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33 results about "Significant error" patented technology

CMS defines a significant medication error is an error which “causes the resident discomfort or jeopardizes his/her health and safety”. Thus, a significant medication error may present as an actual negative outcome, or it may present as a potential for a negative outcome.

Methods of Performing Error Concealment For Digital Video

InactiveUS20080232478A1High quality digital video error concealmentTelevision system detailsPicture reproducers using cathode ray tubesDigital videoSignificant error
Error concealment is used to hide the effects of errors detected within digital video information. A complex error concealment mode decision is disclosed to determine whether spatial error concealment (SEC) or temporal error concealment (TEC) should be used. The error concealment mode decision system uses different methods depending on whether the damaged frame is an intra-frame or an inter-frame. If the video frame is an intra-frame then a similarity metric is used to determine if the intra-frame represents a scene-change or not. If the video frame is an intra-frame, a complex multi-termed equation is used to determine whether SEC or TEC should be used. A novel spatial error concealment technique is disclosed for use when the error concealment mode decision determines that spatial error concealment should be used for reconstruction. The novel spatial error concealment technique divides a corrupt macroblock into four different regions, a corner region, a row adjacent to the corner region, a column adjacent to the corner region, and a remainder main region. Those regions are then reconstructed in that order and information from earlier reconstructed regions may be used in later reconstructed regions. Finally, a macroblock refreshment technique is disclosed for preventing error propagation from harming non-corrupt inter-blocks. Specifically, an inter-macroblock may be ‘refreshed’ using spatial error concealment if there has been significant error caused damage that may cause the inter-block to propagate the errors.
Owner:QUALCOMM INC

Bias circuit for transconductance amplifier

In low-voltage circuits, there is often insufficient voltage to use a current source to bias a transconductance amplifier stage. This is particularly true in mixers where a switching circuit must be stacked on top of the transconductance input stage. One way around this problem is to get "double-duty" out of the input differential pair, using it both for gain stage and for DC bias. This is done by AC coupling in a high-frequency input signal, while using a low-frequency, DC-coupled circuit to establish the proper bias level. One common technique is to use a simple current mirror scheme to establish the DC level. Proper biasing using this technique requires good matching of resistance. In some implementations of transconductance amplifiers, particularly those that use inductors as degeneration elements, series resistance of the inductor and interconnect resistance can cause significant errors in the bias current. This invention addresses that problem by using an operational amplifier with a current-sensing resistor and a low-frequency feedback loop to compensate automatically for any resistance errors. The operational amplifier drives the feedback voltage (generated in accordance with the sensed voltage at the current-sensing resistor and applied to one input of the operational amplifier) towards a reference voltage that is applied to the other input of the operational amplifier to bias the transistor(s) in the transconductance amplifier for desired operating conditions.
Owner:LUCENT TECH INC

Failure detection in automated clinical analyzers

The invention is a method for detecting failures in an analyzer for conducting clinical assays. Potential errors that can result in assay failures in an analyzer are identified, as are their potential sources. The probability that an error source so identified will result in a clinically significant error is also determined. Available potential detection measures corresponding to the source of potential errors are identified with a combination of such measures selected and implemented based on their probability of detecting such errors within an acceptable limit with a concomitant low probability of the false detection of an assay failure. Each of the measures selected are functionally independent of others chosen to address the source of the error and are not subject to the same inherent means of failed detection. Applications of the method in a clinical analyzer are also presented.
Owner:ORTHO-CLINICAL DIAGNOSTICS

Active current limiting circuit and power regulator using the same

The present invention mainly relates to a current limiting circuit, also known as over-current protection circuit, and a power regulator using the same. The purpose for the circuit is to protect the power device and the loading circuit for the power regulator. The conventional current limiting circuit takes advantage of a resistor and a MOS to convert the detected over current into a voltage and then turn on a P-typed MOS to clamp the gate voltage of a power transistor so as to achieve the goal of current limiting. However, the process variation for the resistor and said MOS and their temperature variation lead to a significant error to the limiting current. The present invention, therefore, takes advantage of the current comparison to enhance the accuracy for the current limiting circuit.
Owner:HOLTEK SEMICON

