US 11,800,312 B2
Wireless audio system for recording an audio information and method for using the same
Weifeng Tong, Shanghai (CN); Liang Zhang, Shanghai (CN); and Mingliang Xu, Shanghai (CN)
Assigned to BESTECHNIC (SHANGHAI) CO., LTD., Shanghai (CN)
Filed by BESTECHNIC (SHANGHAI) CO., LTD., Shanghai (CN)
Filed on Feb. 4, 2021, as Appl. No. 17/167,302.
Application 17/167,302 is a continuation of application No. 17/107,876, filed on Nov. 30, 2020, granted, now 10,966,047.
Claims priority of application No. 202011087986.2 (CN), filed on Oct. 13, 2020.
Prior Publication US 2022/0116730 A1, Apr. 14, 2022
Int. Cl. H04S 7/00 (2006.01); G10L 25/21 (2013.01); H04R 1/08 (2006.01); H04R 1/10 (2006.01); H04R 5/033 (2006.01); H04R 29/00 (2006.01)
CPC H04S 7/304 (2013.01) [G10L 25/21 (2013.01); H04R 1/08 (2013.01); H04R 1/1041 (2013.01); H04R 5/033 (2013.01); H04R 29/001 (2013.01); H04R 1/1016 (2013.01); H04S 2400/11 (2013.01); H04S 2400/15 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A wireless audio system for recording an audio, comprising:
a first wireless headphone, a second wireless headphone, and a user equipment, wherein:
the first wireless headphone comprises:
a first audio collection module configured to collect a first audio signal;
a first timing module configured to generate a first counting signal by counting cycles according to a first local clock of the first wireless headphone; and
a first processing module, upon receiving a trigger from the first audio collection module, configured to:
generate a first synchronizing signal based on recording a value of the first counting signal from the first timing module; and
retrieve a portion of the first audio signal by direct memory access (DMA); the second wireless headphone configured to:
receive a wireless signal from the first wireless headphone, indicating the first local clock; and
synchronize a second local clock of the second wireless headphone with the first local clock based on the wireless signal, the second wireless headphone comprising:
a second audio collection module configured to collect a second audio signal;
a second timing module configured to generate a second counting signal by counting cycles according to the second local clock of the second wireless headphone; and
a second processing module, upon receiving a trigger from the second audio collection module, configured to:
generate a second synchronizing signal based on recording a value of the second counting signal from the second timing module; and
retrieve a portion of the second audio signal by DMA; and
the user equipment is configured to generate a 3D audio representation of the audio based on the first and the second audio signals and the first and the second synchronizing signals.