Takafumi Fujimori

Title: Takafumi Fujimori: Innovator in Transmission and Encoding Technologies

Introduction

Takafumi Fujimori is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the fields of transmission devices and encoding methods. With a total of seven patents to his name, Fujimori's work has had a substantial impact on modern communication technologies.

Latest Patents

Fujimori's latest patents include a transmission device, a reception device, an encoding method, and a control circuit. The transmission device features an outer code interleaver that generates multiple bit sequences while performing interleaving on a signal formed of multiple multilevel modulation symbols on a per-bit basis. It also includes an outer coding unit that performs outer coding processings in parallel on the generated bit sequences. Additionally, the device has an outer code deinterleaver that performs deinterleaving on bit sequences obtained from the outer coding processings. Furthermore, an inner coding unit performs inner coding processings in parallel on the deinterleaved bit sequences, and an inner code interleaver performs time interleaving and symbol interleaving on the resulting bit sequences.

Another notable patent is an encoding circuit that includes a polar encoding unit capable of encoding a polar code of N bits. This circuit features a frozen bit adding unit that generates a first sequence by adding frozen bits to an input signal. A bit arrangement changing unit then generates a second sequence of N bits by arranging the first sequence according to a specific arrangement rule. The encoding circuit ultimately produces a code word of N bits through thinning processing based on the encoding result.

Career Highlights

Fujimori has worked with notable companies such as Mitsubishi Electric Corporation and Mitsubishi Electric Research Laboratories, Inc. His experience in these organizations has allowed him to develop and refine his innovative technologies.

Collaborations

Throughout his career, Fujimori has collaborated with esteemed colleagues, including Takashi Sugihara and Wataru Matsumoto. These partnerships have contributed to the advancement of his research and inventions.

Conclusion

Takafumi Fujimori is a distinguished inventor whose work in transmission and encoding technologies has significantly influenced the field. His innovative patents and collaborations highlight his commitment to advancing communication technology.