Hand display-type electronic timepiece

Details Hand display-type electronic timepiece Hand display-type electronic timepiece

1996-12-05

2000-06-06

Roskoski, Bernard

Horology: time measuring systems or devices

Chronological

With mechanical or electromechanical driven display

368187, 368204, G04B 1904

Patent

active

060727527

ABSTRACT:
To provide a hand display-type electronic timepiece which is simply constructed, enables the manufacturer or the user of the analog electronic timepiece to easily and correctly accomplish synchronism between the hands and the timing counter, and does not require an operation for bringing the hands and the timing counter into synchronism when the cell is renewed by the user, eliminating the problems inherent in the aforementioned prior art. That is, in a hand display-type electronic timepiece 1 constituted by a cell 2, a time signal generating means 10, a motor drive control means 25, a pulse motor drive means 17, a pulse motor 18, hands 19 driven by the pulse motor, and a hand position data generating means 3 which generates hand position data corresponding to the hands, and in which the drive control of the hands is executed according to the data from the hand position data generating means 3, an analog hand display-type electronic timepiece further comprises a hand drive stop means 11 which stops the hands 19 and the hand position data generating means 3 under the condition in which synchronism is maintained therebetween, a nonvolatile memory 4 for storing hand position data generated from the hand position data generating means 3, a hand drive data control means 5 which controls the nonvolatile memory 4 and the hand drive stop means 11, and a data storage instruction means 6 which operates the control means 5, wherein in response to an instruction signal from the data storage instruction means 6, the hand drive stop means 11 stops the hands 19, and the hand drive data control means 5 writes the data stored in the hand position data generating means 3 into the nonvolatile memory 4.

REFERENCES:
patent: 5280459 (1994-01-01), Nakamura

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