JPS5658120A - Record/reproduction state detector for recorder/ reproducer - Google Patents
Record/reproduction state detector for recorder/ reproducerInfo
- 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
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
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53141009A (en) * | 1977-05-13 | 1978-12-08 | Sony Corp | Digital signal processor |
-
1979
- 1979-10-18 JP JP13463179A patent/JPS5658120A/en active Pending
Patent Citations (1)
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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