Tetsuya Nagai

Title: Tetsuya Nagai: Innovator in Communication Technology

Introduction

Tetsuya Nagai is a prominent inventor based in Yokohama, Japan. He has made significant contributions to the field of communication technology, holding a total of 3 patents. His work focuses on enhancing communication methods and systems, particularly in achieving higher data transmission speeds.

Latest Patents

Nagai's latest patents include a communication method, a data transmission method, and a data communication system. These innovations aim to perform communication at speeds surpassing previous technologies without affecting existing slave communication devices. The master device in his communication system, such as PHS, incorporates two series of modulators and demodulators for both conventional and higher speeds. This allows for a seamless transition between the two speeds via a changeover switch. Additionally, the newly designed slave device mirrors this configuration. During the link setup phase, the slave device requests a change in modulation method alongside its communication request. The master device then specifies the time slots and modulation method for the communication phase. This ensures that the slave device can select the appropriate modulation method based on the required transmitting speed. If no modulation method is specified, the system defaults to the method used during the link setup phase, allowing compatibility with existing slave devices.

Another notable patent is the cell delay addition circuit, which enables the addition of desired delays to input cells in communication apparatuses for asynchronous transfer mode operations. This circuit generates a time stamp based on the delay amount and the current time, allowing for precise control over data transmission.

Career Highlights

Throughout his career, Tetsuya Nagai has worked with notable companies, including Matsushita Electric Industrial Co., Ltd. and Kokusai Denshin Denwa Co., Ltd. His experience in these organizations has contributed to his expertise in communication technologies.

Collaborations

Nagai has collaborated with esteemed colleagues such as Katsuyuki Yamazaki and Naoya Morita. Their joint efforts have further advanced the field of communication technology.

Conclusion

Tetsuya Nagai's innovative contributions to communication technology have significantly impacted the industry. His patents reflect a commitment to enhancing data transmission methods and systems, ensuring compatibility with existing technologies. His work continues to influence advancements in communication devices and systems.