Method and apparatus for powering a wireless peripheral
First Claim
1. An apparatus, comprising:
- a controller configured to determine a wireless signal strength;
a wired bus interface configured to connect to an external device having an external power source, the wired bus interface further configured to communicate with and receive power from the external device; and
a circuit configured to selectively power a wireless peripheral with either the external power source or a combination of the external power source and an internal power source included in the wireless peripheral, based on the wireless signal strength.
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Accused Products
Abstract
An apparatus for powering a wireless peripheral includes a controller and a power management circuit. The controller is configured to determine the strength of wireless signals received by the peripheral. The power management circuit selectively powers the peripheral with either an external power source or a combination of the external power source and an internal power source included in the wireless peripheral. If the wireless signal strength is weak, the power management circuit uses both the internal an external sources to power the peripheral. This allows the wireless peripheral to boost its transmit power, even though its power requirement may exceed that available from the external source. If the wireless signal strength is strong, the power management circuit uses only the external source to power the peripheral. When this occurs the internal power source may also be simultaneously charged by the external power source.
13 Citations
20 Claims
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1. An apparatus, comprising:
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a controller configured to determine a wireless signal strength; a wired bus interface configured to connect to an external device having an external power source, the wired bus interface further configured to communicate with and receive power from the external device; and a circuit configured to selectively power a wireless peripheral with either the external power source or a combination of the external power source and an internal power source included in the wireless peripheral, based on the wireless signal strength. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A wireless peripheral, comprising:
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a wireless interface configured to receive one or more wireless signals; a controller configured to determine a strength of the wireless signals; an internal power source; a wired bus interface configured to connect to an external device having an external power source, the wired bus interface further configured to communicate with and receive power from the external device; and a circuit configured to selectively power the wireless peripheral using either the external power source or a combination of the external power source and the internal power source, based on the strength of the wireless signals. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A method of powering a wireless peripheral attachable to a device, comprising:
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determining a wireless signal strength; interfacing with the device via a wired bus interface, the wired bus interface configured to communicate with and receive power from the device; and powering the wireless peripheral with either an external power source included in the device or a combination of the external power source and an internal power source included in the wireless peripheral, based on the wireless signal strength. - View Dependent Claims (18, 19, 20)
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Specification