KR930018977A - Video mute method using image control PWM port - Google Patents

Video mute method using image control PWM port Download PDF

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Publication number
KR930018977A
KR930018977A KR1019920002417A KR920002417A KR930018977A KR 930018977 A KR930018977 A KR 930018977A KR 1019920002417 A KR1019920002417 A KR 1019920002417A KR 920002417 A KR920002417 A KR 920002417A KR 930018977 A KR930018977 A KR 930018977A
Authority
KR
South Korea
Prior art keywords
video
image control
control pwm
value
pwm port
Prior art date
Application number
KR1019920002417A
Other languages
Korean (ko)
Other versions
KR0143885B1 (en
Inventor
김인수
이상수
Original Assignee
강진구
삼성전자 주식회사
Filing date
Publication date
Application filed by 강진구, 삼성전자 주식회사 filed Critical 강진구
Priority to KR1019920002417A priority Critical patent/KR0143885B1/en
Priority claimed from KR1019920002417A external-priority patent/KR0143885B1/en
Publication of KR930018977A publication Critical patent/KR930018977A/en
Application granted granted Critical
Publication of KR0143885B1 publication Critical patent/KR0143885B1/en

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Abstract

비디오 카세트 레코더 또는 칼라텔레비젼의 체널선국시 비디오를 뮤팅하기 위한 방법이 기술되는바, 이는 비디오 뮤트포트를 따로 두지 않고 화상제어에 관련된 PWM포트를 로우로 함으로써 비디오 뮤트를 할수 있게된다.A method for muting video during channel tuning of a video cassette recorder or color television is described, which allows video muting by lowering the PWM port related to image control without leaving the video mute port aside.

Description

화상제어 PWM포트를 이용한 비디오 뮤트방법Video mute method using image control PWM port

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 종래기술에 따른 비디오 뮤트회로.1 is a video mute circuit according to the prior art.

제2도는 본 발명에 따른 비디오 뮤트회로.2 is a video mute circuit according to the present invention.

제3도는 주파수 동조방식 시스템의 비디오 뮤트를 위한 제어 플로우 챠트,3 is a control flow chart for video muting of a frequency tuning system,

제4도는 전압 동조방식 시스템의 비디오 뮤트를 위한 제어플로우 챠트이다.4 is a control flow chart for video muting of a voltage tuned system.

Claims (2)

채널가변키이 입력시 현재의 화상제어용 PWM값들을 세이브하고, 상기의 세이브된 화상 제어용 PWM포트를 로우 상태로 출력시켜 비디오를 뮤팅시키며, 상기의 뮤팅시 선택된 채널의 PLL 데이터 값을 출력시킨뒤 소정의 시간동안 카운트를 시작하고, 상기의 시간완료후 상기의 세이브된 화상제어용 PWH값을 출력시켜 뮤팅되었던 비디오를 제어하는 단계를 포함함을 특징으로 하는 화상제어 PWM포트를 이용한 비디오 뮤팅방법.When the channel variable key is input, it saves the current image control PWM values, outputs the saved image control PWM port to a low state, mutes the video, and outputs the PLL data value of the selected channel during the muting operation. Starting counting for a time, and outputting the saved PWH value for controlling the video after the completion of the time to control the muted video. 채널가변키이 입력시 현재의 화상제어용 PWM값들을 세이브하고, 상기의 세이브된 화상제어용 PWM 포트를 로우상태로 출력시켜 비디오를 뮤팅시키며, 상기의 뮤팅시 선택된 채널의 동조전압(Vt)값을 출력시킨뒤 자동 주파수를 튜닝을 시작하고, 상기의 튜닝완료후 상기의 세이브된 화상 제어용 PWM값을 출력시켜 뮤팅되었던 비디오를 제어하는 단계를 포함함을 특징으로 하는 화상제어 PWM 포트를 이용한 비디오 뮤팅방법.Saves the current image control PWM values when the channel variable key is input, mutes the video by outputting the saved image control PWM port in a low state, and outputs the tuning voltage (Vt) value of the selected channel during the muting. And starting the automatic frequency tuning, and outputting the saved image control PWM value after the tuning is completed to control the muted video. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019920002417A 1992-02-18 1992-02-18 Video muting method by using image control pwm port KR0143885B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019920002417A KR0143885B1 (en) 1992-02-18 1992-02-18 Video muting method by using image control pwm port

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019920002417A KR0143885B1 (en) 1992-02-18 1992-02-18 Video muting method by using image control pwm port

Publications (2)

Publication Number Publication Date
KR930018977A true KR930018977A (en) 1993-09-22
KR0143885B1 KR0143885B1 (en) 1998-07-15

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KR1019920002417A KR0143885B1 (en) 1992-02-18 1992-02-18 Video muting method by using image control pwm port

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KR20160022096A (en) 2014-08-19 2016-02-29 삼성전자주식회사 apparatus and method for checking that a main controller and a sub unit are connected

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