JPS54112604A - Magnetic picture recorder-reproducer - Google Patents

Magnetic picture recorder-reproducer

Info

Publication number
JPS54112604A
JPS54112604A JP2006178A JP2006178A JPS54112604A JP S54112604 A JPS54112604 A JP S54112604A JP 2006178 A JP2006178 A JP 2006178A JP 2006178 A JP2006178 A JP 2006178A JP S54112604 A JPS54112604 A JP S54112604A
Authority
JP
Japan
Prior art keywords
signal
circuit
control data
audio
modulator
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
JP2006178A
Other languages
Japanese (ja)
Other versions
JPS6021412B2 (en
Inventor
Kenji Saito
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 JP53020061A priority Critical patent/JPS6021412B2/en
Publication of JPS54112604A publication Critical patent/JPS54112604A/en
Publication of JPS6021412B2 publication Critical patent/JPS6021412B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To eliminate and need for new recording tracks for control data signals by recording control data signals in audio signal tracks with the non-recorded section of a magnetic tape for a specified period as a reference.
CONSTITUTION: When the reproduction video signal from a VTR 1 is applied to a video signal detecting circuit 2, the circuit 2 outputs a high level signal in the video signal section and a low level signal in the section absent of the video signal. At the time when the signal changes from high to low level, a recording control circuit 3 drives a shift register 4 with a delay of a specified time such as 0.7 second or other to send the specified control data signal to a modulator 5. The modulator 5 modulates the control data signal to the signal within the audio frequency band and records the same in the audio signal of the VTR through a changeoever circuit 6. The circuit 6 applies the output of the modulator 5 to an audio head in place of the audio input signal for about 1 second after the level of the detection signal has changed from low to high.
COPYRIGHT: (C)1979,JPO&Japio
JP53020061A 1978-02-22 1978-02-22 magnetic recording and playback device Expired JPS6021412B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53020061A JPS6021412B2 (en) 1978-02-22 1978-02-22 magnetic recording and playback device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53020061A JPS6021412B2 (en) 1978-02-22 1978-02-22 magnetic recording and playback device

Publications (2)

Publication Number Publication Date
JPS54112604A true JPS54112604A (en) 1979-09-03
JPS6021412B2 JPS6021412B2 (en) 1985-05-27

Family

ID=12016554

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53020061A Expired JPS6021412B2 (en) 1978-02-22 1978-02-22 magnetic recording and playback device

Country Status (1)

Country Link
JP (1) JPS6021412B2 (en)

Also Published As

Publication number Publication date
JPS6021412B2 (en) 1985-05-27

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