Akira Horikawa

Title: Akira Horikawa: Innovator in Signal Processing Technologies

Introduction

Akira Horikawa is a notable inventor based in Chiba, Japan. He has made significant contributions to the field of signal processing, holding a total of 4 patents. His work focuses on developing advanced circuits that enhance the performance and reliability of electronic systems.

Latest Patents

Horikawa's latest patents include a signal compensation circuit and a demodulating circuit with high-speed and low-speed feedback loops. The signal compensation circuit is designed to compensate for direct-current offset of an input signal by amplifying it with an amplifier that has a variable direct-current offset. This circuit employs a low-speed negative feedback loop that charges and discharges a capacitor in an integrating circuit based on the direct-current component of the amplified signal. Additionally, a high-speed negative feedback loop operates at a faster rate when the amplified signal exceeds an allowable amplitude range. This innovative approach allows for high-speed compensation while maintaining tolerance for runs of identical code levels in the input signal.

Another significant patent is the differential voltage to current converter, which features transistors of different sizes. This voltage/current converting circuit includes a differential circuit with a first input terminal for receiving an input voltage signal and a second input terminal for a reference voltage signal. The output terminal generates an electrical current based on the comparison of these signals. The differential circuit consists of two transistors, each with distinct dimensions, enhancing the circuit's performance.

Career Highlights

Horikawa is currently employed at Oki Electric Industry Co., Ltd., where he continues to innovate and develop cutting-edge technologies. His work has been instrumental in advancing the capabilities of electronic devices, particularly in signal processing applications.

Collaborations

Throughout his career, Horikawa has collaborated with talented individuals such as Akira Yoshida and Shuichi Matsumoto. These collaborations have fostered a creative environment that has led to the development of groundbreaking technologies.

Conclusion

Akira Horikawa's contributions to signal processing technology exemplify his innovative spirit and dedication to advancing electronic systems. His patents reflect a deep understanding of circuit design and a commitment to improving the performance of electronic devices.