circuit
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JPH03160803A
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1989-11-20 |
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バランスドミキサー回路
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1989-12-04 |
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Method and apparatus for transmitting broadband amplitude modulated radio frequency signals over optical links
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1989-12-14 |
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Northern Telecom Limited |
Second order active filters
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1989-12-20 |
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General Electric Company |
Reaction wheel fricton compensation using dither
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1989-12-20 |
1991-06-11 |
Westinghouse Electric Corp. |
Voltage-controlled oscillator with rapid tuning loop and method for tuning same
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1989-12-27 |
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Digital parallel correlator
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GB2240240A
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1990-01-19 |
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Philips Electronic Associated |
Radio receiver for direct sequence spread spectrum signals
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JPH063861B2
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1990-02-14 |
1994-01-12 |
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Zero if radio receiver for intermittent operation
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Offset frequency converter for phase/amplitude data measurement receivers
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1990-03-13 |
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Wiltron Company |
Method and apparatus for increasing the high frequency sensitivity response of a sampler frequency converter
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1990-03-23 |
1993-01-12 |
Rockwell International Corporation |
Selectivity system for a direct conversion receiver
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1990-03-23 |
1992-03-10 |
Rockwell International Corporation |
Automatic gain control system for a direct conversion receiver
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1990-03-23 |
1992-03-10 |
Rockwell International Corporation |
Direct conversion receiver with tri-phase architecture
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JPH02276351A
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1990-03-26 |
1990-11-13 |
Seiko Epson Corp |
Fsk復調回路
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JPH043540A
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1990-04-19 |
1992-01-08 |
Yamaha Corp |
スペクトラム拡散通信装置
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GB9010637D0
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1990-05-11 |
1990-07-04 |
Secr Defence |
A high frequency multichannel diversity differential phase shift(dpsk)communications system
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1990-05-18 |
1991-07-16 |
Northern Telecom Limited |
Frequency converter for a radio communications system
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1990-06-01 |
1991-04-23 |
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Digital data and analog radio frequency transmitter
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1990-06-01 |
1991-09-10 |
Gary Rogalski |
Wireless audio and video signal transmitter and receiver system apparatus
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JP2927896B2
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1990-06-28 |
1999-07-28 |
日本電気株式会社 |
スペクトラム抑制回路
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JP2679889B2
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1990-07-19 |
1997-11-19 |
株式会社テック |
無線通信装置及びその装置の受信制御方式
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JP2817373B2
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1990-07-30 |
1998-10-30 |
松下電器産業株式会社 |
ダイレクトコンバージョン受信機
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GB9017418D0
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1990-08-08 |
1990-09-19 |
Gen Electric Co Plc |
Half frequency mixer
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1990-08-27 |
1998-06-23 |
Axonn Corporation |
Binary phase shift keying modulation system and/or frequency multiplier
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1990-08-31 |
1993-05-25 |
Karkota Jr Frank P |
Multiple audio channel broadcast system
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JPH04123614A
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1990-09-14 |
1992-04-23 |
Nec Corp |
レベル変換回路
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JPH04127601A
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1990-09-18 |
1992-04-28 |
Victor Co Of Japan Ltd |
周波数変換回路
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1990-10-16 |
1992-06-30 |
Stanford Telecommunications, Inc. |
Demodulation method and apparatus incorporating charge coupled devices
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고주파 전력 증폭기의 출력레벨 제어회로
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KR920010383B1
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1990-10-23 |
1992-11-27 |
삼성전자 주식회사 |
방송신호 직접 수신회로
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1990-10-25 |
1993-06-22 |
Motorola, Inc. |
Adaptive information signal receiver
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JP2801389B2
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1990-11-02 |
1998-09-21 |
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信号処理装置
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JPH04177946A
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1990-11-09 |
1992-06-25 |
Sony Corp |
デジタル復調装置
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Ontvanger.
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1990-11-19 |
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Motorola, Inc. |
Method and apparatus for compensation of imbalance in zero-if downconverters
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1990-11-23 |
1992-05-29 |
Alcatel Telspace |
Melangeur hyperfrequence symetrique.
