Company Filing History:
Years Active: 1999-2000
Title: Ken'ichi Tajima: Innovator in Communication Technology
Introduction
Ken'ichi Tajima is a prominent inventor based in Kanagawa, Japan. He has made significant contributions to the field of communication technology, holding a total of 2 patents. His work focuses on methods and apparatuses that enhance communication and signal synthesis.
Latest Patents
Tajima's latest patents include a "Method and apparatus for communication and signal synthesis." This invention involves a receiving and transmitting apparatus where the frequency of a direct digital synthesizer in a local oscillating circuit is controlled to minimize frequency errors. The synthesizer features a digital operation circuit that inputs frequency designating data and outputs an amplitude value of a periodic signal synchronized with a reference clock. Additionally, a digital-analog converter transforms this amplitude value into an analog signal.
Another notable patent is the "Frequency synthesizer using divided and frequency converted DDS signal." This frequency synthesizer is designed to reduce spurious components for use in receiving and transmitting apparatuses. It employs a direct digital synthesizer (DDS) to generate a first signal with a frequency determined by channel setting data. This signal is then divided and shifted in frequency to produce a reference signal, which is utilized in a phase locked loop (PLL) to generate a final signal with specific frequency characteristics.
Career Highlights
Ken'ichi Tajima is associated with Mitsubishi Electric Corporation, where he has been instrumental in developing innovative communication technologies. His expertise in signal processing and frequency synthesis has positioned him as a key figure in his field.
Collaborations
Tajima has collaborated with notable colleagues, including Kenji Itoh and Shuji Nishimura. Their combined efforts have contributed to advancements in communication technology and signal processing.
Conclusion
Ken'ichi Tajima's contributions to communication technology through his patents reflect his innovative spirit and dedication to enhancing signal synthesis. His work continues to influence the field and inspire future advancements.