JPS5544211A - Video recording and reproducing unit - Google Patents

Video recording and reproducing unit

Info

Publication number
JPS5544211A
JPS5544211A JP11579278A JP11579278A JPS5544211A JP S5544211 A JPS5544211 A JP S5544211A JP 11579278 A JP11579278 A JP 11579278A JP 11579278 A JP11579278 A JP 11579278A JP S5544211 A JPS5544211 A JP S5544211A
Authority
JP
Japan
Prior art keywords
pulse
selection pulse
track
video signal
selection
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
JP11579278A
Other languages
Japanese (ja)
Other versions
JPS6147033B2 (en
Inventor
Hidekazu Funashiro
Yukio Takeuchi
Nobuo Azuma
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 JP11579278A priority Critical patent/JPS5544211A/en
Publication of JPS5544211A publication Critical patent/JPS5544211A/en
Publication of JPS6147033B2 publication Critical patent/JPS6147033B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Television Signal Processing For Recording (AREA)

Abstract

PURPOSE: To avoid waving on screen of television receiver at slow reproduction, by inserting the equivalent vertical synchronizing signal before the vertical synchronizing signal of normal video signal.
CONSTITUTION: For example, when the tracks 8, 9 recorded on 1, 2ch of the rotary head are at 1/2 flow reproduction, the head of 1, 2ch alternately and sequentially tracks on q-i, h-j, i-k, j-l. In this case, the distance between the start point 7 of the video signal and the selection pulse position 6 is α+αH/2, α-αH, α-αH/ 2 (αH is the number of track shift.) by taking the track as α. The selection pulse at the position 6 of selection pulse and the control pulse on the magnetic tape produce the equivalent vertical pulse signal having four phases to the selection pulse delayed in αH/4 unit for the selection pulse, and this pulse is inserted to immediatly be fore the video signal obtained with the said track.
COPYRIGHT: (C)1980,JPO&Japio
JP11579278A 1978-09-22 1978-09-22 Video recording and reproducing unit Granted JPS5544211A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11579278A JPS5544211A (en) 1978-09-22 1978-09-22 Video recording and reproducing unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11579278A JPS5544211A (en) 1978-09-22 1978-09-22 Video recording and reproducing unit

Publications (2)

Publication Number Publication Date
JPS5544211A true JPS5544211A (en) 1980-03-28
JPS6147033B2 JPS6147033B2 (en) 1986-10-17

Family

ID=14671176

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11579278A Granted JPS5544211A (en) 1978-09-22 1978-09-22 Video recording and reproducing unit

Country Status (1)

Country Link
JP (1) JPS5544211A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5780883A (en) * 1980-11-06 1982-05-20 Matsushita Electric Ind Co Ltd Rotary head type magnetic picture recording and reproducing device
US4404601A (en) * 1980-02-16 1983-09-13 Sony Corporation Head tracking control system
JPS6016776A (en) * 1984-06-11 1985-01-28 Matsushita Electric Ind Co Ltd Rotary head type magnetic video recording and reproducing device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4404601A (en) * 1980-02-16 1983-09-13 Sony Corporation Head tracking control system
JPS5780883A (en) * 1980-11-06 1982-05-20 Matsushita Electric Ind Co Ltd Rotary head type magnetic picture recording and reproducing device
JPS6016776A (en) * 1984-06-11 1985-01-28 Matsushita Electric Ind Co Ltd Rotary head type magnetic video recording and reproducing device

Also Published As

Publication number Publication date
JPS6147033B2 (en) 1986-10-17

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