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Class Information
Number: 368/202
Name: Horology: time measuring systems or devices > Regulating means > For compensation
Description: Subject matter comprising means to counterbalance or offset changes in conditions which affect the operation of a timepiece.

Patents under this class:
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Patent Number Title Of Patent Date Issued
8344814 Circuit and method for generating a clock signal Jan. 1, 2013
8321169 Method and system for compensating temperature readings from a temperature sensing crystal integrated circuit Nov. 27, 2012
RE43236 Automatic circuit and method for temperature compensation of oscillator frequency variation over temperature for a real time clock chip Mar. 13, 2012
7944777 Watch fitted with an electric motor control case May. 17, 2011
7925463 Method and system for compensating temperature readings from a temperature sensing crystal integrated circuit Apr. 12, 2011
7661875 Balance for timepiece movement Feb. 16, 2010
7371005 Automatic circuit and method for temperature compensation of oscillator frequency variation over temperature for a real time clock chip May. 13, 2008
7284141 Method of and apparatus for measuring jitter and generating an eye diagram of a high speed data signal Oct. 16, 2007
7246022 Initiation of differential link retraining upon temperature excursion Jul. 17, 2007
7118269 Method of correcting a real-time clock of an electronic apparatus Oct. 10, 2006
6961287 Time error compensating apparatus and method in a terminal Nov. 1, 2005
6729755 Low power, cost effective, temperature compensated real time clock and method of clocking systems May. 4, 2004
6616328 High accuracy timepiece Sep. 9, 2003
6529447 Compensation of crystal start up for accurate time measurement Mar. 4, 2003
6381702 Electronic clock Apr. 30, 2002
6312153 Clock or watch having accuracy-improving function Nov. 6, 2001
6217213 Temperature sensing systems and methods Apr. 17, 2001
6176611 System and method for reducing power consumption in waiting mode Jan. 23, 2001
6163126 Electronic device Dec. 19, 2000
6146011 Self-correcting watch Nov. 14, 2000
6086244 Low power, cost effective, temperature compensated, real time clock and method of clocking systems Jul. 11, 2000
6019500 Method and apparatus for measuring cumulative time Feb. 1, 2000
5936149 Personal date/time notary device Aug. 10, 1999
5903523 Time analyzer having an improved interpolator with temperature compensation May. 11, 1999
5767747 Electronic low power clock circuit and method Jun. 16, 1998
5748570 Time correction of an electronic clock May. 5, 1998
5719827 Highly stable frequency generator Feb. 17, 1998
5717661 Method and apparatus for adjusting the accuracy of electronic timepieces Feb. 10, 1998
5644271 Temperature compensated clock Jul. 1, 1997
5546363 Clock apparatus for forming time information for use in computer system Aug. 13, 1996
5375105 Timekeeping rate regulator for crystal controlled watches and clocks Dec. 20, 1994
5274545 Device and method for providing accurate time and/or frequency Dec. 28, 1993
5245592 Wearing time measuring device for a removable medical apparatus Sep. 14, 1993
5168478 Time standard assembly with upset protection and recovery means Dec. 1, 1992
5138707 Method of operating a timer in a digital data processing system Aug. 11, 1992
5128909 Advanced clock measurement system Jul. 7, 1992
4953148 Elimination of magnetic influence on atomic clocks Aug. 28, 1990
4899117 High accuracy frequency standard and clock system Feb. 6, 1990
4879669 Sensor signal processor Nov. 7, 1989
4779248 Electronic timepiece Oct. 18, 1988
4761771 Electronic timekeeping apparatus with temperature compensation and method for compensating same Aug. 2, 1988
4730286 Circuit and method for correcting the rate of an electronic timepiece Mar. 8, 1988
4650344 Radio controlled timepiece Mar. 17, 1987
4537515 Resonator temperature compensated time base and watch using said time base Aug. 27, 1985
4533257 Analog electric timepiece Aug. 6, 1985
4513259 Closed loop temperature compensated frequency reference Apr. 23, 1985
4502790 Electronic timepiece Mar. 5, 1985
4473303 Electronic timepiece Sep. 25, 1984
4465379 Temperature detector circuit for timepiece Aug. 14, 1984
4465380 Electronic timepiece Aug. 14, 1984

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