This inventor holds 2 USPTO granted patents. Top assignee: Mitsubishi Denki Kabushiki Kaisha. Active years: 2000-2006.
Company Filing History:
Years Active: 2000-2006
Title: Mari Matsunaga: Innovator in Communication Systems
Introduction
Mari Matsunaga is a prominent inventor based in Tokyo, Japan. She has made significant contributions to the field of communication systems, holding a total of 2 patents. Her work focuses on advanced demodulation techniques and signal quality measurement, which are crucial for enhancing communication technologies.
Latest Patents
Matsunaga's latest patents include a demodulator, receiver, and communication system. This innovative demodulator features a multiple symbol differential phase detector that calculates phase differences between a received signal and multiple prior signals. The output consists of N symbol differential phase detected signals, which are utilized by a soft decision sequence estimating unit to estimate transmitted differential phase sequences. This process employs a trellis diagram and the Viterbi algorithm to produce soft decision demodulated data.
Another notable patent is her signal quality measuring scheme. This invention includes a phase region deciding unit that identifies the phase region of the signal point. A counter unit then counts the number of signal points in each phase region. The weighted average calculating unit computes a weighted average based on previous results and the counter's output. Finally, a likelihood calculating unit assesses the weighted average of phase distribution, detects the maximum likelihood phase-distribution model, and outputs the corresponding signal quality.
Career Highlights
Matsunaga is currently employed at Mitsubishi Electric Corporation, where she continues to innovate in the field of communication technology. Her work has been instrumental in developing systems that improve the efficiency and reliability of communication networks.
Collaborations
Throughout her career, Matsunaga has collaborated with notable colleagues, including Toshiharu Kojima and Takashi Asahara. These partnerships have fostered a creative environment that encourages the development of cutting-edge technologies.
Conclusion
Mari Matsunaga is a trailblazer in the field of communication systems, with her innovative patents paving the way for advancements in technology. Her contributions are vital for the future of communication, and her work continues to inspire others in the industry.