Abstract: A plurality of user terminals regularly accessing Internet Relay Chat (IRC) services are also in communication with a service selecting host. The service selecting host is configured to collect data from the plurality of user terminals. The collected data includes information about the users at the user terminals and information about the user terminals activity in the accessing of the IRC services. The service selecting host compiles and sorts the collected data concerning IRC services to produce information provided to the user terminals. The information provided to the user terminals allows users at the user terminals to more easily select sorted IRC services.

Abstract: In a two-dimensional image display device for a three-dimensional computer graphics model, adjacent display screen units are combined by a joint with a sensor. The relative positions or relative angles of the adjacent display screen units are obtained by a sensor, and the result is output to a projection adjusting unit. When a sensor value is changed, the projection adjusting unit changes a viewpoint description and projection plane description in a way that the relative position or relative angle of the display screen unit satisfies the value obtained by the sensor. If the description of a specific projection plane is changed, then the description of the other projection plane is changed to satisfy the sensor value. Based on the changed contents of the viewpoint description unit and the projection plane description unit, a two-dimensional image of the three-dimensional computer graphics model is generated and displayed on the display screen unit.

Abstract: A video teleconferencing system is adapted to make a video conference among a plurality of participants located at different work locations. The video teleconferencing system includes a plurality of image pickup devices provided at each work location for picking up the participant at each work location, a plurality of image displays provided at each work location for displaying images of the participants, an image converter provided for each work location for converting the image picked up by the image pickup means into a mirror image thereof, and an image selector provided for each work location for selecting the image to be transmitted to the image displays at every work location from the images picked up by the image pickup devices and the mirror images thereof obtained from the image converter.

Abstract: The present invention is a data processing unit capable of displaying a window on the display screen, and aims at being able to refer to and update window management information, that is, information indicating the size and the position of the window, etc. in a representation format comprehensible for a user.