102results about How to "Avoid noise impact" patented technology

A light emitting device capable of performing signal electric current write-in operations at high speed and without dispersion in the characteristics of TFTs structuring pixels influencing the brightness of light emitting elements is provided. The gate length L of a transistor in which an electric current flows during write-in of a signal electric current is made shorter than the gate length L of a transistor in which electric current supplied to EL elements flows during light emission, and high speed write-in is thus performed by having a larger electric current flow than the electric current flowing in conventional EL elements. A converter and driver transistor (108) is used for signal write-in. By using the converter and driver transistor (108) and a driver transistor (107) when supplying electric current to a light emitting element during light emission, dispersion in the transistor characteristics can be made to have less influence on brightness than when using a structure in which write-in operations and light emission operations are performed using different transistors.

A pressure-sensitive capacitive sensor includes a sensing unit in which a plurality of column wires and a plurality of row wires are formed in a matrix, a detecting signal generator, and filters. Capacitances at intersections between the column wires and the row wires change in accordance with externally applied pressure. The detecting signal generator sequentially outputs pulse signals of a predetermined frequency to the column wires of the sensing unit. The filters are connected to the respective row wires of the sensing unit and extract amplitudes of signals of the predetermined frequency. The amplitude is proportional to the capacitance at the intersection.

An electro-optical device comprises a substrate, a scanning line, a data line, a pixel circuit, and a first storage capacitor holding a first voltage corresponding to a data signal. The first storage capacitor includes a first portion and a second portion connected in parallel. The first portion and the second portion overlap when viewed from a direction orthogonal with respect to the first main surface.

A solid-state image capturing apparatus according to the present invention includes: a pixel array in which a plurality of pixels are arranged; a driving circuit for driving each pixel of the pixel array; and a power supply circuit for stepping down an external source voltage supplied from an external power source to generate a pixel source voltage to be supplied to each pixel of the pixel array, where the power supply circuit includes a driver transistor for generating a pixel source voltage from the external source voltage and the driver transistor is operative in a saturated state.

A shift register apparatus is provided. The pull-down unit of each of the shift registers in the shift register apparatus is controlled by itself, previous, and next two shift registers to enhance the ability of pull-down and voltage regulating. Therefore, the circuit structure of each of the shift registers does not need to be designed a large compensation capacitor therein to substantially restrain the coupling noise effect caused by the clock signal, and thus permitting that each of the shift registers can be collocated with a small compensation capacitor to enhance the output capability thereof.

A CATV station apparatus subjects received optical signals to processes such as optical-electrical conversion, signal separation, coupling, and demodulation for obtaining an uplink signal. A received photocurrent monitoring section compares a received photocurrent at a optical receiving section with a predetermined reference current. If the received photocurrent is equal to or higher than the reference current, an amplifying section amplifies a signal output from a signal separating section at a predetermined level. If the received photocurrent is lower than the reference current, on the other hand, it is determined that a non-linear phenomenon, such as stimulated Brillouin scattering, has occurred in an optical fiber. The amplifying section then outputs a signal at a level which does not affect, even after being coupled with other signals, communications performed by other optical transmission systems.

The present general inventive concept relates to apparatuses and / or methods for measuring an IQ imbalance. In one embodiment, a signal generator can provide a first IQ signal of a DC component during a first period and the first IQ signal of a first angular frequency during a second period, an IQ up-conversion mixer can up-convert the first IQ signal by a second angular frequency during the first period and up-convert the first IQ signal by a third angular frequency during the second period to output a second IQ signal, an IQ down-conversion mixer can down-convert the second IQ signal by the third angular frequency to output a third IQ signal and an IQ imbalance detector can obtain a first IQ imbalance (e.g., Rx IQ imbalance) from the third IQ signal during the first period and a second IQ imbalance (e.g., Tx / Rx IQ imbalance) during the second period.

A transfer function calculation unit is configured to calculate a transfer function from a sound source installed in a predetermined target direction to each microphone of a microphone array, and a determination unit is configured to determine whether or not the microphone array is normal on the basis of a difference amount between a transfer function to each microphone and a predetermined ideal transfer function to each microphone.