Circuit to Compensate for Inaccuracies in Current Transformers

An improved measurement circuit includes a current transformer and an active feedback circuit operated as a negative resistance that matches the value of the winding resistance of the current transformer. An amplifier in the feedback circuit provides power to drive a secondary current through a sense resistor and the transformer winding resistance, reducing the most significant error source in a current transformer circuit by presenting a negative impedance to the current transformer. Combined with the positive resistance of the transformer's winding, the negative impedance results in a net burden of zero on the current transformer, which eliminates the need for the transformer having to provide power to drive the secondary current. This facilitates the use of smaller transformers while achieving reduced measurement errors. Thus, a single, compact measurement device may be used in a wide range of applications with high measurement performance.
Owner:NATIONAL INSTRUMENTS

Detecting potential significant errors in speech recognition results

In some embodiments, the recognition results produced by a speech processing system (which may include two or more recognition results, including a top recognition result and one or more alternative recognition results) based on an analysis of a speech input, are evaluated for indications of potential significant errors. In some embodiments, the recognition results may be evaluated to determine whether a meaning of any of the alternative recognition results differs from a meaning of the top recognition result in a manner that is significant for a domain, such as the medical domain. In some embodiments, words and / or phrases that may be confused by an ASR system may be determined and associated in sets of words and / or phrases. Words and / or phrases that may be determined include those that change a meaning of a phrase or sentence when included in the phrase / sentence.
Owner:MICROSOFT TECH LICENSING LLC

Underwater robot multi-sensor fusion data processing method

The invention discloses an underwater robot multi-sensor fusion data processing method. Attitude, position, and velocity information of an underwater robot is estimated based on a plurality of sensors; sensor measurement data with significant errors can be better eliminated by fusing all sensor measurement data, so that the underwater robot is not easily affected by single sensor failures, and theunderwater robot multi-sensor fusion data processing method is more suitable for nonlinear systems such as the underwater robot; and the angular deviation and velocity deviation are added to a statevector when constructing the state vector, and the influence of the angular deviation and the velocity deviation on state update is considered to accurately estimate the attitude, position and speed information of the underwater robot. The condition that the process noise is obtained from filtering results and observation results is assumed, and the differential evolution algorithm is used for performing optimization selection on the obtained process noise variance to improve the filtering accuracy. The underwater robot multi-sensor fusion data processing method is applicable to underwater robot type nonlinear systems to accurately estimate the attitude, position and speed information of the underwater robot.
Owner:XI AN JIAOTONG UNIV

Construction method for special structure protograph QC-LDPC code based on Pascal's triangle

The invention relates to a construction method for a special structure protograph QC-LDPC code based on a Pascal's triangle, and belongs to the technical field of channel coding research. The method utilizes the Pascal's triangle to construct a matrix, and specifically comprises the following steps of constructing a weight matrix of the protograph, namely a base matrix Hbase; performing anticlockwise rotation by using the Pascal's triangle structure to acquire an S matrix; filling elements in the S matrix into the weight matrix Hbase of the protograph according to a rule to acquire a base matrix H of the protograph; extending the protograph base matrix H via a zero matrix and a unit matrix to acquire a check matrix, and providing a fast iterative coding algorithm of the codon according tothe structure of H. The base matrix has a quasi bidiagonal structure, avoids four rings and can achieve fast coding, is reduced in coding complexity, and has better iterative decoding performance without significant error floors.
Owner:CHONGQING UNIV OF POSTS & TELECOMM

