Portable precision clock with additonal functions
Patent 5790477 Issued on August 4, 1998. Estimated Expiration Date: 
June 9, 2017. 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.
June 9, 2017. 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 ReferencesPrecise universal time for vehicles Time transfer system Watch including an arrangement indicating the magnetic north Patent #: 5550794 InventorAssigneeApplicationNo. 871885 filed on 06/09/1997US Classes:368/10, COMBINED WITH DISPARATE DEVICE368/11, Ambient condition detector368/47With wireless synchronizationExaminersPrimary: Miska, Vit W.Attorney, Agent or FirmInternational ClassesG04B 047/00G04C 011/00 AbstractThe portable precision watch, additionally to time-keeping functions, also comprises a GPS receiver with antenna, evaluation electronics, a compass, a destination coordinate memory, an input element and a display element. With the evaluation electronics the coordinates of the location and the direction to the destination are computed and are made directly viewable as a vector display in the display element. Thus a very compact precision watch is provided which may be personally carried everywhere and worldwide, and directly displays the direction to any destination, in particular as a pocket watch or wrist watch. | |
