JPS6472221A - Electronic calculator - Google Patents

Electronic calculator

Info

Publication number
JPS6472221A
JPS6472221A JP62228986A JP22898687A JPS6472221A JP S6472221 A JPS6472221 A JP S6472221A JP 62228986 A JP62228986 A JP 62228986A JP 22898687 A JP22898687 A JP 22898687A JP S6472221 A JPS6472221 A JP S6472221A
Authority
JP
Japan
Prior art keywords
photodetecting
parts
electronic calculator
input information
electromotive
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
JP62228986A
Other languages
Japanese (ja)
Inventor
Masashi Yonezaki
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.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp filed Critical NEC Corp
Priority to JP62228986A priority Critical patent/JPS6472221A/en
Publication of JPS6472221A publication Critical patent/JPS6472221A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE:To obtain a compact electronic calculator by producing the input information such as the numeric characters, after detection of both photodetecting and non-photodetecting parts. CONSTITUTION:The photoreceiving electromotive parts 11-13 are provided on an electronic calculator together with the electromotive power detecting parts 21-23, a calculation part 30 and a display device 40. The upper surface side of the calculator includes a photodetecting part 100 having the photodetecting holes and a display part 200. When an operator closes one of those holes by his/her finger, the corresponding one of parts 11-13 has no actuation. At the same time, the corresponding one among parts 21-23 stops the transmission of the start signal to the part 30. Thus the part 30 performs an arithmetic operation by defining a fact that no electromotive signal exists as the input information and displays the arithmetic result on the device 40. The operator recognizes the arithmetic result via the part 200. In such a way, the input information such as the numeric characters, are produced with detection of both photodetecting and non-photodetecting parts. Then a compact electronic calculator is obtained.
JP62228986A 1987-09-11 1987-09-11 Electronic calculator Pending JPS6472221A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62228986A JPS6472221A (en) 1987-09-11 1987-09-11 Electronic calculator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62228986A JPS6472221A (en) 1987-09-11 1987-09-11 Electronic calculator

Publications (1)

Publication Number Publication Date
JPS6472221A true JPS6472221A (en) 1989-03-17

Family

ID=16884977

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62228986A Pending JPS6472221A (en) 1987-09-11 1987-09-11 Electronic calculator

Country Status (1)

Country Link
JP (1) JPS6472221A (en)

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