JPS57183608A - False video signal generator using both ntsc and pal/ secam systems - Google Patents
False video signal generator using both ntsc and pal/ secam systemsInfo
- Publication number
- JPS57183608A JPS57183608A JP6851081A JP6851081A JPS57183608A JP S57183608 A JPS57183608 A JP S57183608A JP 6851081 A JP6851081 A JP 6851081A JP 6851081 A JP6851081 A JP 6851081A JP S57183608 A JPS57183608 A JP S57183608A
- Authority
- JP
- Japan
- Prior art keywords
- supplied
- pal
- terminal
- ntsc
- video signal
- 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
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
- G11B5/09—Digital recording
Landscapes
- Signal Processing For Digital Recording And Reproducing (AREA)
Abstract
PURPOSE:To obtain the corresponding video signals from the same false video signal generator in a PCM device, by using a changeover input between NISC and PAL/SECAM and selecting the changeover input. CONSTITUTION:The clock pulse generated from an oscillator 11 is supplied to a horizontal synchronizing counter 12, and a pulse is delivered to a horizontal synchronism to be supplied to a vertical synchronizing counter 13. The count values corresponding to each other and selected by the NTSC-PAL/SECAM changeover input supplied from a changeover input terminal T13 are supplied to the clear terminal of the counter 13 via a selector 14. The output of the counter 13 is supplied to a selector 15 and a decoder 16, and the digital input is supplied to the decoder 16 through the terminal 11. The outputs of the selector 15 and the decoder 16 are supplied to an FF17, and the signals produced in accordance with the NTSC or PAL/SECAM system are synthesized through a multiplexer 18. Then the false video signal corresponding to the changeover input supplied from the terminal 13 is obtained through the terminal 12.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6851081A JPS57183608A (en) | 1981-05-07 | 1981-05-07 | False video signal generator using both ntsc and pal/ secam systems |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6851081A JPS57183608A (en) | 1981-05-07 | 1981-05-07 | False video signal generator using both ntsc and pal/ secam systems |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57183608A true JPS57183608A (en) | 1982-11-12 |
Family
ID=13375776
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6851081A Pending JPS57183608A (en) | 1981-05-07 | 1981-05-07 | False video signal generator using both ntsc and pal/ secam systems |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57183608A (en) |
-
1981
- 1981-05-07 JP JP6851081A patent/JPS57183608A/en active Pending
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