U-PICKING

electronic video displays attached to human body and animal body; portable electronic video displays excluding electronic video displays attached to human body and animal body; computer terminals having wireless communication functions; portable electronic computer terminals; computers memorizing computer program for assisting sorting; bar code readers attached to human body and animal body; portable article identification machines and apparatus excluding bar code readers attached to human body and animal body; position detecting machines and apparatus using visible light for detecting workers in warehouse and factory; voice-operated command input machines