DE3168158D1 - Methods for generating the modulations "duobinary fsk","tamed fsk" and "tfm", and modulators for carrying out these methods - Google Patents
Methods for generating the modulations "duobinary fsk","tamed fsk" and "tfm", and modulators for carrying out these methodsInfo
- Publication number
- DE3168158D1 DE3168158D1 DE8181401444T DE3168158T DE3168158D1 DE 3168158 D1 DE3168158 D1 DE 3168158D1 DE 8181401444 T DE8181401444 T DE 8181401444T DE 3168158 T DE3168158 T DE 3168158T DE 3168158 D1 DE3168158 D1 DE 3168158D1
- Authority
- DE
- Germany
- Prior art keywords
- fsk
- methods
- duobinary
- tfm
- tamed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
- H04L27/20—Modulator circuits; Transmitter circuits
- H04L27/2003—Modulator circuits; Transmitter circuits for continuous phase modulation
- H04L27/2007—Modulator circuits; Transmitter circuits for continuous phase modulation in which the phase change within each symbol period is constrained
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8020867A FR2490902B1 (fr) | 1980-09-24 | 1980-09-24 | Procede de generation de modulations duobinaire fsk, tamed fsk et tfm, et modulateurs mettant en oeuvre ces procedes |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3168158D1 true DE3168158D1 (en) | 1985-02-21 |
Family
ID=9246385
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8181401444T Expired DE3168158D1 (en) | 1980-09-24 | 1981-09-16 | Methods for generating the modulations "duobinary fsk","tamed fsk" and "tfm", and modulators for carrying out these methods |
Country Status (4)
Country | Link |
---|---|
US (1) | US4426710A (de) |
EP (1) | EP0049189B1 (de) |
DE (1) | DE3168158D1 (de) |
FR (1) | FR2490902B1 (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2009713A1 (en) * | 1989-02-28 | 1990-08-31 | Robert P. Mcnamara | Local area network communication system |
US5088111A (en) * | 1989-02-28 | 1992-02-11 | First Pacific Networks | Modulation and demodulation system employing AM-PSK and FSK for communication system using digital signals |
US5127024A (en) * | 1990-05-30 | 1992-06-30 | Fattouche Michel T | Conversion filtering for digital signaling systems |
JP2579243B2 (ja) * | 1990-11-07 | 1997-02-05 | シャープ株式会社 | 復調装置 |
DE4343252A1 (de) * | 1993-12-17 | 1995-06-22 | Thomson Brandt Gmbh | Schaltung zum Dekodieren von 2T-vorkodierten Binärsignalen |
US5812604A (en) * | 1996-07-16 | 1998-09-22 | Scientific-Atlanta, Inc. | Constant envelope continuous phase frequency shift key modulation apparatus and method at radio frequencies |
US7072414B1 (en) * | 1999-09-07 | 2006-07-04 | The Aerospace Corporation | Gaussian minimum shift keying (GMSK) precoding communication method |
FR2836612B1 (fr) * | 2002-02-22 | 2004-10-15 | Thales Sa | Procede de transmission de donnees numeriques au moyen d'un modulateur de frequence et modulateur correspondant |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3388330A (en) * | 1965-03-19 | 1968-06-11 | Bell Telephone Labor Inc | Partial response multilevel data system |
US3993868A (en) | 1974-08-19 | 1976-11-23 | Rca Corporation | Minimum shift keying communication system |
NL7709917A (nl) * | 1977-09-09 | 1979-03-13 | Philips Nv | Systeem voor datatransmissie met behulp van een hoekgemoduleerde draaggolf van constante amplitude. |
FR2428345A1 (fr) * | 1978-06-06 | 1980-01-04 | Telediffusion Fse | Modulateur pour modulation coherente par deplacement de frequence d'indice 1/2 avec continuite de la phase du signal module |
-
1980
- 1980-09-24 FR FR8020867A patent/FR2490902B1/fr not_active Expired
-
1981
- 1981-09-16 DE DE8181401444T patent/DE3168158D1/de not_active Expired
- 1981-09-16 EP EP81401444A patent/EP0049189B1/de not_active Expired
- 1981-09-17 US US06/303,128 patent/US4426710A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
FR2490902A1 (fr) | 1982-03-26 |
US4426710A (en) | 1984-01-17 |
FR2490902B1 (fr) | 1988-02-19 |
EP0049189A1 (de) | 1982-04-07 |
EP0049189B1 (de) | 1985-01-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE3276347D1 (en) | Amplitude modulator | |
SG65984G (en) | Form,fill and seal packaging methods and apparatus | |
GB2141271B (en) | Apparatus for symmetrically truncating two's complement binary signals | |
IL59799A (en) | F.s.k.frequency modulator | |
GB2126443B (en) | Digitally-driven sine-cosine generator and modulator | |
DE3279739D1 (en) | Electro-optic modulator | |
EP0245937A3 (en) | Constant amplitude psk modulator | |
DE3168158D1 (en) | Methods for generating the modulations "duobinary fsk","tamed fsk" and "tfm", and modulators for carrying out these methods | |
DE3366775D1 (en) | Multicomponent anodes, and accumulaturs utilising said anodes | |
GB2201867B (en) | Dpsk/fsk/dtmf/answer tone modulator/generator | |
EP0267785A3 (en) | Digital non-linear pre-emphasis/de-emphasis apparatus | |
DE3070864D1 (en) | Binary phase shift modulations, and modulators | |
GB2103005B (en) | Modulation effect device | |
DE3067345D1 (en) | Apparatus for generating constant-envelope, angle-modulated signals | |
NZ197037A (en) | Biocidal polymers and paint containing them | |
DE3163330D1 (en) | Seal ring type axle seal device | |
JPS56139965A (en) | Intermittent and continuous ink pouring device which can be changed over | |
JPS5775085A (en) | Keying signal generator | |
JPS56133366A (en) | New isoindoline color and use thereof | |
DE3174523D1 (en) | Digital amplitude modulating circuitry | |
EG15586A (en) | Dispositif de verrouillage perimetique integral pour fermetures | |
DE3361264D1 (en) | Amplitude modulator | |
HK68583A (en) | Amplitude modulated transmitter | |
CA47113S (en) | Combined jar and lid | |
GB2086686B (en) | Chroma keying |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8339 | Ceased/non-payment of the annual fee |