Xin Jin

Title: Innovations of Inventor Xin Jin

Introduction

Xin Jin is an accomplished inventor based in Irvine, CA. He holds a total of 2 patents that showcase his expertise in voice energy detection and analog-to-digital conversion technologies. His innovative contributions have significantly impacted the fields of audio processing and signal conversion.

Latest Patents

One of Xin Jin's latest patents is the Voice Energy Detection (VED) system. This system utilizes a VED circuit along with a capture buffer to enhance performance while minimizing power dissipation. By assigning a VED to each microphone, the system combines outputs from multiple VEDs to improve detection probability and reduce false alarm rates. This approach enhances the post-detection signal-to-noise ratio. The VED circuits are dynamically selected based on background energy and detection performance. Additionally, a digital VED algorithm adjusts the oversampling ratio (OSR) and passband bandwidth according to the loudness of background noise and desired signal levels. If the desired signal or noise is strong, the OSR is reduced to conserve power. Conversely, if desired speech is detected, the OSR value increases to achieve the target signal-to-noise ratio for further audio processing needs.

Another significant patent is the Pipelined Interpolating Sub-Ranging SAR Analog-to-Digital Converter. This multi-bit per cycle successive approximation register (SAR) ADC samples an input signal and successively approximates it within a shrinking sub-range. It outputs coarse digital codes corresponding to this sub-range. The sub-ranging stage continues quantization by sampling and interpolating between zero crossing signals that bound the sub-range. This process is pipelined recursively in multiple stages to enhance throughput and efficiency.

Career Highlights

Xin Jin has worked with notable companies such as Avago Technologies and Broadcom Corporation. His experience in these organizations has allowed him to develop and refine his innovative technologies.

Collaborations

Throughout his career, Xin Jin has collaborated with talented individuals, including John S. Walley and Beng Huat Chua. These collaborations have contributed to his success and the advancement of his inventions.

Conclusion

Xin Jin's contributions to the fields of voice energy detection and analog-to-digital conversion demonstrate his innovative spirit and technical expertise. His patents reflect a commitment to improving technology and enhancing performance in audio processing.