JPS553271A - Rotary head type magnetic picture recorder/reproducer - Google Patents

Rotary head type magnetic picture recorder/reproducer

Info

Publication number
JPS553271A
JPS553271A JP7604578A JP7604578A JPS553271A JP S553271 A JPS553271 A JP S553271A JP 7604578 A JP7604578 A JP 7604578A JP 7604578 A JP7604578 A JP 7604578A JP S553271 A JPS553271 A JP S553271A
Authority
JP
Japan
Prior art keywords
gate
output
rotary head
circuit
reproduction
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
JP7604578A
Other languages
Japanese (ja)
Other versions
JPS6117391B2 (en
Inventor
Takashi Misaki
Norihiko Miyawaki
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP7604578A priority Critical patent/JPS553271A/en
Priority to US06/049,116 priority patent/US4306255A/en
Publication of JPS553271A publication Critical patent/JPS553271A/en
Publication of JPS6117391B2 publication Critical patent/JPS6117391B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To secure reproduction of the stable still pictures through a simple constitution for the helical scan type VTR by giving a fixed duration to the output pulse of the level deciding means.
CONSTITUTION: Motor druve circuit 5 is connected to gate 4 and 7 which switch capstan motor 6 to the low-speed driving in case the normal reproduction state is switched to the still picture reproduction. And detection circuit 14 generates the pulses in accordance with the period when the level of the reproduction output envelope of the rotary head becomes less than the fixed detection level. In addition these circuits, the following units are provided: gate 13 to generate the AND output between of the pulse generated at circuit 14 and the rotary head switching pulse; motor brake circuit 9 which is connected to gate 15 to stop motor 6 having the low-speed driving via the AND output of gate 13; and FF12 to control the detection level which made constant the output pulse duration of gate 13. Thus switch signal (a) is applied to gate 15 for control.
COPYRIGHT: (C)1980,JPO&Japio
JP7604578A 1978-06-22 1978-06-22 Rotary head type magnetic picture recorder/reproducer Granted JPS553271A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP7604578A JPS553271A (en) 1978-06-22 1978-06-22 Rotary head type magnetic picture recorder/reproducer
US06/049,116 US4306255A (en) 1978-06-22 1979-06-18 Magnetic record/playback system of rotating head type

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7604578A JPS553271A (en) 1978-06-22 1978-06-22 Rotary head type magnetic picture recorder/reproducer

Publications (2)

Publication Number Publication Date
JPS553271A true JPS553271A (en) 1980-01-11
JPS6117391B2 JPS6117391B2 (en) 1986-05-07

Family

ID=13593816

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7604578A Granted JPS553271A (en) 1978-06-22 1978-06-22 Rotary head type magnetic picture recorder/reproducer

Country Status (1)

Country Link
JP (1) JPS553271A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2476421A1 (en) * 1980-02-20 1981-08-21 Sony Corp APPARATUS FOR REPRODUCING VIDEO SIGNALS RECORDED ON TRACKS PROVIDED OBLIALLY ON A BAND
JPS57127370A (en) * 1981-01-29 1982-08-07 Mitsubishi Electric Corp Reproducer of static picture
JPS58205941A (en) * 1982-05-25 1983-12-01 Matsushita Electric Ind Co Ltd Rotary head type magnetic video recording and reproducing device
JPS60123181A (en) * 1983-12-07 1985-07-01 Sony Corp Track jump detector for video tape recorder
JPS61191678U (en) * 1985-05-22 1986-11-28
JPS6298680U (en) * 1985-12-13 1987-06-23
JPS63232585A (en) * 1987-03-19 1988-09-28 Mitsubishi Electric Corp Magnetic video recorder and reproducing device
JPH03238286A (en) * 1990-02-16 1991-10-24 Mitsubishi Electric Corp Device for controlling elevator door

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2476421A1 (en) * 1980-02-20 1981-08-21 Sony Corp APPARATUS FOR REPRODUCING VIDEO SIGNALS RECORDED ON TRACKS PROVIDED OBLIALLY ON A BAND
JPS57127370A (en) * 1981-01-29 1982-08-07 Mitsubishi Electric Corp Reproducer of static picture
JPS6322672B2 (en) * 1981-01-29 1988-05-12 Mitsubishi Electric Corp
JPS58205941A (en) * 1982-05-25 1983-12-01 Matsushita Electric Ind Co Ltd Rotary head type magnetic video recording and reproducing device
JPS60123181A (en) * 1983-12-07 1985-07-01 Sony Corp Track jump detector for video tape recorder
JPS61191678U (en) * 1985-05-22 1986-11-28
JPS6298680U (en) * 1985-12-13 1987-06-23
JPH0313507Y2 (en) * 1985-12-13 1991-03-27
JPS63232585A (en) * 1987-03-19 1988-09-28 Mitsubishi Electric Corp Magnetic video recorder and reproducing device
JPH03238286A (en) * 1990-02-16 1991-10-24 Mitsubishi Electric Corp Device for controlling elevator door

Also Published As

Publication number Publication date
JPS6117391B2 (en) 1986-05-07

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