288results about How to "Suppress error" patented technology

A method of noise suppression to suppress noise in a signal containing background noise (314) in a communications path between a cellular communications network and a mobile terminal. The method comprises the steps of: estimating and up-dating a spectrum of the background noise (332, 334); using the background noise spectrum to suppress noise in the signal; generating an indication to indicate the operation of at least one of a discontinuous transmission unit (DTX) and a bad frame handling unit (BFI); and freezing estimating and up-dating of the spectrum of the background noise when the indication is present.

A biosensor is provided with an area in which a reagent having bleaching action is carried in a state where it can be dissolved, at least in a part of a sample application area to which an inspection target solution is applied or the downstream of the sample application area in the direction of the inspection target solution permeating, in a development layer. In the so-constituted biosensor, a colored component in the inspection target solution can be faded by the bleaching reagent, so that the color in parts other than a reactive area is reduced in consequence, whereby a visual judgment is possible and a more accurate measurement result in which a reading error by a measuring device is extremely suppressed can be obtained.

Provided is a multi-beam laser drilling apparatus for drilling a workpiece, simultaneously at two positions while telecentric errors are suppressed, in which a conventional optical system in which galvanometer mirrors are used for a first laser beam, and a galvanometer-mirror system is located close to an fθ lens in order to prevent occurrence of telecentric error. A second laser beam which has been deflected by a second galvanometer-mirror system, transmits through a polarized beam mixers and is incident upon the first galvanometer-mirror system and the fθ lens, and accordingly, the workpiece is drilled simultaneously at two positions with the use of both first and second laser beams.

First image data including a first pixel value according to the intensity of background light is obtained by means of only exposure. Second image data including a second pixel value according to the intensity of the light reflected or scattered by an object is obtained by so controlling light emission and exposure as to receive part of the reflected or scattered light over the whole exposure period. The part of the reflected or scattered light corresponds to the flat period of emitted pulsed light. Third image data including a third pixel value according to the distance to the object is obtained by so controlling light emission and exposure as to receive the part of the reflected or scattered light for a time according to the distance. The first pixel value is subtracted from each of the second and third pixel values so that the influence of the background light can be excluded. The ratio between the subtraction results is calculated so that the influences of factors that vary the intensity of the reflected or scattered light can be cancelled.

A method of noise suppression to suppress noise in a signal containing background noise (314) in a communications path between a cellular communications network and a mobile terminal. The method comprises the steps of:estimating and up-dating a spectrum of the background noise (332, 334);using the background noise spectrum to suppress noise in the signal;generating an indication to indicate the operation of at least one of a discontinuous transmission unit (DTX) and a bad frame handling unit (BFI); andfreezing estimating and up-dating of the spectrum of the background noise when the indication is present.

A system and method enabling acoustic barge-in during a voice prompt in a communication system. An acoustic prompt model is trained to represent the system prompt using the specific speech signal of the prompt. The acoustic prompt model is utilized in a speech recognizer in parallel with the recognizer's active vocabulary words to suppress the echo of the prompt within the recognizer. The speech recognizer may also use a silence model and traditional garbage models such as noise models and out-of-vocabulary word models to reduce the likelihood that noises and out-of-vocabulary words in the user utterance will be mapped erroneously onto active vocabulary words.

A thin-film magnetic head for a heat-assisted magnetic recording which can perform a reliable writing immediately only on a desired track by applying a near-field light to a desired position and range is provided. The head comprises: an electromagnetic coil element for writing data signals, having a pole end reaching a head end surface; and a near-field-light-generating portion for heating a portion of a magnetic recording medium during write operation by generating a near-field light, having a generation end reaching the head end surface and provided adjacent to the pole end and in the leading side of the pole end, and a shape of the generation end on the head end surface being a trapezoid with a shorter edge on the trailing side, or being a triangle with an apex on the trailing side and with a bottom on the leading side.

