Vehicle telematics unit power management
First Claim
1. A method of conserving vehicle power when a primary power system of a vehicle is powered down during a voice call, comprising the steps of:
- (a) receiving an indication that the vehicle'"'"'s primary power system is powered down during the voice call;
(b) after a predetermined period of time, determining whether to power down a secondary power system associated with a vehicle telematics system;
(c) when it is determined that the secondary power system should be powered down, powering down the secondary power system; and
(d) when it is determined that the secondary power should not be powered down, waiting the predetermined period of time before again determining whether to power down the secondary power system,wherein the determination of steps (b) and (d) include detecting an absence of voice activity associated with the voice call during the predetermined period of time of steps (b) or (d).
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Accused Products
Abstract
A system and method(s) for conserving vehicle power when a primary power system of a vehicle is powered down during a voice call. The method includes the steps of: (a) receiving an indication that the vehicle'"'"'s primary power system is powered down during the voice call; (b) after a predetermined period of time, determining whether to power down a secondary power system associated with a vehicle telematics system; (c) when it is determined that the secondary power system should be powered down, powering down the secondary power system; and (d) when it is determined that the secondary power should not be powered down, waiting the predetermined period of time before again determining whether to power down the secondary power system. The determination of steps (b) and (d) include detecting an absence of voice activity during the predetermined period of time of steps (b) or (d).
19 Citations
11 Claims
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1. A method of conserving vehicle power when a primary power system of a vehicle is powered down during a voice call, comprising the steps of:
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(a) receiving an indication that the vehicle'"'"'s primary power system is powered down during the voice call; (b) after a predetermined period of time, determining whether to power down a secondary power system associated with a vehicle telematics system; (c) when it is determined that the secondary power system should be powered down, powering down the secondary power system; and (d) when it is determined that the secondary power should not be powered down, waiting the predetermined period of time before again determining whether to power down the secondary power system, wherein the determination of steps (b) and (d) include detecting an absence of voice activity associated with the voice call during the predetermined period of time of steps (b) or (d). - View Dependent Claims (2, 3, 4, 5)
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6. A method of conserving vehicle power when a primary power system of a vehicle is powered down during a voice call, comprising the steps of:
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(a) receiving an indication that the vehicle'"'"'s primary power system is powered down during the voice call; (b) after a predetermined period of time, determining whether to power down a secondary power system associated with a vehicle telematics system; (c) when it is determined that the secondary power system should be powered down, powering down the secondary power system; and (d) when it is determined that the secondary power should not be powered down, waiting the predetermined period of time before again determining whether to power down the secondary power system, wherein the determination of steps (b) and (d) include detecting an absence of voice activity during the predetermined period of time of steps (b) or (d), wherein the determination of steps (b) and (d) comprise detecting an absence of doubletalk activity during the predetermined period of time of steps (b) and (d).
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7. A method of conserving vehicle power when a primary power system of a vehicle is powered down during a voice call, comprising the steps of:
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(a) receiving an indication that the vehicle'"'"'s primary power system is powered down during the voice call; (b) after a predetermined period of time, determining whether to power down a secondary power system associated with a vehicle telematics system; (c) when it is determined that the secondary power system should be powered down, powering down the secondary power system; and (d) when it is determined that the secondary power should not be powered down, waiting the predetermined period of time before again determining whether to power down the secondary power system, wherein the determination of steps (b) and (d) include detecting an absence of voice activity during the predetermined period of time of steps (b) or (d), wherein the determination of steps (b) and (d) comprise; determining an audio threshold value greater than a noise floor value of a cabin region of the vehicle, wherein the audio threshold value is indicative of an absence of human speech within the cabin region; and for the predetermined period of time in step (b) or (d), determining whether a received audio value for the predetermined period of time exceeds the audio threshold value, wherein, when the received audio value exceeds the audio threshold value, step (c) determines that the secondary power system should be powered down. - View Dependent Claims (8)
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9. A method of conserving vehicle power when a primary power system of a vehicle is powered down during a voice call, comprising the steps of:
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(a) receiving an indication that the vehicle'"'"'s primary power system is powered down during the voice call; (b) after a predetermined period of time, determining whether to power down a secondary power system associated with a vehicle telematics system; (c) when it is determined that the secondary power system should be powered down, powering down the secondary power system; and (d) when it is determined that the secondary power should not be powered down, waiting the predetermined period of time before again determining whether to power down the secondary power system, wherein the determination of steps (b) and (d) include detecting an absence of voice activity during the predetermined period of time of steps (b) or (d), wherein the determination of steps (b) and (d) comprise; determining a threshold power parameter associated with a vehicle telematics unit during a DRx mode, wherein the threshold power parameter is indicative of silence within a cabin region of the vehicle; for the predetermined period of time in step (b) or (d), determining whether an actual power parameter for the period of time is greater than the threshold power parameter, wherein, when the actual power parameter is greater than the threshold power parameter, step (c) determines that the secondary power system should be powered down. - View Dependent Claims (10, 11)
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Specification