Abstract: An information display has an information carrier including a storable display panel separate from a processing unit including a battery, and where there is a need to perform a process such as updating or manipulating information displayed on the display panel, it is possible to perform a desired process by connecting the processing unit to the information carrier.

Abstract: The invention provides a projector a lighting optical system, a micro-lens array, a shutter array, a liquid crystal light valve, a projection optical system, and a modulation control portion. The modulation control portion can control the shutter array and the liquid crystal light valve in response to levels of gray-scale of colors specified by input image signals. When the gray-scale value is 1% or less, time-interval control is effected in such a manner that 1% of light is allowed to pass through by the shutter array, while a fine gray-scale expression is achieved by the liquid crystal light valve. Also, when the gray-scale value is 0%, light is shut out completely by the shutter. When configured in this manner, it is possible to improve the reproducibility at darker levels of gray-scale and the contrast characteristics. Accordingly, the display characteristics of an image from a liquid crystal projector can be improved.

Abstract: A control method for an information display device of the invention is a control method for an information display device including: a display having a data line applied with a data voltage, a switching element having a first input terminal connected to the data line and a first output terminal for turning on and off a signal between the first input terminal and the first output terminal, a latch circuit having a second input terminal connected to the switching element and a second output terminal for holding a voltage according to a data voltage input from the switching element via the second input terminal and for outputting the held voltage, a pixel electrode connected to the second output terminal, a common electrode, and a memory type electro-optical layer interposed between the pixel electrode and the common electrode; a display driving circuit for driving the display; and a power control circuit for controlling the supply of power to the latch circuit and the display driving circuit.

Abstract: A display driver for driving a display device having a plurality of pixels, the display driver comprises: an image processor that receives an image signal that contains information to be displayed on each of the plurality of pixels and applies a predetermined processing on the image signal to output a processed image signal; a selector that selects the information corresponding to a predetermined pixel among the plurality of pixels to output a selected image signal; and a memory that temporarily stores the selected image signal output by the selector, the selected image signal being read out from the memory to be fed to the predetermined pixel of the display device through a signal feed line.

Abstract: A gradation attributes correcting device to correct gradation attributes of an input image signal includes a brightness gradation correcting unit to correct gradation attributes with respect to brightness of an image indicated by the input image signal. The brightness gradation correcting unit includes a characteristic information acquisition unit, a correction information decision unit, and a brightness gradation processing unit. The characteristic information acquisition unit acquires a minimum, average, and maximum brightness, of an image on a frame from the input image signal. The correction information decision unit determines correction information to correct the gradation attributes with respect to brightness according to combinations of the acquired minimum, average and maximum brightness of the image on the frame.

Abstract: There is disclosed an electric power supply device including: a plurality of coils that respectively generate alternating current signals depending on a variation in magnetic flux; a plurality of rectifying units that are respectively connected to the plurality of coils, to respectively convert the alternating current signals generated by the plurality of coils connected, into a plurality of direct current signals; a restriction unit that restricts reverse flow of the plurality of direct current signals converted by the plurality of rectifying units; an electric power supply unit that extracts and supplies electric power from the plurality of direct current signals flowing through the restriction unit; and an output unit that specifies a direct current signal at a highest level among the plurality of direct current signals converted by the plurality of rectifying units, and outputs electronic information specifying which of the plurality of coils is connected to one of the plurality of rectifying units that h

Abstract: A device control apparatus that controls an image display device including a plurality of main scan lines is disclosed. The apparatus includes: a cumulative correction value calculation section that calculates, in response to an input image signal, a cumulative correction value in accordance with a cumulative value of each gray-scale value of input image data provided for each of the main scan lines; a cumulative correction value storage section that stores the calculated cumulative correction value for each of the main scan lines; and a device control section that controls, based on N (where N is an integer of 2 or larger) of the main scan lines read from the cumulative correction value storage section, the image display device to suppress a gray-scale deviation resulted from display of the N of the main scan lines.

Abstract: A light amount control device that controls an amount of light acquired from a light source provided in an image display apparatus includes: a pulse generator; an operation processing portion for light amount control that outputs a transfer start signal at timing when the amount of light is controlled; a data setting circuit that is provided outside the operation processing portion and that stores data, in which various kinds of signals instructing the operation processing portion to set transfer data beforehand are set, in a memory; an address generator that is provided outside the operation processing portion and that sets an address in response to the transfer start signal output from the operation processing portion; a memory that is a main component included in the pulse generator and that outputs data on the basis of a memory address generated by the address generator; a pulse driven body whose operation direction and speed are determined by a pulse signal formed by data output from the memory and which

Abstract: A red surface emitting laser element includes a first reflector, a second reflector including a p-type semiconductor multilayer film, an active layer between the first reflector and the second reflector, and a p-type semiconductor spacer layer between the active layer and the second reflector, the p-type semiconductor spacer layer having a thickness of 100 nm or more and 350 nm or less.

