JPH0461985U - - Google Patents
Info
- Publication number
- JPH0461985U JPH0461985U JP10449490U JP10449490U JPH0461985U JP H0461985 U JPH0461985 U JP H0461985U JP 10449490 U JP10449490 U JP 10449490U JP 10449490 U JP10449490 U JP 10449490U JP H0461985 U JPH0461985 U JP H0461985U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- audio
- television
- output
- converter
- 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 2
- 238000000034 method Methods 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Television Receiver Circuits (AREA)
- Color Television Systems (AREA)
Description
第１図は本考案に係るマルチシステム受信回路
の一実施例を示すブロツク図、第２図は従来のマ
ルチシステム受信回路を示すブロツク図である。
１２，２０……ＢＰＦ、１３……ＳＩＦコンバ
ータ、１４……音声切換スイツチ、１５……音声
検波回路、７，１９……周波数特性補正回路。
FIG. 1 is a block diagram showing an embodiment of a multi-system receiving circuit according to the present invention, and FIG. 2 is a block diagram showing a conventional multi-system receiving circuit. 12, 20...BPF, 13...SIF converter, 14...Audio selection switch, 15...Audio detection circuit, 7, 19...Frequency characteristic correction circuit.
Claims (1)
式のテレビジヨン信号と前記搬送周波数とは異な
る搬送周波数を有する色信号を含む第２の方式の
テレビジヨン信号を受信可能なマルチシステム受
信回路において、 前記第２の方式のテレビジヨン信号の映像信号
に含まれる音声インターキヤリア信号を通過させ
る第１の帯域通過フイルタと、 この第１の帯域通過フイルタからの第２の方式
の音声インターキヤリア信号を所定の周波数に変
換するコンバータと、 前記第２のテレビジヨン方式の映像信号の色信
号帯域を増幅して周波数特性を補正する周波数特
性補正回路と、 この周波数特性補正回路からの映像信号に含ま
れる前記第１の方式のテレビジヨン信号の音声イ
ンターキヤリア信号成分を通過させる第２の帯域
通過フイルタと、 前記コンバータの出力と前記第２の帯域通過フ
イルタの出力との一方を選択的に出力する音声切
換スイツチと、 この音声切換スイツチの出力を検波する音声検
波回路とを具備したことを特徴とするマルチシス
テム受信回路。[Claims for Utility Model Registration] Receiving a television signal of a first method including a color signal having a predetermined carrier frequency and a television signal of a second method including a color signal having a carrier frequency different from the carrier frequency. A possible multi-system receiving circuit includes: a first bandpass filter that passes an audio intercarrier signal included in a video signal of the television signal of the second method; a converter that converts an audio intercarrier signal of the second television system to a predetermined frequency; a frequency characteristic correction circuit that amplifies the color signal band of the video signal of the second television system and corrects the frequency characteristic; and the frequency characteristic correction circuit. a second bandpass filter that passes an audio intercarrier signal component of the television signal of the first system included in the video signal from the converter; and one of the output of the converter and the output of the second bandpass filter. What is claimed is: 1. A multi-system receiving circuit comprising: an audio selector switch that selectively outputs the output of the audio selector switch; and an audio detection circuit that detects the output of the audio selector switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10449490U JPH0461985U (en) | 1990-10-05 | 1990-10-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10449490U JPH0461985U (en) | 1990-10-05 | 1990-10-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0461985U true JPH0461985U (en) | 1992-05-27 |
Family
ID=31849791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10449490U Pending JPH0461985U (en) | 1990-10-05 | 1990-10-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0461985U (en) |
-
1990
- 1990-10-05 JP JP10449490U patent/JPH0461985U/ja active Pending
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