FI103000B1 - Menetelmä, jolla säädetään kynnysdekooderia monitasoisen signaalin tapauksessa, ja televisiovastaanotin, jossa on tällainen dekooderi - Google Patents

Menetelmä, jolla säädetään kynnysdekooderia monitasoisen signaalin tapauksessa, ja televisiovastaanotin, jossa on tällainen dekooderi

Info

Publication number
FI103000B1
FI103000B1 FI912891A FI912891A FI103000B1 FI 103000 B1 FI103000 B1 FI 103000B1 FI 912891 A FI912891 A FI 912891A FI 912891 A FI912891 A FI 912891A FI 103000 B1 FI103000 B1 FI 103000B1
Authority
FI
Finland
Prior art keywords
decoder
adjusting
case
level signal
television receiver
Prior art date
Application number
FI912891A
Other languages
English (en)
Swedish (sv)
Other versions
FI912891A0 (fi
FI103000B (fi
FI912891A (fi
Inventor
Philippe Lafon
Original Assignee
Koninkl 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 Koninkl Philips Electronics Nv filed Critical Koninkl Philips Electronics Nv
Publication of FI912891A0 publication Critical patent/FI912891A0/fi
Publication of FI912891A publication Critical patent/FI912891A/fi
Application granted granted Critical
Publication of FI103000B publication Critical patent/FI103000B/fi
Publication of FI103000B1 publication Critical patent/FI103000B1/fi

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)
FI912891A 1990-06-19 1991-06-14 Menetelmä, jolla säädetään kynnysdekooderia monitasoisen signaalin tapauksessa, ja televisiovastaanotin, jossa on tällainen dekooderi FI103000B1 (fi)

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 (4)

Publication Number Publication Date
FI912891A0 FI912891A0 (fi) 1991-06-14
FI912891A FI912891A (fi) 1991-12-20
FI103000B FI103000B (fi) 1999-03-31
FI103000B1 true FI103000B1 (fi) 1999-03-31

Family

ID=9397775

Family Applications (1)

Application Number Title Priority Date Filing Date
FI912891A FI103000B1 (fi) 1990-06-19 1991-06-14 Menetelmä, jolla säädetään kynnysdekooderia monitasoisen signaalin tapauksessa, ja televisiovastaanotin, jossa on tällainen dekooderi

Country Status (6)

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

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
FI912891A (fi) 1991-12-20
EP0462654A1 (fr) 1991-12-27
DE69114918D1 (de) 1996-01-11
DE69114918T2 (de) 1996-06-27
EP0462654B1 (fr) 1995-11-29
JPH04233386A (ja) 1992-08-21

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Legal Events

Date Code Title Description
HC Name/ company changed in application

Owner name: KONINKLIJKE PHILIPS ELECTRONICS N.V.

HC Name/ company changed in application

Owner name: KONINKLIJKE PHILIPS ELECTRONICS N.V.

PC Transfer of assignment of patent

Owner name: NXP B.V.

Free format text: NXP B.V.

MA Patent expired