JPS6454473U - - Google Patents
Info
- Publication number
- JPS6454473U JPS6454473U JP14807387U JP14807387U JPS6454473U JP S6454473 U JPS6454473 U JP S6454473U JP 14807387 U JP14807387 U JP 14807387U JP 14807387 U JP14807387 U JP 14807387U JP S6454473 U JPS6454473 U JP S6454473U
- Authority
- JP
- Japan
- Prior art keywords
- control signal
- audio
- circuit
- demodulator
- turns
- 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
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Television Receiver Circuits (AREA)
Description
第１図はこの考案のＴＶ音声多重復調回路の実
施例を示すブロツク図である。第２図は従来例を
示すブロツク図である。
主要部分の符号の説明、１：ＴＶ音声多重復調
ＩＣ、２：デイエンフアシス回路、３：スイツチ
回路。
FIG. 1 is a block diagram showing an embodiment of the TV audio multiplexing and demodulating circuit of this invention. FIG. 2 is a block diagram showing a conventional example. Explanation of the symbols of the main parts: 1: TV audio multiplexing and demodulating IC, 2: De-emphasis circuit, 3: Switch circuit.
Claims (1)
器へ並列に接続されたデイエンフアシス回路と、
ＴＶ音声多重放送受信の有無を検出し制御信号を
生成出力する制御信号出力回路と、この制御信号
出力回路の制御信号によりＴＶ音声多重放送受信
時はＴＶ音声多重復調器の出力線路をオンし、ま
たＴＶモノラル放送受時はデイエンフアシス回路
の出力線路をオンとするスイツチ回路とを備えた
ことを特徴とするＴＶ音声多重復調回路。 a TV audio multiplexing demodulator; a de-emphasis circuit connected in parallel to the TV audio multiplexing demodulator;
a control signal output circuit that detects the presence or absence of TV audio multiplex broadcast reception and generates and outputs a control signal; a control signal of the control signal output circuit turns on the output line of the TV audio multiplex demodulator when receiving TV audio multiplex broadcast; The TV audio multiplexing and demodulation circuit is also characterized by comprising a switch circuit that turns on the output line of the de-emphasis circuit when receiving TV monaural broadcasting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14807387U JPS6454473U (en) | 1987-09-30 | 1987-09-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14807387U JPS6454473U (en) | 1987-09-30 | 1987-09-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6454473U true JPS6454473U (en) | 1989-04-04 |
Family
ID=31419058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14807387U Pending JPS6454473U (en) | 1987-09-30 | 1987-09-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6454473U (en) |
-
1987
- 1987-09-30 JP JP14807387U patent/JPS6454473U/ja active Pending
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