This inventor holds 3 USPTO granted patents. Top assignee: Matsushita Electric Industrial Co., Ltd.. Active years: 1999-2002.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Matsubara, JP (1999 - 2000)
- Osaka, JP (2002)
Company Filing History:
Years Active: 1999-2002
Title: Shigeru Soga: Innovator in Signal Processing Technologies
Introduction
Shigeru Soga is a notable inventor based in Matsubara, Japan. He has made significant contributions to the field of signal processing, holding a total of 3 patents. His work focuses on enhancing the efficiency and functionality of signal waveform equalization and demodulation apparatuses.
Latest Patents
One of Soga's latest patents is a signal waveform equalizer apparatus that integrates Automatic Frequency Control (AFC) and Automatic Phase Control (APC) functions with waveform equalization. This innovation aims to reduce the circuit size of a signal waveform equalizer apparatus. The waveform equalization section is divided into a Feed-Forward Equalizer (FFE) block and a Decision Feedback Equalizer (DFE) block, with an AFC/APC block positioned between them. The AFC/APC block updates coefficients used for removing frequency and phase errors through an LMS algorithm, enhancing the overall performance of the equalizer.
Another significant patent involves a demodulation apparatus that performs various frequency control functions. In this invention, a Quadrature Phase Shift Keying (QPSK) modulation signal is processed through frequency conversion into an Intermediate Frequency (IF) signal. This signal is then converted into a baseband signal by a quadrature demodulator. The apparatus includes a carrier recovery circuit that compensates for offset frequencies detected by an AFC circuit, ensuring that frequency deviations remain within acceptable limits.
Career Highlights
Shigeru Soga is currently employed at Matsushita Electric Industrial Co., Ltd., where he continues to innovate in the field of signal processing. His work has been instrumental in developing technologies that enhance communication systems and improve signal integrity.
Collaborations
Soga has collaborated with notable coworkers, including Takaya Hayashi and Daisuke Hayashi. Their combined expertise has contributed to the advancement of technologies in their field.
Conclusion
Shigeru Soga's contributions to signal processing through his innovative patents demonstrate his commitment to advancing technology. His work not only enhances the efficiency of communication systems but also showcases the importance of collaboration in the field of invention.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile