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US 6,710,651 B2Granted
Systems and methods for controlling output power in a communication device
AssigneeKyocera Wireless Corp.
InventorTim Forrester
Life of this patent
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AssigneeKyocera Wireless Corp.
InventorTim Forrester
Estimating the term…
A wireless communication device comprises a power amplifier configured to amplify a power level of a transmit signal to a required transmit power level and a transmission line coupled with the power amplifier. The transmission line is configured to convey the amplified transmit signal. The wireless communication device also comprises a power control circuit that includes a bi-directional coupler detector coupled with the transmission line. The bi-directional coupler detector is configured to sense a forward power level and a reflected power level in the transmission line. The power control circuit may be configured to adjust the required transmit power level based at least in part on the forward and reflected power levels sensed by the bi-directional coupler detector. The power control circuit may also adjust an impedance of an impedance matching circuit based at least in part on the reflected power level sensed by the bi-directional coupler detector.
A power control circuit comprising a bi-directional coupler detector configured to couple the power control circuit with a transmission line and to sense a forward power level and a reflected power level in the transmission line, the power control circuit configured to:
A wireless communication device, comprising:
A wireless communication device, comprising:
A method of controlling output power in a wireless communication device, comprising:
A wireless communication device configured to communicate using low power level CDMA signals, comprising a power control circuit including a bi-directional coupler detector coupled with the transmission line, the bi-directional coupler detector configured to sense a forward power level and a reflected power level in the transmission line, the power control circuit configured to:
Dependencies are inferred from the claim text.