KR840008188A - Keyboard interface system - Google Patents

Keyboard interface system Download PDF

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Publication number
KR840008188A
KR840008188A KR1019830005319A KR830005319A KR840008188A KR 840008188 A KR840008188 A KR 840008188A KR 1019830005319 A KR1019830005319 A KR 1019830005319A KR 830005319 A KR830005319 A KR 830005319A KR 840008188 A KR840008188 A KR 840008188A
Authority
KR
South Korea
Prior art keywords
keyboard
frame
data processing
response
signal
Prior art date
Application number
KR1019830005319A
Other languages
Korean (ko)
Other versions
KR870000170B1 (en
Inventor
도시오 스즈끼 (외 2)
Original Assignee
제이. 에이취. 그래디
인터내셔널 비지네스 머신즈 코포레이션
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 제이. 에이취. 그래디, 인터내셔널 비지네스 머신즈 코포레이션 filed Critical 제이. 에이취. 그래디
Publication of KR840008188A publication Critical patent/KR840008188A/en
Application granted granted Critical
Publication of KR870000170B1 publication Critical patent/KR870000170B1/en

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Classifications

    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Input From Keyboards Or The Like (AREA)
  • Communication Control (AREA)

Abstract

내용 없음.No content.

Description

키보드 인터페이스 시스템Keyboard interface system

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

제1도는 본 발명의 구성을 도시하는 블럭도.1 is a block diagram showing a configuration of the present invention.

제2도는 본 발명의 실시예를 도시하는 도면.2 shows an embodiment of the invention.

제4도는 제2도의 실시예에 있어서 프로그램 플로우 챠트도.4 is a program flow chart in the embodiment of FIG.

Claims (2)

키보드와 데이타처리 유니트를, 키보드클럭신호를 전송하는 클럭선과 키를 표시하는 키주사 코드를 포함하는 직렬 프레임 비트를 상기 클럭신호와 동기하여 직렬로 전송하는 데이타선을 통하여 접속한 데이타 처리 장치용 키보드 인터페이스 시스템으로서, 상기 데이타처리 유니트와 관련해서 설치되고 상기 클럭신호에 응답하여 수신비트수를 카운트하는 카운트수단과, 상기 데이타처리 유니트와 관련해서 설치되고 상기 카운트 수단이 1프레임의 예정비트수에 같은 수만 카운트한 것에 응답하여 1프레임의 비트의 수신을 표시하는 상태신호를 상기 데이타 선에 인가하는 수단과, 상기 키보드와 관련하여 설치되고 1프레임의 전송이 완료되기 전에 상기 상태 신호를 수취하였을 시 상기 클럭선에 부정 응답신호를 인가하는 수단과, 상기 키보드와 관력하여 설치되며 상기 부정응답신호에 응답하여 동일 프레임의 키 주사 코드를 재전송하는 수단을 구비하고 있는 것을 특징으로 하는 직렬 키보드 인터페이스 시스템.A keyboard for a data processing apparatus in which a keyboard and a data processing unit are connected through a data line for serially transmitting a serial frame bit including a clock line for transmitting a keyboard clock signal and a key scanning code for displaying a key, in synchronization with the clock signal. An interface system, comprising: counting means provided in association with said data processing unit and counting the number of received bits in response to said clock signal, and installed in association with said data processing unit and said counting means being equal to a predetermined number of bits in one frame. Means for applying to said data line a status signal indicative of the reception of one frame of bits in response to a count of only a few; and upon receipt of said status signal before transmission of one frame is completed in connection with said keyboard; Means for applying a negative response signal to a clock line; Serial keyboard interface system to be installed, it characterized in that the means for redirecting the key scan code of the same frame in response to said negative acknowledgment signal. ※ 참고사항 : 최초출원 내용에 의하여 공개한 것임.※ Note: The disclosure is based on the initial application.
KR1019830005319A 1983-03-11 1983-11-09 Keyboard interface system KR870000170B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP58039326A JPS59165125A (en) 1983-03-11 1983-03-11 Keyboard interface system
JP39326 1983-03-11
JP83-39326 1983-03-11

Publications (2)

Publication Number Publication Date
KR840008188A true KR840008188A (en) 1984-12-13
KR870000170B1 KR870000170B1 (en) 1987-02-13

Family

ID=12549968

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019830005319A KR870000170B1 (en) 1983-03-11 1983-11-09 Keyboard interface system

Country Status (5)

Country Link
JP (1) JPS59165125A (en)
KR (1) KR870000170B1 (en)
AU (1) AU556911B2 (en)
BR (1) BR8401004A (en)
CA (1) CA1205206A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NZ214078A (en) * 1984-11-10 1988-08-30 Int Computers Ltd Keyboard subset powered by standby source during mains failure

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4460957A (en) * 1981-08-12 1984-07-17 International Business Machines Corporation Self-pacing serial keyboard interface for data processing system

Also Published As

Publication number Publication date
BR8401004A (en) 1984-10-16
JPS59165125A (en) 1984-09-18
AU556911B2 (en) 1986-11-27
CA1205206A (en) 1986-05-27
JPH0312728B2 (en) 1991-02-20
AU2527484A (en) 1984-09-13
KR870000170B1 (en) 1987-02-13

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