Invention Grant
- Patent Title: Signal transmitter linearization
- Patent Title (中): 信号发射机线性化
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Application No.: US12858998Application Date: 2010-08-18
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Publication No.: US08306488B2Publication Date: 2012-11-06
- Inventor: Peter Zahariev Rashev , John-Peter van Zelm , David M. Tholl
- Applicant: Peter Zahariev Rashev , John-Peter van Zelm , David M. Tholl
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Meyertons, Hood, Kivlin, Kowert & Goetzel, P.C.
- Main IPC: H04B1/04
- IPC: H04B1/04 ; H04B1/02
Abstract:
A linearizer for a non-linear transmitter includes a tap delay line that provides samples of an input signal at selected times. At least one Volterra tap is coupled to the tape delay line. The Volterra tap includes a lookup table representation of a polynomial. An adaptive controller is coupled to the Volterra tap for modifying values in the lookup table.
Public/Granted literature
- US20100311361A1 SIGNAL TRANSMITTER LINEARIZATION Public/Granted day:2010-12-09
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