| 摘要 |
A system, method, and device are disclosed for providing automatic setting of time of day and other information used by clocks and clock circuits/functions found in host devices such as household appliances, automobiles, wrist watches, computers and other electronic devices. The method and devices described bring an inexpensive automatic, and acceptably accurate procedure for getting the time of day and/or other information into these clocks. The system includes a remote host time piece device for maintaining the time of day and has a timebase with a reference from an electronic input. The system also includes a master time piece for obtaining the correct time and for transmitting the correct time to the remote host time piece device. Circuitry is included in the system for accepting the transmission of the correct time from the master time piece and for setting tile time of day in the remote host time piece device to the correct time transmitted from the master time piece. Also included in the system is circuitry, remote from the master time piece, for initiating from the master time piece the transmission of the correct time to the remote host time piece device upon the occurrence of at an event, such that the master time piece transmits to the remote lost time piece device an accuracy number that is used to determine based upon a selected tolerance whether the transmitted correct time from the master time piece is to be accepted for setting the time of day in the remote host time piece device to die correct time transmitted from the master time piece. |
