DK159707C - Digital modulationsfremgangsmaade - Google Patents

Digital modulationsfremgangsmaade

Info

Publication number: DK159707C
Authority: DK; Denmark
Prior art keywords: modulated carrier; oscillating signals; digital words; phase; amplitude
Prior art date: 1981-04-30

Application number

DK192282A

Other languages

English (en)

Other versions

DK159707B (da

DK192282A (da

Inventor

Herbert Weber

Original Assignee

Ant Nachrichtentech

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.)

1981-04-30

Filing date

1982-04-29

Publication date

1991-04-15

1982-04-29 Application filed by Ant Nachrichtentech filed Critical Ant Nachrichtentech

1982-10-31 Publication of DK192282A publication Critical patent/DK192282A/da

1990-11-19 Publication of DK159707B publication Critical patent/DK159707B/da

1991-04-15 Application granted granted Critical

1991-04-15 Publication of DK159707C publication Critical patent/DK159707C/da

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
- H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
- H04L27/3405—Modifications of the signal space to increase the efficiency of transmission, e.g. reduction of the bit error rate, bandwidth, or average power

Landscapes

Engineering & Computer Science (AREA)
Computer Networks & Wireless Communication (AREA)
Signal Processing (AREA)
Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Liquid Crystal (AREA)
Oscillators With Electromechanical Resonators (AREA)
Holo Graphy (AREA)

DK192282A 1981-04-30 1982-04-29 Digital modulationsfremgangsmaade DK159707C (da)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE19813117134 DE3117134A1 (de)	1981-04-30	1981-04-30	Digitale modulationsverfahren
DE3117134		1981-04-30

Publications (3)

Publication Number	Publication Date
DK192282A DK192282A (da)	1982-10-31
DK159707B DK159707B (da)	1990-11-19
DK159707C true DK159707C (da)	1991-04-15

Family

ID=6131161

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DK192282A DK159707C (da)	1981-04-30	1982-04-29	Digital modulationsfremgangsmaade

Country Status (7)

Country	Link
US (1)	US4495477A (da)
EP (1)	EP0064131B1 (da)
AT (1)	ATE12998T1 (da)
CA (1)	CA1188759A (da)
DE (2)	DE3117134A1 (da)
DK (1)	DK159707C (da)
IE (1)	IE53013B1 (da)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4538284A (en) *	1981-03-25	1985-08-27	Ese Limited	Signal structures with data encoding/decoding for QCM modulations
GB2118003B (en) *	1982-02-02	1985-07-31	Racal Milgo Ltd	Differential encoder and decoder for transmitting binary data
JPS59165540A (ja) *	1983-03-09	1984-09-18	Ricoh Co Ltd	デ−タ伝送制御方式
US4894844A (en) *	1987-06-12	1990-01-16	Codex Corporation	Signal constellations
US4959842A (en) *	1988-04-13	1990-09-25	Codex Corporation	Signal constellations
DE3934187C1 (da) *	1989-10-13	1991-03-14	Ant Nachrichtentechnik Gmbh, 7150 Backnang, De
US6009132A (en) *	1997-07-25	1999-12-28	Globespan Semiconductor, Inc.	System and method for obtaining clock recovery from a received data signal
GB9807403D0 (en) *	1998-04-06	1998-06-03	Northern Telecom Ltd	Apparatus and method for reducing cross-talk in broadband systems and method of improving data recovery
JP7110386B2 (ja)	2018-04-12	2022-08-01	レイセオンカンパニー	光信号における位相変化検出
US10554306B1 (en)	2019-03-13	2020-02-04	Raytheon Company	Constant envelope path-dependent phase modulation
US11411654B1 (en)	2021-03-24	2022-08-09	Raytheon Company	Method for generating a constant envelope waveform when encoding multiple sub channels on the same carrier

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS5038488B1 (da) *	1970-08-14	1975-12-10
JPS5125303B1 (da) *	1971-02-10	1976-07-30
US3845412A (en) *	1973-10-12	1974-10-29	Microwave Ass Inc	Digital modulate/demodulate system
US3983485A (en) *	1975-02-28	1976-09-28	Rixon Inc.	Multi-phase and multi-amplitude level modulator and modulation and demodulation methods
DE2550795A1 (de) *	1975-11-10	1977-05-26	Hycom Inc	Datenuebertragungssystem mit einem optimalen acht-vektoren signalisier- schema
US4404532A (en) *	1978-09-29	1983-09-13	Communications Satellite Corporation	Modulator having improved bandwidth and power requirements

1981
- 1981-04-30 DE DE19813117134 patent/DE3117134A1/de not_active Withdrawn
1982
- 1982-02-26 AT AT82101462T patent/ATE12998T1/de active
- 1982-02-26 EP EP82101462A patent/EP0064131B1/de not_active Expired
- 1982-02-26 DE DE8282101462T patent/DE3263226D1/de not_active Expired
- 1982-04-27 US US06/372,386 patent/US4495477A/en not_active Expired - Fee Related
- 1982-04-29 DK DK192282A patent/DK159707C/da not_active IP Right Cessation
- 1982-04-29 CA CA000401958A patent/CA1188759A/en not_active Expired
- 1982-04-29 IE IE1012/82A patent/IE53013B1/en not_active IP Right Cessation

Also Published As

Publication number	Publication date
ATE12998T1 (de)	1985-05-15
EP0064131B1 (de)	1985-04-24
EP0064131A2 (de)	1982-11-10
DE3117134A1 (de)	1982-11-18
US4495477A (en)	1985-01-22
DK159707B (da)	1990-11-19
IE821012L (en)	1982-10-30
DE3263226D1 (en)	1985-05-30
DK192282A (da)	1982-10-31
CA1188759A (en)	1985-06-11
EP0064131A3 (en)	1983-03-16
IE53013B1 (en)	1988-05-11

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Legal Events

Date	Code	Title	Description
1993-12-27	PBP	Patent lapsed