ES2097131T3 - Circuito para detectar pulsos, y grabador de video comprendiendo el circuito. - Google Patents

Circuito para detectar pulsos, y grabador de video comprendiendo el circuito.

Info

Publication number
ES2097131T3
ES2097131T3 ES90202326T ES90202326T ES2097131T3 ES 2097131 T3 ES2097131 T3 ES 2097131T3 ES 90202326 T ES90202326 T ES 90202326T ES 90202326 T ES90202326 T ES 90202326T ES 2097131 T3 ES2097131 T3 ES 2097131T3
Authority
ES
Spain
Prior art keywords
switching means
coupled
circuit
pulses
reference 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
ES90202326T
Other languages
English (en)
Inventor
Leeuwen Pieter Gerrit Van
Christian Henricus Petr Baeten
Loo Eduard Van
Johannes Inghels
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.)
Koninklijke Philips NV
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
Application granted granted Critical
Publication of ES2097131T3 publication Critical patent/ES2097131T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
    • G11B27/32—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on separate auxiliary tracks of the same or an auxiliary record carrier
    • G11B27/322—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on separate auxiliary tracks of the same or an auxiliary record carrier used signal is digitally coded
    • G11B27/324—Duty cycle modulation of control pulses, e.g. VHS-CTL-coding systems, RAPID-time code, VASS- or VISS-cue signals
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10009—Improvement or modification of read or write signals
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/90—Tape-like record carriers
    • G11B2220/91—Helical scan format, wherein tracks are slightly tilted with respect to tape direction, e.g. VHS, DAT, DVC, AIT or exabyte

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Manipulation Of Pulses (AREA)
  • Details Of Television Scanning (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Picture Signal Circuits (AREA)

Abstract

UN CIRCUITO PARA DETECTAR IMPULSOS EN UNA SEÑAL DE ENTRADA ELECTRICA, DICHOS IMPULSOS SE SUPERPONEN EN UN NIVEL DE REFERENCIA ESPECIFICO (UREF), TIENE UN TERMINAL DE ENTRADA (1) PARA RECIBIR LA SEÑAL DE ENTRADA ELECTRICA, AL MENOS UN PRIMER Y SEGUNDO DISPOSITIVO COMPARADOR (2,3), SISTEMA DE CONMUTACION (S1), UNA TEMINAL DE SALIDA (8) Y SISTEMA GENERADOR DE SEÑAL DE CONTROL (13). EL SISTEMA GENERADOR DE SEÑAL DE CONTROL SUMINISTRA UNA SEÑAL DE CONTROL AL SISTEMA DE CONMUTACION (S1) PARA CONTROLAR LA POSICION DEL SISTEMA DE CONMUTACION. EL TERMINAL DE ENTRADA (1) SE ACOPLA A UNA PRIMERA ENTRADA DE LOS DISPOSITIVOS COMPARADORES (2,3), CUYAS SALIDAS (6 Y 7 RESPECTIVAMENTE) SE ACOPLAN A UN TERMINAL (C Y A RESPECTIVAMENTE) DEL SISTEMA DE CONMUTACION (S1). EL TERMINAL DE SALIDA (B) DEL SISTEMA DE CONMUTACION SE ACOPLA AL TERMINAL DE SALIDA (8). EL PRIMER DISPOSITIVO COMPARADOR (2) SOLO TRANSFIERE IMPULSOS CUYA AMPLITUD RELATIVA EN RELACION AL NIVEL DE REFERENCIA EXCEDA UN PRIMER VALOR (UD1). EL SEGUNDO DISPOSITIVO COMPARADOR (3) SOLO TRANSFIERE IMPULSOS CUYA AMPLITUD RELATIVA EN RELACION AL NIVEL DE REFERENCIA EXCEDA UN SEGUNDO VALOR (UD2). CUANDO EL TERMINAL DE ENTRADA RECIBE IMPULSOS CONSECUTIVOS N1 CUYA AMPLITUD RELATIVA AL NIVEL DE REFERENCIA EXCEDE UN ESPECIFICO (TERCER) VALOR (UD3) EL SISTEMA DE CONMUTACION (S1) SE HA ESTABLECIDO O SE ESTABLECE EN LA POSICION C-B DE TAL MANERA QUE EL PRIMER COMPARADOR (2) SE ACOPLA AL TERMINAL DE ENTRADA (8). CUANDO SE CUENTAN LOS IMPULSOS CONSECUTIVOS N2 SUBSIGUIENTES CUYA AMPLITUD RELATIVA DESCANSA ENTRE UN CUARTO Y QUINTO VALOR (UD4 Y UD5 RESPECTIVAMENTE), DE FORMA QUE ( ), EL SISTEMA DE CONMUTACION (S1) SE HA ESTABLECIDO O SE ESTABLECE EN LA POSICION A-B DE TAL MODO QUE EL SEGUNDO DISPOSITIVO COMPARADOR (3) SE ACOPLA AL TERMINAL DE SALIDA (8). N1 Y N2 SON ENTEROS MAYORES O IGUALES A 1.
ES90202326T 1989-09-05 1990-09-03 Circuito para detectar pulsos, y grabador de video comprendiendo el circuito. Expired - Lifetime ES2097131T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL8902225A NL8902225A (nl) 1989-09-05 1989-09-05 Schakeling voor het detekteren van impulsen, en videorecorder voorzien van de schakeling.

