10/15/2007, Pioneer has developed a signal converter capable of bidirectionally transmitting HDMI, DVI signals, and USB, RS-232C, and analog audio signals using a single optical fiber, and the "CEATEC JAPAN 2007" Live demonstrations were held at the show. Demonstrates the transmission of image signals from video recorders and personal computers to displays with touch panel functions, and two-way transmission of signals (USB) when the touch panel is operated to the computer. 
　　 In addition to HDMI and DVI terminals and optical connectors, the developed signal converters are also equipped with USB terminals, analog audio signal terminals, and RS-232C terminals. The light source is an infrared laser, and the optical fiber used for transmission is a common glass product. 
The audio signal is multiplexed on the basis of AD conversion and digitalization of the signal, and then transmitted to the receiving end. Newly developed protocols for implementing this technology. The bidirectional signal transmission of USB and RS-232C is performed by using a different infrared laser with wavelength and HDMI signal transmission. 
　　 The HDMI signal transmission distance is usually about 10 m at the maximum. However, due to business applications and the like, there has been a need to extend the distance, and signal transmitters using optical fibers and high-speed LAN cables have appeared. However, when a display device and a video source device are separated from each other in a place such as a conference site, not only an image signal but also a control signal such as USB and RS-232C is transmitted. Therefore, a plurality of lines are often interlaced. 
　　 This development can solve this wiring problem. In fact, at this "CEATEC JAPAN" exhibition, the transmission system was used everywhere in the Avant Garde exhibition area to appreciate the benefits of signal transmission without quality reduction and concise wiring. 
　　 In addition, practical details are also taken into consideration. Connectors for optical fibers are generally designed to be hooked after insertion so that they do not come off. However, for applications such as this time, when the cable is dragged by accidentally getting caught in the cable, "since the signal converter is small, the device side is easily destroyed" (narrator). Therefore, the connector that can be dropped when it is dragged is deliberately selected. 
　　 Although the specific contents such as time to market have not yet been determined, the company has set a target to target the business market in Japan, while in North America, it has locked home theater installation companies called Custom Installers.