Abstract: An image processing device for converting a color tone of an image includes: an input unit to which an image is input; a designation unit that designates precision of color conversion performed on the input image; a color conversion table that stores output color data after color conversion of color data, which is determined according to the designated precision and may be included in the image, in an address space determined according to the precision; an address specifying unit that specifies an address referring to the color conversion table on the basis of a first portion, which is determined according to the precision, of color data expressing the input image; a color converting unit that converts the color data included in the input image into output color data by referring to the specified address of the color conversion table; a parameter specifying unit that specifies a parameter for interpolating a color, which is expressed by the output color data, on the basis of a second portion other than the fi

Abstract: There is disclosed an information processing system including: a first device including a magnetic core having a first end part to be brought into close proximity to the second device, and a second end part provided facing the first end part, an exciting coil wound around the magnetic core, and a controller that causes the exciting coil to generate an electric current corresponding to at least one of electric power and information; and a second device including a coil to be excited that generates an electric current in accordance with a variation in magnetic flux, and a processing unit that executes processing by using, as the at least one of the electric power and electronic information, the electric current generated in the coil to be excited, wherein if the controller causes the exciting coil to generate an electric current, the coil to be excited is caused to generate the electric current in accordance with the variation in magnetic flux generated by the electric current generated in the exciting coil.

Abstract: A system including a plurality of clients and a host is provided. In the system, each client includes a storage-type display device holding a non-volatile display state; a unit storing data of a displayed document; client-side connection units that, when the host is connected, cause the client to communicate with the host and respectively correspond to predetermined processing; and a unit storing a response map indicating the predetermined processing corresponding to the client-side connection unit. The host includes a host-side connection unit which connects the host to the client-side connection unit; a unit obtaining data from the document storing unit, the data being displayed on the client display device set to communicate; and a unit executing predetermined processing on the obtained data, the processing being associated with the client-side connection unit, to which the host-side connection unit is connected, by the response map.

Abstract: An information processing apparatus that executes processing of a message transmitted among a plurality of sites connected via a network. The information processing apparatus includes a message reception part that receives a message to execute a prescribed piece of reception processing, a rule accumulation part for accumulating rules to execute message processing, a message conversion part for executing conversion processing of a message according to the rules accumulated in the rule accumulation part, and a message transmission part for executing a prescribed piece of transmission processing of the post-conversion message.

Abstract: An information processing system including a host device and a client device which requests the host device to process information, includes: a communication unit which provides communication between the host device and the client device, wherein the host device includes: a communication completion judgment: unit which judges whether or not first communication information to foe transmitted and received via one round of communication provided by the communication unit has all been transmitted or received; and a communication information process determination unit which, in the event that the communication unit is unable to transmit or receive the first communication information before it is judged by the communication completion judgment unit that the first communication information has all been transmitted or received, determines a process related to the first communication information in accordance with second communication information received via a next or subsequent round of communication.

Abstract: The image display apparatus of the invention applies a tone-based voltage, which corresponds to a tone value of image data at each of multiple pixels on a VA liquid crystal display, to the pixel for display of an image represented by the image data on the VA liquid crystal display. The tone-based voltage of each pixel is restricted, based on a transmittance-voltage characteristic of the pixel that differs by the position of the pixel on the plane of the VA liquid crystal display. This arrangement ensures application of adequate voltages according to the tone values of image data to the VA liquid crystal, thus enhancing the quality of images displayed on the VA liquid crystal display.

Abstract: A color conversion device includes a three-dimensional lookup table and an interpolation unit. The interpolation unit includes a plurality of operation circuits for realizing an operation process.

Abstract: An information processing system includes: a host device, and a plurality of client devices, each of which is in communication with the host device, the plurality of client devices having unique identification information for specifying each of them.

Abstract: In a video signal processing device, a black-white expansion circuit performs black-white expansion of a luminance signal (Y signal) included in a video signal to generate an expanded luminance signal (Y? signal). A luminance ratio ‘n’ is computed as the rate of the expanded luminance signal (Y? signal) to the luminance signal (Y signal). A first color difference signal (U signal) and a second color difference signal (V signal) included in the video signal are respectively multiplied by the luminance ratio ‘n’ (=Y?/Y) to give an expanded first color difference signal (U? signal) and an expanded second color difference signal (V? signal). This arrangement of the invention effectively enables black-white expansion with no color change, while attaining reduction of the overall circuit scale.

Abstract: A print buffer unit temporally storing print data to be printed on a printer includes a data-storing section storing the print data, a print-image creating section creating a print image from the print data, and a print-image displaying section displaying the print image.

Abstract: A color correction circuit includes a 3D-LUT, an off data generation circuit, an image signal switchover circuit, and an interpolation operation circuit. The off data generation circuit substitutes respective lower (k?n) bits of input R, G, and B signals R2, G2, and B2 with a value ‘0’ and outputs processed R, G, and B signals after the substitution as off data Or, Og, and Ob. The off data generation circuit accordingly gives the output equivalent to the output of the 3D-LUT on the assumption that the storage of the 3D-LUT is rewritten to have identical input and output. The image signal switchover circuit alternatively selects and outputs standard data Sr, Sg, and Sb input from the 3D-LUT and the off data Or, Og, and Ob input from the off data generation circuit according to the setting of an externally given correction prohibit signal F. The color correction function of the color correction circuit is thus readily activated and inactivated, in response to the correction prohibit signal F.