US 11,057,006 B2
Systems and methods for full duplex amplification
Thomas Holtzman Williams, Longmont, CO (US); and Belal Hamzeh, Westminster, CO (US)
Assigned to Cable Television Laboratories, Inc., Louisville, CO (US)
Filed by CABLE TELEVISION LABORATORIES, INC, Louisville, CO (US)
Filed on May 18, 2020, as Appl. No. 16/876,321.
Application 16/876,321 is a continuation of application No. 16/663,100, filed on Oct. 24, 2019, granted, now 10,658,989.
Application 16/663,100 is a continuation in part of application No. 16/177,428, filed on Nov. 1, 2018, granted, now 10,491,361, issued on Nov. 26, 2019.
Claims priority of provisional application 62/579,648, filed on Oct. 31, 2017.
Claims priority of provisional application 62/749,774, filed on Oct. 24, 2018.
Prior Publication US 2020/0280289 A1, Sep. 3, 2020
Int. Cl. H04L 5/14 (2006.01); H03F 3/189 (2006.01); H03F 3/68 (2006.01); H04L 12/28 (2006.01); H03F 3/62 (2006.01)
CPC H03F 3/189 (2013.01) [H03F 3/62 (2013.01); H03F 3/68 (2013.01); H04L 5/14 (2013.01); H04L 12/2801 (2013.01); H03F 2200/111 (2013.01); H03F 2200/451 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An amplification subsystem for amplifying signals traveling between first and second transceivers in a communication system, comprising:
a first amplifier configured to amplify first signals traveling from the first transceiver to the second transceiver;
a second amplifier configured to amplify second signals traveling from the second transceiver to the first transceiver; and
circuitry configured to:
propagate the first signals, within a first frequency band, to the first amplifier,
selectively propagate the first signals, within a second frequency band that is different from the first frequency band, to the first amplifier,
propagate the second signals, within a third frequency band, to the second amplifier, and
selectively propagate the second signals, within a fourth frequency band that is different from the third frequency band, to the second amplifier.