CA1212437A - Systeme de transmission de donnees avec codage des donnees a correction des erreurs - Google Patents

Systeme de transmission de donnees avec codage des donnees a correction des erreurs

Info

Publication number
CA1212437A
CA1212437A CA000441396A CA441396A CA1212437A CA 1212437 A CA1212437 A CA 1212437A CA 000441396 A CA000441396 A CA 000441396A CA 441396 A CA441396 A CA 441396A CA 1212437 A CA1212437 A CA 1212437A
Authority
CA
Canada
Prior art keywords
encoding
output
bit
correcting
error
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
CA000441396A
Other languages
English (en)
Inventor
Alan W. Entenman
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
Application granted granted Critical
Publication of CA1212437A publication Critical patent/CA1212437A/fr
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)
CA000441396A 1983-03-04 1983-11-17 Systeme de transmission de donnees avec codage des donnees a correction des erreurs Expired CA1212437A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US47223483A 1983-03-04 1983-03-04
US472,234 1983-03-04

Publications (1)

Publication Number Publication Date
CA1212437A true CA1212437A (fr) 1986-10-07

Family

ID=23874683

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000441396A Expired CA1212437A (fr) 1983-03-04 1983-11-17 Systeme de transmission de donnees avec codage des donnees a correction des erreurs

Country Status (2)

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

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2607987B1 (fr) * 1986-12-05 1989-02-10 Thomson Csf Procede et dispositif de modulation et de demodulation a plusieurs etats, a niveau de protection ajustable
FR2616986B1 (fr) * 1987-06-17 1989-10-27 Matra Dispositif de decodage par syndromes de messages en code convolutionnel
JP2586169B2 (ja) * 1990-03-06 1997-02-26 日本電気株式会社 復調システム

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 (de) * 1972-10-13 1975-04-03 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Verfahren und Schaltungsanordnung zur gesicherten Datenübertragung
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
FR2270640B1 (fr) * 1974-02-19 1976-10-08 Cii
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 (fr) * 1979-04-27 1987-05-29 Cit Alcatel Procede de compensation des bruits de phase a la reception d'une transmission de donnees
DE3134831A1 (de) * 1981-09-03 1983-03-10 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt System zur uebertragung digitaler informationssignale

Also Published As

Publication number Publication date
GB2137456B (en) 1987-04-08
GB8332200D0 (en) 1984-01-11
GB2137456A (en) 1984-10-03

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Legal Events

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