OFDM signals each including a plurality of subcarriers (including data carriers and pilot carriers) orthogonal to each other are received by a plurality of receiver antennas. The received OFDM signals are each OFDM-demodulated into a plurality of receive subcarriers. Based on the plurality of receive subcarriers, the propagation coefficients of a plurality of space paths are estimated. An inverse matrix of a propagation matrix whose elements are the estimated propagation coefficients is calculated. Interference cancellation is performed for the plurality of receive subcarriers by using the inverse matrix, and transmit subcarriers multiplexed in space are estimated. A reliability of the inverse matrix is calculated. A pilot carrier is extracted from the estimated transmit subcarriers, and the extracted pilot carrier is weighted according to the reliability. An error included in the plurality of receive subcarriers is corrected based on the weighted pilot carrier.

A plurality of macroblocks constituting coded data are inverse quantized using a first quantization matrix that is used when coding a picture, to obtain a plurality of sets of coefficient data. The first quantization matrix is converted to a second quantization matrix using a first conversion value and a second conversion value, where the first conversion value is for converting a low frequency coefficient corresponding to a frequency lower than a predetermined frequency among a plurality of coefficients shown by the first quantization matrix, and the second conversion value is for converting a high frequency coefficient among the plurality of coefficients and is larger than the first conversion value (Step S408). When the second quantization matrix is a matrix for increasing a coding rate of the coded data, a converted scale is calculated by multiplying a quantization scale corresponding to at least one macroblock by β1 (≧1). At least one part of the plurality of sets of coefficient data is quantized using the second quantization matrix and a calculated converted scale that corresponds to a macroblock corresponding to the at least one part of the plurality of sets of coefficient data.

A system and method enabling acoustic barge-in during a voice prompt in a communication system. An acoustic prompt model is trained to represent the system prompt using the specific speech signal of the prompt. The acoustic prompt model is utilized in a speech recognizer in parallel with the recognizer's active vocabulary words to suppress the echo of the prompt within the recognizer. The speech recognizer may also use a silence model and traditional garbage models such as noise models and out-of-vocabulary word models to reduce the likelihood that noises and out-of-vocabulary words in the user utterance will be mapped erroneously onto active vocabulary words.

[Problem] To suppress an erroneous identification resulting from registration speech, and identify the speaker stably and precisely.[Solving means] The speech recognition unit 102 extracts the text data corresponding to the registration speech, as the extraction text data. The registration speech is a speech input by a registration speaker reading aloud registration target text data that is preliminarily set text data. The registration speech evaluation unit 103 calculates a score representing a similarity degree between the extracted text data and the registration target text data (registration speech score) for each registration speaker. The dictionary registration unit 104 registers the feature value of the registration speech in the speaker identification dictionary 108 for registering the feature value of the registration speech for each registration speaker, according to the evaluation result by the registration speech evaluation unit 103.

When clamping a signal from a solid state image sensor, float of an optical black pixel output due to incoming of infrared light avoids a malfunction of a clamp from occurring. When clamping a signal from the solid state image sensor, the difference between the optical black pixel output and a clamp target level is output as a difference output, the difference output is compared with a comparison level to integrate the number of times larger than the comparison level every horizontal line. When the number of times is equal to or more than a certain rate (⅔) from the number of optical black pixels on the horizontal line, an optical black float state is determined and clamping operation is performed in accordance with a held value immediately before.

A system, a mobile communication unit and a method for analyzing a receiver performance of a mobile communication unit are provided. An information is generated in a system simulator, and is transmitted in a transmission signal from a testing device to a mobile communication unit under test via a unidirectional channel. The transmission signal is received and analyzed by the receiver the performance of which is to be tested. By analyzing the received transmission signal the information included in the transmission signal is being obtained. The information obtained from the analysis of the transmission signal is transmitted back from the mobile communication unit in a backtransmission signal via an independent backtransmission channel. The backtransmission signal received by the testing device is analyzed by the testing device for obtaining the information included in the backtransmission signal and the result is compared to the information originally generated.

First image data including a first pixel value according to the intensity of background light is obtained by means of only exposure. Second image data including a second pixel value according to the intensity of the light reflected or scattered by an object is obtained by so controlling light emission and exposure as to receive part of the reflected or scattered light over the whole exposure period. The part of the reflected or scattered light corresponds to the flat period of emitted pulsed light. Third image data including a third pixel value according to the distance to the object is obtained by so controlling light emission and exposure as to receive the part of the reflected or scattered light for a time according to the distance. The first pixel value is subtracted from each of the second and third pixel values so that the influence of the background light can be excluded. The ratio between the subtraction results is calculated so that the influences of factors that vary the intensity of the reflected or scattered light can be cancelled.

