279 results about "Factor base" patented technology

A software based method and system providing secure and robust multifactor authentication of internet users using at least one factor each of 1) Something you know; 2) Something you have; and 3) Something you are—A physical characteristic of the user or his / her computer / device. This method of authenticating the identity of a user to determine access to a host includes providing an encrypted key string based on one or more static and dynamic factors corresponding the data instances of a user or his / her computer / device, one or more static and dynamic factors corresponding the data instances of the host, and user input factors; evaluating the factor-based data instances to determine if the user's identity is authenticated; and granting or restricting the user's access to the host based on authentication results. The provider generates a key string based on the inputs gathered / provided, time stamps the key, encrypts the key and sends it to the host. The host in turns decrypts the key string, evaluates the static factors against its database, and evaluates the dynamic factors based on pre-defined logic. The user is successfully authenticated if all validations are positive. Based on the authentication results the user is granted or restricted an access to the host resources. This method and system significantly reduces the chances of identity theft occurring from phishing, pharming, man-in-middle theft, spy-ware, and key stroke logger in everyday consumer e-commerce by deploying multifactor authentication based on static and dynamic factors stored / generated at multiple places, key encryption, key time stamping, and elimination of key strokes.

A parallel fluid processing system including multiple fluid process regions containing solid material in fluid communication with a common first fluid source may be used to conduct analyses and / or synthesis in parallel. A parallel fluid processing data correction method includes supplying and processing a calibrant in each fluid process region, measuring a first physical parameter and deriving at least one correction factor based on the parameter, supplying and processing at least one second fluid in each fluid process region, and then applying the correction factor to yield corrected process data. Retention time correction, peak area correction, and other useful data corrections may be performed. Parallel fluid processing may be performed with microfluidic devices and systems. A system for correcting retention times in parallel liquid chromatography is further provided.

Concepts and technologies are disclosed herein for scored factor-based authentication. A verification service can receive an authentication request from a requestor, wherein the authentication request identifies a transaction. The verification service can determine a risk associated with the transaction, an authentication score based upon the risk, a plurality of groups of authentication factors, each of which the authentication score. The verification service can provide factor group data identifying the plurality of groups of authentication factors to the requestor.

A method of authenticating the identity of a user to determine access to a system includes providing a plurality of factor-based data instances corresponding to a user, evaluating the factor-based data instances to determine if the user's identity is authenticated, and granting or restricting the user's access to the system if the user's identity is authenticated. More particularly, the method includes providing a modified data instance based on a second data instance, generating a key based on a first data instance, applying the key to the a modified data instance to generate a recovered data instance, interrogating the recovered data instance against the second data instance to generate an authentication value as a result of a correspondence evaluation, and granting or restricting the user's access to the system based at least in part on the validity of the authentication value.

A communication system (100) determines whether to establish a point-to-multipoint communication or a point-to-point communication for conveyance of Multimedia Broadcast Multicast Service (MBMS) data based on a number of mobile stations (MSs) (102-104), both idle mode and maintaining an active connection, serviced by the system and subscribed to an MBMS service. The system, broadcasts (306) a control message that includes an access probability factor. In order to avoid overloading the system with responses to the control message, MSs maintaining an active connection ignore (506, 508) the control message while idle mode MSs determine (506, 512) whether to respond based on the access probability factor. The system compares (310) a number of received responses to a threshold and determines whether to establish a point-to-multipoint communication (312) or a point-to-point communication (322) based on the comparison. The system also adjusts (314, 330) the access probability factor based on the number of responses.

By automatically compensating for unwanted lighting effects caused by varying ambient light sources, digital still images and video are made to appear more naturally realistic. A set of correction factors based upon an ascertained ambient lighting conditions, such as color temperature, provides for selectively color correcting only those pixels requiring correction. In this way, only those portions of a digital image having excessive color due to ambient light conditions are improved without affecting those portions of the digital image not requiring correction.

