JPS5612181A - Signal recording and reproducing device - Google Patents

Signal recording and reproducing device

Info

Publication number
JPS5612181A
JPS5612181A JP8721479A JP8721479A JPS5612181A JP S5612181 A JPS5612181 A JP S5612181A JP 8721479 A JP8721479 A JP 8721479A JP 8721479 A JP8721479 A JP 8721479A JP S5612181 A JPS5612181 A JP S5612181A
Authority
JP
Japan
Prior art keywords
video signal
speed
reproduction
fixed
video
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.)
Pending
Application number
JP8721479A
Other languages
Japanese (ja)
Inventor
Hisaharu Takeuchi
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP8721479A priority Critical patent/JPS5612181A/en
Publication of JPS5612181A publication Critical patent/JPS5612181A/en
Pending legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Signal Processing For Recording (AREA)

Abstract

PURPOSE:To make stable variable-speed reproduction possible by varying the write or read speed of a video memory in accordance with the run speed of a tape. CONSTITUTION:In fixed-head VTR, a video signal is expanded or compressed on the time axis in reproduction other than the standard mode in accordance with a reproduction speed, and video signal writing circuit 18 consisting of a sample holding circuit and A/D converter operates by receiving information on the speed of a capstan to sample a video signal from reproducing circuit 17 at fixed intervals, thereby writing it in video memory 19. Namely, the video signal expanded or compressed on the time axis is sampled according to the expansion or compression to obtain a video signal at fixed sampling points which is equally divided in a vertical synchronizing period. Therefore, a standard video signal can easily be obtained from a video signal with the speed variable.
JP8721479A 1979-07-10 1979-07-10 Signal recording and reproducing device Pending JPS5612181A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8721479A JPS5612181A (en) 1979-07-10 1979-07-10 Signal recording and reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8721479A JPS5612181A (en) 1979-07-10 1979-07-10 Signal recording and reproducing device

Publications (1)

Publication Number Publication Date
JPS5612181A true JPS5612181A (en) 1981-02-06

Family

ID=13908671

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8721479A Pending JPS5612181A (en) 1979-07-10 1979-07-10 Signal recording and reproducing device

Country Status (1)

Country Link
JP (1) JPS5612181A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5989085A (en) * 1982-10-11 1984-05-23 Sony Corp Reproducer of digital television signal
JPS61150706A (en) * 1984-12-25 1986-07-09 Kawasaki Steel Corp Roll cooling method of cold rolling mill

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49127517A (en) * 1973-04-05 1974-12-06
JPS5251813A (en) * 1975-10-24 1977-04-26 Olympus Optical Co Ltd Static picture reproducing equipment
JPS5283117A (en) * 1975-12-31 1977-07-11 Ricoh Co Ltd Frequency conversion at video signal processing

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49127517A (en) * 1973-04-05 1974-12-06
JPS5251813A (en) * 1975-10-24 1977-04-26 Olympus Optical Co Ltd Static picture reproducing equipment
JPS5283117A (en) * 1975-12-31 1977-07-11 Ricoh Co Ltd Frequency conversion at video signal processing

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5989085A (en) * 1982-10-11 1984-05-23 Sony Corp Reproducer of digital television signal
JPS61150706A (en) * 1984-12-25 1986-07-09 Kawasaki Steel Corp Roll cooling method of cold rolling mill

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