Location History:
- Seki, JA (1977)
- Tokyo, JA (1977)
Company Filing History:
Years Active: 1977
Title: Fumio Kanaya: Innovator in Video Coding Technology
Introduction
Fumio Kanaya is a notable inventor based in Seki, Japan. He has made significant contributions to the field of video coding technology, holding 2 patents that showcase his innovative approach to encoding video signals.
Latest Patents
One of Kanaya's latest patents is a Frame-to-Frame Coding System. This invention involves feeding an input video signal to a subtractor, where a difference is calculated between the input and the output from a frame memory. The resulting difference signal is controlled by a magnitude adjuster and processed through a threshold circuit to derive a significant difference signal. This signal is then quantized by an encoder into a code with fewer bits compared to the original significant difference signal. The quantized code is stored in a buffer memory and transmitted at a uniform bit rate. Additionally, the system includes mechanisms to prevent buffer overflow by adjusting the magnitude based on occupancy detection.
Another significant patent is the Interframe Coding Apparatus. In this invention, an input signal is encoded by an interframe coder, with its output written into a buffer memory. A variable characteristics comb filter is integrated before the interframe coder to enhance the encoding process. The filter's characteristics are controlled based on buffer occupancy to prevent overflow, ensuring efficient data handling.
Career Highlights
Fumio Kanaya is associated with Nippon Telegraph and Telephone Public Corporation, where he has been instrumental in advancing video coding technologies. His work has contributed to the efficiency and effectiveness of video transmission systems.
Collaborations
Kanaya has collaborated with notable coworkers, including Hiroshi Yasuda and Hideo Kuroda. Their combined expertise has fostered innovation in their respective fields.
Conclusion
Fumio Kanaya's contributions to video coding technology through his patents reflect his innovative spirit and dedication to advancing the field. His work continues to influence the way video signals are processed and transmitted.