JPS6224575U - - Google Patents
Info
- Publication number
- JPS6224575U JPS6224575U JP11364485U JP11364485U JPS6224575U JP S6224575 U JPS6224575 U JP S6224575U JP 11364485 U JP11364485 U JP 11364485U JP 11364485 U JP11364485 U JP 11364485U JP S6224575 U JPS6224575 U JP S6224575U
- Authority
- JP
- Japan
- Prior art keywords
- audio multiplex
- mode
- signal
- 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.)
- Pending
Links
- 230000009977 dual effect Effects 0.000 claims 2
- 230000005684 electric field Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
Landscapes
- Television Receiver Circuits (AREA)
Description
第１図は本考案によるＴＶ音声多重チユーナの
一実施例を示す回路図及び第２図は従来のＴＶ音
声多重チユーナの回路図である。
１２……音声多重識別回路、１３……電圧制御
増幅／電圧制御フイルタ回路、１３ａ……被切換
回路、１３ｃ，１３ｄ……ＮＡＮＤ回路。
FIG. 1 is a circuit diagram showing an embodiment of a TV audio multiplex tuner according to the present invention, and FIG. 2 is a circuit diagram of a conventional TV audio multiplex tuner. 12...Audio multiplex identification circuit, 13...Voltage control amplification/voltage control filter circuit, 13a...Switched circuit, 13c, 13d...NAND circuit.
Claims (1)
ド、モノラルモードを指定する信号を出力する音
声多重識別回路と、 該音声多重識別回路からの信号により動作が切
換えられる被切換回路と、 前記音声多重識別回路からの信号が音声多重モ
ードを指定する信号とモノラルモードを指定する
信号との間で変わつたとき前記被切換回路の動作
の一部又は全部を前の状態に保持する手段とを備
えることを特徴とするＴＶ音声多重チユーナ。 (2) 前記被切換回路は、音声多重モードに応じ
て副信号に対する周波数特性が切換えられる回路
であ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ＴＶ音声多重チユーナ。 (3) 前記音声多重モードはステレオモードと二
重音声モードから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ＴＶ音声多重チユ
ーナ。 (4) 前記被切換回路は、入力電界の状態に応じ
てステレオモード時に副信号の全帯域を連続的に
減衰させ、二重音声モード時に副信号の高域のみ
を連続的に減衰させる動作を行う回路であること
を特徴とする実用新案登録請求の範囲第(3)項記
載のＴＶ音声多重チユーナ。[Claims for Utility Model Registration] (1) An audio multiplex identification circuit that identifies an audio multiplex identification signal and outputs a signal specifying audio multiplex mode or monaural mode, and whose operation is switched by the signal from the audio multiplex identification circuit. and when the signal from the audio multiplex identification circuit changes between a signal specifying the audio multiplex mode and a signal specifying the monaural mode, part or all of the operation of the switched circuit is changed from the previous one. 1. A TV audio multiplex tuner, comprising means for maintaining the state. (2) The TV audio multiplex tuner according to claim 1, wherein the switched circuit is a circuit whose frequency characteristics for sub-signals are switched according to the audio multiplex mode. (3) The TV audio multiplex tuner according to claim 1, wherein the audio multiplex mode consists of a stereo mode and a dual audio mode. (4) The switched circuit operates to continuously attenuate the entire band of the sub signal in stereo mode and to continuously attenuate only the high frequency band of the sub signal in dual audio mode, depending on the state of the input electric field. A TV audio multiplex tuner according to claim (3) of the utility model registration claim, characterized in that the TV audio multiplex tuner is a circuit that performs the following.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11364485U JPS6224575U (en) | 1985-07-26 | 1985-07-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11364485U JPS6224575U (en) | 1985-07-26 | 1985-07-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6224575U true JPS6224575U (en) | 1987-02-14 |
Family
ID=30995643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11364485U Pending JPS6224575U (en) | 1985-07-26 | 1985-07-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6224575U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5825781A (en) * | 1981-08-07 | 1983-02-16 | Mitsubishi Electric Corp | Television sound multiplex receiver |
-
1985
- 1985-07-26 JP JP11364485U patent/JPS6224575U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5825781A (en) * | 1981-08-07 | 1983-02-16 | Mitsubishi Electric Corp | Television sound multiplex receiver |
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