A method of scaling complexity of a video processing system including determining a power saving factor based on an operating parameter and adjusting processing of video information based on the power saving factor to reduce computation complexity. The operating parameter may include available power and / or available processing capacity. A method of complexity scalability for a video processing system using prioritized layered coding including determining a power saving factor based on one or more metrics, such as power capacity and / or available processing capacity, and reducing processing complexity of multiple prioritized coding functions in a predetermined order of priority based on the level of the power saving factor. A video processing system including a power management circuit which determines the power saving factor and a video encoder system which correspondingly adjusts computation complexity.

Systems for monitoring an inventory condition of objects based on captured images are described. An exemplary system includes at least one storage drawer, each storage drawer including a plurality of storage locations for storing objects, wherein each drawer is associated with an identifier with known color attributes; and an image sensing device configured to capture an image of one of the storage drawers along with the associated identifier. A data storage device of the system stores, for each storage drawer, information of the known color attributes of the associated identifier. A data processor of the system is configured to access information of the known color attributes of the identifier associated with the drawer corresponding to the captured image; determine color attributes of the identifier in the captured image; determine a correction factor based on the color attributes of the identifier in the captured image and the known color attributes of the identifier; and apply the correction factor to subsequent images captured by the image sensing device.

The invention relates to a smooth path planning method for mobile robots based on a dynamic complex environment, and belongs to the field of robot path planning. The method comprises the steps of starting; searching for an optimal path; conducting smooth treatment on the optimal path; ending. The step of searching for the optimal path uses a two-way RRT algorithm with the idea of gravity of an artificial potential field to perform path searching, that is, the artificial potential field gravity guides a random tree to grow toward a target direction, and the RRT algorithm is prevented from randomly sampling the global; a two-way A* algorithm after a heuristic function is improved is adopted to add angle factors based on distance factors, the units of distances and angles are normalized, thepath planning time is greatly reduced, and the convergence speed of paths is improved; smoothing treatment is conducted on the optimal path, a Freudian smoothing algorithm is adopted to remove redundant nodes, a B-spline method is used three times for smoothly connecting remaining nodes, and the smooth optimal path is finally obtained.

The methods, apparatus, and systems described herein are designed to identify fraudulent callers. A voice print of a call is created and compared to known voice prints to determine if it matches one or more of the known voice prints. The methods include a pre-processing step to separate speech from non-speech, selecting a number of elements that affect the voice print the most, and / or computing an adjustment factor based on the scores of each received voice print against known voice prints.

A system and method for creating a combined or mixed-energy image using both low- and high-energy CT data sets acquired using a dual-energy CT system. The low- and high-energy datasets are mixed using desired weighting factors to mimic a “single-energy” image. The low-energy dataset provides data with improved contrast enhancement, but with increased noise level. The high-energy dataset provides data with lower contrast enhancement, but with better noise properties. By combining the low- and high-energy datasets in accordance with the present method, the resulting mixed-energy images utilize the information of full dose of radiation used in the dual-energy scan. A plurality of weighting metrics can be selected, including patient size, dose partitioning, or image quality, to determine the desired weighting factors based on the weighting metrics. By selecting the proper weight factors, image noise can be reduced and / or the contrast to noise ratio can be increased in the mixed-energy image.

Management systems, methods, and mediums. A method includes identifying a set of layers and a zoom factor based on a depth of a graphic to be displayed. The set of layers comprise symbols for objects corresponding to devices in a building managed by the management system. The method includes identifying a number of visible objects from the objects of the symbols in the identified set of layers based on the zoom factor. The method includes identifying a state of a device represented by a visual object in the number of visible objects from the management system communicably coupled with the devices. Additionally, the method includes generating a display for the depth. The display includes the identified set of layers, a symbol for each of the number of visible objects in the identified set of layers, and a graphical indication of the state of the device.

Adaptive methods and systems for applying a channel correction factor to received signals to correct errors caused by channel distortion. The channel correction factor is dynamically calculated and updated based on the received signal or signals. A receiver continuously calculates an error factor representing a deviation of the received signal from the signal being transmitted, and generates the channel correction factor based on the error factor. Since the error factor includes information related to channel distortions, the channel correction factor so calculated adapts to the change of channel characteristics. If preferred, an advanced algorithm can be used to predict the channel response for the next incoming signal such that the receiver can correct channel errors on a substantially real-time basis.

A method for determining an estimated operating parameter for a gas turbine including the steps of: determining an estimated operating parameter using an algorithm have an input from a sensor, wherein the algorithm includes a trim factor; determining a first trim factor based on a comparison of the first estimated operating parameter and the output of the sensor when a condition of the sensor is in a first mode, and during a subsequent determination of the estimated operating parameter, applying the first trim factor to subsequently determine the estimated operating condition if the condition of second sensor is in a second mode.

A method for obtaining a quantization factor for image compression by quantization of coefficients of a transformation of an image or part thereof, comprising determining an entropy-related sensitivity to quantization of at least a part of the image; and determining a quantization factor based on the entropy-related sensitivity.

Factor retrieving is a major approach for pulse wave analysis. Stiffness index and cardiac output are widely used factors for cardiac risk detection. Research has been done on clinical pulse wave data which are collected by pulse oximeter. The result shows that collected factors have a positive correlation with certain cardiac risks. Some adjustments have been applied on the algorithms that increase the significance. In addition to the factor based analysis, other signal processing techniques for pulse waveforms are included such as bispectrum estimation, Wavelet transform, and weighted dynamic time warping. Bispectrum estimation and Wavelet transform have meaningful features of pulse waveforms with some special shapes. Weighted dynamic time warping compares the similarity of waveforms. It also includes medical significance into the calculation by adjusting the weight vector. This algorithm has higher accuracy when providing more samples to compare. The factor based analysis and waveform analysis compose an analytic model which can be used for risk evaluation, classification and disease detection.

A controller and a method for use in a vehicle to limit noise, vibration, and harshness (NVH) by controlling torque matching between a first power source and a second power source. A first and a second torque estimate are made for the first power source. The torque matching comprises calculating a correction factor based upon a comparison of the torque estimates made during steady-state operating conditions of the vehicle. The first torque estimate is based on operating parameters for the first power source and the second torque estimate is based on operating parameters for the second power source.

The embodiment of the invention discloses a TD (time division) frequency planning and scrambling code planning method based on an adjacent zone priority level, comprising: an adjacent cell priority level is generated through a zone adjacent factor, a zone factor and a zone direction factor based on the base station zone attribute according to the system technical scheme; and a TD main carrier frequency is distributed according to the generated adjacent zone priority level to ensure the minimality of the frequency interferences among zones; and then, a system assigns base scrambling code blocks and scrambling codes according to the adjacent zone priority level and the frequency so as to ensure the average minimization of the mutual interference of the frequency scrambling code among zones. According to the embodiment of the invention, the calculation method of the adjacent zone priority level is more reasonable, and the setting and switching process of the adjacent zone relationship is more reasonable. Furthermore, co-frequency encounter phenomena among the adjacent zones are avoided by adopting the scheme, so that the mutual correlation of the scrambling codes among the adjacent zones is minimal, and the maximal frequency resource and scrambling code resource utilization and the minimum frequency and scrambling code interferences among zones are ensured. And the network performance indexes such as call completing rate are improved, and the client perception quality is greatly improved.

A receiving method and a direct conversion receiver are provided. The receiver comprises a mixer (308) for mixing a received signal into a base band signal com-prising I and Q branches, and an A / D converter (316) for converting the base band signal into digital form, and a phase adjuster (318) for performing a frequency selective IQ phase error estimation and for correcting the digitised signal with frequency selective correction factors based on the error estimation.

The embodiments described in the instant application provide a system for generating checkpoints. In the described embodiments, while speculatively executing instructions with one or more checkpoints in use, upon detecting an occurrence of a predetermined operating condition or encountering a predetermined type of instruction, the system is configured to determine whether an additional checkpoint is to be generated by computing a factor based on one or more operating conditions of the processor. When the factor is greater than a predetermined value, the processor is configured to generate the additional checkpoint.

