Company Filing History:
Years Active: 1983
Title: Shigefumi Takeuchi: Innovator in Carrier Wave Recovery Circuits
Introduction
Shigefumi Takeuchi is a notable inventor based in Nagano, Japan. He has made significant contributions to the field of telecommunications, particularly in the development of carrier wave recovery circuits. His innovative work has implications for various image information transmitting systems, including facsimile technology.
Latest Patents
Shigefumi Takeuchi holds a patent for a carrier wave recovery circuit. This circuit is designed to be utilized on the receiving side of an image information transmitting apparatus. It features an N-bit counter that counts reference clock pulses for a duration corresponding to 2L cycle periods of the received carrier signal. The design includes a first latch that retains the most significant bits from the N-bit counter and a second latch for the least significant bits. Additionally, a frequency divider adjusts the frequency dividing ratio based on the output from the first latch, ensuring accurate recovery of the carrier signal.
Career Highlights
Takeuchi is associated with Fuji Xerox Co., Ltd., where he has been able to apply his expertise in developing advanced technologies. His work has been instrumental in enhancing the efficiency and reliability of image transmission systems.
Collaborations
Throughout his career, Shigefumi Takeuchi has collaborated with esteemed colleagues such as Tomio Murayama and Fumio Miyao. These partnerships have fostered innovation and contributed to the advancement of technology in their field.
Conclusion
Shigefumi Takeuchi's contributions to the field of telecommunications, particularly through his patent on carrier wave recovery circuits, highlight his role as an influential inventor. His work continues to impact the efficiency of image information transmission systems.