This inventor holds 30 USPTO granted patents and 41 published patent applications and 7 EPO patents, primarily in Wireless Communication. Top assignees: Vivo Mobile Communication., Ltd., Vivo Mobile Communication Co., Ltd., Gree Electric Appliances, Inc. of Zhuhai. Active years: 2014-2026.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Dongguan, CN (2019)
- Guangdong, CN (2014 - 2023)
- Chang'an Dongguan, CN (2022 - 2024)
Company Filing History:
10 out of 500 
8 out of 1,645 
2 out of 490 
Years Active: 2014-2026
Areas of Expertise:
Title: Innovations of Hao Liu in Audio Processing Technologies
Introduction
Hao Liu is a prominent inventor based in Guangdong, China, known for his significant contributions to audio processing technologies. With a total of 18 patents to his name, Liu has developed innovative methods and devices that enhance audio feature extraction and improve robustness against background noise.
Latest Patents
Among his latest patents is a divisive normalization method, device, audio feature extractor, and a chip. This invention aims to improve the robustness against variations of background noise. The proposed per-channel divisive normalization method involves obtaining an average number of input spikes over an averaging window using a low-pass filter to produce a threshold parameter. It then decides whether to enable an integrate-and-fire (IAF) counter counting over a clock period of a divisive normalization module. When the count value of the IAF counter reaches the threshold, it resets the IAF counter and produces a single spike at the output. Compared to prior art, this method does not require any Linear Feedback Shift Register (LFSR) and is easier to implement. It features a simpler structure, higher accuracy, better statistical performance, lower cost, and reduced power consumption.
Career Highlights
Hao Liu has worked with notable companies such as Vivo Mobile Communication Co., Ltd. and Gree Electric Appliances, Inc. of Zhuhai. His experience in these organizations has allowed him to refine his skills and contribute to the development of cutting-edge technologies in the audio processing field.
Collaborations
Liu has collaborated with talented individuals in his field, including Peng Sun and Xiaodong Sun. These partnerships have fostered innovation and have been instrumental in the success of his projects.
Conclusion
Hao Liu's work in audio processing technologies showcases his innovative spirit and dedication to improving audio feature extraction methods. His contributions have the potential to significantly impact the industry and enhance user experiences in various applications.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile