JPS6022075U

JPS6022075U - Beam index type color television receiver

Info

Publication number: JPS6022075U
Application number: JP11265583U
Authority: JP
Inventors: 杉下　正蔵
Original assignee: Sanyo Electric Co Ltd
Current assignee: Sanyo Electric Co Ltd
Priority date: 1983-07-20
Filing date: 1983-07-20
Publication date: 1985-02-15
Also published as: JPH046313Y2

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]

第１図はこの考案のビームインデックス型カラーテレビ
ジョン受像機の１実施例のブロック図、−第２図ａ〜ｐ
は第１図の動作説明用の波形図である。　　　　　　　
　　　− １・・・パルス入力端子、２・・・微分回路、５，１０
　　。・・・１／３分周回路、６・・・単安定マルチバイブレ
ーク、１４・・・比較部、２５・・・デコーダ部、３１
・・・出力部、３０・・・パルス出力端子。（ｋ）□−Fig. 1 is a block diagram of one embodiment of the beam index type color television receiver of this invention; - Fig. 2 a to p
2 is a waveform diagram for explaining the operation of FIG. 1. FIG.
- 1... Pulse input terminal, 2... Differential circuit, 5, 10
. ...1/3 frequency divider circuit, 6... Monostable multi-bi break, 14... Comparison section, 25... Decoder section, 31
... Output section, 30... Pulse output terminal. (k)□-

Claims

[Scope of utility model registration request]

On the inner surface of the face plate of the picture tube, three primary color phosphors in a stripe pattern are arranged repeatedly, and index phosphors in a stripe pattern are arranged repeatedly in a correlation with the three primary color phosphors. forming a phosphor layer portion having a phosphor layer portion, and generating an index optical signal from each index phosphor by sweeping an electron beam emitted from a single electron gun to the phosphor layer portion, and converting the index optical signal into an electrical signal. In a beam index type color television receiver that pulses a converted index signal to form an index pulse signal and controls the irradiation position of the electron beam based on the index pulse signal, pulsing processing that pulses the index signal. a first counting section that outputs a plurality of first counting pulse signals having different phases by counting the pulse signals formed by the processing section; and a retry-enabled first counting section having a time constant shorter than one period of the index pulse signal. When the formed pulse signal is the index pulse signal, it outputs a filter pulse signal having a pulse width shorter than one cycle of the index pulse signal, and when the formed pulse signal is the index pulse signal, the formed pulse signal is shorter than the index pulse signal. a low-pass filter that varies the pulse width of the filter pulse signal to the width of a continuous input period of the noise pulse signal when the noise pulse signal has a short period; and a plurality of second counting pulses having different phases depending on the counting of the filter pulse signals. The second output signal
a counting section, each of the first counting pulse signals and the predetermined second counting pulse signal;
a comparison unit that compares the counted pulse signal with a counted pulse signal, detects a phase change of the formed pulse signal due to the noise pulse signal, and selectively outputs a switching pulse signal from a plurality of output terminals; a decoder section that forms and outputs a plurality of output pulse signals having different phases by a logical operation of the first counting pulse signal and each of the second counting pulse signals; 1. A beam index type color television receiver comprising: an output section that switches output pulse signals and outputs an index valid pulse signal whose phase does not change before and after the noise pulse signal.