JPS5617558A - Scanning system for matrix contact information - Google Patents

Scanning system for matrix contact information

Info

Publication number
JPS5617558A
JPS5617558A JP9328379A JP9328379A JPS5617558A JP S5617558 A JPS5617558 A JP S5617558A JP 9328379 A JP9328379 A JP 9328379A JP 9328379 A JP9328379 A JP 9328379A JP S5617558 A JPS5617558 A JP S5617558A
Authority
JP
Japan
Prior art keywords
row
line
readers
drivers
plus
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
JP9328379A
Other languages
Japanese (ja)
Other versions
JPS5928310B2 (en
Inventor
Yukio Uchida
Shozo Nishimura
Kiyoaki Nakayama
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.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP9328379A priority Critical patent/JPS5928310B2/en
Publication of JPS5617558A publication Critical patent/JPS5617558A/en
Publication of JPS5928310B2 publication Critical patent/JPS5928310B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0008—Selecting arrangements using relay selectors in the switching stages
    • H04Q3/0012—Selecting arrangements using relay selectors in the switching stages in which the relays are arranged in a matrix configuration

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Exchange Systems With Centralized Control (AREA)
  • Interface Circuits In Exchanges (AREA)

Abstract

PURPOSE:To reduce the hardware quantity by providing the line drivers plus line readers with every line wiring as well as the row drivers plus row readers with every row wiring each and then driving these units successively and independently. CONSTITUTION:Line drivers 21DO-21DM plus line readers 21RO-21RM are provided at line wirings 12O-12M; while row drivers 22DO-22DN plus row readers 22RO-22RN are provided at row wirings 13O-13N respectively. Then the line drivers 21DO-21DM are driven successively with the row side kept as it is, and the reading is carried out by pairs of readers 21RO-21RM each. Thus the row information is obtained. The same procedure is applied to obtain the line information as well. In such scanning system, no hardware is newly required to realize a small scale and a low cost for the system.
JP9328379A 1979-07-24 1979-07-24 Matrix contact information scanning method Expired JPS5928310B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9328379A JPS5928310B2 (en) 1979-07-24 1979-07-24 Matrix contact information scanning method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9328379A JPS5928310B2 (en) 1979-07-24 1979-07-24 Matrix contact information scanning method

Publications (2)

Publication Number Publication Date
JPS5617558A true JPS5617558A (en) 1981-02-19
JPS5928310B2 JPS5928310B2 (en) 1984-07-12

Family

ID=14078090

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9328379A Expired JPS5928310B2 (en) 1979-07-24 1979-07-24 Matrix contact information scanning method

Country Status (1)

Country Link
JP (1) JPS5928310B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58170297A (en) * 1982-03-31 1983-10-06 Fujitsu Ltd Duplex scanning matrix circuit
JPS62198783U (en) * 1987-06-11 1987-12-17

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58170297A (en) * 1982-03-31 1983-10-06 Fujitsu Ltd Duplex scanning matrix circuit
JPS62198783U (en) * 1987-06-11 1987-12-17

Also Published As

Publication number Publication date
JPS5928310B2 (en) 1984-07-12

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