JPS5988977U

JPS5988977U - Transmission control device for video playback equipment

Info

Publication number: JPS5988977U
Application number: JP18478682U
Authority: JP
Inventors: 加藤　守久
Original assignee: 株式会社東芝
Priority date: 1982-12-08
Filing date: 1982-12-08
Publication date: 1984-06-16

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は米考案に係る映像再生機器の伝送制御装置のブ
ロック図、第２図は第１図の動作を説明するための説明
図、第３図は第１図のＴＶコントロール信号発生回路の
一例を示す回路図、第４図は第１図の制御回路の一例を
示す回路図、第５図は第１図の信号検出回路の一例を示
す回路図である。１′・・・カラーＴＶ受像機、２・・・チューナ、３・
・・映′　像中間周波増幅及び音声中間周波増幅回路、
４・・・ビデオ切換スイッチ、５・・・ビデオ・クロマ
回路、６・・・偏向回路、７・・・ＣＲＴ、ｇ・・・外
部入力端子、９・・・制御回路、１０・・・信号検出回
路、１１・・・ＶＴＲ，１２・・・キーボード、１３・
・・システム・コントロール回路、１４…サーボ・コン
トロール回路、１５・・・ヘッド、１６・・・再生アン
プ、１７・・・ＴＶコントロール信号発生回路、１８・
・・出力端子、Ａ…ＴＶコントロール信号。Figure 1 is a block diagram of a transmission control device for video playback equipment invented in the US, Figure 2 is an explanatory diagram for explaining the operation of Figure 1, and Figure 3 is a diagram of the TV control signal generation circuit of Figure 1. FIG. 4 is a circuit diagram showing an example of the control circuit in FIG. 1, and FIG. 5 is a circuit diagram showing an example of the signal detection circuit in FIG. 1. 1'...Color TV receiver, 2...Tuner, 3.
・・Video intermediate frequency amplification circuit and audio intermediate frequency amplification circuit,
4... Video selection switch, 5... Video chroma circuit, 6... Deflection circuit, 7... CRT, g... External input terminal, 9... Control circuit, 10... Signal Detection circuit, 11... VTR, 12... Keyboard, 13.
...System control circuit, 14...Servo control circuit, 15...Head, 16...Reproduction amplifier, 17...TV control signal generation circuit, 18.
...Output terminal, A...TV control signal.

Claims

[Scope of utility model registration request]

A receiving device that switches between a television signal and an externally input video signal using a switching means, inputs the signal to a video chroma circuit, processes the signal, and reproduces an image; and a receiving device that is connected to the receiving device and receives the video signal. In a device comprising a transmitting side device that sends a signal to a side device, the transmitting side device is provided with a control signal generation circuit that sends out a receiving side control signal prior to the video signal, and the receiving side device receives the control signal. A control circuit detects the signal and creates a signal for controlling the switching of the switching means, and a control circuit detects a signal from the video chroma circuit and identifies the control signal based on the detected signal to prevent malfunction of the control circuit. and a signal detection circuit for eliminating the problem, and when a playback switch of the transmitting device is turned on, the switching means is switched and the video signal is reproduced by the receiving device. Control device.