ES2090057T5 - Detector de señal de sincronizacion vertical. - Google Patents

Detector de señal de sincronizacion vertical.

Info

Publication number
ES2090057T5
ES2090057T5 ES90107175T ES90107175T ES2090057T5 ES 2090057 T5 ES2090057 T5 ES 2090057T5 ES 90107175 T ES90107175 T ES 90107175T ES 90107175 T ES90107175 T ES 90107175T ES 2090057 T5 ES2090057 T5 ES 2090057T5
Authority
ES
Spain
Prior art keywords
counter
numerical
comparator
output
vertical sync
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
ES90107175T
Other languages
English (en)
Other versions
ES2090057T3 (es
Inventor
Russell Thomas Fling
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.)
Technicolor USA Inc
Original Assignee
Thomson Consumer Electronics Inc
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=23334363&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES2090057(T5) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Thomson Consumer Electronics Inc filed Critical Thomson Consumer Electronics Inc
Application granted granted Critical
Publication of ES2090057T3 publication Critical patent/ES2090057T3/es
Publication of ES2090057T5 publication Critical patent/ES2090057T5/es
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
    • H04N7/087—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
    • H04N5/00—Details of television systems
    • H04N5/04—Synchronising
    • H04N5/08—Separation of synchronising signals from picture signals
    • H04N5/10—Separation of line synchronising signal from frame synchronising signal or vice versa

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Synchronizing For Television (AREA)
  • Burglar Alarm Systems (AREA)
  • Details Of Television Scanning (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Selective Calling Equipment (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Television Signal Processing For Recording (AREA)

Abstract

UN DETECTOR (10) PARA IMPULSOS DE SINCRONIZACION VERTICAL COMPRENDE UN CONTADOR ASCENDENTE Y DESCENDENTE SIN ENVOLTURA (14) Y UN COMPARADOR (18). EL CONTADOR (14) MUESTREA EL NIVEL DE UNA SEÑAL DE SINCRONIZACION COMPUESTA A UNA CADENCIA DE MUESTREO. EL CONTADOR (14) TIENE UNA SALIDA NUMERICA QUE INCREMENTA LA RESPUESTA A LA DETECCION DE DICHO NIVEL DURANTE UN INTERVALO DE MUESTREO Y DISMINUYA LA RESPUESTA A LA NO DETECCION DE DICHO NIVEL DURANTE UN INTERVALO DE MUESTREO. EL COMPARADOR (18) GENERA UN IMPULSO DE DETECCION VERTICAL CUANDO LA SALIDA NUMERICA DEL CONTADOR (14) ES MAYOR QUE UN VALOR DE REFERENCIA. AL OBJETO DE FACILITAR LA HISTERESIS, EL VALOR NUMERICO ES ALTERNATIVAMENTE UNA DE LAS PRIMERAS Y SEGUNDAS CUENTAS DE REFERENCIA NUMERICA, SIENDO LA PRIMERA CUENTA DE REFERENCIA MAYOR QUE LA SEGUNDA CUENTA DE REFERENCIA. EL COMPARADOR (18) INICIA EL IMPULSO DE DETECCION DE SINCRONIZACION VERTICAL CUANDO LA SALIDA NUMERICA DEL CONTADOR (14) SE ELEVA SOBRE LA PRIMERA CUENTA DE REFERENCIAY TERMINA EL IMPULSO DE DETECCION DE SINCRONIZACION VERTICAL CUANDO LA SALIDA NUMERICA DEL CONTADOR (14) CAE POR DEBAJO DE LA SEGUNDA CUENTA DE REFERENCIA. LA REFERENCIA NUMERICA FACILITADA AL COMPARADOR (18) SE CAMBIA EN LOS TIEMPOS CORRESPONDIENTES A LA INICIACION Y TERMINACION DE CADA IMPULSO DE DETECCION DE SINCRONIZACION VERTICAL. UN CIRCUITO DE CONFORMACION DE IMPULSO PUEDE COMPRENDER UN RELE (22) PARA MUESTREO DE LA SALIDA DEL COMPARADOR (18) Y GENERACION DE SEÑAL DE SINCRONIZACION VERTICAL.
ES90107175T 1989-04-20 1990-04-14 Detector de señal de sincronizacion vertical. Expired - Lifetime ES2090057T5 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/340,651 US5031041A (en) 1989-04-20 1989-04-20 Digital detector/filter for synchronizing signals

Publications (2)

Publication Number Publication Date
ES2090057T3 ES2090057T3 (es) 1996-10-16
ES2090057T5 true ES2090057T5 (es) 2000-03-01

Family

ID=23334363

Family Applications (1)

Application Number Title Priority Date Filing Date
ES90107175T Expired - Lifetime ES2090057T5 (es) 1989-04-20 1990-04-14 Detector de señal de sincronizacion vertical.

