US Patent Issued to Huawei Technologies'Co., 'Ltd.' on Aug. 12 for "Very short pitch detection and coding" (American, Chinese Inventors)

ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,387,737, issued on Aug. 12, was assigned to Huawei Technologies'Co.'Ltd.' (Shenzhen, China).

"Very short pitch detection and coding" was invented by Yang Gao (Mission Viejo, Calif.) and Fengyan Qi (Shenzhen, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method includes detecting whether there is a very short pitch lag in a speech or audio signal that is shorter than a conventional minimum pitch limitation using a combination of time domain and frequency domain pitch detection techniques. The pitch detection techniques include using pitch correlations in a time domain and detecting a lack of low frequency energy in the speech or audio signal in ...