Abstract: A coordinate input apparatus includes a light projecting unit configured to project light parallelly to an effective coordinate input region, a reflection unit configured to retroreflect the light projected by the light projecting unit, and a light receiving unit configured to receive light from the light projecting unit or the reflection unit. The coordinate input apparatus includes a moving unit configured to move a set of the light projecting unit, light receiving unit, and reflection unit in a direction perpendicular to the effective coordinate input region in order to ensure a light amount with which a pointed position in the effective coordinate input region can be calculated based on variations of a light amount distribution obtained from the light receiving unit.

Abstract: A coordinate input apparatus includes a first housing and a second housing each of which incorporate at least two sensor units each including one of the light projecting unit and one of the light receiving unit. A pointed position to an effective coordinate input region is calculated based on variations of a light amount distribution obtained from the light receiving units of each of the first and second housings. In each of the first and second housings, the field range of a light receiving unit is almost parallel to the effective coordinate input region, the optical axis direction of the light receiving unit is a direction perpendicular to a line segment connecting the barycenters of at least two sensor units in a single housing, and the field range is set to be asymmetric to the optical axis direction.

Abstract: A coordinate input apparatus includes a first housing and a second housing each of which incorporate at least two sensor units each including one of the light projecting unit and one of the light receiving unit. A pointed position to an effective coordinate input region is calculated based on variations of a light amount distribution obtained from the light receiving units of each of the first and second housings. In each of the first and second housings, the field range of a light receiving unit is almost parallel to the effective coordinate input region, the optical axis direction of the light receiving unit is a direction perpendicular to a line segment connecting the barycenters of at least two sensor units in a single housing, and the field range is set to be asymmetric to the optical axis direction.

Abstract: A coordinate input apparatus includes a light projecting unit configured to project light parallelly to an effective coordinate input region, a reflection unit configured to retroreflect the light projected by the light projecting unit, and a light receiving unit configured to receive light from the light projecting unit or the reflection unit. The coordinate input apparatus includes a moving unit configured to move a set of the light projecting unit, light receiving unit, and reflection unit in a direction perpendicular to the effective coordinate input region in order to ensure a light amount with which a pointed position in the effective coordinate input region can be calculated based on variations of a light amount distribution obtained from the light receiving unit.

Abstract: In a rear projection type projector device, a transparent plate-like member is supported so as to incline from a vertical surface, and a lenticular screen and a Fresnel lens are placed on the transparent plate-like member. Accordingly, the lenticular lens and the Fresnel lens are in tight contact with the front plate owing to their own weight, and this makes it unlikely to create spaces between these components.

Abstract: For the purpose of a presenter performs presentation without obstructing an image display section, a display apparatus is provided with switches having the same function are arranged on a left side and a right side of the image display section.

Abstract: In a rear projection type projector device, a transparent plate-like member (front plate) is supported so as to incline from a vertical surface, and a lenticular screen and a Fresnel lens are placed on the front plate. Accordingly, the lenticular lens and the Fresnel lens are in tight contact with the front plate owing to their own weights, and this makes it unlikely to create spaces between these components, whereby it is thus possible to prevent a decrease in resolution, the distortion of an image both associated with the creation of spaces, and the degradation of image quality.

Abstract: In a rear projector for projecting an image from behind a screen, its screen size is variable. In order to permit flexible adaptation to the variation in the screen size, the projector is constructed to permit easy adjustment of a detection device for detecting an image display position or a position indicated on the screen.

Abstract: Electronic equipment has a display unit and an operation input unit. The display unit is arranged to be pivotal between a state wherein it obliquely stands on an electronic equipment main body (tilt state), and a state wherein it is folded on the equipment main body (close state), and the operation input unit is arranged to be pivotal between a state wherein it is inclined with respect to the electronic equipment main body, and a horizontal state. The operation input unit is interlocked with the pivotal movement of the display unit. When the display unit is pivoted to the tilt state, the operation input unit is pivoted to the inclined state. When the display unit is pivoted to the close state, the operation input unit is pivoted to the horizontal state.

Abstract: A printing system for a dot printer for printing matrix patterns in the form of aggregated dots which consist of orthogonal rows and columns, has a first memory having first and second memory areas for storing pattern data corresponding to the rows and columns of the dot matrix patterns. The data corresponding to successive columns of each one of the dot matrix patterns are stored in the first memory area and numerical data specifying a total number of times each respective successive column is to be repeated in the respective pattern are stored in the second memory area. A second memory temporarily stores the dot matrix patterns specified by the pattern data and a control means causes the dot matrix patterns to be generated in the second memory in accordance with the pattern data stored in the first memory.

Abstract: The present invention relates to a dot printer for printing letters or symbols by aggregated dots, which is characterized in that the second dot matrix pattern is generated from a basic dot matrix pattern by a simple algorithm so that gaps between dots in the basic dot matrix pattern are filled up, the basic dot matrix pattern and the second dot matrix pattern are synthetically edited, and high-grade printed letters are obtained by using the resulting edited dot matrix pattern.