Analog-display electronic timepiece comprising a divider with an adjustable division factor
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 10, 1983
Issued Date -
N/A
app pub date -
Jul 15, 1981
filing date -
Nov 26, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An electronic watch comprising a stepping motor for driving a mechanism for displaying the time information, a quartz oscillator, a frequency divider with an adjustable division factor, a circuit for adjusting the division factor, a memory containing data relating to the magnitude of said adjustment and a logic circuit which, in response to an interrogation signal, produces a measuring signal which is supplied to the coil of the stepping motor and which comprises pulses whose distribution is representative of the division factor and the frequency of the oscillator and whose duration is sufficiently short so as not to cause the motor to turn and sufficiently long to cause a magnetic stray field of the coil of the motor which can be detected by an external apparatus for measuring the rate of the watch.
First Claim
Family
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully