This inventor holds 1 USPTO granted patent. Top assignee: Kokusai Denshin Denwa Kabushiki Kaisha. Active years: 1981.
Company Filing History:
Years Active: 1981
Title: Hikoichi Ishigami: Innovator in Adaptive Pitch Detection Systems
Introduction
Hikoichi Ishigami is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of voice signal processing. His innovative work focuses on adaptive pitch detection systems, which have applications in various audio technologies.
Latest Patents
Ishigami holds a patent for an "Adaptive pitch detection system for voice signal." This system is designed to detect the pitch of a voice signal by determining multiple pitch searching periods. The unique aspect of this invention is that it ensures pitch components of multiple relationships are not included in each of the pitch searching periods. After detecting a pitch searching period that includes the pitch, the system adaptively shifts the searching periods to follow the predicted change direction of the pitch. This innovative approach enhances the accuracy of pitch detection in voice signals.
Career Highlights
Hikoichi Ishigami is associated with Kokusai Denshin Denwa Kabushiki Kaisha, a prominent company in the telecommunications sector. His work at this company has allowed him to develop and refine his inventions, contributing to advancements in voice signal processing technologies.
Collaborations
Ishigami has collaborated with notable colleagues, including Fumihiro Yato and Akira Kurematsu. These collaborations have fostered a creative environment that encourages innovation and the development of cutting-edge technologies.
Conclusion
Hikoichi Ishigami's contributions to adaptive pitch detection systems exemplify the importance of innovation in voice signal processing. His work not only enhances the accuracy of pitch detection but also paves the way for future advancements in audio technology.