Location History:
- Yokosuka, JP (2007 - 2010)
- Musashino, JP (2017)
- Tokyo-to, JP (2017)
Company Filing History:
6 out of 5,291 
5 out of 39,248 
Years Active: 2007-2017
Title: Akira Naka: Innovator in Digital Signal Processing and Optical Transmission Systems
Introduction
Akira Naka is a prominent inventor based in Yokosuka, Japan. He has made significant contributions to the fields of digital signal processing and optical transmission systems. With a total of 7 patents to his name, Naka's work has had a considerable impact on technology.
Latest Patents
One of Naka's latest patents is a digital signal processing device. This device performs digital signal processing of a digital signal using a statistical analysis method. It calculates a moving average and a standard deviation from the digital signal, allowing for statistical decision-making to determine if the signal is within a predetermined range. The device corrects signals that fall outside this range, effectively suppressing transient changes without increasing the number of averaging instances during processing.
Another notable patent is for an optical transmission system. This system features a receiver with two coherent receivers that utilize local oscillators at optical frequencies. The local oscillators are controlled to maintain a specific optical frequency spacing. The digital signal processor within the system demodulates transmission data signal sequences based on outputs from the coherent receivers. This innovative approach allows for precise compensation of phase rotation caused by frequency differences.
Career Highlights
Throughout his career, Akira Naka has worked with notable companies such as Nippon Telegraph and Telephone Corporation and Fujitsu Corporation. His experience in these organizations has contributed to his expertise in developing advanced technologies.
Collaborations
Naka has collaborated with several talented individuals, including Shinichirou Harasawa and Gentaro Funatsu. These collaborations have fostered innovation and creativity in his projects.
Conclusion
Akira Naka's contributions to digital signal processing and optical transmission systems highlight his role as a leading inventor in the technology sector. His patents reflect a commitment to advancing the field and improving the efficiency of signal processing.