FR2611332B1 - Appareil de codage et decodeur pour systemes de transmission a canal a reponse partielle - Google Patents

Appareil de codage et decodeur pour systemes de transmission a canal a reponse partielle

Info

Publication number
FR2611332B1
FR2611332B1 FR8802253A FR8802253A FR2611332B1 FR 2611332 B1 FR2611332 B1 FR 2611332B1 FR 8802253 A FR8802253 A FR 8802253A FR 8802253 A FR8802253 A FR 8802253A FR 2611332 B1 FR2611332 B1 FR 2611332B1
Authority
FR
France
Prior art keywords
decoder
encoding apparatus
channel transmission
transmission systems
partial response
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 - Lifetime
Application number
FR8802253A
Other languages
English (en)
French (fr)
Other versions
FR2611332A1 (fr
Inventor
G David Forney Jr
Vedat M Eyuboglu
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.)
Motorola Solutions Inc
Original Assignee
Codex 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 Codex Corp filed Critical Codex Corp
Publication of FR2611332A1 publication Critical patent/FR2611332A1/fr
Application granted granted Critical
Publication of FR2611332B1 publication Critical patent/FR2611332B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H04L27/32—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
    • H04L27/3416—Modifications of the signal space to increase the efficiency of transmission, e.g. reduction of the bit error rate, bandwidth, or average power in which the information is carried by both the individual signal points and the subset to which the individual points belong, e.g. using coset coding, lattice coding, or related schemes
    • H04L27/3427—Modifications of the signal space to increase the efficiency of transmission, e.g. reduction of the bit error rate, bandwidth, or average power in which the information is carried by both the individual signal points and the subset to which the individual points belong, e.g. using coset coding, lattice coding, or related schemes in which the constellation is the n - fold Cartesian product of a single underlying two-dimensional constellation
    • H04L27/3438—Modifications of the signal space to increase the efficiency of transmission, e.g. reduction of the bit error rate, bandwidth, or average power in which the information is carried by both the individual signal points and the subset to which the individual points belong, e.g. using coset coding, lattice coding, or related schemes in which the constellation is the n - fold Cartesian product of a single underlying two-dimensional constellation using an underlying generalised cross constellation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
    • H04L25/40—Transmitting circuits; Receiving circuits
    • H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
    • H04L25/497—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems by correlative coding, e.g. partial response coding or echo modulation coding transmitters and receivers for partial response systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
FR8802253A 1987-02-24 1988-02-24 Appareil de codage et decodeur pour systemes de transmission a canal a reponse partielle Expired - Lifetime FR2611332B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1834587A 1987-02-24 1987-02-24

Publications (2)

Publication Number Publication Date
FR2611332A1 FR2611332A1 (fr) 1988-08-26
FR2611332B1 true FR2611332B1 (fr) 1992-09-11

Family

ID=21787463

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8802253A Expired - Lifetime FR2611332B1 (fr) 1987-02-24 1988-02-24 Appareil de codage et decodeur pour systemes de transmission a canal a reponse partielle

Country Status (9)

Country Link
JP (1) JPH06103895B2 (de)
AU (1) AU621536B2 (de)
CA (1) CA1306543C (de)
DE (1) DE3805582C2 (de)
FR (1) FR2611332B1 (de)
GB (1) GB2201567B (de)
HK (1) HK41592A (de)
NL (1) NL8800474A (de)
SG (1) SG37292G (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2012914C (en) * 1989-05-12 1999-05-04 Vedat M. Eyuboglu Trellis precoding for modulation systems
CA2014867A1 (en) * 1989-05-12 1990-11-12 G. David Forney, Jr. Generalized partial response channel signaling systems
CH685525A5 (de) * 1990-03-12 1995-07-31 Ascom Radiocom Ag Verfahren zur trelliscodierten Modulation.
US5164963A (en) * 1990-11-07 1992-11-17 At&T Bell Laboratories Coding for digital transmission
DE4201439A1 (de) * 1992-01-21 1993-07-22 Daimler Benz Ag Verfahren und anordnung zur uebertragung hoher datenraten fuer den digitalen rundfunk
FR2740286B1 (fr) * 1995-10-23 1998-01-02 Inst Eurecom Dispositif et procede de communication hybride numerique- analogique sur un canal telephonique

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1250924A (de) * 1969-06-25 1971-10-27
CH609510A5 (de) * 1976-06-18 1979-02-28 Ibm
DE2836445C2 (de) * 1978-08-19 1979-11-15 Te Ka De Felten & Guilleaume Fernmeldeanlagen Gmbh, 8500 Nuernberg Schaltungsanordnung zur Fehlererkennung in Digitalsignalen
GB2118006B (en) * 1982-03-19 1985-09-04 Gen Electric Co Plc Transmission systems
EP0178077B1 (de) * 1984-10-02 1989-11-15 Kabushiki Kaisha Toshiba Optischer Kopf zur Aufzeichnung und Wiedergabe von Daten von einem Aufzeichnungsmedium
NL8403366A (nl) * 1984-11-06 1986-06-02 Philips Nv Inrichting voor het bewaken van een cmi-codeomvormer.
NL8601603A (nl) * 1986-06-20 1988-01-18 Philips Nv Kanaalcoderingsinrichting.

Also Published As

Publication number Publication date
FR2611332A1 (fr) 1988-08-26
NL8800474A (nl) 1988-09-16
AU621536B2 (en) 1992-03-19
CA1306543C (en) 1992-08-18
DE3805582A1 (de) 1988-09-01
GB8804283D0 (en) 1988-03-23
SG37292G (en) 1992-05-22
JPH06103895B2 (ja) 1994-12-14
AU1204088A (en) 1988-09-08
GB2201567A (en) 1988-09-01
GB2201567B (en) 1991-09-25
HK41592A (en) 1992-06-19
JPS63240154A (ja) 1988-10-05
DE3805582C2 (de) 2001-04-12

Similar Documents

Publication Publication Date Title
BR8102972A (pt) Dispositivo para a codificacao de sinais de video e de audio
DE3271501D1 (en) Optical device including birefringent polymer
JPS5726825A (en) Acoustic optical device
DE3278090D1 (en) Optical recording device
JPS5779908A (en) Optical transmission apparatus
ES525158A0 (es) "perfeccionamientos introducidos en un aparato empleado en el canal de tratamiento de senales de crominancia de un receptor de television"
GB8405303D0 (en) Optical waveguide transducer device
JPS57155788A (en) Optical device
GB2096341B (en) Optical switch device
GB2099937B (en) Transmission control device
GB2108392B (en) Massaging element for mechanical massaging device
GB8402807D0 (en) Optical device
GB2105863B (en) Optical waveguiding devices
JPS57212889A (en) Video projecting device
FR2611332B1 (fr) Appareil de codage et decodeur pour systemes de transmission a canal a reponse partielle
GB8408037D0 (en) Signal transmission device
IT8222152A0 (it) Dispositivo per la trasmissione disegnali.
JPS5720717A (en) Acoustic optical device
JPS5797283A (en) Signal transmitting method and device used therefor
JPS57142047A (en) Signal multiplexing method and device
GB2112992B (en) Sound reproducing device
ES534286A0 (es) Perfeccionamientos introducidos en un dispositivo de tratamiento de senales de video
GB8327545D0 (en) Optical transducer apparatus
JPS57155530A (en) Optical apparatus
DE3175932D1 (en) Optical coupling device

Legal Events

Date Code Title Description
TP Transmission of property