Location History:
- Dobashi, JP (1983)
- Kawasaki, JP (1983 - 1994)
Company Filing History:
Years Active: 1983-1994
Title: The Innovative Contributions of Shoji Hiraoka
Introduction
Shoji Hiraoka is a notable inventor based in Kawasaki, Japan. He has made significant contributions to the field of speech recognition technology. With a total of 5 patents to his name, Hiraoka's work has advanced the capabilities of machines to understand and process human speech.
Latest Patents
Hiraoka's latest patents focus on methods of speech recognition. One of his innovative approaches involves generating a set of 'm' feature parameters from reference speech, which is spoken by at least one speaker. This method utilizes a collection of 'n' standard patterns derived from the speech data of multiple speakers. By matching the feature parameters of the reference speech with these standard patterns, Hiraoka's technology can generate a vector of 'n' reference similarities. This process is crucial for recognizing input speech by analyzing and collating similarity vectors to achieve accurate recognition results.
Another patent describes a method that analyzes input speech frame by frame. It derives feature parameters and generates an input vector from these parameters. The method periodically calculates partial distances between the input vector and standard patterns, which correspond to recognition-object words. By comparing these distances, the system can determine the recognition result based on the minimum distance when the input speech concludes.
Career Highlights
Hiraoka is currently employed at Matsushita Electric Industrial Co., Ltd., a company renowned for its innovations in electronics and technology. His work there has been instrumental in developing advanced speech recognition systems that have applications in various industries.
Collaborations
Throughout his career, Hiraoka has collaborated with talented individuals such as Katsuyuki Niyada and Masakatsu Hoshimi. These collaborations have fostered a creative environment that has led to groundbreaking advancements in speech recognition technology.
Conclusion
Shoji Hiraoka's contributions to speech recognition technology exemplify the impact of innovative thinking in the field of electronics. His patents and collaborative efforts continue to shape the future of how machines interact with human speech.