CA929613A - Electrical modulating systems - Google Patents

Electrical modulating systems

Info

Publication number
CA929613A
CA929613A CA099807A CA99807A CA929613A CA 929613 A CA929613 A CA 929613A CA 099807 A CA099807 A CA 099807A CA 99807 A CA99807 A CA 99807A CA 929613 A CA929613 A CA 929613A
Authority
CA
Canada
Prior art keywords
modulating systems
electrical modulating
electrical
systems
modulating
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
Application number
CA099807A
Other languages
English (en)
Inventor
W. Guest Ashley
Thompson Raymond
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.)
Plessey Co Ltd
Original Assignee
Plessey Co Ltd
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 Plessey Co Ltd filed Critical Plessey Co Ltd
Application granted granted Critical
Publication of CA929613A publication Critical patent/CA929613A/en
Expired 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
    • H04L27/2003—Modulator circuits; Transmitter circuits for continuous phase modulation
    • H04L27/2021—Modulator circuits; Transmitter circuits for continuous phase modulation in which the phase change per symbol period is not constrained
    • H04L27/2025—Modulator circuits; Transmitter circuits for continuous phase modulation in which the phase change per symbol period is not constrained in which the phase changes in a piecewise linear manner within each symbol period

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
CA099807A 1969-12-09 1970-12-04 Electrical modulating systems Expired CA929613A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5991169 1969-12-09

Publications (1)

Publication Number Publication Date
CA929613A true CA929613A (en) 1973-07-03

Family

ID=10484637

Family Applications (1)

Application Number Title Priority Date Filing Date
CA099807A Expired CA929613A (en) 1969-12-09 1970-12-04 Electrical modulating systems

Country Status (3)

Country Link
US (1) US3699479A (ko)
CA (1) CA929613A (ko)
GB (1) GB1304188A (ko)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3818378A (en) * 1972-02-10 1974-06-18 Us Navy Phase derivative modulation method and apparatus
US3750051A (en) * 1972-04-12 1973-07-31 Bell Telephone Labor Inc Multi-level modulator for coherent phase-shift keyed signal generation
US3909750A (en) * 1974-06-10 1975-09-30 Bell Telephone Labor Inc Apparatus for encoding a binary signal into a frequency modulated coherent phase-shift keyed signal
US4242661A (en) * 1975-03-27 1980-12-30 Stifelsen Institutet for Mikrovagsteknik Vid Tekniska Hogskolan i Stockholm Device for registration of objects
US4290140A (en) * 1978-02-23 1981-09-15 Northrop Corporation Combined coherent frequency and phase shift keying modulation system
SE413359B (sv) * 1978-08-25 1980-05-19 Stiftelsen Inst Mikrovags Anordning for astadkommande av ett enkelt sidband
US4311971A (en) * 1979-09-19 1982-01-19 Hazeltine Corporation Apparatus for generating constant-envelope, angle-modulated pulse signals
FR2477801A1 (fr) * 1980-03-05 1981-09-11 Thomson Csf Procede de modulation de phase par un signal binaire et dispositif mettant en oeuvre ce procede
US4528526A (en) * 1983-05-31 1985-07-09 Motorola, Inc. PSK modulator with noncollapsable output for use with a PLL power amplifier
US4540958A (en) * 1983-09-30 1985-09-10 International Telephone And Telegraph Corporation Zero if frequency-modulator
US4562415A (en) * 1984-06-22 1985-12-31 Motorola, Inc. Universal ultra-precision PSK modulator with time multiplexed modes of varying modulation types
KR930005646B1 (ko) * 1990-10-08 1993-06-23 삼성전자 주식회사 평탄한 엔벨로프 특성을 갖는 bpsk 변조회로
US5809268A (en) * 1995-06-29 1998-09-15 International Business Machines Corporation Method and system for tracking resource allocation within a processor
DE10214188B4 (de) * 2002-03-28 2005-08-25 Siemens Ag Verfahren zur gesicherten Übertragung von Daten, insbesondere zur Übertragung über eine Luftschnittstelle

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2635226A (en) * 1950-01-20 1953-04-14 Collins Radio Co Phase modulation system and apparatus
US3242262A (en) * 1961-09-21 1966-03-22 Ibm Method and apparatus for transmitting binary data
US3341776A (en) * 1964-01-13 1967-09-12 Collins Radio Co Error sensitive binary transmission system wherein four channels are transmitted via one carrier wave
GB1172974A (en) * 1965-11-23 1969-12-03 Plessey Co Ltd Improvements in or relating to Modulation Systems
US3517297A (en) * 1968-10-14 1970-06-23 Collins Radio Co Multi-output dc power supply means

Also Published As

Publication number Publication date
US3699479A (en) 1972-10-17
GB1304188A (ko) 1973-01-24

Similar Documents

Publication Publication Date Title
CA929613A (en) Electrical modulating systems
CA927453A (en) Electrical cutout
CA928388A (en) Electrical distribution system
CA954693A (en) Audio-sensitive devices
CA926512A (en) Telecommunications system
CA937663A (en) Telecommunication systems
AU1120570A (en) Electrical control systems
CA935531A (en) Modulation system
AU1535970A (en) Electrical connection
AU1315070A (en) Electrical switching system
CA828347A (en) Electrical signalling systems
CA822850A (en) Electrical communications systems
CA824309A (en) Electrical display systems
CA946042A (en) Electrical control system
CA821062A (en) Electrical control system
CA827771A (en) Lighting-control systems
CA830589A (en) Electrogasdynamic systems
CA827770A (en) Lighting-control systems
CA826236A (en) Electrogasdynamic systems
CA811323A (en) Radiolocating systems
CA807819A (en) Electrical distribution system
CA845335A (en) Electrical distribution systems
AU435889B2 (en) Ampllitude modulator
CA812397A (en) Combination electrical control
CA804178A (en) Electrical wiring systems