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JPS5478920A - Video recorder - Google Patents

Video recorder

Info

Publication number
JPS5478920A
JPS5478920A JP14608177A JP14608177A JPS5478920A JP S5478920 A JPS5478920 A JP S5478920A JP 14608177 A JP14608177 A JP 14608177A JP 14608177 A JP14608177 A JP 14608177A JP S5478920 A JPS5478920 A JP S5478920A
Authority
JP
Japan
Prior art keywords
video signal
circuit
level
recording
negative
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
JP14608177A
Other languages
Japanese (ja)
Other versions
JPS6023549B2 (en
Inventor
Akiyoshi Hakoyama
Kenji Kamiya
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
Nippon Telegraph and Telephone Corp
Original Assignee
Hitachi Ltd
Nippon Telegraph and Telephone 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 Hitachi Ltd, Nippon Telegraph and Telephone Corp filed Critical Hitachi Ltd
Priority to JP52146081A priority Critical patent/JPS6023549B2/en
Publication of JPS5478920A publication Critical patent/JPS5478920A/en
Publication of JPS6023549B2 publication Critical patent/JPS6023549B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To enable to perform recording with the polarity suitable for the video information served automatically, by indluding the negative and positive designated information in the video signal and by recording with the polarity according to it with the detection of the information.
CONSTITUTION: The video signal after quantization is inputted to the negative and positive discrimination circuit 18, and when the video signal at the center of the negative and positive designation areas 25a and 25b is fed, write-in pulse is inputted from the horizontal position control circuit 16 receiving the output of the vertical position discrimination circuit 15, and the video signal level at the center of the areas 25a and 25b is written in the circuit 18. The video signal level is at black level when the display picture on the CRT tube is (a), and white level at (b), and in either case, the white and black inversion circuit 3 recording the level written in the circuit 18 as black (or white) is operated and the recording is automatically made with suitable polarity.
COPYRIGHT: (C)1979,JPO&Japio
JP52146081A 1977-12-07 1977-12-07 image recording device Expired JPS6023549B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP52146081A JPS6023549B2 (en) 1977-12-07 1977-12-07 image recording device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP52146081A JPS6023549B2 (en) 1977-12-07 1977-12-07 image recording device

Publications (2)

Publication Number Publication Date
JPS5478920A true JPS5478920A (en) 1979-06-23
JPS6023549B2 JPS6023549B2 (en) 1985-06-07

Family

ID=15399675

Family Applications (1)

Application Number Title Priority Date Filing Date
JP52146081A Expired JPS6023549B2 (en) 1977-12-07 1977-12-07 image recording device

Country Status (1)

Country Link
JP (1) JPS6023549B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57163875U (en) * 1981-04-09 1982-10-15
JPS58204682A (en) * 1982-05-21 1983-11-29 Sharp Corp Video disc player
JPS59228479A (en) * 1983-06-08 1984-12-21 Mitsubishi Electric Corp Printer device of television receiver

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57163875U (en) * 1981-04-09 1982-10-15
JPS58204682A (en) * 1982-05-21 1983-11-29 Sharp Corp Video disc player
JPH0143511B2 (en) * 1982-05-21 1989-09-21 Sharp Kk
JPS59228479A (en) * 1983-06-08 1984-12-21 Mitsubishi Electric Corp Printer device of television receiver

Also Published As

Publication number Publication date
JPS6023549B2 (en) 1985-06-07

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