Location History:
- Neyagawa, JA (1977)
- Fujisawa, JP (1983 - 1993)
Company Filing History:
Years Active: 1977-1993
Title: Harumasa Kajita: Innovator in Pay Television Technology
Introduction
Harumasa Kajita is a notable inventor based in Fujisawa, Japan. He has made significant contributions to the field of pay television technology, holding a total of 5 patents. His work has advanced the way television signals are processed and scrambled, enhancing the viewing experience for consumers.
Latest Patents
Kajita's latest patents include innovative technologies that improve pay television devices. One of his patents focuses on a pay television device that removes horizontal and vertical sync signals from a composite video signal. This invention attaches first-frequency and second-frequency signals for descrambling processing in the intervals where the signals were removed, thus eliminating the need for multiplexing signals that are necessary for descrambling processing on an audio signal.
Another significant patent is a key signal conversion device designed for use in a CATV television system. This device performs multiple scrambling processes and extracts a key signal for unscrambling the television signal. It includes a first detecting circuit that receives a scrambled television signal and detects a synchronizing signal. The device also features a gate circuit that extracts the key signal using the detected synchronizing signal, along with a second detecting circuit for the nonscrambled television signal. Finally, an inserting circuit superimposes the key signal onto the nonscrambled television signal during a predetermined horizontal interval.
Career Highlights
Harumasa Kajita is currently employed at Matsushita Electric Industrial Co., Ltd., a company known for its innovative electronic products. His work at Matsushita has allowed him to develop and refine technologies that have a lasting impact on the television industry.
Collaborations
Throughout his career, Kajita has collaborated with talented individuals such as Satoshi Nakanami and Noriyuki Kawamoto. These collaborations have contributed to the successful development of his patented technologies.
Conclusion
Harumasa Kajita's contributions to pay television technology demonstrate his innovative spirit and dedication to improving consumer experiences. His patents reflect a deep understanding of signal processing and the complexities of television systems.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.