US 12,438,688 B2
Capacitive hybrid with PGA for full duplex transceivers
Jingguang Wang, Irvine, CA (US); and Kambiz Vakilian, Irvine, CA (US)
Assigned to Avago Technologies International Sales Pte. Limited, Singapore (SG)
Filed by Avago Technologies International Sales Pte. Limited, Singapore (SG)
Filed on Jul. 2, 2024, as Appl. No. 18/761,818.
Application 18/761,818 is a continuation of application No. 17/152,369, filed on Jan. 19, 2021, granted, now 12,058,083.
Claims priority of provisional application 63/112,933, filed on Nov. 12, 2020.
Prior Publication US 2024/0356719 A1, Oct. 24, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 5/14 (2006.01); H04B 1/403 (2015.01)
CPC H04L 5/1415 (2013.01) [H04B 1/406 (2013.01); H04L 5/1423 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A device comprising:
a first portion of circuitry coupled between an output of a communication channel and a node between a transmitter and the communication channel;
a second portion of circuitry comprising a first resistor having a first resistance coupled between a first output of the transmitter and the node;
a third portion of circuitry coupled between the node and an input of an amplifier; and
a fourth portion of circuitry comprising a second resistor having a second resistance coupled between the input of the amplifier and a second output of the transmitter, wherein the device is configured to use a second transmit signal from the second output of the transmitter to cancel a first transmit signal from the first output of the transmitter based at least on a ratio of the first resistance and the second resistance.