Abstract: A power amplifier includes a first amplifier and a second amplifier which include large and small size elements. An RF input signal is amplified by the first and second amplifiers. An output of the first amplifier is connected to an input of a first output matching circuit. An output of the second amplifier is connected to an input of a second output matching circuit. An output of the second output matching circuit is connected to an RF signal output terminal. In a high power state, the RF input signal is amplified by the first amplifier. In a low power state, the RF input signal is amplified by the second amplifier. In amplification with low power and high frequency, reactances of the second output matching circuit are set at predetermined values. In amplification with low power and low frequency, the reactances of the second output matching circuit are set at larger values.

Abstract: When a power amplifier mounted in mobile communications equipment, such as a mobile-phone, is composed of a balanced amplifier, technology with which the loss of the electric power composition in a power combiner can be reduced is provided. According to the technical idea of the present embodiment, by dividing an isolation capacitor element into two capacitor elements with high symmetry and coupled in parallel, it is possible to make almost equal parasitic capacitance arising from these capacitor elements, even when the capacitor elements are formed as interlayer capacitor elements of the wiring substrate.

Abstract: A method for correcting distortion of an image projected by a projector includes: a first detection image data producing step which produces first detection image data containing marker images; a first detection image displaying step which displays a first detection image; a first image comparing step which compares the first detection image with the first detection image data; an area selecting step which selects an area having larger distortion of the detection image than distortion in other area based on the comparison; a second detection image data producing step which increases positioning density of the marker images in the selected area to produce second detection image data; a second detection image displaying step which displays the second detection image; a second image comparing step which compares the second detection image with the second detection image data; and an image correcting step which corrects the projection image.

Abstract: An image processing device adapted to correct distortion of an image projected on a projection screen with projection light emitted from a projector includes a detection section adapted to detect at least one of display positions of a plurality of predetermined figures displayed in a correction image projected by the projector on the projection screen, the plurality of figures arranged at densities varying in accordance with an incident condition of projection light to the projection screen, a distortion correction information generation section adapted to generate distortion correction information based on the display position detected and correction image data representing the correction image, an acquisition section adapted to acquire image data representing the image to be projected on the projection screen, and a distortion correction section adapted to execute a distortion correction process using the distortion correction information on the image data acquired.

Abstract: A multi-projection system includes a first projector and a second projector. Each of the projectors includes: a light source; a modulation device that modulates light emitted by the light source; a projection device that projects light modulated by the modulation device; a brightness reduction device that reduces brightness of the projection image projected by the projection device; a color mode switching unit that changes a color mode of the projector; and a brightness reduction control device that adjusts a range for which brightness is reduced by the brightness reduction device in accordance with the change in the color mode of the projector.

Abstract: A multi-projection system includes a first projector projecting a first image, a second projector projecting a second image , and an optical light blocking apparatus blocking part of an image light corresponding to the first image and part of an image light corresponding to the second image to adjust the brightness of a superimposed region. The installation positions of the first projector and the second projector are set in such a way that a tinge which appears in the first image and a tinge which appears in the second image are the same type of color in the superimposed region as a result of part of the image light being blocked by the optical light blocking apparatus.

Abstract: A multi-display system includes: a plurality of image display devices; and an information processor that outputs image data to the plurality of image display devices, wherein the information processor includes a composite image data generation unit that combines partial image data to generate composite image data having a higher resolution than that of each of the image display devices, and an image data output unit that outputs the composite image data, and each of the image display devices includes an image data input unit that receives the composite image data, a partial image data generation unit that cuts out partial image data corresponding to an partial image to be displayed by the image display device from the composite image data, and an image display unit that displays the partial image based on the partial image data cut out in the partial image data generation unit.

Abstract: At least one of a plurality of achromatic object color ranges is selected based on the image targeted for processing, and a color adjustment process is executed based on the selected achromatic object color range. Image may be reproduced using a color image data after a color correction of the color image data, the color correction being performed according to illumination light source associated with the color image data. Image data may also be output after the color correction. Image data may also be output associated with data related to the illumination light source, to reproduce the image after the color correction.

Abstract: An image correcting apparatus that corrects an image to be projected by a projector on the basis of a local distortion of the projection plane includes an amount-of-distortion calculating unit that calculates the amount of distortion at each of a plurality of feature points on an image, which is projected on the projection plane, for calculating the amount of distortion on the basis of the captured image obtained by capturing the image, an image-correcting-method selecting unit that selects an image correcting method according to the amount of distortion at each of the feature points, which is calculated by the amount-of-distortion calculating unit, and an image correction processing unit that corrects a predetermined area of the image to be projected by the image correcting method selected by the image-correcting-method selecting unit.

Abstract: At least one of a plurality of achromatic object color ranges is selected based on the image targeted for processing, and a color adjustment process is executed based on the selected achromatic object color range. Image may be reproduced using a color image data after a color correction of the color image data, the color correction being performed according to illumination light source associated with the color image data. Image data may also be output after the color correction. Image data may also be output associated with data related to the illumination light source, to reproduce the image after the color correction.

Abstract: A method for correcting distortion of an image projected by a projector includes: a first detection image data producing step which produces first detection image data containing marker images; a first detection image displaying step which displays a first detection image; a first image comparing step which compares the first detection image with the first detection image data; an area selecting step which selects an area having larger distortion of the detection image than distortion in other area based on the comparison; a second detection image data producing step which increases positioning density of the marker images in the selected area to produce second detection image data; a second detection image displaying step which displays the second detection image; a second image comparing step which compares the second detection image with the second detection image data; and an image correcting step which corrects the projection image.

