This inventor holds 3 USPTO granted patents. Top assignee: Nec Corporation. Active years: 1987-2003.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 1987-2003
Title: The Innovations of Tamio Okui
Introduction
Tamio Okui is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of broadcasting and demodulation technologies. With a total of 3 patents to his name, Okui's work has had a considerable impact on the industry.
Latest Patents
One of Okui's latest patents is titled "System, method, and medium for broadcasting service contents." This invention involves a Conditional Access (CA) server that generates and encrypts a work key (Kw) to deliver to receiving terminals. The CA server updates the scramble key (Ks) at predetermined intervals and sends it to the terminals. The contents server encrypts service contents using both the Kw and Ks, delivering them to a specific IP address. The receiving terminals decode the encrypted contents using the provided keys, ensuring secure content delivery.
Another significant patent is related to a "Demodulator circuit and demodulating method employing bit error rate." This invention features a demodulator circuit that utilizes a phase-locked loop for carrier recovery. The loop filter's band is controlled by a control signal based on the detected bit error rate of the demodulated outputs. This innovative approach allows for precise control of the loop filter band without relying on additional signal power detectors.
Career Highlights
Tamio Okui is currently employed at NEC Corporation, where he continues to develop cutting-edge technologies. His work at NEC has positioned him as a key player in the advancement of broadcasting and communication systems.
Collaborations
Throughout his career, Okui has collaborated with esteemed colleagues such as Tomoyoshi Ishikawa and Shinichi Kono. These partnerships have fostered innovation and contributed to the success of various projects.
Conclusion
Tamio Okui's contributions to the field of technology through his patents and work at NEC Corporation highlight his role as a leading inventor. His innovative solutions in broadcasting and demodulation continue to influence the industry.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile