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SDR-4X Sony Dream Robot 4X Country: Japan Manufacturer: Sony Year: 2002 Height: 2ft (61cm) Weight: 16lbs (7kg) Degrees of Freedom: 38 Webpage Info

The SDR-4 debuted in 2002 with an improved mechanics and circuitry, and a stylish new exterior. Its new capabilities include improved 3D vision from its two head-mounted CCD color cameras which it uses for image recognition and allow it to tell the distance between itself and objects by processing the parallax of the two cameras. These cameras allow the robot to perceive the figuration of an object and range between itself and the object to automatically produce a route in order to make its way around the object.

In addition to image recognition, sound recognition, and sound synthesis technologies, communication and movement control technology based on memory is incorporated in the SDR-4X to further enrich communications with people. The SDR-4X can recognize an individual person by detecting the front facial image captured by a color camera. The robot can also detect the direction of a sound source and recognizes an individual speaking by utilizing 7 microphones located inside its head. By using embedded wireless LAN communication functions, the robot can synchronize data processing with an externally connected PC, which enables continuous speech recognition of many vocabularies.

Information on people and the location of an object obtained through image recognition technology is used as short and long term memory information. Based on this information, the SDR-4X can realize more complicated communication and movements. By inputting music and lyric data into the robot, it can produce a singing voice with vibratos and the composition of emotional, dynamic singing through voice synthesis can be realized to improve the robot's entertainment quality.

The SDR-4X robots use the same OPEN-R architecture as Sony?s four-legged autonomous Entertainment Robot ?AIBO? in conjunction with WBCDC (Whole Body Coordinated Dynamic Control) for real-time control of its joints to realize bipedal walking.

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