KR930005354A - Key matrix control circuit - Google Patents

Key matrix control circuit Download PDF

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Publication number
KR930005354A
KR930005354A KR1019910014610A KR910014610A KR930005354A KR 930005354 A KR930005354 A KR 930005354A KR 1019910014610 A KR1019910014610 A KR 1019910014610A KR 910014610 A KR910014610 A KR 910014610A KR 930005354 A KR930005354 A KR 930005354A
Authority
KR
South Korea
Prior art keywords
switching
signal
key
micom
lock function
Prior art date
Application number
KR1019910014610A
Other languages
Korean (ko)
Other versions
KR940001509B1 (en
Inventor
백동철
Original Assignee
강진구
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.)
Filing date
Publication date
Application filed by 강진구, 삼성전자 주식회사 filed Critical 강진구
Priority to KR1019910014610A priority Critical patent/KR940001509B1/en
Priority to JP4224218A priority patent/JPH0646337A/en
Publication of KR930005354A publication Critical patent/KR930005354A/en
Application granted granted Critical
Publication of KR940001509B1 publication Critical patent/KR940001509B1/en

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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M11/00—Coding in connection with keyboards or like devices, i.e. coding of the position of operated keys
    • H03M11/02—Details
    • H03M11/04—Coding of multifunction keys
    • H03M11/14—Coding of multifunction keys by using additional keys, e.g. shift keys, which determine the function performed by the multifunction key
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
    • G06F3/023—Arrangements for converting discrete items of information into a coded form, e.g. arrangements for interpreting keyboard generated codes as alphanumeric codes, operand codes or instruction codes

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Selective Calling Equipment (AREA)
  • Lock And Its Accessories (AREA)
  • Studio Circuits (AREA)
  • Details Of Television Systems (AREA)

Abstract

내용 없음.No content.

Description

키메트릭스 제어회로Key matrix control circuit

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

제2도는 이 발명에 따른 키메트릭스 제어회로의 블럭도이다.2 is a block diagram of a key matrix control circuit according to the present invention.

Claims (3)

구동키애 따라 각종 제어신호 및 록기능방지신호를 송신하는 송신부와, 입력되는 키스켄펄스를 이용하여 눌려진 키를 탐지하고, 눌려진 키에 따른 각종 제어신호를 출력하는 키메트릭스와, 상기 키메트릭스 및 수신부에 연결되며, 키스켄 펄스를 출력하고 입력되는 제어신호에 따른 제어데이타를 출력하며, 록기능 방지신호에 따른 록기능 방지 표시신호 및 스위칭 신호를 출력하는 마이콤과, 상기 마이콤에 연결되며, 록기능 방지 표시신호 및 스위칭 신호를 출력하는 마이콤과, 상기 마이콤에 연결되며, 록기능 방지 표시신호에 따라 록기능 방지신호 입력을 표시하는 표시부와, 상기 마이콤 및 키메트릭스 사이에 연결되며, 상기 마이콤의 스위칭 신호에 따라 상기 마이콤으로부터 상기 키메트릭스에 키스캔 펄스가 인가되는 것을 제어하는 스위칭 회로와, 로 구성된 키메트릭스 제어회로.A transmission unit for transmitting various control signals and lock function prevention signals according to the driving keys, key metrics for detecting a pressed key using an input key Ken pulse, and outputting various control signals according to the pressed keys, the key metrics and the receiving unit It is connected to the microcomputer outputs the Kisken pulse and outputs the control data according to the input control signal, and outputs the lock function prevention display signal and the switching signal according to the lock function prevention signal, and is connected to the micom, the lock function A micom for outputting a protection display signal and a switching signal, a display unit connected to the micom, and a display unit for displaying a lock function prevention signal input according to the lock function prevention display signal, and connected between the micom and key metrics, and switching of the micom. A switching cycle for controlling the application of a kisscan pulse from the micom to the key metrics according to a signal A key matrix control circuit consisting of a and. 제1항에 있어서, 상기 스위칭 회로는 상기 마이콤에 연결되며, 상기 스위칭 신호에 따라 구동하는 제1스위칭부와, 상기 제1스위칭부 및 키메트릭스 사이에 연결되며, 상기 제1스위칭부의 구동에 따라, 스위칭되어 상기 키메트릭스로부터 상기 키메트릭스에 키스캔펄스가 인가되는 것을 제어하는 다수의 스위치로 되는 제2스위칭부와, 로 구성되는 키메트릭스 제어회로.The switching circuit of claim 1, wherein the switching circuit is connected to the microcomputer and is connected between a first switching unit driving according to the switching signal, the first switching unit and a key matrix, and according to the driving of the first switching unit. And a second switching unit which is switched to be a plurality of switches for controlling the application of the kisscan pulse from the key metrics to the key metrics. 제2항에 있어서, 상기 제1스위칭부는 상기 마이콤에 연결되는 스위칭용 트랜지스터로 구성되는 키메트릭스 제어회로.The key matrix control circuit of claim 2, wherein the first switching unit comprises a switching transistor connected to the microcomputer. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019910014610A 1991-08-23 1991-08-23 Key matrix control circuit KR940001509B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1019910014610A KR940001509B1 (en) 1991-08-23 1991-08-23 Key matrix control circuit
JP4224218A JPH0646337A (en) 1991-08-23 1992-08-24 Key matrix control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019910014610A KR940001509B1 (en) 1991-08-23 1991-08-23 Key matrix control circuit

Publications (2)

Publication Number Publication Date
KR930005354A true KR930005354A (en) 1993-03-23
KR940001509B1 KR940001509B1 (en) 1994-02-23

Family

ID=19318993

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019910014610A KR940001509B1 (en) 1991-08-23 1991-08-23 Key matrix control circuit

Country Status (2)

Country Link
JP (1) JPH0646337A (en)
KR (1) KR940001509B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6820984B2 (en) 1998-04-09 2004-11-23 Seiko Epson Corporation Projection display device and remote controller

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0376400A (en) * 1989-08-17 1991-04-02 Fujitsu General Ltd Remote control system

Also Published As

Publication number Publication date
KR940001509B1 (en) 1994-02-23
JPH0646337A (en) 1994-02-18

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