Failure detection in automated clinical analyzers

The invention is a method for detecting failures in an analyzer for conducting clinical assays. Potential errors that can result in assay failures in an analyzer are identified, as are their potential sources. The probability that an error source so identified will result in a clinically significant error is also determined. Available potential detection measures corresponding to the source of potential errors are identified with a combination of such measures selected and implemented based on their probability of detecting such errors within an acceptable limit with a concomitant low probability of the false detection of an assay failure. Each of the measures selected are functionally independent of others chosen to address the source of the error and are not subject to the same inherent means of failed detection. Applications of the method in a clinical analyzer are also presented.
Owner:ORTHO-CLINICAL DIAGNOSTICS

Detecting potential significant errors in speech recognition results

In some embodiments, a recognition result produced by a speech processing system based on an analysis of a speech input is evaluated for indications of potential errors. In some embodiments, sets of words / phrases that may be acoustically similar or otherwise confusable, the misrecognition of which can be significant in the domain, may be used together with a language model to evaluate a recognition result to determine whether the recognition result includes such an indication. In some embodiments, a word / phrase of a set that appears in the result is iteratively replaced with each of the other words / phrases of the set. The result of the replacement may be evaluated using a language model to determine a likelihood of the newly-created string of words appearing in a language and / or domain. The likelihood may then be evaluated to determine whether the result of the replacement is sufficiently likely for an alert to be triggered.
Owner:MICROSOFT TECH LICENSING LLC

Methods of performing error concealment for digital video

Error concealment is used to hide the effects of errors detected within digital video information. A complex error concealment mode decision is disclosed to determine whether spatial error concealment (SEC) or temporal error concealment (TEC) should be used. The error concealment mode decision system uses different methods depending on whether the damaged frame is an intra-frame or an inter-frame. If the video frame is an intra-frame then a similarity metric is used to determine if the intra-frame represents a scene-change or not. If the video frame is an intra-frame, a complex multi-termed equation is used to determine whether SEC or TEC should be used. A novel spatial error concealment technique is disclosed for use when the error concealment mode decision determines that spatial error concealment should be used for reconstruction. The novel spatial error concealment technique divides a corrupt macroblock into four different regions, a corner region, a row adjacent to the corner region, a column adjacent to the corner region, and a remainder main region. Those regions are then reconstructed in that order and information from earlier reconstructed regions may be used in later reconstructed regions. Finally, a macroblock refreshment technique is disclosed for preventing error propagation from harming non-corrupt inter-blocks. Specifically, an inter-macroblock may be ‘refreshed’ using spatial error concealment if there has been significant error caused damage that may cause the inter-block to propagate the errors.
Owner:QUALCOMM INC

System to evaluate prosthetic sockets

Systems, methods, and software are provided for assessing manufacturing errors of a prosthetic socket to facilitate a clinical assessment of the socket. The embodiments disclosed herein may align and compare a manufactured socket shape to a desired socket shape to determine whether clinically significant errors are present in the manufactured socket. A mean radial error (MRE) may be calculated and compared to a set threshold. If the MRE falls below the threshold an interquartile range (IQR) may be calculated and compared to an IQR threshold. If the IQR falls below the IQR threshold, surface normal angle errors (SNAE) may be calculated and plotted to the surface model. If the SNAE plot does not include closed contour regions, the socket may proceed to patient fitting. If the MRE or IQR thresholds are exceeded, or if the SNAE plot indicates closed contour regions, the socket may be reshaped accordingly, prior to fitting.
Owner:UNIV OF WASHINGTON CENT FOR COMMERICIALIZATION

Data reconciliation and hypothesis testing based multi-fault diagnosis method for power plant system

