GB8332200D0 - Data transmission system - Google Patents

Data transmission system

Info

Publication number
GB8332200D0
GB8332200D0 GB838332200A GB8332200A GB8332200D0 GB 8332200 D0 GB8332200 D0 GB 8332200D0 GB 838332200 A GB838332200 A GB 838332200A GB 8332200 A GB8332200 A GB 8332200A GB 8332200 D0 GB8332200 D0 GB 8332200D0
Authority
GB
United Kingdom
Prior art keywords
data transmission
transmission system
data
transmission
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.)
Granted
Application number
GB838332200A
Other versions
GB2137456B (en
GB2137456A (en
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.)
Radyne Corp
Original Assignee
Radyne 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 Radyne Corp filed Critical Radyne Corp
Publication of GB8332200D0 publication Critical patent/GB8332200D0/en
Publication of GB2137456A publication Critical patent/GB2137456A/en
Application granted granted Critical
Publication of GB2137456B publication Critical patent/GB2137456B/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
    • H04L27/22—Demodulator circuits; Receiver circuits
    • H04L27/227—Demodulator circuits; Receiver circuits using coherent demodulation
    • H04L27/2275—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses the received modulated signals
    • 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
    • H04L27/186—Phase-modulated carrier systems, i.e. using phase-shift keying in which the information is carried by both the individual signal points and the subset to which the individual signal points belong, e.g. coset coding or related schemes
    • 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
    • H04L27/2067—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 with more than two phase states
    • H04L27/2071—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 with more than two phase states in which the data are represented by the carrier phase, e.g. systems with differential coding

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Error Detection And Correction (AREA)
GB08332200A 1983-03-04 1983-12-02 Carrier data transmission system with error correcting data encoding Expired GB2137456B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US47223483A 1983-03-04 1983-03-04

Publications (3)

Publication Number Publication Date
GB8332200D0 true GB8332200D0 (en) 1984-01-11
GB2137456A GB2137456A (en) 1984-10-03
GB2137456B GB2137456B (en) 1987-04-08

Family

ID=23874683

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08332200A Expired GB2137456B (en) 1983-03-04 1983-12-02 Carrier data transmission system with error correcting data encoding

Country Status (2)

Country Link
CA (1) CA1212437A (en)
GB (1) GB2137456B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2607987B1 (en) * 1986-12-05 1989-02-10 Thomson Csf MULTI-STATE MODULATION AND DEMODULATION METHOD AND DEVICE WITH ADJUSTABLE PROTECTION LEVEL
FR2616986B1 (en) * 1987-06-17 1989-10-27 Matra SYNDROME DECODING DEVICE OF MESSAGES IN CONVOLUTIONAL CODE
JP2586169B2 (en) * 1990-03-06 1997-02-26 日本電気株式会社 Demodulation system

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3665396A (en) * 1968-10-11 1972-05-23 Codex Corp Sequential decoding
DE2250306C3 (en) * 1972-10-13 1975-04-03 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Method and circuit arrangement for secure data transmission
US3872430A (en) * 1973-11-23 1975-03-18 Paul Emile Boudreau Method and apparatus of error detection for variable length words using a polynomial code
ES434863A1 (en) * 1974-02-19 1976-10-16 Cii Error syndrome and correction code forming devices
US4035767A (en) * 1976-03-01 1977-07-12 Ibm Corporation Error correction code and apparatus for the correction of differentially encoded quadrature phase shift keyed data (DQPSK)
JPS54118748A (en) * 1978-03-07 1979-09-14 Ibm Error channel correcting device
FR2455406B1 (en) * 1979-04-27 1987-05-29 Cit Alcatel METHOD FOR COMPENSATING FOR PHASE NOISE ON RECEPTION OF DATA TRANSMISSION
DE3134831A1 (en) * 1981-09-03 1983-03-10 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt SYSTEM FOR TRANSMITTING DIGITAL INFORMATION SIGNALS

Also Published As

Publication number Publication date
CA1212437A (en) 1986-10-07
GB2137456B (en) 1987-04-08
GB2137456A (en) 1984-10-03

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee