Portable electronic device with radiofrequency signal receiver and method for determining the position of the same
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 19, 2008
Grant Date -
Dec 7, 2006
app pub date -
May 18, 2006
filing date -
May 18, 2005
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The portable electronic device, preferably a wristwatch, includes a radiofrequency signal receiver for receiving, in particular, GPS signals via an antenna, a magnetic compass, a microprocessor data processing unit for processing data provided by the receiver and the compass, and storage means in which almanac and ephemeredes data relating to satellites is stored. The compass is arranged for provide an orientation signal to the data processing device. In this manner, the unit can control means for indicating a direction to indicate a preferred orientation for searching for satellites visible to the user in a reading position of the watch. These indicating means can be formed by the time indicating hands moved above a watch dial. The preferred orientation is calculated by the processing unit on the basis of the almanac and ephemeredes data, time data and the orientation signal.
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