The invention provides a data reconciliation and hypothesis testing based multi-fault diagnosis method for power plant system, which belong to the technical field of power plant performance monitoring and fault diagnosing. The technical steps of the invention comprise 1) selecting quasi-static measuring data; establishing a system constraint equation and carrying out data coordination calculation; 2) calculating the global hypothesis testing statistic amount; and comparing with the allowable critical value to determine whether the parameters have significant errors; 3) if there are significant errors, recognizing the parameter with errors and removing it from proceeding to the next step; 4) calculating the testing statistic amount after rank reduction and comparing with a new critical value to determine whether the parameters have significant errors; 5) if there are no significant errors, then completing the calculation; and otherwise, repeating steps 3 and 4 until all significant errors are identified through tests. The method uses the idea of sequence elimination to realize fast and accurate fault location one by one. The significant error thresholds can be used as power plant alarm thresholds to prompt operation men at early stage so as to ensure the security of machines and reduce the production costs.
Owner:TSINGHUA UNIV

Timing Recovery Circuit and Method Thereof

In the implementation of timing recovery in conventional communication systems, significant errors are generated from modulo operations under certain extreme conditions by taking input signals of a slicer as datum points. In order to prevent such errors, the input signal of a modulo processing circuit is taken as the datum point in place of the input signal of a slicer. This technique could also be applied to communication systems adopting the minimum mean-square error algorithm, the zero-forcing algorithm, or other relevant algorithms.
Owner:REALTEK SEMICON CORP

Image interpolation device, image processing device, and image interpolation method

An image interpolation apparatus includes: a first processing unit which calculates an error on image data between a patch to be interpolated that overlaps with a masked region and a reference patch that does not overlap with the masked region; a second processing unit which calculates, based on the image data, feature quantities indicating the degrees of flatness of the respective patch regions; a third processing unit which calculates an error between their feature quantities; a fourth processing unit which selects a reference patch that has produced a least significant error based on results obtained by the first and third processing units; and a fifth processing unit which pastes pixel data of the reference patch that the fourth processing unit has selected onto the patch to be interpolated. The third processing unit calculates an error between the feature quantities by comparing the feature quantity of the patch to be interpolated outside of the masked region to that of the entire reference patch.
Owner:SOVEREIGN PEAK VENTURES LLC

Detecting potential significant errors in speech recognition results

In some embodiments, recognition results produced by a speech processing system (which may include two or more recognition results, including a top recognition result and one or more alternative recognition results) based on an analysis of a speech input, are evaluated for indications of potential errors. In some embodiments, the indications of potential errors may include discrepancies between recognition results that are meaningful for a domain, such as medically-meaningful discrepancies. The evaluation of the recognition results may be carried out using any suitable criteria, including one or more criteria that differ from criteria used by an ASR system in determining the top recognition result and the alternative recognition results from the speech input. In some embodiments, a recognition result may additionally or alternatively be processed to determine whether the recognition result includes a word or phrase that is unlikely to appear in a domain to which speech input relates.
Owner:MICROSOFT TECH LICENSING LLC

Robust data coordination method, device and storage medium for alumina production evaporation process

The invention relates to a robust data coordination method, a device and a storage medium for an alumina production evaporation process. The method includes acquiring data of each measurement variablein the process of alumina production evaporation, and establishing a hierarchical robust data coordination model based on a robust estimation function of the data of each measurement variable; processing the data of each measurement variable based on the hierarchical robust data coordination model to obtain a first coordination result. The first coordination result obtained by the method is accurate when there is significant error and the magnitude is uncertain. The apparatus includes a display, a processor, and a computer program stored on a memory and executable on the processor, the processor implementing the steps of the method when executing the computer program. The storage medium stores thereon a computer program which, when executed by a processor, implements the steps of the method described above.
Owner:CENT SOUTH UNIV

A data synchronization correction method based on material balance

The invention relates to the field of data correction, in particular to a data synchronization correction method based on material balance, which comprises the following steps of: S1, establishing a model by adopting a support vector regression method based on a significant error related to measurement and material movement information loss; S2, using VC dimension to represent a measurement-related significant error and a material movement information missing quantitative relation; And S3, detecting and correcting measurement-related significant errors and material movement information loss byadopting a mixed integer linear programming method through minimizing the structure risk. According to the invention, measurement-related significant errors and material movement information loss inthe material balance problem can be synchronously detected and corrected.
Owner:ZHEJIANG SUPCON SOFTWARE

