JPS63142926U - - Google Patents
Info
- Publication number
- JPS63142926U JPS63142926U JP3652187U JP3652187U JPS63142926U JP S63142926 U JPS63142926 U JP S63142926U JP 3652187 U JP3652187 U JP 3652187U JP 3652187 U JP3652187 U JP 3652187U JP S63142926 U JPS63142926 U JP S63142926U
- Authority
- JP
- Japan
- Prior art keywords
- muting
- frequency
- control circuit
- audio
- circuit
- 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
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Noise Elimination (AREA)
Description
第1図はこの考案に係るミユーテイング制御回
路の一例を示す受信装置、第2図はPLLの系統
図、第3図はミユーテイング制御動作の一例を示
すフローチヤート、第4図は従来のミユーテイン
グ動作を説明する波形図である。
1……受信装置、10……チユーナ、13……
コントローラ、20……PLL、30……音声ミ
ユーテイング回路。
Fig. 1 is a receiving device showing an example of a muting control circuit according to this invention, Fig. 2 is a system diagram of a PLL, Fig. 3 is a flowchart showing an example of a muting control operation, and Fig. 4 is a diagram showing a conventional muting operation. FIG. 3 is a waveform diagram for explanation. 1... Receiving device, 10... Tuner, 13...
Controller, 20... PLL, 30... Audio muting circuit.
Claims (1)
時的に解除しながら周波数掃引を行なうようにし
た間欠ミユート方式のミユーテイング制御回路に
おいて、 局部発振器を周波数制御するPLLと、 これに選局信号を供給する制御用マイクロコン
ピユータと、 復調出力をミユーテイングする音声ミユーテイ
ング回路とを有し、 上記PLLからの周波数ロツク状態を示すロツ
ク信号が制御用マイクロコンピユータに取り込ま
れ、このロツク信号が入力したタイミングにより
、一定期間上記音声ミユーテイング回路を制御す
ることによつて、音声ミユートを一時的に解除す
るようにしたことを特徴とするミユーテイング制
御回路。 (2) 上記音声ミユーテイング一時解除時間は、
ほぼ120msecに選定されてなることを特徴
とする実用新案登録請求の範囲第1項記載のミユ
ーテイング制御回路。[Scope of Claim for Utility Model Registration] (1) In an intermittent muting type muting control circuit that sweeps the frequency while temporarily canceling audio muting for each inter-station frequency, a PLL that controls the frequency of a local oscillator; It has a control microcomputer that supplies a channel selection signal, and an audio muting circuit that mutates the demodulated output. A lock signal indicating the frequency lock state from the PLL is taken into the control microcomputer, and the lock signal is A muting control circuit characterized in that the audio muting is temporarily canceled by controlling the audio muting circuit for a certain period of time according to the input timing. (2) The above audio muting temporary release time is
The muting control circuit according to claim 1, characterized in that the muting control circuit is set to approximately 120 msec.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1987036521U JPH0424663Y2 (en) | 1987-03-12 | 1987-03-12 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1987036521U JPH0424663Y2 (en) | 1987-03-12 | 1987-03-12 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS63142926U true JPS63142926U (en) | 1988-09-20 |
JPH0424663Y2 JPH0424663Y2 (en) | 1992-06-11 |
Family
ID=30847000
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1987036521U Expired JPH0424663Y2 (en) | 1987-03-12 | 1987-03-12 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0424663Y2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009049954A (en) * | 2007-08-23 | 2009-03-05 | Victor Co Of Japan Ltd | Receiver and receiving method |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5815336A (en) * | 1981-07-20 | 1983-01-28 | Matsushita Electric Ind Co Ltd | Radio receiver |
JPS60150826U (en) * | 1984-03-17 | 1985-10-07 | オンキヨー株式会社 | Key operation bell sound generator |
-
1987
- 1987-03-12 JP JP1987036521U patent/JPH0424663Y2/ja not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5815336A (en) * | 1981-07-20 | 1983-01-28 | Matsushita Electric Ind Co Ltd | Radio receiver |
JPS60150826U (en) * | 1984-03-17 | 1985-10-07 | オンキヨー株式会社 | Key operation bell sound generator |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009049954A (en) * | 2007-08-23 | 2009-03-05 | Victor Co Of Japan Ltd | Receiver and receiving method |
Also Published As
Publication number | Publication date |
---|---|
JPH0424663Y2 (en) | 1992-06-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS63142926U (en) | ||
JPS596036Y2 (en) | Timer control device for television receivers, etc. | |
JPH0260378U (en) | ||
JPS6188378U (en) | ||
JPH01146630U (en) | ||
JPS59132240U (en) | Channel selection device | |
JPS647441U (en) | ||
JPH02130123U (en) | ||
JPS5850509U (en) | AGC circuit | |
JPS63159929U (en) | ||
JPH0186776U (en) | ||
JPH0310627U (en) | ||
JPH0228130U (en) | ||
JPS633673U (en) | ||
JPH03109430U (en) | ||
JPH0390128U (en) | ||
JPS6447174U (en) | ||
JPS63152372U (en) | ||
JPS61136343U (en) | ||
JPS60153229A (en) | Receiver circuit | |
JPS59132238U (en) | Channel selection device | |
JPH0379552U (en) | ||
JPS6293825U (en) | ||
JPS6391860U (en) | ||
JPS583637U (en) | television receiver |