There is provided an edge detecting method, which is capable of preventing a noise influence caused by imaging device and a color interpolation. The edge detecting method includes the steps of: setting a first kernel based on a center pixel in pixel data arranged in a mosaic structure; setting a second kernel based on the center pixel within the first kernel; detecting whether a pixel having a green value in the second kernel is a defective pixel, and correcting the pixel; converting all pixels of the second kernel into pixels having green value; calculating a slope value by using a mask for detecting an edge in the second kernel; and detecting an edge by adding the slope value to a luminance value obtained by a color space conversion.

In a color conversion device, first color correction amounts are determined from first image data consisting of a plurality of first color data, and second color correction amounts are determined from characteristics information of the first image data is calculated, and the first color correction amounts. The second color correction amounts are added to the first image data, to determine the second image data. The characteristics information is determined by calculating the characteristics information by a calculation using the lightness information and the chroma information of the first image data, so that color conversion reflecting characteristics information including the lightness information and the chroma information of the image is achieved.

An information processing apparatus has a resistance film type touch panel generating position coordinate data at predetermined sampling interval, a liquid crystal display panel driven by a liquid crystal drive voltage, a first control circuit (liquid crystal display panel control circuit) having a first generating circuit generating a horizontal synchronizing signal, a second generating circuit generating an alternating current signal for reversing the polarity of the liquid crystal drive voltage based on the horizontal synchronizing signal, and a third generating circuit generating a noise warning signal based on the horizontal synchronizing signal, the noise warning signal telling the interval at which the polarity of the liquid crystal drive voltage reverses; and a second control circuit (resistance film type touch panel control circuit) changing the predetermined sampling interval based on the noise warning signal and detecting a position coordinate inputted from the resistance film type touch panel at the changed predetermined sampling interval.

This invention is a wireless communication medium processing apparatus which carries out communication with a wireless communication medium, to carry out at least one of reading and writing as to information which was stored in the wireless communication medium, and has a plurality of antenna, a transmission divider which was connected to the plurality of antennas, and a reception compositor which was connected to the plurality of antennas, and is characterized in that the transmission divider divides an inputted signal to output the plurality of antennas, and the reception compositor combines signals from the plurality of antennas and outputs it.

The sound field compensating apparatus includes a section that generates sound-volume regulating test signal; a driving section that drives a speaker; a microphone that receives the output from the speaker; and a control section that processes an output signal of the microphone and that controls operations of respective sections. The sound-volume regulating test signal is a sum signal representative of the sum of single-frequency sinusoidal wave signals whose frequencies are set to the relationship of an integer ratio. The control section causes the driving section to drive the speaker by using the sound-volume regulating test signal to thereby detect signal levels of frequency components of the sinusoidal wave signals from output signals of the microphone. In accordance with an average value of the signal levels, the control section sets a measuring sound volume when the speaker is driven by using the measuring test signal.

The invention provides a refrigerator and a control method thereof. The refrigerator is provided with a compressor used for refrigerating cycle. The compressor is arranged inside a containing part at the top of a refrigerator body. The control method of the refrigerator comprises the steps of obtaining a refrigerator door body opening and closing signal; controlling the compressor to be kept in an off state during preset time after the refrigerator body is opened; and controlling the compressor to return to be in a normal operation mode in a delayed mode after the refrigerator body is closed. According to the technical scheme for the refrigerator with the compressor placed inside the containing part at the top of the refrigerator body, the operation noise of the compressor is eliminated by turning off the compressor after the door body is opened, a refrigerator user is prevented from being influenced by the noise, and the using comfort of the user is improved.

A coupling device for coupling an electronic circuit for at least one antenna unit to exchange electrical signals between the electronic circuit and the at least one antenna unit comprises a first input / output signal path, a matching unit coupled to the first input / output signal path, a filter unit coupled to the output of the matching unit by means of a second signal path and a second input / output signal path for connecting the filter unit to the at least one antenna unit, wherein the signal path arranged between the electronic circuit and the at least one antenna unit are provided completely differential.

