Abstract: A coordinate detection system includes a coordinate detecting apparatus that is mounted on a display apparatus, detects approach of an indicating object toward the display apparatus, detects a position coordinate of the indicating object on the display apparatus, and outputs a notice indicating the approach of the indicating object and the position coordinate; a contact detecting apparatus that detects whether the contact detecting apparatus is in contact with the coordinate detecting apparatus and outputs a notice indicating contact or non-contact of the contact detecting apparatus; and an information processing apparatus that includes a control unit that, upon reception of the notice indicating the approach of the indicating object, determines whether the notice indicating the contact of the contact detecting apparatus is received within a predetermined time, and issues an event indicating the contact of the contact detecting apparatus when receiving the notice of the contact of the contact detecting appara

Abstract: An image display control device according to the present invention includes a display control unit, an obtaining unit, a drawing unit, a deleting unit, and an operating unit. The display control unit displays an image on a display device. The obtaining unit obtains contact position information or proximity position information of a drawing device, which is relative to a display area of the display device. The drawing unit generates a drawn image, compose a display image of an information processing apparatus with the drawn image, and displays the composite image on the display device. The deleting unit deletes the drawn image from the displayed image, and display on the display device. The operating unit operates the information processing apparatus. The drawing device switches and specifies a generation and deletion of the drawn image, and an operation of the information processing apparatus.

Abstract: An image display apparatus is provided with a receive unit that receives a frame image from a frame image providing device, a display unit that displays the frame image, a touch panel control unit that detects contact point coordinates or approach point coordinates on a touch panel provided for the display unit, and a drawing unit that superimposes a drawing image on the frame image by using the contact point coordinates or the approach point coordinates. The display unit displays the frame image or the frame image with the drawing image superimposed thereon.

Abstract: A display apparatus includes a detecting unit that detects terminal position information including information concerning a position of another display apparatus with respect to the display apparatus; and a display unit that displays a part of a given image based on the terminal position information detected by the detecting unit.

Abstract: A coordinate detecting apparatus includes a light emitting element that is provided in a peripheral portion surrounding a surface of a display and emits a light in a direction parallel to the surface of the display; a light receiving element that is provided in the peripheral portion surrounding the surface of the display and receives the light emitted from the light emitting element; and a polarization unit that limits an oscillation direction of the light received by a light receiving surface of the light receiving element to a predetermined direction where only a real image is formed on the light receiving surface, wherein a coordinate of a touch position where an indicating unit touches the surface of the display is detected based on a light intensity distribution of the light received by the light receiving element.

Abstract: A display device includes a touch panel; a coordinate detecting unit configured to detect coordinates on a display surface of the touch panel; a special pen detecting unit configured to detect that a special pen comes into physical contact with the display surface; a timer unit configured to measure time having elapsed from when the coordinate detecting unit detects the coordinates; and an event issuing unit configured to issue a first event when the special pen detecting unit detects the special pen coming into contact with the display surface, and issue a second event when the time having elapsed measured by the timer unit exceeds a predetermined time ?t while the special pen detecting unit is not detecting the special pen coming into contact with the display surface.

Abstract: A display device includes a touch panel; a coordinate detecting unit configured to detect coordinates on a display surface of the touch panel; a special pen detecting unit configured to detect that a special pen comes into physical contact with the display surface; a timer unit configured to measure time having elapsed from when the coordinate detecting unit detects the coordinates; and an event issuing unit configured to issue a first event when the special pen detecting unit detects the special pen coming into contact with the display surface, and issue a second event when the time having elapsed measured by the timer unit exceeds a predetermined time ?t while the special pen detecting unit is not detecting the special pen coming into contact with the display surface.

Abstract: A display apparatus includes a pointing device including a light emitting unit and a light receiving unit to detect a position of an object inserted into an optical path between the light emitting unit and a light receiving unit, wherein the pointing device includes an optical intensity store unit configured to store an optical intensity distribution detected by the light receiving unit in a memory unit upon detection of a change in a position or location of a display, and a position calculating unit configured to detect the position of the object by detecting a dark point in the optical intensity distribution caused by the insertion of the object based on a difference between the optical intensity distribution stored in the memory unit and an optical intensity distribution subsequently detected by the light receiving unit.

Abstract: A stylus includes an end having a surface, an arbitrary area of which is to be moved close to or brought into contact with a desired position on a touch panel of an optical touch panel device. The end includes a light shielding member configured to block at least part of incident light. The stylus extends along an axis line that passes through a center of gravity of the light shielding member. A distance between a predetermined part of the light shielding member on the axis line and the arbitrary area is constant.

Abstract: An image processing apparatus measures duration of the drawing operation by using coordinate information that indicates coordinate instructed to draw and time information that indicates time when the coordinates are detected, determines predicted time in accordance with the duration of the drawing operation, and generates an drawn image by calculating the predicted coordinates after the predicted time passes. The image processing apparatus calculates a characteristic value of the drawing operation by using the coordinate information and the time information and measures the duration of the drawing operation in case the characteristic value of the drawing operation is less than predetermined threshold value.

Abstract: A display apparatus includes a pointing device including a light emitting unit and a light receiving unit to detect a position of an object inserted into an optical path between the light emitting unit and a light receiving unit, wherein the pointing device includes an optical intensity store unit configured to store an optical intensity distribution detected by the light receiving unit in a memory unit upon detection of a change in a position or location of a display, and a position calculating unit configured to detect the position of the object by detecting a dark point in the optical intensity distribution caused by the insertion of the object based on a difference between the optical intensity distribution stored in the memory unit and an optical intensity distribution subsequently detected by the light receiving unit.

Abstract: An image display control device according to the present invention includes a display control unit, an obtaining unit, a drawing unit, a deleting unit, and an operating unit. The display control unit displays an image on a display device. The obtaining unit obtains contact position information or proximity position information of a drawing device, which is relative to a display area of the display device. The drawing unit generates a drawn image, compose a display image of an information processing apparatus with the drawn image, and displays the composite image on the display device. The deleting unit deletes the drawn image from the displayed image, and display on the display device. The operating unit operates the information processing apparatus. The drawing device switches and specifies a generation and deletion of the drawn image, and an operation of the information processing apparatus.

Abstract: A display device includes a touch panel; a coordinate detecting unit configured to detect coordinates on a display surface of the touch panel; a special pen detecting unit configured to detect that a special pen comes into physical contact with the display surface; a timer unit configured to measure time having elapsed from when the coordinate detecting unit detects the coordinates; and an event issuing unit configured to issue a first event when the special pen detecting unit detects the special pen coming into contact with the display surface, and issue a second event when the time having elapsed measured by the timer unit exceeds a predetermined time ?t while the special pen detecting unit is not detecting the special pen coming into contact with the display surface.

Abstract: A coordinate detection system includes a coordinate detecting apparatus that is mounted on a display apparatus, detects approach of an indicating object toward the display apparatus, detects a position coordinate of the indicating object on the display apparatus, and outputs a notice indicating the approach of the indicating object and the position coordinate; a contact detecting apparatus that detects whether the contact detecting apparatus is in contact with the coordinate detecting apparatus and outputs a notice indicating contact or non-contact of the contact detecting apparatus; and an information processing apparatus that includes a control unit that, upon reception of the notice indicating the approach of the indicating object, determines whether the notice indicating the contact of the contact detecting apparatus is received within a predetermined time, and issues an event indicating the contact of the contact detecting apparatus when receiving the notice of the contact of the contact detecting appara

Abstract: An image display apparatus is provided with a receive unit that receives a frame image from a frame image providing device, a display unit that displays the frame image, a touch panel control unit that detects contact point coordinates or approach point coordinates on a touch panel provided for the display unit, and a drawing unit that superimposes a drawing image on the frame image by using the contact point coordinates or the approach point coordinates. The display unit displays the frame image or the frame image with the drawing image superimposed thereon.

Abstract: An image display device refers to a database, in which at least one image frame to be displayed on a display unit and configuration information representing at least one drawn image to be superimposedly drawn on the at least one image frame are registered to be associated with each other, to judge whether or not an image frame identical to one of the at least one image frame received from an image frame provision device is present in the database, and causes the display unit to display at least one of the at least one drawn image represented by a part of the configuration information associated with an image frame judged as being identical to a received one of the at least one image frame.

Abstract: An information sharing area, employed by all conferees for sharing information (object) or personal knowledge transmitted via information processors from conferees, and an editing display area, employed for editing a structure of the information (object) or shared knowledge, can be definitely distinguished from each other and displayed in a large display device commonly visible from all conferees. When the areas are displayed in the large display device and one of the objects displayed in the information sharing area is designated, the designated object is displayed at a desired location in the editing display area and can be edited through cooperative works by all conferees centering around a conference chairman.

Abstract: An electronic blackboard displays information and optically detects input information on a display/writing surface by determining the corresponding coordinates. To determine the input coordinates, a predetermined number of pairs of light emitting elements and light detecting elements are placed in parallel for each axis near the edges. The light emitting elements and the light detecting elements are also linearly and equidistantly placed. A control unit is connected to the light emitting elements for sequentially activating these light emitting elements and for controlling the light detecting elements to detect the light in an overlapping manner. Based upon the above positional information from the light detecting elements, an input coordinate determination unit determines the input coordinates of an input on the display/writing surface.

Abstract: An information sharing area, employed by all conferees for sharing information (object) or personal knowledge transmitted via information processors from conferees, and an editing display area, employed for editing a structure of the information (object) or shared knowledge, can be definitely distinguished from each other and displayed in a large display device commonly visible from all conferees. When the areas are displayed in the large display device and one of the objects displayed in the information sharing area is designated, the designated object is displayed at a desired location in the editing display area and can be edited through cooperative works by all conferees centering around a conference chairman.

Abstract: An information sharing area, employed by all conferees for sharing information (object) or personal knowledge transmitted via information processors from conferees, and an editing display area, employed for editing a structure of the information (object) or shared knowledge, can be definitely distinguished from each other and displayed in a large display device commonly visible from all, conferees. When the areas are displayed in the large display device and one of the objects displayed in the information sharing area is designated, the designated object is displayed at a desired location in the editing display area and can be edited through cooperative works by all conferees centering around a conference chairman.