JPS5658120A - Record/reproduction state detector for recorder/ reproducer - Google Patents

Record/reproduction state detector for recorder/ reproducer

Info

Publication number
JPS5658120A
JPS5658120A JP13463179A JP13463179A JPS5658120A JP S5658120 A JPS5658120 A JP S5658120A JP 13463179 A JP13463179 A JP 13463179A JP 13463179 A JP13463179 A JP 13463179A JP S5658120 A JPS5658120 A JP S5658120A
Authority
JP
Japan
Prior art keywords
record
difference
input
signal
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.)
Pending
Application number
JP13463179A
Other languages
Japanese (ja)
Inventor
Yoshiaki Moriyama
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.)
Pioneer Corp
Original Assignee
Pioneer Electronic 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 Pioneer Electronic Corp filed Critical Pioneer Electronic Corp
Priority to JP13463179A priority Critical patent/JPS5658120A/en
Publication of JPS5658120A publication Critical patent/JPS5658120A/en
Pending legal-status Critical Current

Links

Landscapes

  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

PURPOSE: To detect the record/reproduction state, by deciding the difference between the signal obtained by delaying the video format signal applied to the record input terminal and the signal supplied from the output terminal.
CONSTITUTION: In case the VTR1 is under the recording mode, the video format signal to be applied to the record terminal IN is led directly to the output terminal. On the other hand, it is general that a difference exists between the input signal to the terminal IN and the output signal to the reproduction output terminal OUT in case the VTR1 is under the reproduction mode. Accordingly, the record/reproduction state of the VTR can be detected by deciding the difference for the signals of the relevant input and output terminals. In recording, the record input signal is led to the output terminal through the reproduction circuit system of the VTR1, and thus a difference of the delayed time is caused between the input and output signals. Thus this difference is detected through the delay amount detecting circuit 5 to control the variable delaying circuit 6. And the PCM input data is delayed, and then the coincidence is decided through the difference detecting circuit 7 between the input and output signals.
COPYRIGHT: (C)1981,JPO&Japio
JP13463179A 1979-10-18 1979-10-18 Record/reproduction state detector for recorder/ reproducer Pending JPS5658120A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13463179A JPS5658120A (en) 1979-10-18 1979-10-18 Record/reproduction state detector for recorder/ reproducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13463179A JPS5658120A (en) 1979-10-18 1979-10-18 Record/reproduction state detector for recorder/ reproducer

Publications (1)

Publication Number Publication Date
JPS5658120A true JPS5658120A (en) 1981-05-21

Family

ID=15132880

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13463179A Pending JPS5658120A (en) 1979-10-18 1979-10-18 Record/reproduction state detector for recorder/ reproducer

Country Status (1)

Country Link
JP (1) JPS5658120A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53141009A (en) * 1977-05-13 1978-12-08 Sony Corp Digital signal processor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53141009A (en) * 1977-05-13 1978-12-08 Sony Corp Digital signal processor

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