This inventor holds 1 USPTO granted patent. Top assignees: Advanced Digital Television Broadcasting Laboratory, Kabushiki Kaisha Toshiba. Active years: 2000.
Company Filing History:
1 out of 2 
1 out of 53,240 
Years Active: 2000
Title: Keisuke Harada: Innovator in Soft Decision Methods
Introduction
Keisuke Harada is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of telecommunications, particularly in the development of soft decision methods for signal processing. His innovative approach has led to advancements in the reliability of data transmission.
Latest Patents
Keisuke Harada holds a patent for a soft decision method and receiver. This patent describes a technique where the received symbol is analyzed within specific regions to determine the most reliable bits for soft decision values. When the received symbol is located within regions G, H, I, L, M, N, Q, R, and S, two bits are decided to be most reliable, yielding soft decision values of 0 or 7. For the remaining bits, soft decision values are determined based on the I- or Q-axis direction. The method also addresses scenarios where the received symbol falls within regions A, E, U, and Y, allowing for all four bits to be decided for soft decision values of 0 or 7. This innovative approach enhances the correction performance of maximum likelihood coding in multilevel modulation.
Career Highlights
Throughout his career, Keisuke Harada has worked with prominent organizations, including the Advanced Digital Television Broadcasting Laboratory and Toshiba Corporation. His experience in these companies has allowed him to refine his skills and contribute to groundbreaking technologies in digital broadcasting and telecommunications.
Collaborations
Keisuke has collaborated with notable colleagues such as Masami Aizawa and Rumi Tanabe. Their joint efforts have further advanced the field of soft decision methods and have contributed to the success of various projects.
Conclusion
Keisuke Harada's contributions to the field of telecommunications through his innovative soft decision methods have made a lasting impact. His work continues to influence advancements in data transmission technologies.