Patent application number | Description | Published |
20090040428 | Lightguide plate, planar light unit and display apparatus - A sheet-shaped lightguide plate has a substrate layer ( | 02-12-2009 |
20090273732 | PLANAR LIGHT-EMITTING DEVICE AND LIQUID CRYSTAL DISPLAY APPARATUS - A planar light-emitting device having a plurality of lightguide plates to provide a large light-exiting surface has a plurality of light-emitting units each having a lightguide plate having an upper surface as a light-exiting surface, a lower surface opposite to the light-exiting surface, a peripheral side surface extending between the respective peripheral edges of the upper surface and the lower surface, and a light entrance surface defined by a part of the peripheral side surface. Each light-emitting unit further has a light-emitting set adjacent to the light entrance surface to emit light into the lightguide plate through the light entrance surface, and a support member that fixedly supports the light source and the lightguide plate. The light-emitting units are arranged side by side so that the light-exiting or upper surfaces of their respective lightguide plates are substantially flush with each other. | 11-05-2009 |
20090290093 | PLANAR LIGHT-EMITTING DEVICE AND LIQUID CRYSTAL DISPLAY APPARATUS - A planar light-emitting device has a plurality of light-emitting units each including a light source and a lightguide plate. The light-emitting units are arranged with the light-exiting surfaces of their respective lightguide plates being substantially flush with each other. Each lightguide plate has an upper surface as a light-exiting surface, a lower surface opposite to the light-exiting surface, and a peripheral side surface extending between the respective peripheral edges of the upper and lower surfaces. The lightguide plate emits light received from the light source from the light-exiting surface. At least a part of the peripheral side surface is an inclined surface inclined relative to the light-exiting surface. | 11-26-2009 |
20090290094 | PLANAR LIGHT-EMITTING DEVICE AND LIQUID CRYSTAL DISPLAY APPARATUS - A planar light-emitting device allowing for high luminance uniformity has a plurality of light-emitting units ( | 11-26-2009 |
20100309407 | PLANAR LIGHT-EMITTING DEVICE AND LIQUID CRYSTAL DISPLAY APPARATUS - A planar light-emitting device having a plurality of light units each including a light source and a lightguide member that guides light received from the light source through an end surface serving as a light-entrance surface disposed to face the light source and that emits the light from an upper surface and two mutually opposing side surfaces after changing the optical path of the light, and further has a reflecting member having a light-reflecting surface on which the light units are disposed. The lightguide member has an elongated shape. The light units are disposed in linear arrays each in which the light units are linearly disposed in series in the elongated direction of the lightguide member. The linear arrays extend in the elongated direction of the respective lightguide members. The linear arrays extend in parallel with each other and are spaced from each other in a width direction perpendicularly intersecting the elongated direction of the lightguide members. | 12-09-2010 |
20130294085 | LIGHTING DEVICE AND METHOD MANUFACTURING HOLDER OF LIGHTING DEVICE - A lighting device ( | 11-07-2013 |
Patent application number | Description | Published |
20090052510 | DEVICE, METHOD, AND PROGRAM FOR SIGNAL ANALYSIS, AND RECORDING MEDIUM - The time required for analyzing a modulation accuracy of a modulated signal is reduced. A signal analyzing device which analyzes a signal to be measured including multiple frames each of which includes a preamble and a data symbol, includes frame acquisition units which acquire the frame from the signal to be measured, a symbol demodulation unit which demodulates the acquired frame according to symbol demodulation, and a modulation accuracy deriving unit which derives a modulation accuracy based on an output from the symbol demodulation unit, where the frame acquisition unit considers a position displaced by an integer multiple of the length of the frame from a start frame positioned at a start of the signal to be measured as a position of a subsequent frame positioned after the start frame, and acquires the subsequent frame. | 02-26-2009 |
20090135891 | SYMBOL MODULATION ACCURACY MEASURING DEVICE, METHOD, PROGRAM, AND RECORDING MEDIUM - An accuracy of a symbol modulation is accurately measured. A symbol modulation accuracy measuring device receives a signal to be measured from a signal output device, which outputs ideal symbol data generated by the ideal symbol data generating unit, and modulated by the symbol modulation unit according to a symbol modulation as the signal to be measured, via a memory, and measures the accuracy of the symbol modulation. The symbol modulation accuracy measuring device includes a symbol demodulation unit that demodulates the signal to be measured according to a symbol demodulation, and a modulation accuracy measuring unit that measures the accuracy of the symbol modulation based on a result of the demodulation by the symbol demodulation unit, and the ideal symbol data recorded in the ideal symbol data generating unit of the signal output device. The symbol modulation accuracy measuring unit acquires the ideal symbol data from the ideal symbol data generating unit via a digital interface or a recording medium. | 05-28-2009 |
20090209218 | GAIN IN BALANCE MEASURING APPARATUS, PHASE DIFFERENCE CORRESPONDING VALUE MEASURING APPARATUS, METHOD, PROGRAM, AND RECORDING MEDIUM - An object of the present invention is to increase measurement precision for measuring errors of a quadrature demodulator. An error measurement device | 08-20-2009 |
20100134092 | PHASE-DIFFERENCE-CORRESPONDING-VALUE MEASUREMENT DEVICE, GAIN IMBALANCE MEASUREMENT DEVICE, METHOD, PROGRAM, AND RECORDING MEDIUM - A modulation error measurement device according to the present invention receives a demodulated signal containing a demodulated I signal and a demodulated Q signal from a quadrature demodulator receiving an RF signal output by a quadrature modulator and applying the quadrature demodulation to the received RF signal, and measures a quadrature error corresponding to a phase difference between an I component and a Q component of the modulated signal. The quadrature modulator applies quadrature modulation to an original I signal (ω | 06-03-2010 |
20100153042 | MEASUREMENT APPARATUS AND PROGRAM - Provided is a measurement apparatus that measures, as an error under measurement, at least one of a gain error and a phase error of a quadrature demodulator or a quadrature modulator, the measurement apparatus comprising an output control section that causes the quadrature demodulator or the quadrature modulator serving as a measurement target to output a signal; a detecting section that detects a measured signal representing a real component and an imaginary component of the signal output from the quadrature demodulator or the quadrature modulator serving as the measurement target; and a calculating section that calculates, as the gain error or the phase error, a solution for a variable that maximizes a correlation value between the measured signal detected by the detecting section and an ideal signal that includes the error under measurement as the variable and that represents the measured signal that should be output by the quadrature demodulator or the quadrature modulator serving as the measurement target. | 06-17-2010 |