JPS5296826A - Input unit - Google Patents

Input unit

Info

Publication number
JPS5296826A
JPS5296826A JP1306776A JP1306776A JPS5296826A JP S5296826 A JPS5296826 A JP S5296826A JP 1306776 A JP1306776 A JP 1306776A JP 1306776 A JP1306776 A JP 1306776A JP S5296826 A JPS5296826 A JP S5296826A
Authority
JP
Japan
Prior art keywords
input unit
light receiving
receiving elements
group
elements
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.)
Pending
Application number
JP1306776A
Other languages
Japanese (ja)
Inventor
Minoru Aoki
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.)
Ricoh Co Ltd
Original Assignee
Ricoh Co 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP1306776A priority Critical patent/JPS5296826A/en
Publication of JPS5296826A publication Critical patent/JPS5296826A/en
Pending legal-status Critical Current

Links

Landscapes

  • Input From Keyboards Or The Like (AREA)

Abstract

PURPOSE: To enable low cost and highly reliable input unit with simple configuration, by reducing the number of light emitting elements and light receiving elements in comparison with the number of information able to be put in, so that the first group of light receiving elements is reflected to the second group of light receiving elements with the reflecting material.
COPYRIGHT: (C)1977,JPO&Japio
JP1306776A 1976-02-09 1976-02-09 Input unit Pending JPS5296826A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1306776A JPS5296826A (en) 1976-02-09 1976-02-09 Input unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1306776A JPS5296826A (en) 1976-02-09 1976-02-09 Input unit

Publications (1)

Publication Number Publication Date
JPS5296826A true JPS5296826A (en) 1977-08-15

Family

ID=11822784

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1306776A Pending JPS5296826A (en) 1976-02-09 1976-02-09 Input unit

Country Status (1)

Country Link
JP (1) JPS5296826A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57148251U (en) * 1981-03-13 1982-09-17
JPH03109627A (en) * 1989-09-22 1991-05-09 Tsuoisu Kk Method and device for discriminating pushed key of keyboard

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57148251U (en) * 1981-03-13 1982-09-17
JPH03109627A (en) * 1989-09-22 1991-05-09 Tsuoisu Kk Method and device for discriminating pushed key of keyboard

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