Battery charge reservation for emergency communications
First Claim
Patent Images
1. A wireless communications device comprising:
- a display screen;
an electronics system configured to provide communications over a communications network;
a primary battery configured to power the electronics during a power-on mode;
a secondary battery configured to power the electronics in response to an emergency signal being received while said electronics are in a power-off mode;
wherein the electronics system;
establishes a voltage threshold of the primary battery to ensure that the wireless communications device, at the voltage threshold, has sufficient power for an emergency communication;
establishes an offsetted power threshold that is a multiplier of the voltage threshold;
displays, on the display, a battery power meter that indicates both the voltage threshold and the offsetted power threshold;
generates a pre-established emergency message in response to the emergency signal, wherein the pre-established emergency message is directed to an emergency service provider associated with the emergency signal, and wherein the secondary battery powers only a portion of the display screen while said electronics are in power-off mode, with a second portion of the display screen remaining unpowered, such that the display screen is only partially powered to allow the display screen to retain some functionality while conserving power of the secondary battery.
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Abstract
A wireless communications device and method for establishing a voltage threshold at which to turn off electronics of a wireless communications device includes determining a power threshold level at which a device is to be shut off when a battery of the device reaches or drops below the power threshold level. The determined power threshold level may be offset. The amount of power remaining for the battery in the communications device may be measured. The communication device may be shut off based on the offset power threshold level so as to preserve enough power for an emergency message to be generated and sent in the case of an emergency.
145 Citations
12 Claims
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1. A wireless communications device comprising:
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a display screen; an electronics system configured to provide communications over a communications network; a primary battery configured to power the electronics during a power-on mode;
a secondary battery configured to power the electronics in response to an emergency signal being received while said electronics are in a power-off mode;wherein the electronics system; establishes a voltage threshold of the primary battery to ensure that the wireless communications device, at the voltage threshold, has sufficient power for an emergency communication; establishes an offsetted power threshold that is a multiplier of the voltage threshold; displays, on the display, a battery power meter that indicates both the voltage threshold and the offsetted power threshold; generates a pre-established emergency message in response to the emergency signal, wherein the pre-established emergency message is directed to an emergency service provider associated with the emergency signal, and wherein the secondary battery powers only a portion of the display screen while said electronics are in power-off mode, with a second portion of the display screen remaining unpowered, such that the display screen is only partially powered to allow the display screen to retain some functionality while conserving power of the secondary battery. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for establishing a voltage threshold at which to turn off electronics of a wireless communications device so as to preserve enough power to communicate an emergency message over a communications network, the method comprising:
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determining an amount of power used by the wireless communications device to perform a powered-down emergency communication, including performing an emergency power-up sequence, powering only a portion of a display screen of the wireless communication device while a second portion of the display screen remains unpowered, connecting with the communications network, communicating a pre-established message to the communications network in response to selection by a user of a dedicated button of the wireless communications device, and providing a notification that the message was communicated to the user of the wireless communications device; and establishing a voltage threshold level of a battery of the wireless communications device that, when measured, causes the electronics to turn off so as to ensure that the wireless communications device has sufficient power to power only the portion of the display screen while the second portion of the display screen remains unpowered and communicate the pre-established message to an emergency service provider associated with the selection; setting a turn-off voltage threshold parameter in the wireless communications device based on an offsetted power threshold level, the offsetted power threshold level based on a multiplier of the voltage threshold, the turn-off voltage threshold parameter causing the wireless communications device to turn off at a certain battery voltage level to ensure sufficient battery power remains to perform at least one powered-down emergency communication; and displaying, on a battery power meter, both the voltage threshold level and the offsetted power threshold level. - View Dependent Claims (8, 9, 10, 11, 12)
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Specification