Introduction: Makoto Umehara, an influential inventor based in Kawasaki, Japan, has made significant contributions to the field of communication technology. With an impressive portfolio of 15 patents, Umehara’s innovations reflect his commitment to enhancing wireless communication systems.

Latest Patents: Among his recent inventions is a communication device and method for controlling the same, along with a non-transitory computer-readable storage medium. This invention introduces a mechanism for reducing residual frequency differences in distributed MIMO (Multiple Input Multiple Output) systems using a slave trigger. It enhances synchronization precision between access points (APs). The device is designed to work in tandem with another communication device within a wireless network. It includes a transmission unit that transmits a synchronization frame to ensure effective cooperation. The innovative transmission unit features a setting unit that defines a repetition number exceeding 4 for an EHT (Extremely High Throughput) Long Training Field positioned within an EHT Signal Field of the synchronization frame. A generation unit then produces the synchronization frame, incorporating the determined number of EHT Long Training Fields, which are transmitted to partner devices.

Career Highlights: Makoto Umehara is associated with Canon Kabushiki Kaisha, a leading company in the imaging and optical products sector where he has focused on developing advanced communication technologies. His work plays a crucial role in shaping the future of wireless communication, influencing connectivity and data transmission efficiency.

Collaborations: Umehara has collaborated with esteemed coworkers, such as Tomoyuki Takada and Hitoshi Asai, showcasing a great teamwork approach to innovation. Together, they contribute their expertise to push the boundaries of technology further.

Conclusion: Makoto Umehara's contributions through his patents underscore his innovative spirit and commitment to improving communication systems. His work at Canon and collaborations with fellow inventors demonstrate the impactful role of teamwork in advancing technology. As the world increasingly relies on efficient communication solutions, Umehara's inventions will undoubtedly play a vital role in shaping the future landscape of wireless communication.

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