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JPS5552986A - Calendar information calculating system - Google Patents

Calendar information calculating system

Info

Publication number
JPS5552986A
JPS5552986A JP12590178A JP12590178A JPS5552986A JP S5552986 A JPS5552986 A JP S5552986A JP 12590178 A JP12590178 A JP 12590178A JP 12590178 A JP12590178 A JP 12590178A JP S5552986 A JPS5552986 A JP S5552986A
Authority
JP
Japan
Prior art keywords
month
data
year
day
register
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
JP12590178A
Other languages
Japanese (ja)
Other versions
JPS6329236B2 (en
Inventor
Hisashi Ito
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.)
Casio Computer Co Ltd
Original Assignee
Casio Computer 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 Casio Computer Co Ltd filed Critical Casio Computer Co Ltd
Priority to JP12590178A priority Critical patent/JPS5552986A/en
Publication of JPS5552986A publication Critical patent/JPS5552986A/en
Publication of JPS6329236B2 publication Critical patent/JPS6329236B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Electric Clocks (AREA)
  • Calculators And Similar Devices (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

PURPOSE: To determine the calendar information rapidly under simple control by simultaneously calculating the conversion from month data to day data and the month last day data according to predetermined processing.
CONSTITUTION: Year, month data are loaded from a key input unit to a ROM address unit. A program is read through the ROM to store the year and month responsive to the key inputs in shift registers 18, 21. Then, day data per one day is applied to the register 21 by operating the calendar key at the key input unit. An adder 29 calculates the standard year and month data to convert the data in the register 18 to standard year and month data, and also calculates predetermined number to be added to the flag bits of the shift registers 19, 18 on the basis of the month data thus converted to discriminate the progress of the month according to the existence of the carry signal at the minimum significant bit of the adder 29 to add the number of days in every month through the shift register 20 at the time corresponding to the number of the converted months to the standard value to thereby simultaneously count the number of days and discriminate the end of the month so as to rapidly indicate the calendar indication.
COPYRIGHT: (C)1980,JPO&Japio
JP12590178A 1978-10-13 1978-10-13 Calendar information calculating system Granted JPS5552986A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12590178A JPS5552986A (en) 1978-10-13 1978-10-13 Calendar information calculating system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12590178A JPS5552986A (en) 1978-10-13 1978-10-13 Calendar information calculating system

Publications (2)

Publication Number Publication Date
JPS5552986A true JPS5552986A (en) 1980-04-17
JPS6329236B2 JPS6329236B2 (en) 1988-06-13

Family

ID=14921703

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12590178A Granted JPS5552986A (en) 1978-10-13 1978-10-13 Calendar information calculating system

Country Status (1)

Country Link
JP (1) JPS5552986A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5742563A (en) * 1988-06-03 1998-04-21 Sharp Kabushiki Kaisha Electronic device with calendar function including determining the first week of the year

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5742563A (en) * 1988-06-03 1998-04-21 Sharp Kabushiki Kaisha Electronic device with calendar function including determining the first week of the year

Also Published As

Publication number Publication date
JPS6329236B2 (en) 1988-06-13

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