JPS5413221A - Key input system - Google Patents

Key input system

Info

Publication number
JPS5413221A
JPS5413221A JP7872477A JP7872477A JPS5413221A JP S5413221 A JPS5413221 A JP S5413221A JP 7872477 A JP7872477 A JP 7872477A JP 7872477 A JP7872477 A JP 7872477A JP S5413221 A JPS5413221 A JP S5413221A
Authority
JP
Japan
Prior art keywords
key input
input system
input keys
operating
numerals
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
JP7872477A
Other languages
Japanese (ja)
Inventor
Yoshio Kaneko
Yutaka Ida
Yuji Fukushima
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP7872477A priority Critical patent/JPS5413221A/en
Publication of JPS5413221A publication Critical patent/JPS5413221A/en
Pending legal-status Critical Current

Links

Landscapes

  • Calculators And Similar Devices (AREA)
  • Input From Keyboards Or The Like (AREA)

Abstract

PURPOSE: To perform a number of operating functions with less number of input keys, by providing the second symbol different from the first symbol corresponding to the numerals and symbols given to a plurality of input keys and operating those input keys with combination.
COPYRIGHT: (C)1979,JPO&Japio
JP7872477A 1977-07-01 1977-07-01 Key input system Pending JPS5413221A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7872477A JPS5413221A (en) 1977-07-01 1977-07-01 Key input system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7872477A JPS5413221A (en) 1977-07-01 1977-07-01 Key input system

Publications (1)

Publication Number Publication Date
JPS5413221A true JPS5413221A (en) 1979-01-31

Family

ID=13669820

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7872477A Pending JPS5413221A (en) 1977-07-01 1977-07-01 Key input system

Country Status (1)

Country Link
JP (1) JPS5413221A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4833446A (en) * 1979-11-21 1989-05-23 Ergoplic Ltd. Keyboard apparatus and method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4833446A (en) * 1979-11-21 1989-05-23 Ergoplic Ltd. Keyboard apparatus and method

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