Headset power source managing
First Claim
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1. A method for operating a noise reducing headset comprising:
- determining if electrical power from an external battery with an attached charging source is available, and if electrical power from the external battery with the attached charging source is available, operating communication circuitry, talk through circuitry, and active noise reduction circuitry with power from the external battery with the attached charging source;
if electrical power from the external battery with the attached charging source is not available, determining if electrical power from an external battery without an attached charging source and providing a first voltage is available, and if electrical power from the external battery without an attached charging source is available, operating the communication circuitry, the talk through circuitry, and the active noise reduction circuitry with power from the battery without the external charging source, operation of the active noise reduction circuitry being at a first gain level;
if electrical power from the external battery without an attached charging source is not available, determining if electrical power above a threshold voltage, lower than the first voltage, from an internal battery is available, and if electrical power above a threshold voltage from the internal battery source is available, operating the communication circuitry, the talk through circuitry, and the active noise reduction circuitry with power from the internal battery, operation of the active noise reduction circuitry being at a second gain level greater than the first gain level; and
if electrical power above the threshold voltage is not available from the internal battery, operating the communication circuitry and the talk through circuitry unpowered and disabling the active noise reduction circuitry.
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Accused Products
Abstract
A power management system and method for a noise reducing headset. The power management system adjusts the operations of the noise reducing headset based on the characteristics of the power sources available to the noise reducing headset.
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Citations
15 Claims
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1. A method for operating a noise reducing headset comprising:
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determining if electrical power from an external battery with an attached charging source is available, and if electrical power from the external battery with the attached charging source is available, operating communication circuitry, talk through circuitry, and active noise reduction circuitry with power from the external battery with the attached charging source; if electrical power from the external battery with the attached charging source is not available, determining if electrical power from an external battery without an attached charging source and providing a first voltage is available, and if electrical power from the external battery without an attached charging source is available, operating the communication circuitry, the talk through circuitry, and the active noise reduction circuitry with power from the battery without the external charging source, operation of the active noise reduction circuitry being at a first gain level; if electrical power from the external battery without an attached charging source is not available, determining if electrical power above a threshold voltage, lower than the first voltage, from an internal battery is available, and if electrical power above a threshold voltage from the internal battery source is available, operating the communication circuitry, the talk through circuitry, and the active noise reduction circuitry with power from the internal battery, operation of the active noise reduction circuitry being at a second gain level greater than the first gain level; and if electrical power above the threshold voltage is not available from the internal battery, operating the communication circuitry and the talk through circuitry unpowered and disabling the active noise reduction circuitry. - View Dependent Claims (2, 3)
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4. A noise reducing headset comprising:
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first determining and operating circuitry for determining if electrical power from an external battery with an attached charging source is available, and if electrical power from the external battery with the attached charging source is available, operating the communication circuitry, the talk through circuitry, and the active noise reduction circuitry with power from the external battery with the attached charging source; second determining and operating circuitry for determining, in the event that electrical power from the external battery with the attached charging source is not available, if electrical power from an external battery without an attached charging source and providing a first voltage is available, and if electrical power from the external battery without an attached charging source is available, operating the communication circuitry, the talk through circuitry, and the active noise reduction circuitry with power from the external battery without the attached charging source, the second determining and operating circuitry operating the active noise reduction circuitry at a first gain level; third determining and operating circuitry for determining, in the event that electrical power from the external battery without an attached charging source is not available, if electrical power above a threshold voltage, lower than the first voltage, from the internal battery source is available, and if electrical power electrical power above a threshold voltage from the internal battery source is available, operating the communication circuitry, the talk through circuitry, and the active noise reduction circuitry with power from the battery with the internal battery, the third determining and operating circuitry operating the active noise reduction circuitry at a second gain level greater than the first gain level; and circuitry for operating, in the event that electrical power above the threshold voltage is not available from the internal battery, the communication circuitry and the talk through circuitry unpowered and for disabling the active noise reduction circuitry. - View Dependent Claims (5, 6)
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7. A power management system for a noise reducing headset comprising:
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external receiving circuitry for receiving power from one of a plurality of external power sources; internal receiving circuitry for receiving power from an internal battery; electing circuitry for exclusively electing to receive electrical power from one of the external receiving circuitry or the internal receiving circuitry; and gain controlling circuitry, responsive to the electing circuitry for controlling a gain of active noise reduction circuitry, wherein the external receiving circuitry comprises determining circuitry for determining whether the external power source includes a battery charger and whether the external power source provides a first voltage, the internal receiving circuitry comprises determining circuitry for determining whether the internal battery provides a second voltage, lower than the first voltage, and the gain controlling circuitry causes the gain to be higher if the electing circuitry elects to receive power from the internal receiving circuitry than if the electing circuitry elects to receive power from the external receiving circuitry when the external power source does not include the battery charger and the first voltage is greater than the second voltage. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15)
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Specification