JPS5516523A - Preset channel selector - Google Patents
Preset channel selectorInfo
- Publication number
- JPS5516523A JPS5516523A JP8869278A JP8869278A JPS5516523A JP S5516523 A JPS5516523 A JP S5516523A JP 8869278 A JP8869278 A JP 8869278A JP 8869278 A JP8869278 A JP 8869278A JP S5516523 A JPS5516523 A JP S5516523A
- Authority
- JP
- Japan
- Prior art keywords
- counter
- make
- output
- channel selector
- memory
- 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
Abstract
PURPOSE: To obtain an economical and easy-to-use preset channel selector, by preventing the presetting of the same station by making it possible to know whether a station in reception is preset or not.
CONSTITUTION: With switch 50 ON, FF51 is set to make its output high in level, and consequently a clock pulse is applied to the up input of up-down counter 47 via gate 48, thereby varying the division ratio of variable divider 21. If a receiving station exists when the content of counter 47 reaches a certain value, a signal appearing at the output of intermediate frequency amplifier circuit 17 resets FF51 to make its output low in level and any pulse is not applied to counter 47 via gate 48. When the content of counter 47 has been written to memory 42 yet at this time, light emitting element 57 comes on and when not, it stays unlighten. In this way, it is made possible to make a comparison between a tuning frequency stored in memory 42 and that obtained through the operation.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8869278A JPS5516523A (en) | 1978-07-20 | 1978-07-20 | Preset channel selector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8869278A JPS5516523A (en) | 1978-07-20 | 1978-07-20 | Preset channel selector |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5516523A true JPS5516523A (en) | 1980-02-05 |
Family
ID=13949885
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8869278A Pending JPS5516523A (en) | 1978-07-20 | 1978-07-20 | Preset channel selector |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5516523A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62208640A (en) * | 1986-03-07 | 1987-09-12 | Aisin Seiki Co Ltd | Resin sealing process for semiconductor element |
JPH04158080A (en) * | 1990-10-23 | 1992-06-01 | Matsushita Electric Ind Co Ltd | Mail certificate stamp |
-
1978
- 1978-07-20 JP JP8869278A patent/JPS5516523A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62208640A (en) * | 1986-03-07 | 1987-09-12 | Aisin Seiki Co Ltd | Resin sealing process for semiconductor element |
JPH04158080A (en) * | 1990-10-23 | 1992-06-01 | Matsushita Electric Ind Co Ltd | Mail certificate stamp |
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