JPS6251296U - - Google Patents

Description

[Brief explanation of the drawing]

FIG. 1 is a circuit diagram of an electronic watch with an alarm according to an embodiment of the present invention. FIG. 2 is a time chart showing the operation of FIG. 1. 6...Current time counter, 12...First memory, 14...First coincidence circuit, 18...Second memory, 20...Second coincidence circuit, 22...Detection circuit, 30... Counter, 58...preset control circuit.

Claims (1)

[Scope of utility model registration request] a current time counter that counts the current time; a first memory that stores a preset alarm time; and a first coincidence circuit that detects coincidence between the current time counted by the current time counter and the alarm time. , a sounding circuit that generates an alarm sound in response to a coincidence signal from the first coincidence circuit; a second memory capable of storing an alarm time; and a time stored in the second memory. a second coincidence circuit that detects coincidence between and the current time; a detection circuit that detects whether coincidence signals from the first and second coincidence circuits are output simultaneously; and a detection circuit that detects whether coincidence signals from the first and second coincidence circuits are output simultaneously; A counter that counts the number of times the coincidence signals from the two coincidence circuits are output simultaneously, and the count value is cleared when the outputs of both coincidence circuits are not output at the same time, and an alarm when the count value of the counter reaches a certain value. a preset control circuit that presets the stored content of the second memory into the first memory after the sound stops, and presets the stored content of the first memory into the second memory when the count content is less than a certain value; An electronic clock with an alarm, characterized in that: