US 11,901,925 B2
Method and apparatus for cancelling front-end distortion
Ray Luan Nguyen, Fountain Valley, CA (US); Benjamin Tomas Reyes, Cordoba (AR); Geoffrey Hatcher, Lake Forest, CA (US); and Stephen Jantzi, Laguna Beach, CA (US)
Assigned to Marvell Asia Pte Ltd, Singapore (SG)
Filed by Marvell Asia Pte Ltd, Singapore (SG)
Filed on Jul. 20, 2022, as Appl. No. 17/813,753.
Claims priority of provisional application 63/224,276, filed on Jul. 21, 2021.
Prior Publication US 2023/0036435 A1, Feb. 2, 2023
Int. Cl. H04B 1/12 (2006.01); H04B 1/40 (2015.01)
CPC H04B 1/12 (2013.01) [H04B 1/40 (2013.01)] 19 Claims
OG exemplary drawing
 
1. Transceiver circuitry in an integrated circuit device, the transceiver circuitry comprising:
a receive path including:
an analog front end configured to receive analog signals from an analog transmission path and to condition the analog signals, and
an analog-to-digital converter configured to convert the conditioned analog signals into received digital signals for delivery to functional circuitry of the integrated circuit device; and
a transmit path including:
a digital front end configured to accept digital signals from the functional circuitry and to condition the accepted digital signals, and
a digital-to-analog converter configured to convert the conditioned digital signals into transmission analog signals for transmission onto the analog transmission path; wherein:
at least one of (a) the analog front end in the receive path, and (b) the digital front end in the transmit path, introduces distortion during signal conditioning and outputs a distorted conditioned signal in a respective one of the receive path and the transmit path; and
the transceiver circuitry further comprises at least one of:
receive path distortion correction circuitry at the analog front end, the receive path distortion correction circuitry being configured to determine and apply a receive path distortion cancellation function to cancel a distortion component from the distorted conditioned signal in the receive path prior to the delivery to the functional circuitry of the integrated circuit device, and
transmit path distortion correction circuitry at the digital front end, the transmit path distortion correction circuitry being configured to determine and apply a transmit path distortion cancellation function to cancel a distortion component from the distorted conditioned signal in the transmit path prior to conversion of the conditioned digital signals into the transmission analog signals for transmission onto the analog transmission path.