DE69531469D1 - Quadraturmodulator für den Quasi-Mikrowellenbereich eines digitalen Übertragungssystems - Google Patents

Quadraturmodulator für den Quasi-Mikrowellenbereich eines digitalen Übertragungssystems

Info

Publication number
DE69531469D1
DE69531469D1 DE69531469T DE69531469T DE69531469D1 DE 69531469 D1 DE69531469 D1 DE 69531469D1 DE 69531469 T DE69531469 T DE 69531469T DE 69531469 T DE69531469 T DE 69531469T DE 69531469 D1 DE69531469 D1 DE 69531469D1
Authority
DE
Germany
Prior art keywords
quasi
transmission system
digital transmission
quadrature modulator
microwave range
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 - Fee Related
Application number
DE69531469T
Other languages
English (en)
Other versions
DE69531469T2 (de
Inventor
Masaho Mineo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NEC Corp filed Critical NEC Corp
Application granted granted Critical
Publication of DE69531469D1 publication Critical patent/DE69531469D1/de
Publication of DE69531469T2 publication Critical patent/DE69531469T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • H04L27/2032—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner
    • H04L27/2053—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases
    • H04L27/206—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers
    • H04L27/2064—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers using microwave technology
DE69531469T 1994-03-28 1995-03-27 Quadraturmodulator für den Quasi-Mikrowellenbereich eines digitalen Übertragungssystems Expired - Fee Related DE69531469T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP6082292A JP2970394B2 (ja) 1994-03-28 1994-03-28 直交変調装置
JP8229294 1994-03-28

Publications (2)

Publication Number Publication Date
DE69531469D1 true DE69531469D1 (de) 2003-09-18
DE69531469T2 DE69531469T2 (de) 2004-06-09

Family

ID=13770473

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69531469T Expired - Fee Related DE69531469T2 (de) 1994-03-28 1995-03-27 Quadraturmodulator für den Quasi-Mikrowellenbereich eines digitalen Übertragungssystems

Country Status (7)

Country Link
US (1) US5561401A (de)
EP (1) EP0675621B1 (de)
JP (1) JP2970394B2 (de)
CN (1) CN1106742C (de)
CA (1) CA2145622C (de)
DE (1) DE69531469T2 (de)
NO (1) NO317315B1 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11163630A (ja) * 1997-09-08 1999-06-18 Murata Mfg Co Ltd 発振器モジュール
KR100317322B1 (ko) * 1999-01-25 2001-12-22 김영환 위상 보상기를 갖는 큐피에스케이(qpsk) 변조 장치
US7460612B2 (en) * 2004-08-12 2008-12-02 Texas Instruments Incorporated Method and apparatus for a fully digital quadrature modulator
US8085868B2 (en) * 2004-11-03 2011-12-27 Freescale Semiconductor, Inc. Phase modulating and combining circuit
GB0616448D0 (en) * 2006-08-18 2006-09-27 Ici Plc Methods of and apparatus for dispensing powder samples
US11140018B2 (en) * 2014-01-07 2021-10-05 Quantumsine Acquisitions Inc. Method and apparatus for intra-symbol multi-dimensional modulation
US10382246B2 (en) * 2014-01-07 2019-08-13 Quantumsine Acquisitions Inc. Combined amplitude-time and phase modulation

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3273079A (en) * 1964-03-05 1966-09-13 Adams Russel Co Inc Hybrid circuit having separate coupling transformers at the sum port and difference port and having tuning means to improve operation
US3731217A (en) * 1970-04-03 1973-05-01 Research Corp Quasi-optical signal processing utilizing hybrid matrices
JPS61172401A (ja) * 1985-01-28 1986-08-04 Mitsubishi Electric Corp 半導体移相器
JPS61238144A (ja) * 1985-04-15 1986-10-23 Nippon Telegr & Teleph Corp <Ntt> 位相調整回路
US5001492A (en) * 1988-10-11 1991-03-19 Hughes Aircraft Company Plural layer co-planar waveguide coupling system for feeding a patch radiator array
JPH02174343A (ja) * 1988-12-27 1990-07-05 Oki Electric Ind Co Ltd 直交変調器
JP3088021B2 (ja) * 1990-12-20 2000-09-18 株式会社村田製作所 電圧制御発振器
JPH04287542A (ja) * 1991-03-18 1992-10-13 Nec Eng Ltd 直交変調回路
JP2616280B2 (ja) * 1991-04-27 1997-06-04 株式会社村田製作所 発振器及びその製造方法
DE69321907T2 (de) * 1992-03-19 1999-04-22 Tdk Corp Hybrider koppler
JPH05347529A (ja) * 1992-06-12 1993-12-27 Sony Corp 移相回路及び直交変復調装置
JPH0730598A (ja) * 1993-07-15 1995-01-31 Tdk Corp 直交変調器

Also Published As

Publication number Publication date
NO951132L (no) 1995-09-29
CA2145622C (en) 1998-11-03
NO317315B1 (no) 2004-10-11
CN1128450A (zh) 1996-08-07
EP0675621A3 (de) 1998-10-21
US5561401A (en) 1996-10-01
JP2970394B2 (ja) 1999-11-02
EP0675621B1 (de) 2003-08-13
CN1106742C (zh) 2003-04-23
EP0675621A2 (de) 1995-10-04
CA2145622A1 (en) 1995-09-29
JPH07273820A (ja) 1995-10-20
DE69531469T2 (de) 2004-06-09
NO951132D0 (no) 1995-03-24

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee