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公开(公告)号：US11258640B2
公开(公告)日：2022-02-22
申请号：US16958060
申请日：2018-03-30
Applicant: Intel Corporation
Inventor： Armando Cova , Christoph Hepp , Gunther Kraut , Andreas Langer
Abstract: An apparatus for a mobile communication device adapted for digital pre-distortion that includes a memory and a processor operatively coupled to the memory of the processor. The processor receives a first input signal and also receives a first output signal from a power amplifier that is based on the first input signal. The processor additionally varies compression applied to a second input signal based on the first output signal of the power amplifier, generates a distortion compensation vector for the second input signal based on the first output signal of the power amplifier, and also varies an input excitation signal supplied to the power amplifier based on the first output signal of the power amplifier.
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公开(公告)号：US11146276B2
公开(公告)日：2021-10-12
申请号：US16958034
申请日：2018-03-30
Applicant: Intel Corporation
Inventor： Niranjan Karandikar , Mohammed Alam , Gregory Chance , Armando Cova , Michael Milyard , John J. Parkes, Jr. , Ashoke Ravi , Daniel Schwartz , Dong-Jun Yang
Abstract: A wireless communication device can include an antenna configured to sense a radio frequency (RF) signal. The wireless communication device can include signal estimation circuitry configured to generate estimates of amplitude and frequency for unmodulated spurs within the RF signal. The wireless communication device can further include multi-tone generator circuitry coupled to the signal estimation circuitry and configured to generate a composite spur cancellation signal based on the estimates of amplitude and frequency for unmodulated spurs within the RF signal. The wireless communication device can further include adder circuitry configured to subtract the spur cancellation signal from the RF signal to generate a spur cancelled signal.
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