JPS5612131A - Synthesizer type receiver - Google Patents
Synthesizer type receiverInfo
- Publication number
- JPS5612131A JPS5612131A JP8773979A JP8773979A JPS5612131A JP S5612131 A JPS5612131 A JP S5612131A JP 8773979 A JP8773979 A JP 8773979A JP 8773979 A JP8773979 A JP 8773979A JP S5612131 A JPS5612131 A JP S5612131A
- Authority
- JP
- Japan
- Prior art keywords
- time
- output
- latch circuit
- circuit
- pulse generator
- 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.)
- Granted
Links
Abstract
PURPOSE: To vary a reception frequency securely even when the repetitive speed of pulses increases by driving a counter reset periodically with a channel selection pulse and then by supplying its output to a PLL circuit via a latch circuit.
CONSTITUTION: The output of channel selection pulse generator 15 is supplied to up-down counter 21, the output of which is read out by latch circuit 20 at very time T determined by periodic pulse generator 22 and held for time T. Dividing-ratio setting circuit 13 is controlled by the output of latch circuit 20 to keep division ratio N constant for time T and time T is made much longer than the response time of PLL circuit 16, so that PLL circuit 16 will follow up at intervals of time T. Further, counter 21 is reset right after its output is read by latch circuit 20 and in the next time T, pulses generated by pulse generator 15 are securely counted.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8773979A JPS5612131A (en) | 1979-07-10 | 1979-07-10 | Synthesizer type receiver |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8773979A JPS5612131A (en) | 1979-07-10 | 1979-07-10 | Synthesizer type receiver |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5612131A true JPS5612131A (en) | 1981-02-06 |
JPS644372B2 JPS644372B2 (en) | 1989-01-25 |
Family
ID=13923288
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8773979A Granted JPS5612131A (en) | 1979-07-10 | 1979-07-10 | Synthesizer type receiver |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5612131A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57163846U (en) * | 1981-04-08 | 1982-10-15 |
-
1979
- 1979-07-10 JP JP8773979A patent/JPS5612131A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57163846U (en) * | 1981-04-08 | 1982-10-15 | ||
JPS6345062Y2 (en) * | 1981-04-08 | 1988-11-22 |
Also Published As
Publication number | Publication date |
---|---|
JPS644372B2 (en) | 1989-01-25 |
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