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1990-11-30 |
1992-01-21 |
Grumman Aerospace Corporation |
Modified cascode mixer circuit
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1990-12-05 |
1992-08-04 |
At&T Bell Laboratories |
Transmitter including an fsk modulator having a switched capacitor
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Audio Precision, Inc. |
Tunable bandpass filter system and filtering method
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1991-01-10 |
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Demodulation process for binary data
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JP2800500B2
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1991-10-01 |
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松下電器産業株式会社 |
バースト送信出力制御回路
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1991-01-15 |
1993-06-15 |
Pactel Corporation |
Frequency signal generator apparatus and method for simulating interference in mobile communication systems
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JP2850160B2
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1991-01-25 |
1999-01-27 |
松下電器産業株式会社 |
時分割複信無線送受信装置
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1991-02-04 |
1993-05-18 |
Motorola, Inc. |
Zero intermediate frequency noise blanker
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1991-02-25 |
1993-09-28 |
Rockwell International Corporation |
Phase and gain error control system for use in an i/q direct conversion receiver
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JP2749456B2
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1991-03-06 |
1998-05-13 |
三菱電機株式会社 |
無線通信機
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1991-03-25 |
1992-09-22 |
Motorola, Inc. |
Bandpass filter demodulation for FM-CW systems
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1991-04-01 |
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Motorola, Inc. |
Generating transmit injection from receiver first and second injections
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1991-04-11 |
1994-05-24 |
Usa Digital Radio |
Method and apparatus for digital audio broadcasting and reception
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1991-04-11 |
1994-01-11 |
Usa Digital Radio |
Method and apparatus for digital audio broadcasting and reception
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1991-04-19 |
1992-07-14 |
General Instrument Corporation |
Apparatus and method for recovery of multiphase modulated data
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1991-04-29 |
1993-08-24 |
Echelon Corporation |
Transceiver with rapid mode switching capability
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GB9109617D0
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1991-05-03 |
1991-06-26 |
Texas Instruments Ltd |
Method and apparatus for signal processing
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1991-05-06 |
1993-08-24 |
Chen Shih Chung |
Wireless intercom having a transceiver in which a bias current for the condenser microphone and the driving current for the speaker are used to charge a battery during transmission and reception, respectively
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1991-05-10 |
1994-10-11 |
Echelon Corporation |
Reconstruction of signals using redundant channels
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1991-05-10 |
1992-11-26 |
Echelon Corporation |
Power line communication while avoiding determinable interference harmonics
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1991-05-13 |
1998-08-04 |
Omnipoint Corporation |
Multi-band, multi-mode spread-spectrum communication system
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1991-06-21 |
1994-08-09 |
Harris Corporation |
Phase noise measurements utilizing a frequency down conversion/multiplier, direct spectrum measurement technique
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1991-06-27 |
1993-11-09 |
Hewlett-Packard Company |
Protocol analyzer pod for the ISDN U-interface
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JPH05102899A
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1991-08-16 |
1993-04-23 |
Shiyoudenriyoku Kosoku Tsushin Kenkyusho:Kk |
多周波通信方式
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1991-08-22 |
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Triquint Semiconductor, Inc. |
Integrating phase detector
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1991-08-26 |
1992-09-29 |
Westinghouse Electric Corp. |
Direct digital FM waveform generator for radar systems
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FR2681994B1
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1991-09-26 |
1994-09-30 |
Alcatel Telspace |
Dispositif de transmission numerique comportant un recepteur a demodulation coherente realisee directement en hyperfrequence.
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1991-09-30 |
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American Neuralogix, Inc. |
Hamming data correlator having selectable word-length
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1991-10-17 |
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Adaptive notch filter for FM interference cancellation
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FR2682841B1
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1991-10-21 |
1993-11-19 |
Alcatel Telspace |
Procede de detection de faux accrochages d'un signal de reference sur un signal initialement module en modulation numerique plurivalente decalee, procede de demodulation numerique coherente l'utilisant.
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1991-10-28 |
1993-06-22 |
Ford Motor Company |
Digital quadrature radio receiver with two-step processing
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1991-10-31 |
1993-04-20 |
Advanced Micro Devices, Inc. |
Frequency controlled recursive oscillator having sinusoidal output
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1991-10-31 |
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サンプルホールド型位相比較回路
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Honeywell Inc. |
Resonant loop resistive FET mixer
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1991-11-27 |
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Moltiplicatore di frequenza a radiofrequenza comprendente un circuito di controllo automatico di livello
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DE4241882A1
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1991-12-13 |
1993-06-17 |
Clarion Co Ltd |
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JPH05168041A
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1991-12-16 |
1993-07-02 |
Sony Corp |
映像信号記録装置
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JPH05175734A
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1991-12-25 |
1993-07-13 |
Matsushita Electric Ind Co Ltd |
Fm復調器
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JPH05175730A
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1991-12-25 |
1993-07-13 |
Fujitsu Ten Ltd |
時分割式ダイレクト受信機
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JPH05183456A
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1991-12-27 |
1993-07-23 |
Nec Corp |
制御信号発生装置
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1992-01-17 |
1992-12-15 |
Burr-Brown Corporation |
Bootstrapped FET sampling switch
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1992-02-17 |
1999-01-06 |
日本電気株式会社 |
ディジタル・アナログ変換器
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JPH05259745A
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1992-03-11 |
1993-10-08 |
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ミキサ回路
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1994-01-25 |
