Title:
ALARM TONE CONTROLLING SYSTEM
Document Type and Number:
Japanese Patent JPS56145440
Kind Code:
A
Abstract:
PURPOSE:To control an alarm tone securely by a miniature electronic equipment equipped with the functions of a timepiece, without increasing the number of operation keys, by providing a generating and controlling means capable of setting either secondary state through the operation of an alarm-data setting alarm key and by controlling alarm information according to the set state of the means. CONSTITUTION:Key input part 11 of a miniature electronic equipment with the functions of a timepiece is provided with alarm key 14 for setting alarm data, mode selection switch 16 for assigning selectively the arithmetic mode and alarm setting mode, etc. Through the operation of key 14, alarm information signal (f) and trigger signal CK are outputted from instruction decoder 22 and when the alarm time coincides with the current time, a coincidence signal is outputted to exercise on-off control over sounding body 30 via AND circuit 29. According to the state of decoder 22, the on-off set state of alarm information is displayed on liquid-crystal display device 26 via binary counter 27 and display driving part 25.
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Inventors:
YANAGAWA MIKIO
Application Number:
JP4930580A
Publication Date:
November 12, 1981
Filing Date:
April 15, 1980
Export Citation:
Assignee:
CASIO COMPUTER CO LTD
International Classes:
G06F15/02; G04G13/02; G06F3/02; G06F9/48; H03G3/02; (IPC1-7): G06F3/02; G06F15/02; H03G3/00