Location History:
- Tokyo, JP (1991)
- Ebina, JP (1993)
Company Filing History:
2 out of 374 
1 out of 16,458 
1 out of 4 
Years Active: 1991-1993
Title: Hotaka Minaguchi: Innovator in Digital Signal Processing
Introduction
Hotaka Minaguchi is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of digital signal processing, holding three patents that showcase his innovative approach to technology. His work has had a profound impact on the way digital signals are recorded and reproduced.
Latest Patents
One of Minaguchi's latest patents is a digital signal recording/reproducing system. This system features an adaptive automatic equalizer designed for automatic waveform equalization within the reproducing circuit of an RF system. The invention includes a run-up code generator that produces a run-up pattern composed of a combination of at least two digital value series with different inversion intervals. This design ensures stable operation of the adaptive automatic equalizer and clock reproducing PLL during reproduction, minimizing code errors.
Another significant patent is a digital modulation method that modulates 8-bit digital data into 14-bit digital modulation codes. This method restricts the number of consecutive identical bits in the 14-bit codes to between 2 and 7. Additionally, it limits the absolute value of DSV at the end of each code to 2 or less, effectively reducing the direct current component of the modulation codes.
Career Highlights
Minaguchi has worked with prominent companies such as Nippon Hoso Kyokai and Fuji Photo Film Company, Limited. His experience in these organizations has allowed him to refine his skills and contribute to various innovative projects in the field of digital technology.
Collaborations
Throughout his career, Minaguchi has collaborated with talented individuals, including Toshihiro Uehara and Yoshinobu Oba. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies.
Conclusion
Hotaka Minaguchi's contributions to digital signal processing through his patents and collaborations highlight his role as a key innovator in the field. His work continues to influence advancements in technology and signal processing.