DE69114918D1 - Verfahren zur Regelung eines Pegeldekodierers für mehrstufige Signale und Fernsehempfänger mit einem solchen Dekodierer. - Google Patents

Verfahren zur Regelung eines Pegeldekodierers für mehrstufige Signale und Fernsehempfänger mit einem solchen Dekodierer.

Info

Publication number
DE69114918D1
DE69114918D1 DE69114918T DE69114918T DE69114918D1 DE 69114918 D1 DE69114918 D1 DE 69114918D1 DE 69114918 T DE69114918 T DE 69114918T DE 69114918 T DE69114918 T DE 69114918T DE 69114918 D1 DE69114918 D1 DE 69114918D1
Authority
DE
Germany
Prior art keywords
decoder
controlling
television receivers
stage signals
level
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
DE69114918T
Other languages
English (en)
Other versions
DE69114918T2 (de
Inventor
Philippe Lafon
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.)
Trident Microsystems Far East Ltd Cayman Islands
Original Assignee
Philips Electronics NV
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 Philips Electronics NV filed Critical Philips Electronics NV
Publication of DE69114918D1 publication Critical patent/DE69114918D1/de
Application granted granted Critical
Publication of DE69114918T2 publication Critical patent/DE69114918T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
    • H04N7/083—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical and the horizontal blanking interval, e.g. MAC data signals
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/06—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection
    • H04L25/061—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection providing hard decisions only; arrangements for tracking or suppressing unwanted low frequency components, e.g. removal of dc offset
    • H04L25/063—Setting decision thresholds using feedback techniques only
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/06—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection
    • H04L25/061—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection providing hard decisions only; arrangements for tracking or suppressing unwanted low frequency components, e.g. removal of dc offset
    • H04L25/066—Multilevel decisions, not including self-organising maps
    • 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
    • H04L25/4917—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 using multilevel codes
    • H04L25/4923—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 using multilevel codes using ternary codes

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Dc Digital Transmission (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Television Systems (AREA)
DE69114918T 1990-06-19 1991-06-13 Verfahren zur Regelung eines Pegeldekodierers für mehrstufige Signale und Fernsehempfänger mit einem solchen Dekodierer. Expired - Lifetime DE69114918T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9007649A FR2663483A1 (fr) 1990-06-19 1990-06-19 Procede de reglage d'un decodeur a seuil pour un signal a plusieurs niveaux et recepteur de television muni d'un tel decodeur.

Publications (2)

Publication Number Publication Date
DE69114918D1 true DE69114918D1 (de) 1996-01-11
DE69114918T2 DE69114918T2 (de) 1996-06-27

Family

ID=9397775

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69114918T Expired - Lifetime DE69114918T2 (de) 1990-06-19 1991-06-13 Verfahren zur Regelung eines Pegeldekodierers für mehrstufige Signale und Fernsehempfänger mit einem solchen Dekodierer.

Country Status (6)

Country Link
US (1) US5274674A (de)
EP (1) EP0462654B1 (de)
JP (1) JP3202037B2 (de)
DE (1) DE69114918T2 (de)
FI (1) FI103000B1 (de)
FR (1) FR2663483A1 (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2699355B1 (fr) * 1992-12-15 1995-02-17 Matra Communication Procédé de constitution de multiplex numérique et dispositif de mis en Óoeuvre dudit procédé.
JP3689986B2 (ja) * 1996-06-28 2005-08-31 ソニー株式会社 デジタル衛星放送受信機及びそのアンテナレベル表示方法
US6002723A (en) * 1997-08-15 1999-12-14 Lockheed Martin Corporation Digital receiver having programmable complex threshold detectors and threshold interpreters
US6307899B1 (en) 1998-06-16 2001-10-23 Ameritech Corporation Method and system for optimizing coding gain
GB9821385D0 (en) * 1998-10-01 1998-11-25 British Broadcasting Corp Improvements relating to measuring channel state from a received signal and discriminating digital values from a received signal,suitable for use in cofdm
US6525775B1 (en) * 1998-10-09 2003-02-25 Matsushita Electric Industrial Co., Ltd. Method for updating software in a digital television receiver using recorded data
JP4019555B2 (ja) * 1999-05-25 2007-12-12 Ｋｄｄｉ株式会社 光受信装置及び方法
US6636991B1 (en) * 1999-12-23 2003-10-21 Intel Corporation Flexible method for satisfying complex system error handling requirements via error promotion/demotion
GB2371187A (en) * 2001-01-15 2002-07-17 Marconi Comm Ltd Signal slicing circuit with variable threshold levels
JP2006270278A (ja) * 2005-03-23 2006-10-05 Nec Engineering Ltd バイポーラ／ユニポーラ変換回路
CN102754349B (zh) * 2010-02-19 2014-11-19 古河电气工业株式会社 脉冲接收机和脉冲串信号的接收方法
KR102623271B1 (ko) * 2021-10-05 2024-01-09 주쌍돈 휴대용 파워뱅크장치

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1041378B (it) * 1975-06-10 1980-01-10 Cselt Centro Studi Lab Telecom Dispositivo per il rilevamento della qualita di trasmissione nei ricevitori di segnali numerici
US4479255A (en) * 1978-05-12 1984-10-23 Electronique Marcel Dassault Apparatus for acquiring and collecting radio signals coming from a plurality of stations
JPS60249447A (ja) * 1984-05-25 1985-12-10 Kokusai Denshin Denwa Co Ltd <Kdd> 軟判定復調方式
US4625240A (en) * 1984-07-25 1986-11-25 Eeco, Inc. Adaptive automatic gain control
GB8521019D0 (en) * 1985-08-22 1986-10-01 Rank Pullin Controls Ltd Imaging apparatus

Also Published As

Publication number Publication date
US5274674A (en) 1993-12-28
FR2663483A1 (fr) 1991-12-20
JP3202037B2 (ja) 2001-08-27
FI912891A0 (fi) 1991-06-14
FI103000B (fi) 1999-03-31
FI103000B1 (fi) 1999-03-31
FI912891A (fi) 1991-12-20
EP0462654A1 (de) 1991-12-27
DE69114918T2 (de) 1996-06-27
EP0462654B1 (de) 1995-11-29
JPH04233386A (ja) 1992-08-21

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: KONINKLIJKE PHILIPS ELECTRONICS N.V., EINDHOVEN, N

8327 Change in the person/name/address of the patent owner

Owner name: NXP B.V., EINDHOVEN, NL

8328 Change in the person/name/address of the agent

Representative=s name: EISENFUEHR, SPEISER & PARTNER, 10178 BERLIN

8327 Change in the person/name/address of the patent owner

Owner name: TRIDENT MICROSYSTEMS (FAR EAST) LTD., GRAND CA, KY