MX9305651A - Aparato controlador de excitacion para un seccionador de datos en un descodificador de informacion de video auxiliar. - Google Patents

Aparato controlador de excitacion para un seccionador de datos en un descodificador de informacion de video auxiliar.

Info

Publication number
MX9305651A
MX9305651A MX9305651A MX9305651A MX9305651A MX 9305651 A MX9305651 A MX 9305651A MX 9305651 A MX9305651 A MX 9305651A MX 9305651 A MX9305651 A MX 9305651A MX 9305651 A MX9305651 A MX 9305651A
Authority
MX
Mexico
Prior art keywords
level
disconnector
sectioning
video information
data
Prior art date
Application number
MX9305651A
Other languages
English (en)
Inventor
Juri Nmn Tults
Original Assignee
Thomsom Consumer Electrinics I
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 Thomsom Consumer Electrinics I filed Critical Thomsom Consumer Electrinics I
Publication of MX9305651A publication Critical patent/MX9305651A/es

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
    • H04N7/087—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 blanking interval only
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/025—Systems for the transmission of digital non-picture data, e.g. of text during the active part of a television frame
    • H04N7/035—Circuits for the digital non-picture data signal, e.g. for slicing of the data signal, for regeneration of the data-clock signal, for error detection or correction of the data signal
    • H04N7/0355—Circuits for the digital non-picture data signal, e.g. for slicing of the data signal, for regeneration of the data-clock signal, for error detection or correction of the data signal for discrimination of the binary level of the digital data, e.g. amplitude slicers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/16—Circuitry for reinsertion of dc and slowly varying components of signal; Circuitry for preservation of black or white level
    • H04N5/18—Circuitry for reinsertion of dc and slowly varying components of signal; Circuitry for preservation of black or white level by means of "clamp" circuit operated by switching circuit

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Systems (AREA)
  • Picture Signal Circuits (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Television Signal Processing For Recording (AREA)

Abstract

Un descodificador de información de video auxiliar, por extraer una señal de información de video auxiliar desde una señal de video, incluye un seccionador de datos (230) y un aparato (200, 220, 250,), para ajustar el nivel de seccionamiento del seccionador de datos. El nivel de seccionamiento se ajusta rápidamente hasta que se detecte un componente de referencia de la señal de información auxilia, durante un intervalo de exhibición de la señal de video, en el cual se espera que ocurra la información de video auxiliar. Se incrementa una cuenta después de los intervalos de exhibición en los que se detecta el componente de interferencia, y se decrementa después de los intervalos de exhibición en los cuales no se detecta el componente de referencia. El ajuste de nivel de seccionamiento cesa cuando la cuenta está en un número predeterminado. El aparato se adapta rápidamente a nivel de seccionamiento, a los cambios en la amplitud de señal de video de largo plazo, de magnitud significativa (por ejemplo), después de un cambio de canal), y mantiene un nivel de sección constante cuando ocurren variaciones transitorias en la amplitud de la cañal de video.
MX9305651A 1992-09-15 1993-09-14 Aparato controlador de excitacion para un seccionador de datos en un descodificador de informacion de video auxiliar. MX9305651A (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB929219505A GB9219505D0 (en) 1992-09-15 1992-09-15 Bias control apparatus for a data slicer in an auxiliary video information decoder

Publications (1)

Publication Number Publication Date
MX9305651A true MX9305651A (es) 1994-06-30

Family

ID=10721941

Family Applications (1)

Application Number Title Priority Date Filing Date
MX9305651A MX9305651A (es) 1992-09-15 1993-09-14 Aparato controlador de excitacion para un seccionador de datos en un descodificador de informacion de video auxiliar.

Country Status (12)

Country Link
EP (1) EP0660989B1 (es)
JP (1) JP3289107B2 (es)
KR (1) KR100341997B1 (es)
CN (1) CN1041484C (es)
CA (1) CA2143199C (es)
DE (1) DE69316226T2 (es)
ES (1) ES2111171T3 (es)
GB (1) GB9219505D0 (es)
MX (1) MX9305651A (es)
MY (1) MY110360A (es)
SG (1) SG94679A1 (es)
WO (1) WO1994007334A1 (es)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR0164563B1 (ko) * 1993-07-23 1999-03-20 김광호 데이타 분리 회로
US5748263A (en) * 1995-03-07 1998-05-05 Ball; Bradley E. System for automatically producing infrared control signals
US5900913A (en) * 1995-09-26 1999-05-04 Thomson Consumer Electronics, Inc. System providing standby operation of an auxiliary data decoder in a television receiver
CA2188707C (en) 1995-11-13 2000-08-01 Aaron Hal Dinwiddie System providing freeze of closed captioning data
TW346593B (en) * 1996-09-11 1998-12-01 Matsushita Electric Ind Co Ltd Data display control apparatus, a data transmission apparatus, and a data display control information editing apparatus
JPH11199864A (ja) 1997-10-10 1999-07-27 Koto Gijutsu Kenkyuin Kenkyu Kumiai 電気発光素子の製造方法
JP3788253B2 (ja) 2001-03-12 2006-06-21 ソニー株式会社 データスライス回路
US7688356B2 (en) 2004-05-07 2010-03-30 Nikon Corporation Clamp level adjusting apparatus, electronic camera, image processing apparatus, and image processing program
CN105791864B (zh) 2007-05-16 2019-01-15 汤姆逊许可Dtv公司 编码及传送多视图视频编码信息中使用码片组的装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0144457B1 (de) * 1983-12-07 1987-11-11 Deutsche ITT Industries GmbH Daten-Slicer-Schaltung zur Abtrennung und Wiedergewinnung von digitalen Teletextsignalen
US4620227A (en) * 1984-01-30 1986-10-28 Cybernetic Data Products Data decoder
JPS6143886A (ja) * 1984-08-08 1986-03-03 Hitachi Ltd デ−タ識別回路
FR2652697A1 (fr) * 1989-10-03 1991-04-05 Sgs Thomson Microelectronics Extracteur de donnees numeriques dans un signal video.

Also Published As

Publication number Publication date
JPH08501423A (ja) 1996-02-13
CN1086067A (zh) 1994-04-27
SG94679A1 (en) 2003-03-18
JP3289107B2 (ja) 2002-06-04
GB9219505D0 (en) 1992-10-28
ES2111171T3 (es) 1998-03-01
WO1994007334A1 (en) 1994-03-31
KR100341997B1 (ko) 2003-02-17
EP0660989B1 (en) 1998-01-07
KR950703836A (ko) 1995-09-20
CN1041484C (zh) 1998-12-30
DE69316226D1 (de) 1998-02-12
DE69316226T2 (de) 1998-04-16
CA2143199A1 (en) 1994-03-31
MY110360A (en) 1998-04-30
EP0660989A1 (en) 1995-07-05
CA2143199C (en) 1999-07-06

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Legal Events

Date Code Title Description
FG Grant or registration
MM Annulment or lapse due to non-payment of fees