Patent application number | Description | Published |
20110095965 | MULIT-SCREEN DISPLAY DEVICE - A multi-screen display device of the present invention includes a master liquid crystal display device and one or more slave liquid crystal display devices which are mutually communicable with each other. Each of the liquid crystal display devices includes an LCD panel, a brightness sensor, brightness adjustment value adjustment means, and backlight control means. The brightness sensor is provided on a rear face side of the LCD panel, and detects the brightness of a backlight. The brightness adjustment value adjustment means adjusts a brightness adjustment value based on a result of comparison between a brightness measured by the brightness sensor and target brightness. The backlight control means adjusts the brightness of the LCD panel by controlling a time period for lighting the backlight based on the brightness adjustment value. The master liquid crystal display device further has target brightness adjustment means for receiving the brightness adjustment values from the slave liquid crystal display devices and adjusting the target brightness based on the brightness adjustment values of all of said liquid crystal display devices including the master liquid crystal display device itself. | 04-28-2011 |
20110181565 | MULTI-SCREEN DISPLAY DEVICE - There has been a problem of displacement of luminance and chromaticity among multiple screens due to a temperature change and a temporal change of a light source of the screen. The present invention provides a multi-screen display device including a plurality of image display devices, in which one master device and one or a plurality of slave devices communicable with the master device are included, each of the image display devices is provided with a DMD that modulates light of a light source, a screen that projects an image by modulated output light of the DMD, and an RGB luminance sensor that detects luminance of light from the DMD in an off-state, to output a luminance detection value, the master device is provided with a setting part that sets a luminance setting value unified among the plurality of image display devices based on a value in accordance with the luminance detection values, and each image display device is further provided with a luminance/chromaticity corrector that controls luminance/chromaticity of an image displayed on the screen based on the luminance setting value. | 07-28-2011 |
20120182485 | MULTI-SCREEN DISPLAY APPARATUS - A multi-screen display apparatus is a multi-screen display apparatus in which screens of a master apparatus and slave apparatuses are arranged. Each of the master apparatus and the slave apparatuses includes a light source for three primary colors formed of a semiconductor light emitting element, and a memory circuit for storing a brightness corresponding to a control current that is specific to each of the primary colors of the light source. The master apparatus determines a common target brightness based on the brightness outputtable by the master apparatus itself and the brightnesses outputtable by other apparatuses. Each of the master apparatus and the slave apparatuses reads, as a target control current, the control current corresponding to the target brightness from the memory circuit, and supplies the target control current to the light source. | 07-19-2012 |
20130200821 | MULTI-SCREEN DISPLAY APPARATUS AND LUMINANCE CONTROL METHOD - In the case where luminance of light to be irradiated onto a multi-screen is not homogenized over the entire multi-screen, each of an image display apparatus and image display apparatuses carries out a homogenizing process of light to be irradiated onto a multi-screen over the entire multi-screen. | 08-08-2013 |
20130215334 | PROJECTION TYPE VIDEO DISPLAY - A projection type video display includes: a light source including light source parts, which are the LED arrays each including six LEDs, for every predetermined colors; a light source controller time-division driving each of the light source parts at a timing based on an input video signal to be input from the outside; and a video display device modulating light emitted from each of the light source parts based on the input video signal and projecting the modulated light onto a screen, wherein the light source controller controls only three LEDs among the six LEDs to turn on in each driving of the time-division driving of each of the light source parts. | 08-22-2013 |
20130258190 | VIDEO DISPLAY DEVICE AND MULTI-SCREEN DISPLAY DEVICE - A video display device drives LEDs to emit light by light source driving circuits, detects maximum signal levels for the respective colors from video signals for an amount of n screens (n is an integer equal to or larger than one), and calculates amplification factors for the respective colors based on the detected maximum signal levels. In addition, the video display device amplifies the signal levels of the video signals based on the amplification factors for the respective colors calculated in a power saving mode for reducing power consumption, and controls drive current values of the LEDs to be respectively supplied to the light source driving circuits so as to cancel amplification amounts of brightnesses of the LEDs that correspond to amplification amounts of the signal levels of the video signals amplified. | 10-03-2013 |
20150373803 | LIGHT SOURCE CONTROL DEVICE AND LIGHT SOURCE CONTROL METHOD - A light source control device includes a constant-current circuit that collectively supplies a current to a plurality of LEDs, a current detection circuit that divides the plurality of LEDs into groups and detects a current amount of a current supplied to each of the groups, and a microcomputer that detects an open fault in the LEDs on the basis of a ratio of the current amount in each of the groups and controls a current supplied from the constant-current circuit to be reduced in a case where an open fault is detected in the LEDs. | 12-24-2015 |
20150381954 | MULTI-SCREEN DISPLAY APPARATUS - In a multi-screen display apparatus according to the present invention, a master image display apparatus acquires determination results obtained by an input detector and acquires a video signal of which channel is selected by a selector from each of a plurality of image display apparatuses including the master image display apparatus. In a case where the selector of any of the image display apparatuses selects a video signal of a channel that is not input to the video receiver, the master image display apparatus controls the selector of the image display apparatus to select a video signal of another channel that is input to the video receiver and controls the selector of at least one of the others of the image display apparatuses to select a video signal of the other channel. | 12-31-2015 |
Patent application number | Description | Published |
20090172506 | SEMICONDUCTOR DEVICE AND SIGNAL PROCESSING METHOD - A semiconductor device including a first processing unit processing an input signal based on a plurality of image compression standards, a signal generation unit outputting a switching signal to the first processing unit, a first calculation unit performing an operation on the input signal in accordance with a first coefficient that is based on the switching signal, a second calculation unit performing an operation on an output of the first calculation unit in accordance with a second coefficient that is based on the switching signal, a selection unit selecting one of the output of the first calculation unit and an output of the second calculation unit based on the switching signal, and a third calculation unit selecting one or both of the input signal and the output of the first calculation unit based on the switching signal and performing a predetermined calculation on the selected signal. | 07-02-2009 |
20120195381 | IMAGE PROCESSING APPARATUS AND METHOD FOR PROCESSING IMAGE - An image processing apparatus includes a subsampling circuit to generate a subsampled image based on a sampling position of each frame of an input image; a control circuit to assign a frame at a sampling position which is substantially the same as a sampling position of a frame to be encoded as a reference frame based on information of the sampling position of each frame and a structure of a group of pictures; and an encoder to encode the frame to be encoded by compressing the frame to be encoded using inter-frame prediction based on a subsampled image of the frame to be encoded and the reference frame. | 08-02-2012 |
20140362095 | IMAGE CACHE MEMORY AND SEMICONDUCTOR INTEGRATED CIRCUIT - An image cache memory performs caching of image data, the image cache memory includes a cache buffer, a cache tag unit, a comparator, and a controller. The cache buffer stores cache data for each rectangular block including a plurality of pixels arranged in rectangle, and the cache tag unit stores tags each corresponding to a rectangular-block group including a plurality of rectangular blocks. The comparator makes comparison by using the tags stored in the cache tag unit, and the controller performs the caching by controlling the cache buffer, the cache tag unit, and the comparator. | 12-11-2014 |
20150350670 | CODING APPARATUS, COMPUTER SYSTEM, CODING METHOD, AND COMPUTER PRODUCT - A coding apparatus includes identifying circuitry that identifies based on a count of frames coded referring to a reference frame among a series of frames, a count of vectors specifying search positions on the reference frame of a given frame when detection is performed for a motion vector of a block of the given frame to be coded among the series of frames; and determining circuitry that determines based on the member count and a maximum read data volume that can be read in of the reference frame per unit time, for a single given frame of the series of frames, a first maximum read data volume for a single given frame when image data is read in of a search range that includes a search position specified on the reference frame by a motion vector of a block on a reduced image obtained by reducing the given frame. | 12-03-2015 |
Patent application number | Description | Published |
20130186171 | SUBSTRATE CURVATURE COMPENSATION METHODS AND APPARATUS - A method for providing acceleration data with reduced substrate-displacement bias includes receiving in an accelerometer an external acceleration, determining the acceleration data with reduced substrate displacement bias in a compensation portion in response to a first and a second displacement indicators from a MEMS transducer, and, in response to substrate compensation factors from a MEMS compensation portion, outputting the acceleration data with reduced substrate displacement bias, wherein the first displacement indicator and the second displacement indicator are determined by the MEMS transducer relative to a substrate in response to the external acceleration and to a substrate displacement, and wherein the substrate compensation factors are determined by the MEMS compensation portion relative to the substrate in response to the substrate displacement. | 07-25-2013 |
