JPS554138A - Still picture receiver circuit - Google Patents
Still picture receiver circuitInfo
- Publication number
- JPS554138A JPS554138A JP7694778A JP7694778A JPS554138A JP S554138 A JPS554138 A JP S554138A JP 7694778 A JP7694778 A JP 7694778A JP 7694778 A JP7694778 A JP 7694778A JP S554138 A JPS554138 A JP S554138A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- still picture
- outputs
- information
- output 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
- Television Systems (AREA)
Abstract
PURPOSE: To regenerate a still picture signal superposed on a TV broadcast signal by temporarily storing a transmitted multiple information signal in RAM and then by reading it out.
CONSTITUTION: To write a still picture signal to RAM6, switches SW1 and SW2 are connected to the terminal T2 side. Bit counter 5, reset by a horizontal synchronizing signal from synchronous separator circuit 3, outputs a signal prescribing the horizontal direction of a regenerated picture in a period of a horizontal synchronizing signal. Line counter 7, reset by a vertical synchronizing signal, counts up the horizontal synchronizing signal and generates it output at output terminal 73. Next, a still picture information sampling pulse appearing at output terminal 74 is supplied to still picture sampling circuit 4, which outputs still picture information from output terminal 41. By this information a line code signal is extracted by control signal detection circuit 9 and a still picture signal is also extracted by still picture sampling circuit 8; the both are written to addresses of RAM 6 determined by the outputs of counters 5 and 7. As for read operation, switches SW1 and SW2 are connected to the terminal T2 side and a picture is reproduced on cathode-ray tube 11 at addresses determined by the outputs of counters 5 and 7.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7694778A JPS554138A (en) | 1978-06-27 | 1978-06-27 | Still picture receiver circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7694778A JPS554138A (en) | 1978-06-27 | 1978-06-27 | Still picture receiver circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS554138A true JPS554138A (en) | 1980-01-12 |
Family
ID=13619945
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7694778A Pending JPS554138A (en) | 1978-06-27 | 1978-06-27 | Still picture receiver circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS554138A (en) |
-
1978
- 1978-06-27 JP JP7694778A patent/JPS554138A/en active Pending
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