Company Filing History:
3 out of 374 
2 out of 78 
Years Active: 1980-1990
Title: Fumiyoshi Sasaki: Innovator in Video Signal Processing
Introduction
Fumiyoshi Sasaki is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of video signal processing, holding three patents that showcase his innovative approach to technology.
Latest Patents
One of his latest patents is a "Video ghost signal cancelling circuit having variable delay lines." This invention features an adding means that integrates a ghost canceling signal with a digital video signal, effectively eliminating ghost components. The ghost canceling signal generation means includes a variable delay filter composed of multiple variable delay lines, allowing for external control of the delay amount. Additionally, it incorporates transversal filters with controllable coefficients, ensuring precise output of the ghost canceling signal.
Another significant patent is the "Ghost canceling circuit." This circuit utilizes a Fourier transforming mechanism to convert a reference waveform from an analogue television signal into digital form. It holds and outputs a reference waveform Fourier coefficient, which is then processed to enhance the quality of the received television signal. The outputted Fourier coefficient is divided and reverse Fourier transformed, supplying the necessary data to a transversal filter for optimal performance.
Career Highlights
Fumiyoshi Sasaki has worked with prominent companies such as Nippon Hoso Kyokai and NEC Home Electronics, Inc. His experience in these organizations has allowed him to refine his skills and contribute to advancements in video technology.
Collaborations
Throughout his career, Sasaki has collaborated with esteemed colleagues, including Reiichi Kobayashi and Tadaaki Tanaka. These partnerships have fostered a creative environment that has led to innovative solutions in the field.
Conclusion
Fumiyoshi Sasaki's work in video signal processing has made a lasting impact on the industry. His patents reflect a deep understanding of technology and a commitment to innovation.