| US 7,400,884 B2 | ||
| Apparatus and methods for associating a geographical position with an event occurring on a wireless device | ||
| Kenny Fok, San Diego, Calif. (US); Eric Chi Chung Yip, San Diego, Calif. (US); Mikhail A. Lushin, San Diego, Calif. (US); Prachi Windlass, Palantine, Ill. (US); and Robert James Tisdale, Cardiff, Calif. (US) | ||
| Assigned to Qualcomm Incorporated, San Diego, Calif. (US) | ||
| Filed on May 27, 2005, as Appl. No. 11/139,301. | ||
| Claims priority of provisional application 60/675739, filed on Apr. 27, 2005. | ||
| Prior Publication US 2006/0246918 A1, Nov. 02, 2006 | ||
| Int. Cl. H04M 3/42 (2006.01); H04Q 7/20 (2006.01) | ||
| U.S. Cl. 455—414.2 [455/456.1] | 2 Claims |
| 1. A method for estimating a geographical position corresponding to a wireless device event, comprising:
receiving at least one of a first geographical position data of the wireless device corresponding to a first position of the
wireless device before a time of the event and a second geographical position data of the wireless device corresponding to
a second position of the wireless device after a time of the event;
determining an estimated geographical position of the wireless device at an occurrence of the event based on a predetermined
relationship between the event and at least one of said first geographical position data and said second geographical position
data; and
wherein determining the estimated geographical position further comprises selecting one of said first position and said second
position as the estimated geographic position according to one of:
determining that a respective time difference between the time of the event and a respective time of one of said first geographical
position data and said second geographical position data is within both a predetermined maximum time threshold and a predetermined
low time threshold, wherein if both of said first geographical position data and said second geographical position data have
a respective time difference within the predetermined low time threshold, then choosing one of said first position and said
second position corresponding to the respective time difference having a smallest value; or
determining that a respective time difference between the time of the event and a respective time of one of said first geographical
position data and said second geographical position data is within a predetermined maximum time threshold, and determining
that a respective distance traveled between the time of the event and a respective time of one of said first geographical
position data and said second geographical position data is within a predetermined distance threshold wherein if both of said
first geographical position data and said second geographical position data have a respective time difference within the predetermined
maximum time threshold and a respective distance traveled within the predetermined distance threshold, then choosing one of
said first position and said second position corresponding to the respective distance traveled having a smallest value.
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