发明名称 PORTABLE ELECTRONIC DEVICES, METHODS AND COMPUTER PROGRAM PRODUCTS USING ACTIVITY-TRIGGERED GPS UPDATES
摘要 <p>A portable electronic device, e.g., a mobile communications terminal, PDA or other handheld device, includes a GPS receiver and is configured to conduct non-GPS activities. The GPS receiver is transitioned out of a sleep state to attempt to acquire at least one GPS satellite signal responsive to a selected non-GPS activity of the device. For example, the GPS receiver may be transitioned out of the sleep state to attempt to acquire at least one GPS satellite signal responsive to a first non-GPS activity, and may be left in the sleep state notwithstanding occurrence of a second non-GPS activity. The first non-GPS activity may, for example, be associated with positioning of the device in a more conducive to reception of GPS satellite signals than the second non-GPS activity. For example, the first non-GPS activity may comprise an internet browsing activity, a video presentation activity, a gaming activity and/or a non-hands-free telephony activity.</p>
申请公布号 EP1875264(A1) 申请公布日期 2008.01.09
申请号 EP20060743319 申请日期 2006.04.18
申请人 SONY ERICSSON MOBILE COMMUNICATIONS AB 发明人 JENDBRO, MAGNUS;HANSSON, BJOERN
分类号 G01S1/00;G01S19/25;G01S5/14;G01S19/34 主分类号 G01S1/00
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