GB1216624A - Apparatus for controlling the tension of a magnetic video tape - Google Patents

Apparatus for controlling the tension of a magnetic video tape

Info

Publication number
GB1216624A
GB1216624A GB636/70A GB63670A GB1216624A GB 1216624 A GB1216624 A GB 1216624A GB 636/70 A GB636/70 A GB 636/70A GB 63670 A GB63670 A GB 63670A GB 1216624 A GB1216624 A GB 1216624A
Authority
GB
United Kingdom
Prior art keywords
drop
circuit
signal
pulses
out interval
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
Application number
GB636/70A
Other languages
English (en)
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.)
Ampex Corp
Original Assignee
Ampex 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 Ampex Corp filed Critical Ampex Corp
Publication of GB1216624A publication Critical patent/GB1216624A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/79—Processing of colour television signals in connection with recording
    • H04N9/87—Regeneration of colour television signals
    • H04N9/88—Signal drop-out compensation
    • H04N9/882—Signal drop-out compensation the signal being a composite colour television signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/93—Regeneration of the television signal or of selected parts thereof
    • H04N5/932—Regeneration of analogue synchronisation signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Signal Processing For Recording (AREA)
  • Control Of Velocity Or Acceleration (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
GB636/70A 1968-05-06 1969-05-05 Apparatus for controlling the tension of a magnetic video tape Expired GB1216624A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US72686768A 1968-05-06 1968-05-06

Publications (1)

Publication Number Publication Date
GB1216624A true GB1216624A (en) 1970-12-23

Family

ID=24920334

Family Applications (2)

Application Number Title Priority Date Filing Date
GB636/70A Expired GB1216624A (en) 1968-05-06 1969-05-05 Apparatus for controlling the tension of a magnetic video tape
GB22832/69A Expired GB1216623A (en) 1968-05-06 1969-05-05 Systems for processing composite television signals

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB22832/69A Expired GB1216623A (en) 1968-05-06 1969-05-05 Systems for processing composite television signals

Country Status (6)

Country Link
US (1) US3573359A (enExample)
JP (2) JPS5128212B1 (enExample)
BE (1) BE732540A (enExample)
DE (1) DE1923111B2 (enExample)
FR (1) FR2049039B1 (enExample)
GB (2) GB1216624A (enExample)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6811420A (enExample) * 1968-08-09 1970-02-11
AT312716B (de) * 1969-08-20 1974-01-10 Bosch Fernsehanlagen Verfahren zur Verzögerung mehrerer breitbandiger elektrischer Signale, insbesondere von Fernsehsignalen, und Verzögerungs-Einrichtung zur Durchführung dieses Verfahrens
JPS5094827A (enExample) * 1973-12-22 1975-07-28
JPS582625B2 (ja) * 1978-08-31 1983-01-18 ティーディーケイ株式会社 ドロップアウト位置マ−キング装置
JPS5558868A (en) * 1978-10-21 1980-05-01 Takeshi Harada Video reproducing unit
JPS55107388A (en) * 1979-02-13 1980-08-18 Olympus Optical Co Ltd Synchronizing signal separation system
US4334247A (en) * 1980-06-26 1982-06-08 Spin Physics, Inc. Apparatus useful for converting asynchronous video information to synchronous video information
CA1157939A (en) * 1980-07-14 1983-11-29 Yoshizumi Watatani Noise elimination circuit in a magnetic recording and reproducing apparatus
US4387407A (en) * 1981-08-27 1983-06-07 Rca Corporation Video disc player having auxiliary vertical synchronizing generator
DE3142272A1 (de) * 1981-10-24 1983-05-05 Philips Patentverwaltung Gmbh, 2000 Hamburg Schaltungsanordnung zur erzeugung der vertikal-synchronisierinformation in einem video-magnetbandgeraet
CA1212729A (en) * 1981-12-08 1986-10-14 Hiroshi Ogawa Digital signal detecting and compensating circuit with adjustable window signal
DE3233389A1 (de) * 1982-09-09 1984-08-02 Telefunken Fernseh Und Rundfunk Gmbh, 3000 Hannover Schaltung zur verringerung von kopfwechselstoerungen in einem recorder
EP0119199B1 (en) * 1982-09-17 1990-02-28 Ampex Corporation Method and apparatus for producing an artificial vertical synchronizing signal for video tape recording
US4677484A (en) * 1985-05-10 1987-06-30 Rca Corporation Stabilizing arrangement for on-screen display
US6688888B1 (en) * 1996-03-19 2004-02-10 Chi Fai Ho Computer-aided learning system and method
US5944530A (en) * 1996-08-13 1999-08-31 Ho; Chi Fai Learning method and system that consider a student's concentration level
USRE38432E1 (en) 1998-01-29 2004-02-24 Ho Chi Fai Computer-aided group-learning methods and systems
US9792659B2 (en) * 1999-04-13 2017-10-17 Iplearn, Llc Computer-aided methods and apparatus to access materials in a network environment
US6398556B1 (en) * 1998-07-06 2002-06-04 Chi Fai Ho Inexpensive computer-aided learning methods and apparatus for learners

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2854526A (en) * 1955-02-10 1958-09-30 Rca Corp Magnetic recording
US2944108A (en) * 1958-03-27 1960-07-05 Rca Corp Television synchronizing system
FR1280143A (fr) * 1959-11-30 1961-12-29 Tokyo Shibaura Electric Co Dispositifs de lecture d'enregistrements magnétiques de signaux de télévision
US3322892A (en) * 1962-12-27 1967-05-30 Matsushita Electric Industrial Co Ltd Television signal recording and reproducing with sync signal regeneration
US3356921A (en) * 1964-04-24 1967-12-05 Minnesota Mining & Mfg Motor control circuit with compensation for dropout of control signals
US3383463A (en) * 1964-08-17 1968-05-14 Machtronics Inc Signal processing for reproducing magnetically recorded television signals
FR1441798A (fr) * 1965-05-11 1966-06-10 Ampex Dispositif régulateur de tension mécanique pour appareils d'enregistrement à large bande passante
US3408457A (en) * 1965-06-23 1968-10-29 Ampex Clamped video dropout compensator

Also Published As

Publication number Publication date
BE732540A (enExample) 1969-10-16
US3573359A (en) 1971-04-06
DE1923111B2 (de) 1971-06-24
DE1923111A1 (de) 1969-11-27
JPS5128211B1 (enExample) 1976-08-18
GB1216623A (en) 1970-12-23
JPS5128212B1 (enExample) 1976-08-18
FR2049039A1 (enExample) 1971-03-26
FR2049039B1 (enExample) 1976-06-18

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