SYSTEM, METHOD, AND APPARATUS FOR MINIMIZING POWER CONSUMPTION IN A PORTABLE DEVICE CAPABLE OF RECEIVING SATELLITE NAVIGATIONAL SYSTEM SIGNALS
First Claim
1. A portable device, comprising:
- a receiver capable of receiving satellite navigational system signals;
one or more processors; and
at least one non-transitory computer-readable medium having program instructions recorded thereon, the program instructions configured to have the one or more processors perform the steps of;
retrieving power usage information concerning one or more power usage characteristics corresponding to a current location of the portable device, where the power usage information is based on aggregate data from power usage data of one or more portable devices which receive satellite navigational system signals and which have traversed and/or are traversing the current location; and
selecting a power saving mode from a plurality of power saving modes based at least on the retrieved power usage information from the aggregate data, where each of the plurality of power saving modes reduces power used by the portable device in at least one of receiving the satellite navigational system signals, processing the satellite navigational system signals, and computing the portable device'"'"'s position using the satellite navigational system signals.
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Abstract
Methods, systems, and portable devices which reduce the power used by a portable device to receive/process satellite navigational system signals and/or to compute the portable device'"'"'s position using satellite navigational system signals are described. One portable device retrieves power usage information corresponding to its current location, where the power usage information is based on aggregate data from portable devices which have traversed and/or are traversing the current location. The portable device then selects a power saving mode from a plurality of power saving modes based on the retrieved power usage information, where each power saving mode reduces power usage in one or more of receiving and/or processing satellite navigational system signals, and/or computing the portable device'"'"'s position using the satellite navigational system signals.
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Citations
13 Claims
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1. A portable device, comprising:
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a receiver capable of receiving satellite navigational system signals; one or more processors; and at least one non-transitory computer-readable medium having program instructions recorded thereon, the program instructions configured to have the one or more processors perform the steps of; retrieving power usage information concerning one or more power usage characteristics corresponding to a current location of the portable device, where the power usage information is based on aggregate data from power usage data of one or more portable devices which receive satellite navigational system signals and which have traversed and/or are traversing the current location; and selecting a power saving mode from a plurality of power saving modes based at least on the retrieved power usage information from the aggregate data, where each of the plurality of power saving modes reduces power used by the portable device in at least one of receiving the satellite navigational system signals, processing the satellite navigational system signals, and computing the portable device'"'"'s position using the satellite navigational system signals. - View Dependent Claims (2, 3, 4)
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5. A portable device, comprising:
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a receiver capable of receiving satellite navigational system signals; one or more processors; and at least one non-transitory computer-readable medium having program instructions recorded thereon, wherein executing the program instructions results in the one or more processors performing the steps of; computing a route to a destination; and selecting a power saving mode from a plurality of power saving modes for each of one or more segments of the computed route based at least on one or more segment characteristics of the one or more segments, where each of the plurality of power saving modes reduces power used by the portable device in at least one of receiving the satellite navigational system signals, processing the satellite navigational system signals, and computing the portable device'"'"'s position using the satellite navigational system signals. - View Dependent Claims (6, 7, 8)
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9. A portable device, comprising:
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a receiver capable of receiving satellite navigational system signals; one or more processors; and at least one non-transitory computer-readable medium having program instructions recorded thereon, wherein executing the program instructions results in the one or more processors performing the steps of; reducing a rate at which positional updates/fixes are made using satellite navigational system signals; and estimating a current position of the portable device in between the positional updates/fixes made using satellite navigational system signals by using map data of a specific region the portable device is traversing. - View Dependent Claims (10, 11, 12, 13)
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Specification