JPS5876934U

JPS5876934U - signal processing device

Info

Publication number: JPS5876934U
Application number: JP17064181U
Authority: JP
Inventors: 孝一田岸; 新納　正博
Original assignee: 日本電気ホームエレクトロニクス株式会社
Priority date: 1981-11-16
Filing date: 1981-11-16
Publication date: 1983-05-24

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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

図面は本考案の一実施例を示すものであって、第１図は
信号切換装置の回路図、第２図Ａ〜第２図Ｃは回路動作
を説明するための波形図である。なお図面に用いられる符号において、１・・・スイッチ
回路、２・・・第１回路、３・・・スイッチ手段、４・
・・第２回路、ＣＰＵ・・・中央処理装置、ＦＲＯＭｌ
、。ＦＲＯＭ２・・・情報源。The drawings show one embodiment of the present invention, and FIG. 1 is a circuit diagram of a signal switching device, and FIGS. 2A to 2C are waveform diagrams for explaining the circuit operation. In addition, in the symbols used in the drawings, 1... switch circuit, 2... first circuit, 3... switch means, 4...
...Second circuit, CPU...Central processing unit, FROMl
,. FROM2... Information source.

Claims

[Scope of utility model registration request]

Select a central processing unit and one of multiple information sources,
a switch circuit that connects this to the central processing unit; a first circuit that outputs a control signal in response to a connection operation of the switch circuit; and a first circuit that is initially set to a reset state when the power is turned on; a switching means that is inverted to a set state in response to a control signal of the switching means, and an output of the switching means when the power is turned on to open a gate and control the central processing unit to a reset state, and when the switching means is in the set state; and a second circuit that closes the gate and controls the central processing unit to a set state by the output of the signal switching device.