Electronic apparatus having key input means and key activated in

Details Electronic apparatus having key input means and key activated in Electronic apparatus having key input means and key activated in

1990-10-04

1992-08-18

Nguyen, Long T.

Boots, shoes, and leggings

G06F 100

Patent

active

051405393

ABSTRACT:
In electronic apparatus, a central processing unit (CPU) reads a key input, and an operation clock can be supplied to the CPU when processing corresponding to the key input must be performed to substantially reduce electric power consumption for a key input waiting period. The on/off operation of a switch by a key operation is detected even when the operation clock of the CPU is stopped and ON-chattering or OFF-chattering of the switch by the key operation is eliminated.

REFERENCES:
patent: 4479191 (1984-10-01), Nojima et al.
patent: 4598383 (1986-07-01), Leach
patent: 4851987 (1989-07-01), Day

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