This inventor holds 3 USPTO granted patents and 1 published patent application. Top assignees: Intel Corporation, Chinese Academy of Sciences, Sony Corporation. Active years: 2008-2015.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
2 out of 56,394 
1 out of 3,364 
1 out of 58,148 
Years Active: 2008-2015
Title: Innovations of Qingwei Zhao
Introduction
Qingwei Zhao is a notable inventor based in Beijing, China. He has made significant contributions to the field of multimedia content retrieval and speech recognition technology. With a total of 3 patents, his work has advanced the capabilities of program endpoint detection and information retrieval systems.
Latest Patents
Qingwei Zhao's latest patents include a "Program Endpoint Time Detection Apparatus and Method" and a "Program Information Retrieval System." The first invention focuses on detecting the endpoint time of a program by processing audio signals. It features an audio classification unit that distinguishes between speech and non-speech portions, a keyword retrieval unit for identifying candidate endpoint keywords, and a content analysis unit that validates these keywords. The second invention provides a system for rapidly obtaining program information attended by users.
Another significant patent is the "Method and System for Expanding a Word Graph to a Phone Graph Based on a Cross-Word Acoustical Model." This invention enhances continuous speech recognition by expanding a word graph into a phone graph, which reduces memory consumption and computation costs. The phone graph improves system performance and lowers the continuous speech recognition error rate.
Career Highlights
Qingwei Zhao has worked with prominent companies such as Intel Corporation and Sony Corporation. His experience in these leading technology firms has contributed to his expertise in developing innovative solutions in the field of audio processing and speech recognition.
Collaborations
Some of his notable coworkers include Yonghong Yan and Chunrong Lai. Their collaboration has likely fostered an environment of innovation and creativity, leading to advancements in their respective fields.
Conclusion
Qingwei Zhao's contributions to multimedia content retrieval and speech recognition technology demonstrate his innovative spirit and technical expertise. His patents reflect a commitment to improving user experience and system performance in audio processing.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile