FR2423819A1 - Appareil pour engendrer un signal de code de temps d'enregistrement - Google Patents

Appareil pour engendrer un signal de code de temps d'enregistrement

Info

Publication number
FR2423819A1
FR2423819A1 FR7910115A FR7910115A FR2423819A1 FR 2423819 A1 FR2423819 A1 FR 2423819A1 FR 7910115 A FR7910115 A FR 7910115A FR 7910115 A FR7910115 A FR 7910115A FR 2423819 A1 FR2423819 A1 FR 2423819A1
Authority
FR
France
Prior art keywords
time code
code signal
binary digit
recording time
signal
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.)
Granted
Application number
FR7910115A
Other languages
English (en)
Other versions
FR2423819B1 (fr
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Publication of FR2423819A1 publication Critical patent/FR2423819A1/fr
Application granted granted Critical
Publication of FR2423819B1 publication Critical patent/FR2423819B1/fr
Expired 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
    • G11B20/10—Digital recording or reproducing
    • G11B20/14—Digital recording or reproducing using self-clocking codes
    • G11B20/1403—Digital recording or reproducing using self-clocking codes characterised by the use of two levels
    • G11B20/1407—Digital recording or reproducing using self-clocking codes characterised by the use of two levels code representation depending on a single bit, i.e. where a one is always represented by a first code symbol while a zero is always represented by a second code symbol
    • G11B20/1419—Digital recording or reproducing using self-clocking codes characterised by the use of two levels code representation depending on a single bit, i.e. where a one is always represented by a first code symbol while a zero is always represented by a second code symbol to or from biphase level coding, i.e. to or from codes where a one is coded as a transition from a high to a low level during the middle of a bit cell and a zero is encoded as a transition from a low to a high level during the middle of a bit cell or vice versa, e.g. split phase code, Manchester code conversion to or from biphase space or mark coding, i.e. to or from codes where there is a transition at the beginning of every bit cell and a one has no second transition and a zero has a second transition one half of a bit period later or vice versa, e.g. double frequency code, FM code
    • 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
    • G11B27/02—Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
    • G11B27/022—Electronic editing of analogue information signals, e.g. audio or video signals
    • G11B27/024—Electronic editing of analogue information signals, e.g. audio or video signals on tapes
    • 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
    • G11B27/02—Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
    • G11B27/022—Electronic editing of analogue information signals, e.g. audio or video signals
    • G11B27/028—Electronic editing of analogue information signals, e.g. audio or video signals with computer assistance
    • 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
    • G11B27/02—Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
    • G11B27/022—Electronic editing of analogue information signals, e.g. audio or video signals
    • G11B27/029—Insert-editing
    • 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
    • G11B27/323—Time code signal, e.g. on a cue track as SMPTE- or EBU-time code
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • General Engineering & Computer Science (AREA)
  • Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Television Signal Processing For Recording (AREA)

Abstract

a. Appareil pour engendrer un signal de code de temps d'enregistrement. b. Appareil caractérisé en ce qu'il comporte des moyens prévus dans le circuit de formation du signal de code de temps pour discriminer la polarité d'un signal de chiffre binaire spécifique d'un chiffre binaire déterminé dans ce signal de code de temps d'enregistrement d'unité de mot, et pour modifier ce chiffre binaire déterminé en accord avec la polarité du signal de chiffre binaire spécifique, ce signal de code de temps d'enregistrement d'unité de mot ayant une polarité constante de signaux de chiffres binaires après le signal de chiffre binaire spécifique précité. c. L invention s'applique notamment au montage par assemblage d'une bande vidéo.
FR7910115A 1978-04-20 1979-04-20 Appareil pour engendrer un signal de code de temps d'enregistrement Expired FR2423819B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53046934A JPS6019075B2 (ja) 1978-04-20 1978-04-20 記録用タイムコ−ド信号発生装置

Publications (2)

Publication Number Publication Date
FR2423819A1 true FR2423819A1 (fr) 1979-11-16
FR2423819B1 FR2423819B1 (fr) 1986-07-18

Family

ID=12761138

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7910115A Expired FR2423819B1 (fr) 1978-04-20 1979-04-20 Appareil pour engendrer un signal de code de temps d'enregistrement

Country Status (8)

Country Link
JP (1) JPS6019075B2 (fr)
AT (1) AT380609B (fr)
AU (1) AU522543B2 (fr)
CA (1) CA1135840A (fr)
DE (1) DE2916074A1 (fr)
FR (1) FR2423819B1 (fr)
GB (1) GB2020516B (fr)
NL (1) NL7903078A (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4340916A (en) * 1980-04-11 1982-07-20 Sony Corporation Apparatus and method for detecting discontinuities in time code addresses
JPS57123578A (en) * 1981-01-22 1982-08-02 Sony Corp Error correcting circuit for drive data
JPH03171460A (ja) * 1989-11-30 1991-07-24 Sony Magnescale Inc 磁気記録方法及び装置
GB2249656B (en) * 1990-11-12 1994-09-28 Daewoo Electronics Co Ltd A multi-deck video cassette recorder system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2066360A5 (fr) * 1969-10-27 1971-08-06 Ampex
US3681524A (en) * 1970-06-16 1972-08-01 Columbia Broadcasting Syst Inc Multiple frequency time code generator and reader
FR2201587A1 (fr) * 1972-09-29 1974-04-26 Ibm
FR2408248A1 (fr) * 1977-11-05 1979-06-01 Sony Corp Appareil pour creer des caracteres codes et notamment a codage biphase

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5949754B2 (ja) * 1976-07-31 1984-12-04 ソニー株式会社 テ−プの編集機

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2066360A5 (fr) * 1969-10-27 1971-08-06 Ampex
US3681524A (en) * 1970-06-16 1972-08-01 Columbia Broadcasting Syst Inc Multiple frequency time code generator and reader
FR2201587A1 (fr) * 1972-09-29 1974-04-26 Ibm
FR2408248A1 (fr) * 1977-11-05 1979-06-01 Sony Corp Appareil pour creer des caracteres codes et notamment a codage biphase

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
EXBK/70 *
EXBK/73 *
EXBK/75 *

Also Published As

Publication number Publication date
GB2020516A (en) 1979-11-14
JPS6019075B2 (ja) 1985-05-14
GB2020516B (en) 1982-06-30
FR2423819B1 (fr) 1986-07-18
AT380609B (de) 1986-06-25
AU522543B2 (en) 1982-06-10
DE2916074A1 (de) 1979-10-31
NL7903078A (nl) 1979-10-23
AU4629479A (en) 1979-10-25
JPS54139511A (en) 1979-10-30
DE2916074C2 (fr) 1988-03-03
ATA300879A (de) 1985-10-15
CA1135840A (fr) 1982-11-16

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Legal Events

Date Code Title Description
ST Notification of lapse