Publications (1)

Publication Number Publication Date
ES2097131T3 true ES2097131T3 (es) 1997-04-01

Family

ID=19855263

Family Applications (1)

Application Number Title Priority Date Filing Date
ES90202326T Expired - Lifetime ES2097131T3 (es) 1989-09-05 1990-09-03 Circuito para detectar pulsos, y grabador de video comprendiendo el circuito.

Country Status (8)

Country Link
US (1) US5539340A (es)
EP (1) EP0416695B1 (es)
JP (1) JP2992584B2 (es)
KR (1) KR100190790B1 (es)
AT (1) ATE146007T1 (es)
DE (1) DE69029299T2 (es)
ES (1) ES2097131T3 (es)
NL (1) NL8902225A (es)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR940004592B1 (ko) * 1991-07-19 1994-05-25 삼성전자 주식회사 Viss 오동작 방지 회로
EP0774726A1 (en) * 1995-11-03 1997-05-21 STMicroelectronics S.r.l. Device for selecting analog voltage signals
US5889419A (en) * 1996-11-01 1999-03-30 Lucent Technologies Inc. Differential comparison circuit having improved common mode range
DE19702303A1 (de) * 1997-01-23 1998-07-30 Philips Patentverwaltung Schaltungsanordnung zum Erzeugen eines Ausgangssignals
JPH11345447A (ja) * 1998-03-30 1999-12-14 Mitsubishi Electric Corp Ｖｉｓｓ信号検出回路
US6038266A (en) * 1998-09-30 2000-03-14 Lucent Technologies, Inc. Mixed mode adaptive analog receive architecture for data communications
DE19905053C2 (de) * 1999-02-08 2003-05-08 Infineon Technologies Ag Komparatorschaltung
US7130340B1 (en) * 2000-10-27 2006-10-31 Sun Microsystems, Inc. Noise margin self-diagnostic receiver logic
JP4254683B2 (ja) * 2004-10-04 2009-04-15 株式会社デンソー コンパレータ切替え回路
US8519744B2 (en) * 2011-06-28 2013-08-27 General Electric Company Method of utilizing dual comparators to facilitate a precision signal rectification and timing system without signal feedback

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3593334A (en) * 1968-11-29 1971-07-13 Burroughs Corp Pulse discrimination system
US4167028A (en) * 1978-04-13 1979-09-04 Recortec, Inc. Method and an apparatus for time signal encoding/decoding
DE3030531C2 (de) * 1980-08-13 1982-05-19 Institut für Rundfunktechnik GmbH, 8000 München Verfahren und Schaltungsanordnung zum Demodulieren eines von einem magnetischen Informationsträger abgenommenen, ternär modulierten Datensignals
JPS5753809A (en) * 1980-09-16 1982-03-31 Toshiba Corp Waveform shaping circuit of digital signal processor
GB2120030B (en) * 1982-03-04 1986-11-12 Sansui Electric Co Digital signal demodulator circuit
DE3619359A1 (de) * 1986-06-09 1987-12-10 Gen Service Electronics Gmbh Verfahren zum uebertragen eines informationskodes auf der synchronspur eines videobandes, vorrichtung zur durchfuehrung des verfahrens sowie nach dem verfahren hergestelltes videoband
KR910003457B1 (ko) * 1987-09-17 1991-05-31 삼성전자 주식회사 광 디스크 드라이버의 데이타 트랙 카운터회로
JPH01265718A (ja) * 1988-04-18 1989-10-23 Toshiba Corp シュミットトリガ回路

Also Published As

Publication number Publication date
KR100190790B1 (ko) 1999-06-01
US5539340A (en) 1996-07-23
DE69029299D1 (de) 1997-01-16
ATE146007T1 (de) 1996-12-15
KR910006953A (ko) 1991-04-30
NL8902225A (nl) 1991-04-02
EP0416695A1 (en) 1991-03-13
JPH0393063A (ja) 1991-04-18
EP0416695B1 (en) 1996-12-04
JP2992584B2 (ja) 1999-12-20
DE69029299T2 (de) 1997-05-28

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