Location History:
- Tokyo, JP (1993)
- Hino, JP (1992 - 2003)
Company Filing History:
Years Active: 1992-2003
Title: Hidetaka Yoshikawa: Innovator in ATM Transmission Equipment and Variable Rate Coding
Introduction
Hidetaka Yoshikawa is a prominent inventor based in Hino, Japan. He has made significant contributions to the field of telecommunications, particularly in the development of ATM transmission equipment and variable rate coder/decoder systems. With a total of 5 patents to his name, Yoshikawa's work has had a substantial impact on the efficiency and reliability of data transmission.
Latest Patents
Yoshikawa's latest patents include innovative technologies such as ATM transmission equipment. This equipment is designed to be implemented between existing exchanges or terminals of carrier equipment. It can emulate existing transmission paths and implement T point interfaces for in-home units. The ATM transmission equipment is capable of detecting communication anomalies and extracting maintenance or operation information from data strings on STM lines. It replaces only the necessary information with alarm signals, which are then transmitted to the ATM network.
Another notable patent is the variable rate coder/decoder system. This system features a quantizer controlled by a quantization controller, which quantizes a signal obtained from a difference signal between an input signal and a previous frame stored in a frame memory. The system maintains a constant quality of data transmission, even when the amount of input data varies, by utilizing variable length encoders.
Career Highlights
Yoshikawa is currently employed at Kabushiki Kaisha Toshiba, where he continues to innovate and develop cutting-edge technologies. His work has been instrumental in advancing telecommunications systems, making them more efficient and reliable.
Collaborations
Throughout his career, Yoshikawa has collaborated with notable colleagues, including Masami Akamine and Kimio Miseki. These collaborations have contributed to the successful development of various technologies in the telecommunications sector.
Conclusion
Hidetaka Yoshikawa's contributions to the field of telecommunications through his patents and innovations have significantly enhanced data transmission technologies. His work continues to influence the industry, showcasing the importance of innovation in modern communication systems.