Method and system for operating a portable electronic device in a power-limited manner
First Claim
1. A method for starting up a mobile device having a battery, said method comprising:
- (a) examining a battery level of the battery;
(b) determining whether the battery level is substantially depleted;
(c) determining whether an external, power-limited power source is electrically coupled to the mobile device; and
(d) deferring start-up of the mobile device while charging the battery via power provided to the mobile device from the external, power-limited power source when said determining (b) determines that the battery level is substantially depleted and said determining (c) determines that the external, power-limited power source is electrically coupled to the mobile device.
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Accused Products
Abstract
Improved techniques to manage operation of a portable electronic device having a substantially depleted battery when power is available from an external, power-limited source are disclosed. In one embodiment of the invention, the substantially depleted battery can be initially charged while a power-intensive operation is delayed. Once the battery has adequate charge to assist the external, power-limited source in powering the portable electronic device, the power-intensive operation can be performed. In this manner, power consumption of a portable electronic device can be managed so that reliable operation is achieved without exceeding limits on power being drawn from an external, power-limited source.
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Citations
29 Claims
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1. A method for starting up a mobile device having a battery, said method comprising:
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(a) examining a battery level of the battery;
(b) determining whether the battery level is substantially depleted;
(c) determining whether an external, power-limited power source is electrically coupled to the mobile device; and
(d) deferring start-up of the mobile device while charging the battery via power provided to the mobile device from the external, power-limited power source when said determining (b) determines that the battery level is substantially depleted and said determining (c) determines that the external, power-limited power source is electrically coupled to the mobile device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for starting up a mobile computing device having a battery, said method comprising:
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(a) examining a battery level of the battery;
(b) determining whether the battery level exceeds a first threshold level;
(c) determining whether power is available from a host computer via a power-limited peripheral bus electrically coupled to the mobile computing device; and
(d) initiating charging of the battery using at least a portion of the power that is available via the power-limited peripheral bus when said determining (b) determines that the battery level does not exceed the first threshold level and said determining (c) determines that power is available from the power-limited peripheral bus. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A media device, comprising:
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a media store for storing media items;
a communication interface for interfacing with a host device via a cable that provides media data and power to said media device when the cable is connected between said media device and the host device;
a battery for providing power to said media device; and
a battery monitor that monitors a battery attribute of said battery, wherein start-up of the media device is deferred based on the battery attribute of said battery as monitored by said battery monitor.
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26. A computer readable medium for performing a power-intensive operation by a mobile device having a battery, said computer readable medium comprising:
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computer program code for examining a battery level of the battery;
computer program code for determining whether the battery level is substantially depleted;
computer program code for determining whether a power-limited power source is electrically coupled to the mobile device; and
computer program code for deferring performance of the power-intensive operation by the mobile device while charging the battery via power provided to the mobile device from the power-limited power source when it is determined that the battery level is substantially depleted and it is determined that the power-limited power source is electrically coupled to the mobile device. - View Dependent Claims (27, 28, 29)
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Specification