Raytron`s communication robot "Chapit" makes different facial expressions in response to voices, using its voice recognition function, during ROBOTECH, an exhibition on service robot manufacturing technologies, in Tokyo, in this combination picture taken July 28, 2010. Chapit possesses automatic speech recognition and speech synthesis functions with which it can select several suitable words from a speech database and compose an arbitrary speech. With only speech commands, it can control home electronics facilities, the company said.

A man talks to Raytron`s communication robot "Chapit" at a demonstration during ROBOTECH, an exhibition on service robot manufacturing technologies, in Tokyo July 28, 2010.

Care robot YURINA carries a man at a demonstration during ROBOTECH, an exhibition on service robot manufacturing technologies, in Tokyo July 28, 2010. YURINA is a device for moving elderly and disabled people to and from beds and chairs.

Advanced Industrial Science and Technology (AIST) research scientist Yoon Woo-keun uses a cup which is being held by RAPUDA (Robotic Arm for Persons with Upper-limb Disabilities) at a demonstration during ROBO , an exhibition on service robot manufacturing technologies, in Tokyo July 28, 2010.

A man watches as the Advanced Industrial Science and Technology (AIST)`s robotic arm RAPUDA (Robotic Arm for Persons with Upper-limb Disabilities) carries a cup at a demonstration during ROBOTECH, an exhibition on service robot manufacturing technologies, in Tokyo July 28, 2010.