20130214367 | MEMS-BASED DUAL AND SINGLE PROOF-MASS ACCELEROMETER METHODS AND APPARATUS - An integrated MEMS inertial sensor device includes one or more three-axis MEMS inertial sensor devices, such as accelerometers, with dual or single proof mass configurations. These designs can be compact and can decouple the motion of each axis to minimize the measurement errors due to cross-axis sensitivity. Some embodiments include a frame to decouple the motion of two axes and to provide geometric symmetry. Some embodiments also include double-folded springs. In a specific embodiment, the three axes of an integrated MEMS accelerometer device are entirely decoupled. Thus, the actuation of each axis, through a force due to acceleration, has little or substantially no effect on the other axes. | 08-22-2013 |
20140311242 | MULTI-AXIS INTEGRATED MEMS INERTIAL SENSING DEVICE ON SINGLE PACKAGED CHIP - A multi-axis integrated MEMS inertial sensor device. The device can include an integrated 3-axis gyroscope and 3-axis accelerometer on a single chip, creating a 6-axis inertial sensor device. The structure is spatially with efficient use of the design area of the chip by adding the accelerometer device to the center of the gyroscope device. The design architecture can be a rectangular or square shape in geometry, which makes use of the whole chip area and maximizes the sensor size in a defined area. The MEMS is centered in the package, which is beneficial to the sensor's temperature performance. Furthermore, the electrical bonding pads of the integrated multi-axis inertial sensor device can be configured in the four corners of the rectangular chip layout. This configuration guarantees design symmetry and efficient use of the chip area. | 10-23-2014 |
20140311247 | MULTI-AXIS MEMS RATE SENSOR DEVICE - A MEMS rate sensor device. In an embodiment, the sensor device includes a MEMS rate sensor configured overlying a CMOS substrate. The MEMS rate sensor can include a driver set, with four driver elements, and a sensor set, with six sensing elements, configured for 3-axis rotational sensing. This sensor architecture allows low damping in driving masses and high damping in sensing masses, which is ideal for a MEMS rate sensor design. Low driver damping is beneficial to MEMS rate power consumption and performance, with low driving electrical potential to achieve high oscillation amplitude. | 10-23-2014 |
20140361348 | METHOD AND STRUCTURE OF AN INTEGRATED MEMS INERTIAL SENSOR DEVICE USING ELECTROSTATIC QUADRATURE-CANCELLATION - An integrated MEMS inertial sensor device. The device includes a MEMS inertial sensor overlying a CMOS substrate. The MEMS inertial sensor includes a drive frame coupled to the surface region via at least one drive spring, a sense mass coupled to the drive frame via at least a sense spring, and a sense electrode disposed underlying the sense mass. The device also includes at least one pair of quadrature cancellation electrodes disposed within a vicinity of the sense electrode, wherein each pair includes an N-electrode and a P-electrode. | 12-11-2014 |
20140370638 | MEMS STRUCTURE WITH IMPROVED SHIELDING AND METHOD - A method for fabricating an integrated MEMS-CMOS device. The method can include providing a substrate member having a surface region and forming a CMOS IC layer having at least one CMOS device overlying the surface region. A bottom isolation layer can be formed overlying the CMOS IC layer and a shielding layer and a top isolation layer can be formed overlying a portion of bottom isolation layer. The bottom isolation layer can include an isolation region between the top isolation layer and the shielding layer. A MEMS layer overlying the top isolation layer, the shielding layer, and the bottom isolation layer, and can be etched to form at least one MEMS structure having at least one movable structure and at least one anchored structure. | 12-18-2014 |
20150315016 | METHOD AND STRUCTURE OF MONOLITHICALLY INTEGRATED ABSOLUTE PRESSURE SENSOR - An integrated pressure sensing device and method of fabrication thereof are disclosed. The method can include providing a substrate member having a surface region and forming a CMOS IC layer overlying the substrate and forming an oxide layer overlying the CMOS IC layer. A portion of the oxide layer can be removed to form a cavity region. A single crystalline silicon wafer can be bonded overlying the oxide surface region to seal the cavity region. The bonding process can include a fusion bonding or eutectic bonding process. The wafer can be thinned to a desired thickness and portions can be removed and filled with metal materials to form via structures. A pressure sensor device can be formed from the wafer, and can be co-fabricated with another sensor from the wafer. The pressure sensor and the other sensor can share a cavity pressure or have separate cavity pressures. | 11-05-2015 |