Abstract: An image processing device adapted to correct distortion of an image projected on a projection screen with projection light emitted from a projector includes a detection section adapted to detect at least one of display positions of a plurality of predetermined figures displayed in a correction image projected by the projector on the projection screen, the plurality of figures arranged at densities varying in accordance with an incident condition of projection light to the projection screen, a distortion correction information generation section adapted to generate distortion correction information based on the display position detected and correction image data representing the correction image, an acquisition section adapted to acquire image data representing the image to be projected on the projection screen, and a distortion correction section adapted to execute a distortion correction process using the distortion correction information on the image data acquired.

Abstract: The image processing device of the present invention maps signal values on saturation segments to corresponding signals on an achromatic axis. In conjunction with this, mapping of color signal present around the saturation segments is mapped while preserving the continuity prior to mapping. The image processing device determines the displacement level entailed in mapping color signal surround a saturation segment so as to be inversely proportional to distance from the saturation segments. Since chroma of signals on the saturation segments change precipitously before and after mapping, by mapping signal surround the saturation segments so as to preserve the continuity of the original signals of signals surround the saturation segments, chroma gradation of signals on the saturation segments and signals around saturation segments can be preserved with a high degree of accuracy.

Abstract: Cross-band isolation characteristics are to be significantly improved without using any filtering circuit. In the central part of a semiconductor chip provided in an RF power module is formed a ground wiring layer from the upper part downward. This ground wiring layer is formed on the boundary between GSM side transistors and DCS side transistors for amplifying different frequency bands. Over the ground wiring layer are formed chip electrodes at equal intervals, and any one of the chip electrodes is connected via a bonding wire to a bonding electrode. The bonding electrode is formed over a module wiring board over which the semiconductor chip is to be mounted, and the ground wiring layer is connected to it. Harmonic signals are trapped by the ground wiring layer and the bonding wire.

Abstract: The invention realizes a wireless communication module that is capable of transmitting the fundamental wave with low loss and reducing the double higher harmonic wave level to a desired level or lower as the whole module. The invention provides a front end module to be used for a wireless communication system such as cellular phone in which at least an output power amplifier, a matching circuit, and a low-pass filter are mounted on one insulating substrate and these circuits are connected in the above-mentioned order, wherein the relative phase of the double higher harmonic wave impedance between phases in view of the matching circuit side and the low-pass filter side from the connection point between the matching circuit and the low-pass filter is set in a range of 180 degrees ±90 degrees.

Abstract: The invention realizes a wireless communication module that is capable of transmitting the fundamental wave with low loss and reducing the double higher harmonic wave level to a desired level or lower as the whole module. The invention provides a front end module to be used for a wireless communication system such as cellular phone in which at least an output power amplifier, a matching circuit, and a low-pass filter are mounted on one insulating substrate and these circuits are connected in the above-mentioned order, wherein the relative phase of the double higher harmonic wave impedance between phases in view of the matching circuit side and the low-pass filter side from the connection point between the matching circuit and the low-pass filter is set in a range of 180 degrees ±90 degrees.

Abstract: A directional coupler for detecting an output of a high frequency circuit module includes a main line and a sub-line overlapped with the main line with a dielectric material. The sub-line is set, in width, narrower than the main line and both side edges of the sub-line are allocated at the internal side of both side edges of the main line. Accordingly, the sub-line is surely provided opposed to the main line in the total width area and a signal current flowing into the main line can be detected in higher accuracy. Therefore, a wireless communication system for controlling an output of the high frequency circuit module by including such directional coupler assures stable communication.

Abstract: The image processing device of the present invention maps signal values on saturation segments to corresponding signals on an achromatic axis. In conjunction with this, mapping of color signal present around the saturation segments is mapped while preserving the continuity prior to mapping. The image processing device determines the displacement level entailed in mapping color signal surround a saturation segment so as to be inversely proportional to distance from the saturation segments. Since chroma of signals on the saturation segments change precipitously before and after mapping, by mapping signal surround the saturation segments so as to preserve the continuity of the original signals of signals surround the saturation segments, chroma gradation of signals on the saturation segments and signals around saturation segments can be preserved with a high degree of accuracy.

Abstract: At least one of a plurality of achromatic object color ranges is selected based on the image targeted for processing, and a color adjustment process is executed based on the selected achromatic object color range. Image may be reproduced using a color image data after a color correction of the color image data, the color correction being performed according to illumination light source associated with the color image data. Image data may also be output after the color correction. Image data may also be output associated with data related to the illumination light source, to reproduce the image after the color correction.

Abstract: Cross-band isolation characteristics are to be significantly improved without using any filtering circuit. In the central part of a semiconductor chip provided in an RF power module is formed a ground wiring layer from the upper part downward. This ground wiring layer is formed on the boundary between GSM side transistors and DCS side transistors for amplifying different frequency bands. Over the ground wiring layer are formed chip electrodes at equal intervals, and any one of the chip electrodes is connected via a bonding wire to a bonding electrode. The bonding electrode is formed over a module wiring board over which the semiconductor chip is to be mounted, and the ground wiring layer is connected to it. Harmonic signals are trapped by the ground wiring layer and the bonding wire.