Ning Qiao

Title: Innovations of Ning Qiao in Audio Feature Extraction and Noise Filtering

Introduction

Ning Qiao is a notable inventor based in Guangdong, China. He has made significant contributions to the fields of audio feature extraction and noise filtering technologies. With a total of 2 patents, his work focuses on improving the robustness and efficiency of various devices.

Latest Patents

Ning Qiao's latest patents include a divisive normalization method, device, audio feature extractor, and a chip. This innovative method enhances robustness against background noise variations. It involves obtaining an average number of input spikes over an averaging window using a low-pass filter to produce a threshold parameter. The method then decides whether to enable an integrate-and-fire (IAF) counter during a clock period of a divisive normalization module. When the count value of the IAF counter reaches the threshold, it resets the counter and produces a single spike at the output. Compared to prior art, this method does not require any Linear Feedback Shift Register (LFSR), making it easier to implement. It boasts a simpler structure, higher accuracy, better statistical performance, lower cost, and reduced power consumption.

Another significant patent focuses on noise filtering for dynamic vision sensors. This patent provides a noise filtering device, method, and chip for dynamic vision sensors (DVS) and event-driven vision devices. The solution meets multi-dimensional requirements such as power consumption, delay, storage resources, calculation resources, denoising effect, applicable range of noise types, and hardware implementation difficulty. The disclosure aggregates global space-domain and time-domain information in a shift register, allowing for effective noise event judgment based on clustering of these informations. This approach achieves excellent denoising performance while maintaining advantages in parallel and simple calculations without dependence on DVS resolution.

Career Highlights

Ning Qiao is currently employed at Shenzhen Synsense Technology Co., Ltd. His work at this company has allowed him to further develop his innovative ideas and contribute to advancements in technology.

Collaborations

Ning collaborates with talented individuals such as LingYun Ke and Weitao Zeng, who contribute to his projects and innovations.

Conclusion

Ning Qiao's contributions to audio feature extraction and noise filtering technologies demonstrate his innovative spirit and commitment to advancing the field. His patents reflect a deep understanding of the challenges in these areas and provide effective solutions that enhance device