Location History:
- Dongguan, CN (2019)
- Guangdong, CN (2014 - 2023)
- Chang'an Dongguan, CN (2022 - 2024)
Company Filing History:
7 out of 1,567 
2 out of 467 
2 out of 6 Years Active: 2014-2025
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.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.