JPH0221982U - - Google Patents
Info
- Publication number
- JPH0221982U JPH0221982U JP1988100199U JP10019988U JPH0221982U JP H0221982 U JPH0221982 U JP H0221982U JP 1988100199 U JP1988100199 U JP 1988100199U JP 10019988 U JP10019988 U JP 10019988U JP H0221982 U JPH0221982 U JP H0221982U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- video
- receiver
- separated
- 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
- 230000005236 sound signal Effects 0.000 claims description 6
- 239000002131 composite material Substances 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 6
- 238000000926 separation method Methods 0.000 description 4
- 230000001360 synchronised effect Effects 0.000 description 2
Description
第１図は本考案の実施例を示す映像音声切り換
え装置を用いた構成図、第２図は同同期分離回路
の電気回路図、第３図は同同期分離回路の入出力
信号波形図、第４図は他の実施例を示す構成図、
第５図は同第４図における主要部分の電気回路図
、第６図は第４図の各部における波形図である。
同図中、１は映像音声信号切り換え装置、２は
映像信号切り換えスイツチ、３はＴＶ複合映像信
号、４は同期分離回路、５は分離した同期信号、
１０は同期信号遅延回路、１２はカラーバースト
信号分離回路、２１はＴＶ受像機、２４は映像回
路、２５は同期・偏向回路、２９はＶＴＲ、３０
はＣＤプレーヤ、３１はテープレコーダである。
Fig. 1 is a configuration diagram using a video/audio switching device showing an embodiment of the present invention, Fig. 2 is an electric circuit diagram of the synchronous separation circuit, Fig. 3 is an input/output signal waveform diagram of the synchronous separation circuit, Figure 4 is a configuration diagram showing another embodiment,
FIG. 5 is an electric circuit diagram of the main parts in FIG. 4, and FIG. 6 is a waveform diagram of each part in FIG. 4. In the figure, 1 is a video/audio signal switching device, 2 is a video signal changeover switch, 3 is a TV composite video signal, 4 is a synchronization separation circuit, 5 is a separated synchronization signal,
10 is a synchronization signal delay circuit, 12 is a color burst signal separation circuit, 21 is a TV receiver, 24 is a video circuit, 25 is a synchronization/deflection circuit, 29 is a VTR, 30
is a CD player, and 31 is a tape recorder.
Claims (1)
声信号切り換え装置において、同ＴＶ受像機以外
から音声信号を入力し、同音声信号を同ＴＶ受像
機の音声回路に供給する一方、ＴＶ放送等の複合
映像信号を得、同複合映像信号から同期信号を分
離し、同分離した同期信号を同ＴＶ受像機の映像
回路および同期・偏向回路に供給するようにした
ことを特徴とする映像音声信号切り換え装置。 (2) 前記複合映像信号からカラーバースト信号
を分離し、前記分離した同期信号に合成したこと
を特徴とする請求項(1)記載の映像音声信号切り
換え装置。[Scope of Claim for Utility Model Registration] (1) In a video/audio signal switching device used in combination with a TV receiver, an audio signal is input from a source other than the TV receiver, and the audio signal is sent to the audio circuit of the TV receiver. At the same time, a composite video signal such as TV broadcasting is obtained, a synchronization signal is separated from the composite video signal, and the separated synchronization signal is supplied to the video circuit and synchronization/deflection circuit of the TV receiver. A video/audio signal switching device characterized by: (2) The video/audio signal switching device according to claim (1), wherein a color burst signal is separated from the composite video signal and combined with the separated synchronization signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988100199U JPH0221982U (en) | 1988-07-28 | 1988-07-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988100199U JPH0221982U (en) | 1988-07-28 | 1988-07-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0221982U true JPH0221982U (en) | 1990-02-14 |
Family
ID=31328061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988100199U Pending JPH0221982U (en) | 1988-07-28 | 1988-07-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0221982U (en) |
-
1988
- 1988-07-28 JP JP1988100199U patent/JPH0221982U/ja active Pending
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