JPS5470812A - Video magnetic recorder - Google Patents

Video magnetic recorder

Info

Publication number
JPS5470812A
JPS5470812A JP13666277A JP13666277A JPS5470812A JP S5470812 A JPS5470812 A JP S5470812A JP 13666277 A JP13666277 A JP 13666277A JP 13666277 A JP13666277 A JP 13666277A JP S5470812 A JPS5470812 A JP S5470812A
Authority
JP
Japan
Prior art keywords
image
signals
memory
relationship
elongating
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
JP13666277A
Other languages
Japanese (ja)
Inventor
Hisanori Terajima
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP13666277A priority Critical patent/JPS5470812A/en
Publication of JPS5470812A publication Critical patent/JPS5470812A/en
Pending legal-status Critical Current

Links

Landscapes

  • Television Signal Processing For Recording (AREA)

Abstract

PURPOSE: To improve the S/N ratio of a reproduced image by elongating image signals but compressing the synchronous signals having no relationship with image quality to write them in a memory thereby to accomplish the effective record of image portions.
CONSTITUTION: The image signals of video signals are elongated by means of an elongating circuit 1, but synchronous signals are compressed so that they are written in an image mangetic memory 2. Thus, the image signals having relationship whith the image quality are effectively recorded in the memory 2. As a result, if the memory 2 is read out so that the compression and elongation are accomplished oppositely of the writing operation by means of a compression circuit 3, it is possible to reproduce an image having an excellent S/N ratio.
COPYRIGHT: (C)1979,JPO&Japio
JP13666277A 1977-11-16 1977-11-16 Video magnetic recorder Pending JPS5470812A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13666277A JPS5470812A (en) 1977-11-16 1977-11-16 Video magnetic recorder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13666277A JPS5470812A (en) 1977-11-16 1977-11-16 Video magnetic recorder

Publications (1)

Publication Number Publication Date
JPS5470812A true JPS5470812A (en) 1979-06-07

Family

ID=15180557

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13666277A Pending JPS5470812A (en) 1977-11-16 1977-11-16 Video magnetic recorder

Country Status (1)

Country Link
JP (1) JPS5470812A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60201784A (en) * 1984-03-27 1985-10-12 Matsushita Electric Ind Co Ltd Video signal processing device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60201784A (en) * 1984-03-27 1985-10-12 Matsushita Electric Ind Co Ltd Video signal processing device

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