Title:
A method for examining speed of a quartz watch
Document Type and Number:
Japanese Patent JP6251356
Kind Code:
B2
Abstract:
The method for test the rate of an electronic watch with a time base device (1) comprises three main steps for the test on test equipment. The time base device comprises at least one watch module (2) with a resonator (3) connected to an oscillator of an electronic circuit (4), which is followed by a divider circuit, which is controlled by an inhibition circuit, and which provides a divided timing signal for a motor. In a first step, a measurement is made of the frequency of the oscillator reference signal in at least one measurement period without inhibition. A second step is provided for acquiring the current inhibition value to inhibit a certain number of clock pulses in a subsequently inhibition period and to determine the inhibition value. Finally, a third step is provided for calculating the corresponding rate frequency of the watch.
Inventors:
Francois Cropfence Tyne
Eve goda
Nicola Jeanne
Eve goda
Nicola Jeanne
Application Number:
JP2016220226A
Publication Date:
December 20, 2017
Filing Date:
November 11, 2016
Export Citation:
Assignee:
Outer S.A. Manufacture Orologer Switzerland
International Classes:
G04G3/02; G04C3/14; G04D7/12
Domestic Patent References:
| JP3172791A | ||||
| JP8265043A | ||||
| JP3558040B2 | ||||
| JP6329291A |
Foreign References:
| CH707285A3 |
Attorney, Agent or Firm:
Shigeki Yamakawa
Masaki Yamakawa
Masaki Yamakawa