Electronic device with clock function, time correction method and recording medium
Patent 6219303 Issued on April 17, 2001. Estimated Expiration Date: 
April 5, 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 5, 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 ReferencesTwo-way paging apparatus having highly accurate frequency hopping synchronization GPS based time determining system and method Time measurement in a communications system, a communications system and a receiver for use in such a system Watch with radio-signal correction function Patent #: 5898643 InventorsAssigneeApplicationNo. 543722 filed on 04/05/2000US Classes:368/47, With wireless synchronization368/187By electrical device actuationExaminersPrimary: Miska, Vit W.Attorney, Agent or FirmInternational ClassG04C 011/02Foreign Application Priority Data1999-04-09 JPAbstractA wristwatch receives time-of-day information transmitted in the form of an infrared signal and then calculates the difference between the received time-of-day information and its time data. A decision is made as to whether the difference is not less than or less than a predetermined value. If the difference is less than the predetermined value, the accuracy of the received data and the accuracy set in the wristwatch are determined by referring to the types of time-measuring references. When the received data is higher accurate, the current time data stored by the first storage area is corrected by the received time data. | |