Country Status (12)

Country Link
US (1) US5031041A (es)
EP (1) EP0393558B2 (es)
JP (1) JPH02301375A (es)
KR (1) KR100236887B1 (es)
CN (1) CN1038091C (es)
AT (1) ATE142070T1 (es)
CA (1) CA2013348C (es)
DE (1) DE69028235T3 (es)
ES (1) ES2090057T5 (es)
FI (1) FI98110C (es)
SG (1) SG64304A1 (es)
TR (1) TR26225A (es)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5229854A (en) * 1991-05-17 1993-07-20 Thomson Consumer Electronics, Inc. Vertical sync separator
US5404172A (en) * 1992-03-02 1995-04-04 Eeg Enterprises, Inc. Video signal data and composite synchronization extraction circuit for on-screen display
US5367337A (en) * 1992-04-30 1994-11-22 Image Data Corporation Method and apparatus for capturing video images
FR2716765B1 (fr) * 1994-02-28 1996-05-31 Sgs Thomson Microelectronics Procédé de reconnaisance de standard vidéo, et circuit mettant en Óoeuvre ce procédé.
JP3730316B2 (ja) * 1995-06-13 2006-01-05 テキサス インスツルメンツ インコーポレイテツド トラッキングフィルターおよびフィルターを使用した信号処理の方法
JPH0969965A (ja) * 1995-08-30 1997-03-11 Sony Corp 垂直同期信号安定化回路、集積回路及びテレビジヨン信号処理装置
KR0149304B1 (ko) * 1995-10-10 1998-10-15 김광호 비디오 신호의 수직동기신호 생성장치
KR100234312B1 (ko) * 1997-01-17 1999-12-15 윤종용 고정도 동기 신호 검출방법 및 장치
US6606410B2 (en) 1997-01-17 2003-08-12 Samsung Electronics Co., Ltd. Method and apparatus for detecting a synchronous signal
JP3515775B1 (ja) * 2002-08-20 2004-04-05 沖電気工業株式会社 垂直同期検出回路
KR100510148B1 (ko) * 2003-09-20 2005-08-25 삼성전자주식회사 아날로그 영상신호 수신 시스템에서 디스플레이 동기 신호생성 장치 및 방법
KR100490635B1 (ko) 2003-10-01 2005-05-18 삼성에스디아이 주식회사 플라즈마 디스플레이 패널 및 그 구동 방법
JP2007165955A (ja) * 2005-12-09 2007-06-28 Oki Electric Ind Co Ltd 垂直同期信号生成装置
US8203651B2 (en) * 2008-11-07 2012-06-19 Stmicroelectronics Maroc Video signal synchronization
EP2765392B1 (de) * 2013-02-06 2015-09-02 Siemens Aktiengesellschaft Verfahren und Auswerteeinrichtung für eine Plausibilitätsprüfung eines Inkrementalzählers

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4025952A (en) * 1976-06-09 1977-05-24 Gte Sylvania Incorporated Vertical synchronizing circuit
JPS5350613A (en) * 1976-10-19 1978-05-09 Matsushita Electric Ind Co Ltd Synchronous signal processing circuit
JPS5399718A (en) * 1977-02-10 1978-08-31 Nec Corp Signal state detector circuit
JPS5556766A (en) * 1978-10-23 1980-04-25 Toshiba Corp Vertical synchronism detector circuit
JPS5556767A (en) * 1978-10-23 1980-04-25 Toshiba Corp Vertical synchronism detector circuit
JPS56165469A (en) * 1980-05-23 1981-12-19 Sony Corp Detecting method of vertical synchronous signal
JPS58191584A (ja) * 1982-05-01 1983-11-08 Pioneer Video Kk 映像情報の記録方式及び記録装置
JPS6074781A (ja) * 1983-09-30 1985-04-27 Hitachi Ltd 垂直同期信号分離装置
DE3343455A1 (de) * 1983-12-01 1985-06-13 Philips Patentverwaltung Gmbh, 2000 Hamburg Schaltungsanordnung zum erkennen der vertikalaustastluecke in einem bildsignal
GB8414314D0 (en) * 1984-06-05 1984-07-11 Motorola Inc Vertical synchronisation pulse separator
US4600944A (en) * 1984-08-06 1986-07-15 Zenith Electronics Corporation Low cost synchronizing signal separator
US4697211A (en) * 1986-04-30 1987-09-29 Rca Corporation Sync separator with periodic updating
JPS63153963A (ja) * 1986-12-18 1988-06-27 Matsushita Electric Ind Co Ltd 同期分離装置

Also Published As

Publication number Publication date
DE69028235T3 (de) 2000-04-06
US5031041A (en) 1991-07-09
ATE142070T1 (de) 1996-09-15
TR26225A (tr) 1995-02-15
CA2013348A1 (en) 1990-10-20
EP0393558B1 (en) 1996-08-28
FI901859A0 (fi) 1990-04-12
JPH02301375A (ja) 1990-12-13
FI98110C (fi) 1997-04-10
DE69028235T2 (de) 1997-01-23
DE69028235D1 (de) 1996-10-02
CN1046648A (zh) 1990-10-31
KR900017410A (ko) 1990-11-16
EP0393558B2 (en) 1999-11-17
KR100236887B1 (ko) 2000-01-15
EP0393558A2 (en) 1990-10-24
FI98110B (fi) 1996-12-31
SG64304A1 (en) 1999-04-27
EP0393558A3 (en) 1992-10-14
ES2090057T3 (es) 1996-10-16
CN1038091C (zh) 1998-04-15
CA2013348C (en) 1999-06-01

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