OTSL Inc. is located in the central area of Japan. Their major products and operations are commissioned development and sales of the embedded system; software solution of the near field communication (Bluetooth, ZigBee, specified low power wireless, wireless LAN, UWB, software wireless, etc.); system of the embedded Linux, driver development; offer of the service of the software development; software development and management, and education consulting; research development; narrow space location measurement system using wireless; near-field-communication-based home server reference design; sensor network.