This inventor holds 1 USPTO granted patent. Top assignee: Nec Corporation. Active years: 1992.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 1992
Title: Toshihisa Yoshida: Digital Communication System Inventor
Introduction
Toshihisa Yoshida is an inventor associated with Tokyo, Japan, and NEC Corporation. His recorded patent work concerns digital communication technology. The available information lists 1 patent in his name.
Latest Patents
Yoshida’s listed patent, “Digital Communication System Using Partial Response and Bipolar Coding,” describes a system for transmitting digital data over a metallic line. At the transmitter, a (1,0) precoder processes a unipolar digital data stream, and a bipolar converter transforms the resulting signal for transmission.
At the receiver, a digitizer and line-equalization filter process the received signal to address transmission-line losses. A (1,1) converter then reverses the bipolar conversion, while a clock-recovery circuit derives sample timing pulses. A decoder uses those pulses to detect symbols and reconstruct the original digital data stream.
Career Highlights
The patent reflects Yoshida’s work on signal encoding, transmission, and recovery in digital communications. The listed company associated with him is NEC Corporation.
Collaborations
The provided information names Botaro Hirosaki and Hiroshi Shimizu as Yoshida’s coworkers. It does not specify their roles in the patent or describe particular joint projects.
Conclusion
Toshihisa Yoshida’s recorded patent highlights an approach to reliable digital communication over metallic transmission lines through precoding, bipolar signaling, equalization, and decoding.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile