JPS5539485A - Receiving device - Google Patents
Receiving deviceInfo
- Publication number
- JPS5539485A JPS5539485A JP14806378A JP14806378A JPS5539485A JP S5539485 A JPS5539485 A JP S5539485A JP 14806378 A JP14806378 A JP 14806378A JP 14806378 A JP14806378 A JP 14806378A JP S5539485 A JPS5539485 A JP S5539485A
- Authority
- JP
- Japan
- Prior art keywords
- channel selection
- frequency
- counter
- divider
- contents
- 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
Landscapes
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
- Superheterodyne Receivers (AREA)
Abstract
PURPOSE: To facilitate an easy channel selection over a wide frequency band by securing the complement relation for the contents of the channel selection counter of the PLL channel selection device to the largest value among three digits showing the reception frequency and then securing the 1:1 correspondence between the complement and the reception frequency in order to decide the division ratio for the divider.
CONSTITUTION: The reception channels are switched by varying division ratio N of 1/N divider 9 of the FM receiver using the frequency compounding technique and also varying the local oscillation frequency of front end 1. Division ratio N of divider 9 is decided by the output corresponding to the relation of the reception frequency of each channel of channel selection counter 14. The contents of counter 14 is converted into the decimal output via binary-decimal decoder 20, and reception frequency element device 23 is driven by the decimal output. At the same time, the decimal output is applied to matrix decoder 24. Then panel driving device 47 is driven, and also the contents of counter 14 is memorized in memories 59N and 59P. And the reading and writing control is given through control part CTL connected to the operation button.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14806378A JPS5539485A (en) | 1978-11-29 | 1978-11-29 | Receiving device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14806378A JPS5539485A (en) | 1978-11-29 | 1978-11-29 | Receiving device |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9605671A Division JPS555729B2 (en) | 1971-11-29 | 1971-11-29 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5539485A true JPS5539485A (en) | 1980-03-19 |
JPS5652493B2 JPS5652493B2 (en) | 1981-12-12 |
Family
ID=15444352
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14806378A Granted JPS5539485A (en) | 1978-11-29 | 1978-11-29 | Receiving device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5539485A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5129368A (en) * | 1974-09-05 | 1976-03-12 | Daikin Ind Ltd |
-
1978
- 1978-11-29 JP JP14806378A patent/JPS5539485A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5129368A (en) * | 1974-09-05 | 1976-03-12 | Daikin Ind Ltd |
Also Published As
Publication number | Publication date |
---|---|
JPS5652493B2 (en) | 1981-12-12 |
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