摘要:
A resource allocation control unit is provided between the despreading process unit and the channel decoding process unit of a radio base station receiver, and a resource for a channel decoding process is allocated only when there is actually user communication data in a communication service that is not of a continuous data communication under control of the resource allocation control unit. Thereby, the number of resources of the channel decoding process unit is smaller than the number of resources for despreading processes corresponding to the number of users that can receive the services simultaneously.
摘要:
A voltage memory stores a signal level of a transmission signal from a signal generator at a timing of a clock signal, and outputs the transmission signal. A voltage difference detector detects a signal level of a transmission signal at a timing subsequent to the timing and detects a first signal level difference between the signal level and the signal level from the voltage memory. A maximum value detector, a voltage difference detector and bias voltage sources delay the transmission signal so as to keep a rise time of the transmission signal substantially within a predetermined value range by adding capacitances corresponding to the first signal level differences from the voltage difference detectors to transmission lines.
摘要:
The present invention provides display apparatus including: liquid crystal panel for displaying left and right images; liquid crystal driver for writing image signal into liquid crystal panel; backlight source for radiating light to liquid crystal panel; and controller for controlling backlight source so that it emit the light during first emission periods which are set for left viewing period while left image is viewed with left and right viewing periods while right image is viewed with right eye, respectively, wherein controller controls backlight source so that it emits the light during second emission period within non-viewing period, during which none image is viewed, and sets turn-off period during which backlight source is turned off between first and second emission periods.
摘要:
Provided is a backlight device, wherein when both the drive duty and the drive current are controlled in each of separated areas, the image quality is improved by preventing the change of luminance even when there is a difference between the adjustment resolutions of both the drive duty and the drive current. A light-emitting unit (121) comprises a plurality of light-emitting areas. A motion amount detecting unit (131) detects the motion amount of an image in each of a plurality of motion areas each corresponding to at least one or more light-emitting areas. A drive condition specifying unit specifies a drive condition including the duty and pulse height value of a drive pulse for causing each of the plurality of light-emitting areas to emit light, on the basis of the detected motion amount. A drive unit drives each of the plurality of light-emitting areas according to the specified drive condition. With one of the duty and the pulse height value of the drive pulse, the adjustment resolution of which of the drive unit with respect to the light emission luminance is lower, as a first parameter and the other the adjustment resolution of which is higher as a second parameter, the drive condition specifying unit determines the value of the first parameter on the basis of the detected motion amount, and thereafter determines the value of the second parameter on the basis of the determined value of the first parameter.
摘要:
A liquid crystal drive unit performs overdrive processing such that when driving a liquid crystal panel so as to increase a brightness toward a target brightness determined by a left-eye video signal or a right-eye video signal, the liquid crystal drive unit drives the liquid crystal panel in accordance with a drive amount corresponding to a brightness of not less than the target brightness and, when driving the liquid crystal panel so as to reduce the brightness toward the target brightness, the liquid crystal drive unit drives the liquid crystal panel in accordance with a drive amount corresponding to a brightness of not more than the target brightness. In the overdrive processing, the drive amount corresponding to the same target brightness differs depending on a scanning position on a display screen of the liquid crystal panel.
摘要:
Disclosed is a backlight device that reduces elevated black levels and the visibility of flickering when displaying a video. A light-emitting unit (121) is provided with a plurality of light-emitting areas that individually emit illumination light, and illuminates a liquid crystal panel (110) with the illumination light from the plurality of light-emitting areas. A motion detection unit (150) detects image motion from an image signal. A brightness control unit (130) acquires a brightness determination reference value for each light-emitting area on the basis of the image signal, and in regards to each of the plurality of light-emitting areas, weights the acquired brightness determination reference value for each of the one or more light-emitting areas that constitute a weighting region and determines the light emission brightness value for each of the light-emitting areas on the basis of the weighting results. An LED driver (122) drives each of the plurality of light-emitting areas in accordance with the determined light emission brightness value for each of the light-emitting areas. The brightness control unit (130) dynamically sets the light-emitting areas that constitute the weighting areas in accordance with the detected motion.
摘要:
A plasma display device includes: a plasma display panel; a front glass; a conductive filter attached to a front surface or a back surface of the front glass; a back cover; and a plurality of glass pressing pieces each of which presses a corresponding one of four sides of the front glass and makes the conductive filter and the back cover be connected electrically. Among the plurality of glass pressing pieces, glass pressing pieces disposed on one pair of opposite sides of the front glass are electrically connected with the conductive filter at the front surface side thereof, and glass pressing pieces disposed on the other pair of opposite sides of the front glass are electrically connected with the conductive filter at the back surface side thereof.
摘要:
The backlight apparatus allows brightness control with minimum image quality deterioration. This apparatus has: an illuminating section (20) that radiates illumination light on a back of a liquid crystal panel (10) which comprises a plurality of image display areas and which displays an image by modulating per image display area the illumination light according to an image signal; and a brightness determining section (30) that determines a light emission brightness value of the illuminating section (20) and renews a light emitting state of the illuminating section (20), based on the determined light emission brightness value, and the illuminating section (20) has a plurality of light emitting areas illuminating each of a plurality of image display areas, and the brightness determining section (30) determines a light emission brightness value of the first image display area, from values acquired by applying weights to the first information based on an input image signal of the first image display area and the second information based on the input image signal of the second image display areas, and changes the weights for the first information and the second information based on luminance of ambient light surrounding the backlight apparatus.
摘要:
A differential transmission line that has three or more signal lines and with which there is little unwanted radiation noise is provided. The differential transmission line 2 is provided with three signal lines 2a, 2b, and 2c that transmit differential signals from a differential driver IC1 to a differential receiver IC3, and the majority of the signal lines 2a, 2b, and 2c is provided in conductor layers T2 and T3 of a printed circuit board 4. The signal lines 2a, 2b, and 2c are provided with a signal line parallel segment, a signal line route length adjustment segment that is on the differential driver IC1 side and that connects from differential signal output terminals 1Ea, 1Eb, and 1Ec in the differential driver IC1 to the signal line parallel segment, and a signal line route length adjustment segment that is on the differential receiver IC3 side and that connects from the signal line parallel segment to differential signal input terminals in the differential receiver IC3, wherein the signal lines 2a, 2b, and 2c are formed such that their signal line route length adjustment segments on the differential driver IC1 side are equal in length to one another.
摘要:
The present invention sufficiently reduces unwanted radiation in a plasma display panel (PDP) display device. The display device includes a PDP having a pair of electrodes, a first, a second, and a third conductive member, and a pair of driving circuits used to apply a voltage to their respective electrodes. Each conductive member has substantially the same width and height as the PDP, and the first, second, third conductive members are disposed on the rear surface of the PDP, in this order on the rear side of the PDP. The PDP and the conductive members are connected electrically to one another in the end portions of these elements, either directly or via the driving circuits, so that the direction of the current flowing in the PDP during driving and discharge coincides with the direction of the current flowing in the third conductive member, and is opposite from the direction of the current flowing in the first conductive member and the second conductive member.