JPS5469325A - Time base correction equipment - Google Patents
Time base correction equipmentInfo
- Publication number
- JPS5469325A JPS5469325A JP13688477A JP13688477A JPS5469325A JP S5469325 A JPS5469325 A JP S5469325A JP 13688477 A JP13688477 A JP 13688477A JP 13688477 A JP13688477 A JP 13688477A JP S5469325 A JPS5469325 A JP S5469325A
- Authority
- JP
- Japan
- Prior art keywords
- output
- time base
- oscillator
- supplied
- terminal
- 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 Not Specific To The Method Of Recording And Reproducing (AREA)
Abstract
PURPOSE: To obtain a time base correction equipment which can satisfy the NTSC standard even if it is combined with general VTR by controlling it by means of the clock which enters time delay and setting the analog varialbe delay line which delays the input having time base variation.
CONSTITUTION: Synchronizing separator 2 which can apply synchronizing separation to the input signal with time base variation to be given to terminal 11, first phase comparator 3 which can generate subcarrier with the special relation to a synchronizing signal and voltage control oscillator 5 which is controlled by the output of comparator 3 are attached and the output of oscillator 5 is supplied to VTR through teminal 12. The output of oscillator 5 is supplied to second phase comparator 6 and is compared with the standard subcarrier of terminal 15. Moreover, the output of separator 2 is supplied to third phase comparator 7 and is phase- compared with the standard synchronizing signal of terminal 16; both outputs of comparators 6 and 7 are added by adder 8 and error voltage is induced. Then, variable frequency oscillator 9 which generates clock signals is controlled and time delay of analog variable delay line 1 is also controlled, so that errors can be corrected.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13688477A JPS5469325A (en) | 1977-11-14 | 1977-11-14 | Time base correction equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13688477A JPS5469325A (en) | 1977-11-14 | 1977-11-14 | Time base correction equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5469325A true JPS5469325A (en) | 1979-06-04 |
Family
ID=15185789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13688477A Pending JPS5469325A (en) | 1977-11-14 | 1977-11-14 | Time base correction equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5469325A (en) |
-
1977
- 1977-11-14 JP JP13688477A patent/JPS5469325A/en active Pending
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