Various embodiments of the present invention provide systems and methods for reducing low frequency loss in a magnetic storage device. For example, some embodiments provide data processing circuits that include: an input circuit, a processing circuit, a data detection circuit, and a baseline compensation circuit. The input circuit receives a first data input and provides a second data input. The input circuit excludes low frequency energy exhibited in the first data input from the second data input. The processing circuit generates a representation of the second data input, and the data detection circuit generates a representation of the first data input based at least in part on the representation of the second data input. The baseline compensation circuit calculates an accumulated difference between the representation of the first data input and the representation of the second data input across a number of bit periods, and calculates a compensation factor based at least in part on the accumulated difference.

Methods, systems and content have been developed for increasing the bandwidth available to a bandwidth-constrained medium for transmitting digital video content. The content that is to be transmitted is compressed in proportion to the desirability of the content. The desirability of the content is determined by obtaining human-factors data indicative of whether a selected item of content is highly desirable. A desirability score derived from the data is assigned to the content. The desirability score determines the compression level. Feedback systems change the level of compression as the desirability of the content changes with time.

A memory controller is provided. The memory controller includes an initiator block configured to arbitrate requests corresponding to data from multiple ports. The initiator block includes an arbitration module configured to consider a latency factor and a bandwidth factor associated with the data from a port to be selected for processing. A state machine is in communication with the arbitration module. The state machine is configured to generate a signal to the arbitration module that is configured to select the data associated with the port based upon the latency factor and the bandwidth factor. Task status and completion circuitry configured to calculate the bandwidth factor based upon previous data selected from the port is included in the initiator block. The task status and completion circuitry is further configured to transmit the calculated bandwidth factor to the state machine. A method for arbitrating across multiple ports is also provided.

The present invention provides a ripple compensation method and apparatus that provides a means to compensate for drive current ripple-induced brightness fluctuations in an LEE based illumination system. The ripple compensation apparatus comprises a ripple evaluation module which is configured to evaluate a ripple compensation factor based on an evaluated fluctuation of the drive current. The evaluation of the fluctuation of the drive current can be determined based on information collected during operation of the LEE based illumination system and / or based on predetermined operational characteristics of the LEE based illumination. A control system comprises the ripple evaluation module and is operatively coupled to the one or more light-emitting elements, wherein the control system is configured to determine and provide control signals for operation of the one or more light-emitting elements based on the ripple compensation factor.

A method of encoding a block of pixels in a digital video sequence that includes computing an average texture measure for a plurality of blocks of pixels encoded prior to the block of pixels, computing a texture measure for the block of pixels, computing a block quantization step size for the block of pixels as the product of a quantization step size selected for a sequence of blocks of pixels comprising the block of pixels and a multiplication factor selected from a set of multiplication factors based on a ratio of the texture measure and the average texture measure, and quantizing the block of pixels using the block quantization step size.

A defogged image denoising method based on transmissivity comprises the steps: (1) obtaining a defogged image containing noise and a transmissivity image, (2) roughly estimating an overall noise variance, (3) according to the noise variance confirmed in the step (2), confirming and calculating several parameters, (4) according to the parameters, searching similar pixels, using the transmissivity as a criterion, pre-screening the pixels in the searching range, and removing points dissimilar to pixels to be denoised, (5) constructing a correction factor based on the transmissivity and weakening pixel weight polluted by the noise, (6) calculating a gradient mean value difference of a whole image and a searching window, inputting a built parameter optimization model, and conducting adaptive correction on denoising parameters in different areas, (7) calculating a similarity weighted mean value of all the pixels in the searching range to replace the pixels to be denoised, and (8) outputting a denoising result after all the pixels are processed. The defogged image denoising method has the advantages of being high in detail protection degree, good in denoising effect, low in complexity and the like.