JPS55669A - Receiving device - Google Patents
Receiving deviceInfo
- Publication number
- JPS55669A JPS55669A JP14806178A JP14806178A JPS55669A JP S55669 A JPS55669 A JP S55669A JP 14806178 A JP14806178 A JP 14806178A JP 14806178 A JP14806178 A JP 14806178A JP S55669 A JPS55669 A JP S55669A
- Authority
- JP
- Japan
- Prior art keywords
- frequency
- output
- divider
- channel selection
- oscillator
- 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
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J5/00—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
- H03J5/02—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with variable tuning element having a number of predetermined settings and adjustable to a desired one of these settings
- H03J5/0245—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form
- H03J5/0272—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form the digital values being used to preset a counter or a frequency divider in a phase locked loop, e.g. frequency synthesizer
- H03J5/0281—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form the digital values being used to preset a counter or a frequency divider in a phase locked loop, e.g. frequency synthesizer the digital values being held in an auxiliary non erasable memory
Landscapes
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
- Superheterodyne Receivers (AREA)
Abstract
PURPOSE:To obtain a so-called synthesizer receiver applying the frequency synthesizing technique in that the channel selection is performed by setting the oscillation frequency of the local oscillator to the prescribed value via the output of the reference oscillator. CONSTITUTION:Intermediate-frequency amplifier 2, FM demodulator 3, muting circuit 4 and stereo demodulation part 5 are connected to front end 1. Thus the right and left signals are obtained at the output terminals 5R and 5L respectively. The local oscillation frequency of front end 1 undergoes the frequency multiplication via mixer 6 and 1/4-divider 8 and is then compared with the output given from reference oscillator 11 through 1/N-divider 9 at frequency phase comparator 10. And this output is fed back to the local oscillator to carry out the channel selection. In addition, the circuit is provided to vary the division ratio of divider 9 and then detect the fact that the receivable broadcast station has been received, along with the memory which can memorize the contents of the channel selection counter.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14806178A JPS55669A (en) | 1978-11-29 | 1978-11-29 | Receiving device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14806178A JPS55669A (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 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9589580A Division JPS56119538A (en) | 1980-07-14 | 1980-07-14 | Receiving device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55669A true JPS55669A (en) | 1980-01-07 |
JPS5652496B2 JPS5652496B2 (en) | 1981-12-12 |
Family
ID=15444302
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14806178A Granted JPS55669A (en) | 1978-11-29 | 1978-11-29 | Receiving device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55669A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5898548U (en) * | 1981-12-25 | 1983-07-05 | 大阪瓦斯株式会社 | water heater |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58134089U (en) * | 1982-03-01 | 1983-09-09 | 株式会社村田製作所 | High pressure generator |
JPS5976176A (en) * | 1982-10-25 | 1984-05-01 | Denki Onkyo Co Ltd | High voltage generator |
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 JP14806178A patent/JPS55669A/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 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5898548U (en) * | 1981-12-25 | 1983-07-05 | 大阪瓦斯株式会社 | water heater |
JPS6227798Y2 (en) * | 1981-12-25 | 1987-07-16 |
Also Published As
Publication number | Publication date |
---|---|
JPS5652496B2 (en) | 1981-12-12 |
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