US 12,301,769 B2
Echo cancellation
Robert D. Rand, Peebles (GB); Jon E. Eklund, Austin, TX (US); Pradeep Saminathan, Edinburgh (GB); and Peter Horsfall, Edinburgh (GB)
Assigned to Cirrus Logic Inc., Austin, TX (US)
Filed by Cirrus Logic International Semiconductor Ltd., Edinburgh (GB)
Filed on Dec. 1, 2022, as Appl. No. 18/073,062.
Claims priority of provisional application 63/292,181, filed on Dec. 21, 2021.
Claims priority of application No. 2201333 (GB), filed on Feb. 2, 2022.
Prior Publication US 2023/0199122 A1, Jun. 22, 2023
Int. Cl. H04M 9/08 (2006.01); H04R 3/12 (2006.01)
CPC H04M 9/082 (2013.01) [H04R 3/12 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An audio system comprising:
an amplifier configured to output a first amplified audio signal to a speaker, wherein the audio system is configured to transmit a signal for echo cancellation, and wherein the signal for echo cancellation is based on the orientation of the speaker; and
a combiner configured to:
receive the first amplified audio signal from the amplifier;
receive a second audio signal;
combine the first amplified audio signal and second audio signal into a combined signal; and
output the combined signal, wherein the combined signal comprises the signal for echo cancellation.