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Method and apparatus for multiple access between transceivers in wireless communications using OFDM spread spectrum
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1992-04-03 |
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Single sideband radio signal processing system
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The United States Of America As Represented By The Secretary Of The Navy |
System for (N•M)-bit correlation using N M-bit correlators
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System for simultaneous analog and digital communications over an analog channel
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半導体装置
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1994-01-25 |
Hitachi America, Ltd. |
Apparatus for NTSC signal interference cancellation through the use of digital recursive notch filters
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1992-05-14 |
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Hitachi America, Ltd. |
Method and apparatus for NTSC signal interference cancellation using recursive digital notch filters
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1992-05-14 |
1994-06-28 |
Hitachi America, Ltd. |
Narrowband interference cancellation through the use of digital recursive notch filters
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JPH05327356A
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1992-05-22 |
1993-12-10 |
Sanyo Electric Co Ltd |
周波数変換装置
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1992-06-08 |
2003-01-16 |
Motorola Inc |
Automatische verstärkungsregulierung für einen empfänger
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JP3166321B2
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1992-07-01 |
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変調信号送信システム
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Hitachi, Ltd. |
Non-volatile semiconductor memory
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Information signal processing apparatus
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1992-08-06 |
1995-11-07 |
National Semiconductor Corporation |
Even order term mixer
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JPH0658705A
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1992-08-12 |
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Mishima Kosan Co Ltd |
金属物体の距離検出装置
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Digital down converter and method
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A direct conversion receiver for multiple protocols
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FR2695211B1
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Kollmorgen Artus |
Dispositif et procédé d'analyse de signaux ILS.
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Motorola Inc. |
Push pull buffer with noise cancelling symmetry
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1992-09-08 |
1995-11-28 |
The Regents Of The University Of California |
High speed transient sampler
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JPH0690225A
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1992-09-09 |
1994-03-29 |
Shodenryoku Kosoku Tsushin Kenkyusho:Kk |
ダイバーシティ無線受信機
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1992-09-17 |
1994-08-16 |
Delco Electronics Corporation |
Interface circuit for interfacing a peripheral device with a microprocessor operating in either a synchronous or an asynchronous mode
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FR2696598B1
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1992-10-01 |
1994-11-04 |
Sgs Thomson Microelectronics |
Circuit élévateur de tension de type pompe de charge avec oscillateur bootstrapé.
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Highly integrated portable electronic work slate unit
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Hughes Aircraft Company |
Multi-processor demodulator for digital cellular base station employing partitioned demodulation procedure with pipelined execution
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JPH06130821A
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1992-10-19 |
1994-05-13 |
Fuji Photo Film Co Ltd |
湿式電子写真現像装置
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1992-10-22 |
1995-06-27 |
Digital Equipment Corporation |
Switch circuit for setting and signaling a voltage level
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1992-10-30 |
1996-12-31 |
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Equipment for generating a transmit signal from first and second digital signals
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1992-11-02 |
1995-02-14 |
Harris Corporation |
Least-mean squares adaptive digital filter havings variable size loop bandwidth
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DE4237692C1
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1992-11-07 |
1994-03-03 |
Grundig Emv |
Empfänger für ein digitales Rundfunksignal
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JP3111425B2
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株式会社鷹山 |
フィルタ回路
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TW225067B
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1992-11-26 |
1994-06-11 |
Philips Electronics Nv |
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KR100355684B1
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1992-11-26 |
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직접변환수신기
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Motorola, Inc. |
High speed sample and hold circuit and radio constructed therewith
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DE69427311T2
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1993-01-08 |
2001-11-22 |
Sony Corp |
Vorspannungsstabilisierungsschaltung
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JP3025384B2
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1993-01-13 |
2000-03-27 |
シャープ株式会社 |
デジタルfm復調装置
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1993-01-27 |
1997-08-26 |
Gte Laboratories Incorporated |
Frequency hopping synthesizer using dual gate amplifiers
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JPH06237276A
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1993-02-12 |
1994-08-23 |
Fujitsu Ltd |
直交変調器
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CA2154180C
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1993-02-17 |
1999-04-06 |
Alan L. Wilson |
Multiple-modulation communication system
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JP3400003B2
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1993-02-18 |
2003-04-28 |
株式会社日立製作所 |
複素変復調方式
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GB2277010B
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1993-03-01 |
1997-09-17 |
Texas Instruments Ltd |
A method of generation and demodulation of modulated signals and radio transmitters and receivers using the method
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1995-02-14 |
Motorola, Inc. |
Integratable DC blocking circuit
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EP0639314B1
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1993-03-04 |
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Modulare funkübertragungsanordnung
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Europ Agence Spatiale |
Récepteur de signaux radiofréquences.
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1993-03-31 |
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British Telecommunications Plc |
Generation of optical signals with RF components
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1996-02-27 |
Analog Devices, Inc. |
Double sampled biquad switched capacitor filter
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