This inventor holds 1 USPTO granted patent. Top assignee: Sharp Kabushiki Kaisha Corporation. Active years: 1978.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 1978
Title: Sigekazu Fujiwara: Innovator in Digital Signal Processing
Introduction
Sigekazu Fujiwara is a notable inventor based in Nara, Japan. He has made significant contributions to the field of digital signal processing, particularly with his innovative patent related to frequency shift signal demodulation. His work has implications for various applications in telecommunications and signal analysis.
Latest Patents
Fujiwara holds a patent for a digital frequency shift signal demodulator. This invention includes a zero-crossing detector that identifies zero-crossings of frequency shift signals (FS). It features a pulse converter that generates a sequence of '0's and '1's, where '0' represents a time slot from the first detected zero-crossing through a specified period, and '1' represents a time slot from that period through the next succeeding zero-crossing. The system also incorporates a memory means that receives the outputs of the pulse converter, containing a train of pulses corresponding to the modulation rate. Additionally, a counter means counts the number of '1's or '0's within the memory in response to clock signals, while a determination circuit performs frequency discrimination by comparing the counts with a predetermined limit. Fujiwara's patent is a testament to his expertise and innovative thinking in the field.
Career Highlights
Sigekazu Fujiwara is associated with Sharp Corporation, a leading company in electronics and technology. His role at Sharp has allowed him to work on cutting-edge technologies and contribute to advancements in digital signal processing. His dedication to innovation is evident in his patent and the impact it has on the industry.
Collaborations
Fujiwara has collaborated with Akira Mitarai, a fellow innovator at Sharp Corporation. Their partnership exemplifies the collaborative spirit in research and development, leading to advancements in technology.
Conclusion
Sigekazu Fujiwara is a distinguished inventor whose work in digital signal processing has made a significant impact on the field. His patent for a digital frequency shift signal demodulator showcases his innovative capabilities and contributions to technology.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile