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Class Information
Number: 368/201
Name: Horology: time measuring systems or devices > Regulating means > For adjusting the frequency or beat > Of frequency divider
Description: Subject matter comprising means for delivering an output which is an integral submultiple or proper fraction of the input frequency.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8392001 Method and apparatus for externally aided self adjusting real time clock Mar. 5, 2013
8201991 Frequency corrector and clocking apparatus using the same Jun. 19, 2012
7992177 Point-to-multipoint high definition multimedia transmitter and receiver Aug. 2, 2011
7391273 Clock signal output apparatus and control method of same, and electric apparatus and control method of same Jun. 24, 2008
7387433 Integrated circuit chip for analogue electronic watch applications Jun. 17, 2008
6616328 High accuracy timepiece Sep. 9, 2003
6120178 Method for adjusting the rate of a horological module by means of fuses able to be destroyed by laser Sep. 19, 2000
5973617 Control circuit with adjustable standby oscillator Oct. 26, 1999
5805000 Logical lose-gain circuit and electronic device having logical loose-gain circuit Sep. 8, 1998
5644271 Temperature compensated clock Jul. 1, 1997
5587691 Digital trimming for frequency adjustment Dec. 24, 1996
5530407 Digital trimming for frequency adjustment Jun. 25, 1996
5481507 Electronic timekeeping device reduced adjustment data storage requirement Jan. 2, 1996
5444674 Hand held decimal timer with improved frequency division Aug. 22, 1995
5375105 Timekeeping rate regulator for crystal controlled watches and clocks Dec. 20, 1994
5327404 On-chip frequency trimming method for real-time clock Jul. 5, 1994
5204845 Clock synchronization Apr. 20, 1993
5195063 Electronic timepiece including integrated circuitry Mar. 16, 1993
4763309 Programming arrangement for a non-volatile memory for a timepiece Aug. 9, 1988
4737944 Electronic timepiece Apr. 12, 1988
4707145 Electronic timepiece Nov. 17, 1987
4553850 Logical regulation circuit for an electronic timepiece Nov. 19, 1985
4473303 Electronic timepiece Sep. 25, 1984
4464061 Linearizer circuit and an electronic watch incorporating same Aug. 7, 1984
4461582 Circuit arrangement for adjusting a pulse frequency of a quartz-controlled watch or clock Jul. 24, 1984
4456386 Timepiece having a divider chain with an adjustable division rate Jun. 26, 1984
4453834 Electronic timepiece with temperature compensation Jun. 12, 1984
4440503 Electronic timer Apr. 3, 1984
4433920 Electronic timepiece having improved primary frequency divider response characteristics Feb. 28, 1984
4408897 Electronic timepiece having a digital frequency correction circuit Oct. 11, 1983
4407589 Error correction method and apparatus for electronic timepieces Oct. 4, 1983
4382692 Analog-display electronic timepiece comprising a divider with an adjustable division factor May. 10, 1983
4378167 Electronic timepiece with frequency correction Mar. 29, 1983
4373821 Electronic timepiece generating different alarm sounds for respective different regions Feb. 15, 1983
4320482 Switch for an electronic timepiece Mar. 16, 1982
4300224 Electronic timepiece Nov. 10, 1981
4282594 Electronic timepiece Aug. 4, 1981
4270193 Electronic timepiece May. 26, 1981
4264968 Basic circuit for electronic timepieces Apr. 28, 1981
4254494 Accuracy correction in an electronic timepiece Mar. 3, 1981
4247932 Electronic timepiece Jan. 27, 1981
4223268 Frequency dividing circuit of variable frequency dividing ratio type Sep. 16, 1980
4176517 Integrated circuit for timepiece Dec. 4, 1979
4155218 Electronic watch May. 22, 1979
4154053 Electronic timepiece having an adjustable rate of division and method for its manufacture May. 15, 1979
4148184 Electronic timepiece utilizing main oscillator circuit and secondary oscillator circuit Apr. 10, 1979
4147022 Electronic timepiece Apr. 3, 1979
4142360 Electronic timepiece Mar. 6, 1979
4117663 Electronic watch with time correction system Oct. 3, 1978
4114363 Electronic timepiece Sep. 19, 1978

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