US 12,034,573 B1
Method and device for digital compensation of dynamic distortion in high-speed transmitters
Dragos Cartina, Burnaby (CA); Ankit Bhargav, San Jose, CA (US); Jamal Riani, Fremont, CA (US); Wen-Sin Liew, Singapore (SG); Yu Liao, Longmont, CO (US); and Changfeng Loi, Singapore (SG)
Assigned to MARVELL ASIA PTE LTD, Singapore (SG)
Filed by Marvell Asia PTE LTD., Singapore (SG)
Filed on Oct. 26, 2022, as Appl. No. 17/974,072.
Application 17/974,072 is a continuation of application No. 17/224,835, filed on Apr. 7, 2021, abandoned.
Application 17/224,835 is a continuation of application No. 16/825,637, filed on Mar. 20, 2020, granted, now 11,005,690.
Int. Cl. H04L 25/03 (2006.01); G01R 13/34 (2006.01); G01R 19/25 (2006.01); H03F 1/32 (2006.01); H04L 25/02 (2006.01); H04L 25/49 (2006.01)
CPC H04L 25/03859 (2013.01) [G01R 13/345 (2013.01); G01R 19/2509 (2013.01); H03F 1/32 (2013.01); H04L 25/025 (2013.01); H04L 25/03343 (2013.01); H04L 25/49 (2013.01); H03F 2200/66 (2013.01); H03F 2201/3233 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A transmitter comprising:
a shift register configured to receive an input signal and to output delayed copies of the input signal;
a lookup table configured to store compensation values estimated based on the input signal and the delayed copies of the input signal; and
a digital to analog converter configured to output a transmit signal based on the input signal and the compensation values, the compensation values designed to mitigate distortion of the transmit signal from conversion of the input signal to a digital signal.