Inventors with similar research interests:
Location History:
- Kanagawa, JP (2002 - 2005)
- Kawasaki, JP (1989 - 2013)
- Shibuya, JP (2015)
Company Filing History:
64 out of 39,244 
1 out of 31 
1 out of 4,714 
Years Active: 1989-2015
Areas of Expertise:
Title: Innovations by Yasuyuki Oishi: A Pioneer in Distortion Compensation Technology
Introduction
Yasuyuki Oishi, based in Kawasaki, Japan, is an accomplished inventor recognized for his significant contributions to the field of signal processing and amplifier technology. With an impressive portfolio of 65 patents, Yasuyuki has paved the way for advancements in distortion compensation methods and transmission apparatuses critical for improving signal quality.
Latest Patents
Among his latest innovations are patents for a distortion compensating apparatus, a transmitter, a distortion compensating method, and a transfer function calculating method. The distortion compensating apparatus introduces an advanced amplifier module, which utilizes a model comprising a first linear time-invariant filter to limit the bandwidth of an input signal. This module integrates an amplifier unit responsible for amplifying signals and a second filter to manage the output signal. A notable feature of this technology is the memoryless amplifier unit that retrieves output signals based on AM-to-AM and AM-to-PM distortion characteristics. Furthermore, it leverages a cross-correlation calculating unit to derive correlation estimates between the actual output signals and those calculated within the memoryless framework, allowing for an efficient distortion compensation process.
Additionally, his transmission apparatus patents elaborate on a novel system that incorporates an analog digital converter. This system samples and digitizes a demodulated signal, enhancing performance by addressing intermodulation distortion components through a sophisticated distortion compensation section.
Career Highlights
Yasuyuki Oishi has held positions at prominent companies, including Fujitsu Corporation and Fujitsu Limited. His roles in these organizations enabled him to push the boundaries of technologies that are essential in today’s telecommunications and broadcasting sectors.
Collaborations
During his career, Yasuyuki Oishi has worked alongside esteemed colleagues such as Kazuo Nagatani and Hajime Hamada. Together, they have contributed to meaningful innovations in their industry, fostering a collaborative environment that stimulates creativity and technical advancement.
Conclusion
Yasuyuki Oishi's impact as an inventor is marked by his dedication to enhancing signal processing and amplification technologies. With his extensive patent portfolio and collaborative spirit, he continues to influence the field and lay the groundwork for future innovations in distortion compensation and transmission systems. Yasuyuki's work remains a significant asset in advancing the capabilities of modern communication technologies.