Identifying systematic errors in a data recording system

The present invention differentiates between systematic and non-systematic conditions by observing a figure of merit over a series of many observation events. In a data storage recording environment, the particular figure of merit used is the number of data segments that must be re-written (due to errors) to a recording medium in order to assure that an entire data set is correctly written. A larger number of re-written segments is indicative of a significant error condition. After each data set is completely and correctly written, the number of re-written segments for the data set is reported as an “event.” A running history of the classified events (or the events themselves) is maintained. Then, at a predetermined time, the history is analyzed and a decision made as to whether any observed events meets predetermined criteria for a systematic condition.
Owner:IBM CORP

Method for tuning soft data in multimedia data stream and soft data demapper

The invention proposes a method for adjusting soft data in a multimedia data stream, a soft data demapper, and a multimedia data stream computing system. By determining the adjustment factor for adjusting the signal based on the signal with a low bit error rate, and using the adjustment factor to adjust the soft data, the soft data can be effectively simulated by a Gaussian model with obvious errors from the real situation. It amplifies the influence of signals with low bit error rate and relatively reduces the influence of signals with high bit error rate, so that the obvious errors caused by using the Gaussian model and the derived digital TV signal playback quality problems are solved together.
Owner:MSTAR SEMICON INC

Methods of Performing Spatial Error Concealment For Digital Video

Error concealment is used to hide the effects of errors detected within digital video information. A novel spatial error concealment technique is disclosed for use when the error concealment mode decision determines that spatial error concealment should be used for reconstruction. The novel spatial error concealment technique divides a corrupt macroblock into multiple regions, such as, a corner region, a row adjacent to the corner region, a column adjacent to the corner region, and a remainder main region. Those regions are then reconstructed and information from earlier reconstructed regions may be used in later reconstructed regions. Finally, a macroblock refreshment technique is disclosed for preventing error propagation from harming non-corrupt inter-blocks. Specifically, an inter-macroblock may be ‘refreshed’ using spatial error concealment if there has been significant error caused damage that may cause the inter-block to propagate the errors.
Owner:QUALCOMM INC

A data error processing method and device for metal balance

The invention discloses a metal balance data error processing method and device. The method comprises the steps of obtaining metal balance data in a metal balance table, performing significant error analysis on the metal balance data, removing the metal balance data with significant errors, and performing coordination processing on the metal balance data to enable the metal balance data to conformto a preset constraint condition. Therefore, by removing the data with significant errors in the metal balance data table, the accuracy of the metal balance data is improved, and the work of technicians can be guided.
Owner:YANGGU XIANGGUANG COPPER +1

Timing recovery circuit and method thereof

In the implementation of timing recovery in conventional communication systems, significant errors are generated from modulo operations under certain extreme conditions by taking input signals of a slicer as datum points. In order to prevent such errors, the input signal of a modulo processing circuit is taken as the datum point in place of the input signal of a slicer. This technique could also be applied to communication systems adopting the minimum mean-square error algorithm, the zero-forcing algorithm, or other relevant algorithms.
Owner:REALTEK SEMICON CORP

Identifying systematic errors in a data recording system

The present invention differentiates between systematic and non-systematic conditions by observing a figure of merit over a series of many observation events. In a data storage recording environment, the particular figure of merit used is the number of data segments that must be re-written (due to errors) to a recording medium in order to assure that an entire data set is correctly written. A larger number of re-written segments is indicative of a significant error condition. After each data set is completely and correctly written, the number of re-written segments for the data set is reported as an “event.” A running history of the classified events (or the events themselves) is maintained. Then, at a predetermined time, the history is analyzed and a decision made as to whether any observed events meets predetermined criteria for a systematic condition.
Owner:IBM CORP
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