US 12,256,202 B2
Stereo enhancement system and stereo enhancement method
Chia-Ping Chen, Zhubei (TW); Chih-Sheng Chen, Zhubei (TW); Hua-Jun Hong, Zhubei (TW); Chien-Hua Hsu, Zhubei (TW); Jen-Feng Li, Zhubei (TW); Wei-An Chang, Zhubei (TW); and Tsung-Liang Chen, Zhubei (TW)
Assigned to INTELLIGO TECHNOLOGY INC., Zhubei (TW)
Filed by INTELLIGO TECHNOLOGY INC., Zhubei (TW)
Filed on Dec. 7, 2022, as Appl. No. 18/062,653.
Claims priority of application No. 111126730 (TW), filed on Jul. 15, 2022.
Prior Publication US 2024/0022855 A1, Jan. 18, 2024
Int. Cl. H04R 3/00 (2006.01); H04R 1/40 (2006.01); H04S 7/00 (2006.01)
CPC H04R 3/005 (2013.01) [H04R 1/406 (2013.01); H04S 7/303 (2013.01); H04R 2203/12 (2013.01); H04R 2430/23 (2013.01); H04S 2420/01 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A stereo enhancement system, comprising:
a beamforming unit, configured to receive a plurality of input sound signals and generate a plurality of beamforming sound signals corresponding to a plurality of direction intervals respectively; and
a signal processing unit, coupled to the beamforming unit, configured to receive the plurality of beamforming sound signals corresponding to the plurality of direction intervals respectively and generate a first synthesized output sound signal and a second synthesized sound signal accordingly;
wherein the signal processing unit comprises:
a plurality of head-related transfer function (HRTF) units, coupled to the beamforming unit and corresponding to the plurality of direction intervals respectively, and each HRTF unit in the plurality of HRTF units receiving a corresponding beamforming sound signal in the plurality of beamforming sound signals and calculating the beamforming sound signal to generate a first output sound signal and a second output sound signal;
a first synthesis unit, coupled to the plurality of HRTF units, configured to synthesize a plurality of first output sound signals generated by the plurality of HRTF units into the first synthesized output sound signal; and
a second synthesis unit, coupled to the plurality of HRTF units, configured to synthesize a plurality of second output sound signals generated by the plurality of HRTF units into the second synthesized output sound signal.