Power control techniques for wireless transmitters
First Claim
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1. An apparatus comprising:
- a multiplexer configured to receive a digital amplitude signal during a first transmission mode and to receive a digital power level signal during a second transmission mode, and to select either the digital amplitude signal or the digital power level signal for digital-to-analog conversion, based on the transmission mode;
a digital-to-analog converter (DAC) configured to convert the digital amplitude signal to an analog amplitude signal during the first transmission mode and configured to convert the digital power level signal to an analog power level signal during a second transmission mode; and
wherein one of the transmission modes includes a transmission mode that employs at least amplitude modulation, andwherein another one of the transmission modes includes a transmission mode that employs at least phase modulation or frequency modulation.
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Abstract
Various embodiments are disclosed relating to power control techniques for wireless transmitters. In an example embodiment, an apparatus is provided that may include a digital-to-analog converter (DAC) adapted to convert a digital amplitude signal to an analog amplitude signal during a first transmission mode and adapted to convert a digital power level signal to an analog power level signal during a second transmission mode.
62 Citations
16 Claims
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1. An apparatus comprising:
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a multiplexer configured to receive a digital amplitude signal during a first transmission mode and to receive a digital power level signal during a second transmission mode, and to select either the digital amplitude signal or the digital power level signal for digital-to-analog conversion, based on the transmission mode; a digital-to-analog converter (DAC) configured to convert the digital amplitude signal to an analog amplitude signal during the first transmission mode and configured to convert the digital power level signal to an analog power level signal during a second transmission mode; and wherein one of the transmission modes includes a transmission mode that employs at least amplitude modulation, and wherein another one of the transmission modes includes a transmission mode that employs at least phase modulation or frequency modulation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method comprising:
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receiving multiple signals, including; receiving a digital amplitude signal during a first transmission mode; receiving a digital power level signal during a second transmission mode; and selecting either the digital amplitude signal or the digital power level signal for digital-to-analog conversion, based on the transmission mode; providing a multi-mode digital-to-analog conversion, including; converting the digital amplitude signal to an analog amplitude signal during a first transmission mode that employs at least amplitude modulation; and converting the digital power level signal to an analog power level signal during a second transmission mode that employs at least phase modulation or frequency modulation. - View Dependent Claims (10, 11, 12)
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13. An apparatus comprising:
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a digital-to-analog converter (DAC) configured to; convert a digital power level signal to an analog power level signal during the transmission power ramp portions of a transmission power profile, and convert a digital amplitude signal to an analog amplitude signal during a data transmission period portion of the transmission power profile; wherein the digital power level signal is employed to control a transmission power for the apparatus; and wherein the digital amplitude signal is employed to control an amplitude modulation of a signal transmitted by the apparatus. - View Dependent Claims (14, 15, 16)
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Specification