JPS5566184A - Clock pulse generator circuit for picture broadcast receiver - Google Patents
Clock pulse generator circuit for picture broadcast receiverInfo
- Publication number
- JPS5566184A JPS5566184A JP13951278A JP13951278A JPS5566184A JP S5566184 A JPS5566184 A JP S5566184A JP 13951278 A JP13951278 A JP 13951278A JP 13951278 A JP13951278 A JP 13951278A JP S5566184 A JPS5566184 A JP S5566184A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- circuit
- picture
- broadcast signal
- picture broadcast
- 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 ensure the generation of the steady clock pulse synchronized with the data signal by increasing the exciting pulses of the crystal oscillator when receiving the picture broadcast signal composed of the line signal and the data signal synchronized with the line signal.
CONSTITUTION: With application of the video signal multiplied with the picture broadcast signal, multiplied signal sampling circuit 2 samples and delivers the picture broadcast signal. This picture broadcast signal output is converted into the double-frequency pulse through multiplier circuit 7 and then applied to crystal oscillation circuit 8. Circuit 8 is excited with this broadcast signal to keep the steady oscillation for the fixed time even after end of the excitation. The output of circuit 8 is then amplified 9 and converted through emitter-follower amplifier 10 into the pulse featuring the symmetric properties to be then given the phase control for application to sampling of the control signal through 1st phase controller circuit 14 after division 13 through inverter 12. At the same time, 2nd phase controller circuit 16 gives the phase control to the output of inverter 12 for application to sampling of the picture signal.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13951278A JPS5566184A (en) | 1978-11-13 | 1978-11-13 | Clock pulse generator circuit for picture broadcast receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13951278A JPS5566184A (en) | 1978-11-13 | 1978-11-13 | Clock pulse generator circuit for picture broadcast receiver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5566184A true JPS5566184A (en) | 1980-05-19 |
Family
ID=15247020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13951278A Pending JPS5566184A (en) | 1978-11-13 | 1978-11-13 | Clock pulse generator circuit for picture broadcast receiver |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5566184A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5921184A (en) * | 1982-07-28 | 1984-02-03 | Toshiba Corp | Clock reproducing circuit of data signal fetching |
| US4673979A (en) * | 1984-06-15 | 1987-06-16 | Matsushita Electric Industrial Co., Ltd. | Digital data reproducing system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5165822A (en) * | 1974-12-05 | 1976-06-07 | Matsushita Electric Ind Co Ltd | SEISHIGAZO JUSHINSOCHI |
-
1978
- 1978-11-13 JP JP13951278A patent/JPS5566184A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5165822A (en) * | 1974-12-05 | 1976-06-07 | Matsushita Electric Ind Co Ltd | SEISHIGAZO JUSHINSOCHI |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5921184A (en) * | 1982-07-28 | 1984-02-03 | Toshiba Corp | Clock reproducing circuit of data signal fetching |
| JPH0415677B2 (en) * | 1982-07-28 | 1992-03-18 | Tokyo Shibaura Electric Co | |
| US4673979A (en) * | 1984-06-15 | 1987-06-16 | Matsushita Electric Industrial Co., Ltd. | Digital data reproducing system |
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