JPS5552989A - Calendar indicating system - Google Patents

Abstract

PURPOSE: To readily indicate the calendar of every week by indicating the initial and last days of the month in the initial and last week of the month or only symbol on an indicator with more than 8 digits.

CONSTITUTION: An arithmetic circuit 10 counts the initial day of the week and the last day of the month on the basis of the stored data in an M register 4 according to the depression of an input unit 1. A controller 3 controls the counting up of +1 in the counter 6 and a date counter 7 and storage of the counted values of the counters 6, 7 in indication registers 15 to thus indicate the calender of every week on an indicator with more than 8 digits. When the counted value of the counter 7 becomes coincident to the counted value of the initial and last days of the month in an initial day circuit 1 and last day circuit 10, a coincident output is generated from a coincident circuit 5 to control through the controller 3 an input gate circuit 14 to thus indicate only the initial and last days or special code on the indicator 2 but vacant on the other digits so that the initial and last days of the month can be readily visible on the calender indication of every week by a micro-computer.

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