KR970004699A - Input signal selector - Google Patents

Input signal selector Download PDF

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Publication number
KR970004699A
KR970004699A KR1019950018124A KR19950018124A KR970004699A KR 970004699 A KR970004699 A KR 970004699A KR 1019950018124 A KR1019950018124 A KR 1019950018124A KR 19950018124 A KR19950018124 A KR 19950018124A KR 970004699 A KR970004699 A KR 970004699A
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KR
South Korea
Prior art keywords
input signal
input
signal
terminals
change request
Prior art date
Application number
KR1019950018124A
Other languages
Korean (ko)
Inventor
백동철
윤흥수
Original Assignee
김광호
삼성전자 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 김광호, 삼성전자 주식회사 filed Critical 김광호
Priority to KR1019950018124A priority Critical patent/KR970004699A/en
Publication of KR970004699A publication Critical patent/KR970004699A/en

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Abstract

신호가 인가되어진 입력단자만을 선택가능한 대상으로 한정시킴으로써 선택의 용이성을 도모하는 개선된 장치가 개시된다.An improved apparatus for facilitating selection by limiting only the input terminal to which a signal is applied to a selectable object is disclosed.

본 발명에 따른 입력신호 선택장치는 입력신호를 유입하기 위해 제공되는 복수의 입력단자; 상기 입력단자들의 신호레벨을 검사하여 해당 입력단자에 입력신호가 인가되어져 있는지의 여부를 검출하는 입력신호 판별부; 입력신호의 변경을 요구하는 신호를 발생하는 입력신호 변경요구스위치; 상기 복수의 입력단자들에 선택적으로 접속되어 접속된 입력단자에 인가되는 입력신호를 출력하는 디멀티플렉서; 및 상기 입력신호 판별부의 판별 결과에 의해 입력신호가 인가되어져 있는 입력단자들을 인식하고, 상기 입력신호 변경요구스위치를 통하여 입력신호의 변경요구가 발생될 때마다 상기 디멀티플렉서를 통하여 입력신호가 인가되어져 있는 입력단자들만이 순차적으로 선택되도록 제어하는 선택제어부를 포함함을 특징으로 한다.The input signal selection device according to the present invention comprises a plurality of input terminals provided for introducing an input signal; An input signal discrimination unit which checks a signal level of the input terminals and detects whether an input signal is applied to the corresponding input terminal; An input signal change request switch for generating a signal for requesting a change in the input signal; A demultiplexer selectively connected to the plurality of input terminals and outputting an input signal applied to the connected input terminals; And recognize the input terminal to which the input signal is applied according to the determination result of the input signal discrimination unit, and input signal is applied through the demultiplexer whenever a change request of the input signal is generated through the input signal change request switch. And a selection controller for controlling only the input terminals to be sequentially selected.

Description

입력신호 선택장치Input signal selector

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

제1도는 본 발명에 따른 입력신호 선택장치의 일실시예를 보이는 블럭도이다.1 is a block diagram showing an embodiment of an input signal selection device according to the present invention.

Claims (1)

복수의 입력단자들을 통하여 입력되는 영상신호들이 선택적으로 입력되게 하는 영상신호처리장치의 입력 신호 선택장치에 있어서, 입력신호를 유입하기 위해 제공되는 복수의 입력단자; 상기 입력단자들의 신호레벨을 검사하여 해당 입력단자에 입력신호가 인가되어져 있는지의 여부를 검출하는 입력신호 판별부; 입력신호의 변경을 요구하는 신호를 발생하는 입력신호 변경요구스위치; 상기 복수의 입력단자들에 선택적으로 접속되어 접속된 입력단자에 인가되는 입력신호를 출력하는 디멀티플렉서; 및 상기 입력신호 판별부의 판별결과에 의해 입력신호가 인가되어져 있는 입력단자들을 인식하고, 상기 입력신호 변경요구스위치를 통하여 입력신호의 변경요구가 발생될 때마다 상기 디멀티플렉서를 통하여 입력신호가 인가되어져 있는 입력단자들만이 순차적으로 선택되도록 제어하는 선택제어부를 포함하는 입력신호 선택장치.An input signal selection apparatus of an image signal processing apparatus for selectively inputting image signals input through a plurality of input terminals, comprising: a plurality of input terminals provided for introducing an input signal; An input signal discrimination unit which checks a signal level of the input terminals and detects whether an input signal is applied to the corresponding input terminal; An input signal change request switch for generating a signal for requesting a change in the input signal; A demultiplexer selectively connected to the plurality of input terminals and outputting an input signal applied to the connected input terminals; And an input terminal to which an input signal is applied according to the determination result of the input signal discrimination unit, and an input signal is applied through the demultiplexer whenever a change request of the input signal is generated through the input signal change request switch. An input signal selection device comprising a selection control unit for controlling only the input terminal to be selected sequentially. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950018124A 1995-06-29 1995-06-29 Input signal selector KR970004699A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950018124A KR970004699A (en) 1995-06-29 1995-06-29 Input signal selector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950018124A KR970004699A (en) 1995-06-29 1995-06-29 Input signal selector

Publications (1)

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KR970004699A true KR970004699A (en) 1997-01-29

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Application Number Title Priority Date Filing Date
KR1019950018124A KR970004699A (en) 1995-06-29 1995-06-29 Input signal selector

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100358372B1 (en) * 2000-10-12 2002-10-25 엘지이노텍 주식회사 A Reference Signal Selecting Device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100358372B1 (en) * 2000-10-12 2002-10-25 엘지이노텍 주식회사 A Reference Signal Selecting Device

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