Susumu Takashima

Title: The Innovations of Susumu Takashima

Introduction

Susumu Takashima is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of broadcasting technology, holding a total of 14 patents. His work focuses on enhancing the efficiency and functionality of FM multiplexed broadcasting systems.

Latest Patents

One of Takashima's latest inventions is the FM multiplexed broadcast receiving apparatus. This selective call receiving apparatus is designed to suppress power consumption by efficiently utilizing a battery as a power supply. The apparatus includes a reception circuit, an FM multiplex decoder, a subframe counter, and a CPU. The reception circuit receives frames containing multiple subframes, including ID data for a local terminal. The FM multiplex decoder detects a sync signal in each received subframe, while the subframe counter counts the number of subframes based on the detected sync signal. The CPU manages the operation of the reception circuit and FM multiplex decoder, activating them only when the count value matches a previously assigned subframe number, thus executing data processing to determine if the ID data matches that of the local terminal.

Another notable patent is the FM character data multiplex broadcasting signal receiving apparatus. This device automatically presets an FM broadcasting signal carrying multiplex character data transmitted from a radio broadcasting station. The FM receiving apparatus temporarily memorizes the frequency information of the received FM broadcasting signal. During the demodulation process, it is determined whether a PLL lock signal is produced by a clock signal reproducing circuit. If the PLL lock signal is confirmed, it indicates that the FM broadcasting signal carries multiplex character data, allowing the frequency information to be preset in the FM receiving apparatus.

Career Highlights

Throughout his career, Takashima has worked with notable companies such as Casio Computer Co., Ltd. and Jeol Ltd. His experience in these organizations has contributed to his expertise in the field of broadcasting technology.

Collaborations

Takashima has collaborated with talented individuals, including Takao Kanke and Naoki Inagaki. These partnerships have likely fostered innovation and creativity in his projects.

Conclusion

Susumu Takashima's contributions to FM multiplexed broadcasting technology demonstrate his commitment to innovation and efficiency. His patents reflect a deep understanding of the technical challenges in the field, and his work continues to influence advancements in broadcasting systems.