A rotation-angle-detecting apparatus comprising a magnet rotor, a magnetic sensor detecting the direction of magnetic flux from the magnet rotor, a correction circuit, and an angle-calculating circuit, the magnetic sensor having bridge circuits X and Y each comprising four connected magnetoresistive devices, each magnetoresistive device comprising a spin-valve, giant-magnetoresistive film, the correction circuit calculating difference (Vx−Vy) and sum (Vx+Vy) from the output voltage Vx of the bridge circuit X and the output voltage Vy of the bridge circuit Y, and making their amplitudes equal to each other, and the angle-calculating circuit determining the rotation angle of the rotor by arctangent calculation from a signal (Vx−Vy)′ and a signal (Vx+Vy)′ supplied with the same amplitude from the correction circuit.

A method for performing data shaping is provided. The method is applied to a controller of a Flash memory, where the Flash memory includes a plurality of blocks. The method includes: according to contents of data to be written into or read from the Flash memory, generating / recovering an input seed of at least one randomizer / derandomizer; and utilizing the randomizer / derandomizer to generate a random function according to the input seed, for use of adjusting a plurality of bits of the data bit by bit. An associated memory device and a controller thereof are also provided.

A phase contrast image is generated on the basis of a plurality of radiation images of an object taken in imaging positions which are different from each other in the distance from the object. An enlargement / reduction processing is carried out on the radiation images as taken in the imaging positions according to the distances between the imaging positions so that the radiation images become substantially the same in their sizes, and a phase contrast image is generated on the basis of the radiation images thus processed.

A rotation-angle-detecting apparatus comprising a magnet rotor, a magnetic sensor detecting the direction of magnetic flux from the magnet rotor, a correction circuit, and an angle-calculating circuit, the magnetic sensor having bridge circuits X and Y each comprising four connected magnetoresistive devices, each magnetoresistive device comprising a spin-valve, giant-magnetoresistive film, the correction circuit calculating difference (Vx−Vy) and sum (Vx+Vy) from the output voltage Vx of the bridge circuit X and the output voltage Vy of the bridge circuit Y, and making their amplitudes equal to each other, and the angle-calculating circuit determining the rotation angle of the rotor by arctangent calculation from a signal (Vx−Vy)′ and a signal (Vx+Vy)′ supplied with the same amplitude from the correction circuit.

A method and apparatus utilizing a prediction guided decimated search motion estimation algorithm are provided. The prediction guided decimated search motion estimation algorithm generates a motion vector used to encode a macroblock in a frame from a video sequence. The algorithm includes generating full-pixel seed vectors, performing a full-pixel search around the generated seed vectors, which is followed by a fractional pixel search. The full-pixel seed vectors generated are a predicted motion vector and a hierarchical motion vector. A fractional pixel search may be conducted around a final motion vector generated by the full-pixel search and may include a half-pixel search and a quarter-pixel search. The prediction guided decimated search motion estimation algorithm can be implemented in both software and hardware. The algorithm is characterized by improved efficiency, scalability, and decreased complexity.

A digital probing type atomic force microscope (AFM) for measuring high aspect structures with high precision. A probe 21 is vibrated while moved to the vicinity of an atomic force region on a specimen surface. The position of the probe is measured when a specified atomic force is detected in the atomic force region. The probe is then moved away from the specimen surface. A servo system for maintaining a gap between the probe and specimen surface is stopped. The probe is moved to a measurement point along the specimen surface while kept away from the specimen. The vibration frequency is a frequency slightly offset from the cantilever resonance point. The atomic force is detected based on the vibration amplitude of the cantilever.

There is provided a method of driving a pixel circuit that includes a light emitting element; a driving transistor that is connected to the light emitting element in series; a storage capacitor that is interposed between a path, which is formed between the light emitting element and the driving transistor, and a gate of the driving transistor; a selection switch that is interposed between the gate of the driving transistor and a signal line; and a first control switch that is interposed between the gate of the driving transistor and the signal line and is connected to the selection switch in series.

A non-volatile semiconductor memory device comprise a memory cell array having a plurality of memory cell units each having a plurality of electrically-programmable memory cell connected in series, a plurality of word lines each connected to each of control gates of said plurality of memory cells, said plurality of word lines including a selected word line connected to a control gate of selected one of said memory cells for programming, and a plurality of unselected word lines different from said selected word line, a bit line connected to one end of said memory cell unit, and a source line connected to another end of the memory cell unit, wherein, when data is programmed into the selected memory cells, a first potential is supplied to said selected word line, and a first unselected word line adjacent, toward a source line side, to said selected word line is set to floating state, and thereafter, a second potential which is higher than said first potential is supplied to said selected word line.

An apparatus includes a test signal generation unit supplying test signals to an orthogonal modulator and a control unit that based on a result of decision by comparison and decision of detection results of a detector detecting envelopes of modulated signals output from the orthogonal modulator responsive to the test signals, derives adjustment values and a compensation value. An estimation means estimates a DC offset and an IQ mismatch of the orthogonal modulator, based on the derived compensation value. The test signals includes a first set including a first test signal (I1, Q1) and a second test signal (I2, Q2) having a predetermined relationship with the first test signal, and a second set of which in-phase and quadrature components have predetermined relationships respectively with in-phase and quadrature components of the first set.

An operational amplifier (opamp) [74] coupled in a negative-feedback configuration [82] [84] comprising a driving opamp [76]; a linear controller [78]; and a mechanism [80] controlling the driving opamp's [76] offset. A voltage signal Vin provided by the feedback network [82][84] characterizes all errors caused by the driving opamp [76]. The controller [78] monitors this voltage and minimizes the signal-band spectral components thereof by inducing an offset in the driving opamp [76]. The offset control mechanism [80] has approximately constant gain and only little phase delay in the signal band. The controller [78] may be a linear high-order Chebychev filter providing substantial gain in a wide frequency range, thereby efficiently suppressing all signal-band errors, including noise, harmonic distortion, and slew-rate errors, caused by the driving opamp [76]. The controller's [78] frequency response can be designed essentially independently of the feedback network's [82][84] feedback factor.The operational amplifier [74] is a general-purpose circuit. Important applications include video amplifiers and current-to-voltage conversion for asynchronous-digital-subscriber-line (ADSL) moderns.

A numerical control device includes: a path local filter which locally interpolates an interpolation interval among a tool path so that a variation in a differential value at an interpolation object point becomes a continuous variation and a pulse interpolation unit which derives a reference time which proceeds per reference unit time which is shortened or extended corresponding to a deceleration instruction or an acceleration instruction according to a special command. The device obtains, from an intervening variable time function, an intervening variable at each time point at every reference unit time of the derived reference time, obtains a position coordinate on each transfer axis, with the position coordinate corresponding to the intervening variable at each obtained time point, obtains a transfer amount of a support in each transfer axis direction from the obtained position coordinate, and sets the transfer amount per reference unit time as a command pulse.

Disclosed is a device for sensing the opening degree of a valve, which can easily determine the upper and lower limits without using upper and lower limit switches so that, besides simplifying the mechanical structure, the device can be easily installed, maintained, and repaired. The device can avoid basic errors and improve the opening degree sensing performance without using upper and lower limit switches, cams, and a spline so that, by simplifying the mechanical structure, the device can be manufactured, installed, maintained, and repaired at a low cost, and its long-term durability is improved. The device has a main gear adapted to disengage from the meter gear when the main gear is rotated excessively so that any damage to the meter gear and potentiometer, which may occur during installation or use, is prevented.

A semiconductor memory device has: a first memory including a data storage area and a redundant data storage area; a second memory as a nonvolatile memory storing a defect address of the first memory; a register; a sequencer; and a decoder. The sequencer reads out the defect address from the second memory and stores the read defect address in the register. When accessing a target address in the first memory, the decoder compares the target address with the defect address stored in the register, and selects any of the data storage area and the redundant data storage area of the first memory based on a result of the comparison.

Provided as a method and an apparatus for controlling a connection status of a UE. The method includes receiving specific RRC status instruction information for a UE from a mobility management entity (MME) and determining a RRC status for the UE based on the specific RRC status instruction information when the RRC status for the UE is changed, in which the specific RRC status is different from a RRC connection status and a RRC idle status.