Analog clock driven by radio signals with automatic resetting means
Patent 6343050 Issued on January 29, 2002. Estimated Expiration Date: 
April 6, 2020. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
April 6, 2020. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesElectronic watch Timepiece with modified clock rate for faciliting adaptation to new time standard Impulse clock system Patent #: 5442599 InventorAssigneeApplicationNo. 544044 filed on 04/06/2000US Classes:368/47, With wireless synchronization368/71, With simultaneous time indicating means368/80, Hand and dial368/82, With electro-optical display368/187By electrical device actuationExaminersPrimary: Miska, Vit W.Attorney, Agent or FirmInternational ClassesG04C 011/02G04C 019/00 G04C 009/00 G04B 025/00 G04B 019/04 AbstractAn analog clock with a contiguous digital display is driven by radio signals from a WWVB or other time keeping radio station. To avoid using magnetic or optical feedback of the position of the hands of the analog clock if an erroneous time is shown (for example because of replacing the battery), the user of the clock physically resets the digital display to the analog setting (which of course is erroneous). Then an associated microprocessor speeds up or slows down the running of the analog clock until a match is made to the actual radio time. | |
