Location History:
- Saitama, JP (1989 - 1991)
- Koufu, JP (1995 - 1996)
- Tokorozawa, JP (1995 - 1997)
Company Filing History:
6 out of 2,861 
5 out of 96 
1 out of 64 Years Active: 1989-1997
Title: Innovations of Masahiro Nakajima
Introduction
Masahiro Nakajima is a notable inventor based in Koufu, Japan. He has made significant contributions to the field of video signal processing, holding a total of eight patents. His work has advanced the technology used in digital time base correction, which is crucial for high-quality video reproduction.
Latest Patents
One of Nakajima's latest patents is a digital time base corrector for reproducing video signals. This invention utilizes a memory for correcting time base issues, which also serves to compensate for drop-outs in video signals. The corrector features an image memory that can store digital video signals for just two horizontal scan periods. When a drop-out occurs, the system inhibits writing into the image memory and instead retrieves video data from before the drop-out, effectively replacing the lost portion with data of the same phase.
Another significant patent is a digital time base corrector that employs a memory with reduced storage capacity to lower costs. In this design, absolute value data and polarity data of a burst signal in a color video signal are written into memory during each horizontal scan period. The system eliminates sync signal intervals, pedestal level intervals, and burst signal intervals, writing only image data into memory. The read-out process then reconstructs the burst signal data based on the stored absolute value and polarity data, allowing for the reproduction of a complete color video signal.
Career Highlights
Masahiro Nakajima has worked with prominent companies in the electronics industry, including Pioneer Electronic Corporation and Pioneer Video Corporation. His experience in these organizations has allowed him to develop and refine his innovative technologies in video processing.
Collaborations
Throughout his career, Nakajima has collaborated with talented individuals such as Tutomu Banno and Tadayoshi Kobayashi. These partnerships have contributed to the advancement of his inventions and the overall progress in the field of video technology.
Conclusion
Masahiro Nakajima's contributions to video signal processing through his innovative patents have significantly impacted the industry. His work continues to influence the development of high-quality video reproduction technologies.