Electronic device with calendar function

Details Electronic device with calendar function Electronic device with calendar function

1988-09-01

1990-10-16

Harkcom, Gary V.

Boots, shoes, and leggings

G06F 1516

Patent

active

049640720

ABSTRACT:
An electronic device with calendar function includes a timer for supplying a carry signal for every 24 hours in response to a clock signal and a date counter for counting the carry signal. A central processing unit (CPU) reads out the calendar data stored in a memory and adds the content of the date counter to the calendar data so as to perform the processing such as the updating process of year, month and date and the updating process for the leap year, when the CPU is operated in response to the start operation by provision of a keyboard or a reader/writer to which the electronic device is connected.

REFERENCES:
patent: 4193255 (1980-03-01), Ebihara et al.
patent: 4240150 (1980-12-01), Ebihara et al.
patent: 4303995 (1981-12-01), Aizawa

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