The invention relates to a noise elimination method based on signal and noise separation, and belongs to the technical field of geophysical exploration. The thought that effective waves are protected to the maximum degree and interference waves are suppressed to the maximum degree is adopted, firstly, signal and noise separation is conducted on a pre-stack seismic record, the pre-stack seismic record is separated into a signal model and a noise model, signal and noise separation is conducted on the noise model again, and the noise model is separated into a secondary signal model and a secondary noise model; the process is repeated two to three times; finally, data reconstruction is conducted on all the signal models separated previously, and then seismic data including most of effective signals are acquired, wherein noise of the seismic data is completely removed. The influences of all kinds of noise caused by the complex near-surface condition are avoided, the limitation that an existing denoising method is single in technology application is overcome, and the method has the advantages of being good in amplitude preservation, obvious in effect and wide in market application prospect.

A distance image acquisition apparatus includes a projection unit which performs a plurality of times of light emission with a plurality of light emission intensities to project a first pattern of structured light onto a subject within a distance measurement region, an imaging unit which is provided in parallel with and apart from the projection unit by a baseline length, images the subject in synchronization with each of the plurality of times of light emission, and generates a plurality of captured images corresponding to the plurality of light emission intensities, a normalization unit which normalizes a plurality of captured images with coefficients corresponding to the plurality of light emission intensities to acquire a plurality of normalized images, a discrimination unit which compares a plurality of normalized images and discriminates the first pattern projected from the projection unit, and a distance image acquisition unit.

A CMOS image sensor of the present invention comprises an array of a picture element circuit, a unit of correlated double sampling one picture element line of the array, a charge pump type voltage up unit of supplying a predetermined step-up voltage to the picture element circuit that forms an array and a prevention unit of preventing the noise caused by a pumping operation of the charge pump type voltage up unit. The prevention unit may be a prohibition unit of prohibiting a pumping operation of the charge pump type voltage up unit. In the case where the charge pump type voltage up unit comprises a voltage up circuit for assigning a voltage up output in accordance with an assigned clock and a clock generation circuit for generating a clock in such a way that the voltage up output matches with the predetermined upped voltage, the prohibition unit of prohibiting a pumping operation may comprise a not-assignment unit of not assigning an output of the clock generation unit to the voltage up circuit.

The invention provides a motor speed control method, which comprises the following steps: when temperature in a closed housing provided with an electronic system is lower than a first critical temperature, the motor is operated under a none-fan operation mode, wherein, the speed of the motor under the mode is zero; when the temperature in the closed housing provided with the electronic system is higher than the first critical temperature and lower than a second critical temperature, the motor is operated under a mute operation mode, wherein, the speed of the motor under the mode is a fixed speed; and when the temperature in the closed housing provided with the electronic system is higher than the second critical temperature, the motor is operated under a cooling operation mode, wherein, the speed of the motor under the mode is the function of the second critical temperature, and moreover, the speed of the motor is operated between a maximum speed and the fixed speed. The motor speed control method can save energy, reduce noise, improve power loss and increase power efficiency.

A CATV station apparatus 100 subjects received optical signals to processes of optical-electrical conversion, signal separation, coupling, and demodulation for obtaining an uplink signal. A received photocurrent monitoring section 170 compares a received photocurrent at a optical receiving section 110 with a predetermined reference current. If the received photocurrent is equal to or higher than the reference current, an amplifying section 130 amplifies a signal output from a signal separating section 120 at a predetermined level. If the received photocurrent is lower than the reference current, on the other hand, it is determined that a non-linear phenomenon, such as stimulated Brillouin scattering, has occurred in an optical fiber 200. The amplifying section 130 then outputs a signal at a level which does not affect, even after being coupled with other signals, communications performed by other optical transmission systems.

The invention is to provide a video picture display unit capable of reducing discomfort given to a user by restraining influence of a noise of fans after the power of the unit is turned off. A timer setting when the power is turned off (off timer setting or sleep setting) is stored in a setting portion of a controller. A decision portion decides as to whether the timer setting is present or non-present, and in cases where the power is turned off by the timer setting, the operation control portion transmits a control signal to a driving circuit so as to cause a fan or a fan to effect low speed rotating operation.