JPS63185364U - - Google Patents
Info
- Publication number
- JPS63185364U JPS63185364U JP7557787U JP7557787U JPS63185364U JP S63185364 U JPS63185364 U JP S63185364U JP 7557787 U JP7557787 U JP 7557787U JP 7557787 U JP7557787 U JP 7557787U JP S63185364 U JPS63185364 U JP S63185364U
- Authority
- JP
- Japan
- Prior art keywords
- audio
- circuit
- subcarrier
- frequency
- control 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.)
- Pending
Links
- 238000001514 detection method Methods 0.000 claims description 4
- 230000005236 sound signal Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Television Receiver Circuits (AREA)
Description
第1図は本考案の一実施例の副搬送波ノイズ検
出回路を示す回路図である。
1……FM検波回路、2……ハイパスフイルタ
、3……エミツタホロワ、4……副搬送波トラツ
プ、5……検波回路。
FIG. 1 is a circuit diagram showing a subcarrier noise detection circuit according to an embodiment of the present invention. 1...FM detection circuit, 2...High pass filter, 3...Emitter follower, 4...Subcarrier trap, 5...Detection circuit.
Claims (1)
、 副搬送波の周波数を除くその周辺の周波数成分
を検知する手段を設け、該手段からのノイズ検知
信号により第2音声に関する回路を制御するよう
にしたことを特徴とする音声多重制御回路。 (2) 上記第2音声に関する回路が、第2音声を
ミユート、又は第1音声強制を行う回路であるこ
とを特徴とする音声多重制御回路。[Claims for Utility Model Registration] (1) In an audio multiplex reception circuit having a subcarrier, means is provided for detecting frequency components around the frequency of the subcarrier, excluding the frequency of the subcarrier, and a noise detection signal from the means is used to detect the second audio signal. 1. An audio multiplex control circuit, characterized in that the circuit controls a circuit related to the above. (2) An audio multiplex control circuit characterized in that the circuit related to the second audio is a circuit that mutes the second audio or forces the first audio.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7557787U JPS63185364U (en) | 1987-05-20 | 1987-05-20 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7557787U JPS63185364U (en) | 1987-05-20 | 1987-05-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS63185364U true JPS63185364U (en) | 1988-11-29 |
Family
ID=30921850
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7557787U Pending JPS63185364U (en) | 1987-05-20 | 1987-05-20 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS63185364U (en) |
-
1987
- 1987-05-20 JP JP7557787U patent/JPS63185364U/ja active Pending