JPS56132633A - Keyboard encoder - Google Patents

Keyboard encoder

Info

Publication number
JPS56132633A
JPS56132633A JP3591480A JP3591480A JPS56132633A JP S56132633 A JPS56132633 A JP S56132633A JP 3591480 A JP3591480 A JP 3591480A JP 3591480 A JP3591480 A JP 3591480A JP S56132633 A JPS56132633 A JP S56132633A
Authority
JP
Japan
Prior art keywords
counter
keying
row line
signal
scanning
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
JP3591480A
Other languages
Japanese (ja)
Other versions
JPS6242290B2 (en
Inventor
Fumiaki Sai
Zenichi Kitao
Toshio Yomo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Omron Corp
Original Assignee
Omron Tateisi Electronics Co
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 Omron Tateisi Electronics Co filed Critical Omron Tateisi Electronics Co
Priority to JP3591480A priority Critical patent/JPS56132633A/en
Publication of JPS56132633A publication Critical patent/JPS56132633A/en
Publication of JPS6242290B2 publication Critical patent/JPS6242290B2/ja
Granted legal-status Critical Current

Links

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
    • H03M11/20—Dynamic coding, i.e. by key scanning

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Input From Keyboards Or The Like (AREA)

Abstract

PURPOSE:To enable to produce the strobe signal in a short keying time, by stopping the scanning in column direction with detected signal on the row line and starting the scanning in column direction, in the keyboard encoder of dynamic type. CONSTITUTION:When the switch S23 connected at the cross point of column line X2 and row line Y3 of the matrix MX is on with keying, the signal displayed on the row line Y3 is detected, the supply of the clock pulse to the counter 2 is stopped and the number of counts 2 is held. Conversely, a clock pulse is inputted to the counter 3 through AND 9 to start counting and produce the pulse strobe signal. The counter 3 keeps count further and when it reaches the count number 0, it stops, and the counter 2 starts operation and it restores the state before the keying.
JP3591480A 1980-03-21 1980-03-21 Keyboard encoder Granted JPS56132633A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3591480A JPS56132633A (en) 1980-03-21 1980-03-21 Keyboard encoder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3591480A JPS56132633A (en) 1980-03-21 1980-03-21 Keyboard encoder

Publications (2)

Publication Number Publication Date
JPS56132633A true JPS56132633A (en) 1981-10-17
JPS6242290B2 JPS6242290B2 (en) 1987-09-08

Family

ID=12455291

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3591480A Granted JPS56132633A (en) 1980-03-21 1980-03-21 Keyboard encoder

Country Status (1)

Country Link
JP (1) JPS56132633A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5858641A (en) * 1981-10-05 1983-04-07 Hitachi Ltd Keyboard device
JPS5953933A (en) * 1982-09-21 1984-03-28 Fujitsu Ltd Coordinate retrieving method of coordinate detecting device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5858641A (en) * 1981-10-05 1983-04-07 Hitachi Ltd Keyboard device
JPH0312329B2 (en) * 1981-10-05 1991-02-20 Hitachi Ltd
JPS5953933A (en) * 1982-09-21 1984-03-28 Fujitsu Ltd Coordinate retrieving method of coordinate detecting device

Also Published As

Publication number Publication date
JPS6242290B2 (en) 1987-09-08

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