JPH0270578U

JPH0270578U -

Info

Publication number: JPH0270578U
Application number: JP1988150253U
Authority: JP
Priority date: 1988-11-17
Filing date: 1988-11-17
Publication date: 1990-05-29

Description

[Brief explanation of drawings]

第１図は本考案信号処理回路の回路構成を示す
図、第２図は第１図の回路で得られる波形図、第
３図は従来の信号処理回路の回路構成を示す回路
図、第４図は第３図の回路で得られる波形図であ
る。１……第１のクリツプ回路、２……第２のクリ
ツプ回路、３……加算回路、Ｔ１〜Ｔ６……トラ
ンジスタ、Ｒ１〜Ｒ５……抵抗、Ａ……差動アン
プ。 FIG. 1 is a diagram showing the circuit configuration of the signal processing circuit of the present invention, FIG. 2 is a waveform diagram obtained by the circuit of FIG. 1, FIG. 3 is a circuit diagram showing the circuit configuration of a conventional signal processing circuit, and FIG. The figure is a waveform diagram obtained by the circuit of FIG. 3. DESCRIPTION OF SYMBOLS 1...First clip circuit, 2...Second clip circuit, 3...Addition circuit, T1-T6...Transistor, R1-R5...Resistor, A...Differential amplifier.

Claims

[Claims for Utility Model Registration] (1) In a signal processing circuit of a video camera that suppresses noise in an image signal obtained from a solid-state image sensor, an image signal that is below a first reference level is clipped and an image signal that is above the reference level is a first clip circuit that outputs an image signal of a second reference level or higher; a second clip circuit that clips an image signal of a second reference level or higher and outputs an image signal of a lower reference level; A video camera characterized by comprising: setting means for setting each of the first and second clip circuits, and addition means for adding the output of the first clip circuit and the output of the second clip circuit. signal processing circuit. (2) A signal processing circuit for a video camera, wherein the first reference level is set higher than the second reference level.