Norikazu Fujie

Title: Norikazu Fujie: Innovator in Signal Processing Technology

Introduction

Norikazu Fujie is a notable inventor based in Yamanashi, Japan. He has made significant contributions to the field of signal processing, holding a total of 3 patents. His work has been instrumental in advancing technology related to telecommunications.

Latest Patents

Fujie's latest patents include a "Signal Processing Circuit for a Telephone Set." This innovative circuit features signal sending means that transmit sound signals from a telephone transmitter to a transmission line. It incorporates a first adding circuit that combines the transmission line signal with the transmitter's sound signal, an inverting circuit that phase-inverts the output from the first adding circuit, and an impedance element connecting the transmission line to the output of the inverting circuit. Additionally, a second adding circuit merges the output sound signal from the transmitter with the output from the inverting means, supplying the resulting composite signal to a telephone receiver.

Another significant patent is the "Signal Delay Generating Circuit." This circuit generates a delayed signal in response to a pulsed timing signal, ensuring that the delay time remains stable despite variations in supply voltage or temperature. It utilizes a voltage comparator that receives input from a voltage division point of a voltage dividing circuit connected to a voltage source. The circuit design allows for flexibility, including the option to use a flip-flop or a pair of comparators to achieve the desired delayed signal.

Career Highlights

Fujie has worked with prominent companies such as Pioneer Electronic Corporation and Pioneer Video Corporation. His experience in these organizations has contributed to his expertise in signal processing technologies.

Collaborations

Fujie has collaborated with notable individuals in his field, including Hitoshi Sugiyama and Saburo Takaoka. Their joint efforts have furthered advancements in technology and innovation.

Conclusion

Norikazu Fujie is a distinguished inventor whose work in signal processing has had a lasting impact on telecommunications. His patents reflect his innovative spirit and dedication to advancing technology.