JPS61195128U - - Google Patents
Info
- Publication number
- JPS61195128U JPS61195128U JP6840185U JP6840185U JPS61195128U JP S61195128 U JPS61195128 U JP S61195128U JP 6840185 U JP6840185 U JP 6840185U JP 6840185 U JP6840185 U JP 6840185U JP S61195128 U JPS61195128 U JP S61195128U
- Authority
- JP
- Japan
- Prior art keywords
- detection
- output
- volume level
- audio circuit
- low volume
- 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
- 238000001514 detection method Methods 0.000 claims description 9
- 230000002159 abnormal effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Television Receiver Circuits (AREA)
- Noise Elimination (AREA)
Description
第１図は本考案による音声ミユート回路の一実
施例を示すブロツク図、第２図はその動作を示す
フローチヤートである。
１：マイコンＩＣ、２：選局・音量制御部、３
：音量ステツプ検出部、９：音声回路、１１：同
期状態検出回路。
FIG. 1 is a block diagram showing an embodiment of the audio mute circuit according to the present invention, and FIG. 2 is a flowchart showing its operation. 1: Microcomputer IC, 2: Tuning/volume control section, 3
: Volume step detection section, 9: Audio circuit, 11: Synchronization state detection circuit.
Claims (1)
信状態か否かを検出する第１の検出部と、上記音
声回路が所定の小音量レベル以上の状態にセツト
されていると一方の出力を発生し、上記小音量レ
ベル以下の状態にセツトされていると他方の出力
を発生する第２の検出部と、上記第１第２の検出
部の出力に応じて前記音声回路の音量レベルを変
化させる制御部とを備え、前記制御部は第１の検
出部からの無信号又は異常受信状態の検出出力及
び第２の検出部からの前記一方の出力を得たとき
のみ上記音声回路を前記所定の小音量レベルに強
制的に切換えるようにしたことを特徴とする放送
受信機の音声ミユート回路。 In a broadcast receiver equipped with an audio circuit, a first detection unit detects whether or not the reception is in a normal reception state, and when the audio circuit is set to a predetermined low volume level or higher, one output is generated. a second detection section that generates the other output when the sound volume is set to a state below the low volume level; and a second detection section that changes the volume level of the audio circuit according to the output of the first and second detection sections. a control unit, the control unit controls the audio circuit to the predetermined position only when it receives a detection output of no signal or abnormal reception state from the first detection unit and one of the outputs from the second detection unit. An audio mute circuit for a broadcast receiver, characterized by forcibly switching to a low volume level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6840185U JPS61195128U (en) | 1985-05-09 | 1985-05-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6840185U JPS61195128U (en) | 1985-05-09 | 1985-05-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61195128U true JPS61195128U (en) | 1986-12-05 |
Family
ID=30603116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6840185U Pending JPS61195128U (en) | 1985-05-09 | 1985-05-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61195128U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0246475U (en) * | 1988-09-22 | 1990-03-29 |
-
1985
- 1985-05-09 JP JP6840185U patent/JPS61195128U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0246475U (en) * | 1988-09-22 | 1990-03-29 |
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