PRE-DISTORTION SYSTEM FOR CANCELLATION OF NONLINEAR DISTORTION IN MOBILE DEVICES

Number of patents in Portfolio can not be more than 2000

United States of America

APP PUB NO 20200028970A1
SERIAL NO

16586269

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Abstract

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A pre-distortion system for improved mobile device communications via cancellation of nonlinear distortion is disclosed. The pre-distortion system may transmit an acoustic signal from a network to a device, wherein the acoustic signal includes a linear signal and a nonlinear cancellation signal that cancels at least a portion of nonlinear distortions created once a loudspeaker in the device emits the linear signal. Thus, when a loudspeaker of a mobile device is operating and nonlinear distortions are generated by the loudspeaker or adjacent components of the mobile device in close proximity to the loudspeaker, the pre-distortion system may create one or more nonlinear cancellation signals in the network. The nonlinear cancellation signal may be combined with the linear signal sent to the loudspeaker to cancel the nonlinear distortion signal created by the loudspeaker emitting acoustic sounds from the linear signal. Thus, the nonlinear cancellation signal becomes a pre-distortion signal.

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Patent Owner(s)

Patent OwnerAddress
AT&T INTELLECTUAL PROPERTY I L P754 PEACHTREE STREET SUITE 7C ATLANTA GA 30308

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bowen, Donald J Madison, US 34 937
Dimitriadis, Dimitrios Rutherford, US 36 573
Ji, Lusheng Randolph, US 144 4429
Schroeter, Horst J New Providence, US 69 1442

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