316 results about "Filter technique" patented technology

Mechanisms and techniques operating in a content distribution network in a peering relationship with a second content distribution network. The system maintains a first client list identifying a first set of client devices associated with a first content distribution network. The system also obtains a second client list identifying a second set of client devices associated with a second content distribution network. The system applies a client list filtering technique to the first client list and the second client list to produce a preferred client list associated with the second content distribution network. The preferred client list potentially identifies at least one preferred client device for which the second content distribution network preferably processes client requests. The system then operates a content routing technique to direct a client request associated with a client device to a content distribution network having a preferred client list that identifies the client device associated with the client request as a preferred client device.

A method and system for providing flexible access resources or services related to particular software applications are described. The system includes a database of Internet sites that have been categorized so that the system determines the category of information that a user is accessing on the Internet. The system is also programmed so users are only allowed to access sites a limited number of times. The system is further programmed to limit a user's access to the Internet based on the network's current bandwidth usage. Moreover, users can requested a postponed access, wherein the resource or service they are requesting is stored to a server, and available to the user at a later time. In addition, if a user chooses to access a resource or service that is within certain predefined categories, they are presented with the option of retrieving the resource or service, but notified that their access will be logged to a file.

Filtering of optical fibers and other related devices. High-energy methods for depositing thin films directly onto the ends of optical fibers can be used to produce high-quality, high-performance filters in quantity at a reasonable cost. These high-quality filters provide the high performance needed for many demanding applications and often eliminate the need for filters applied to wafers or expanded-beam filtering techniques. Having high-quality filters applied directly to optical fiber and faces permits production of high-performance, micro-sized devices that incorporate optical filters. Devices in which these filters may be used include spectroscopic applications including those using fiber optic probes, wavelength division multiplexing, telecommunications, general fiber optic sensor usage, photonic computing, photonic amplifiers, pump blocking and a variety of laser devices.

A method and system for providing virus detection. A virus detection system provides for the use of pattern matching techniques on data at a binary level for virus detection. Whenever an incoming data stream is received, the data stream is segmented into time-based data frames. The time-based data frames are processed to generate associated data frame images utilizing signal processing identification and filter techniques. One or more data frame images are compared to a stored virus image utilizing pattern analysis techniques. A pattern match value associated with each data frame image is generated based on the comparison and a determination is made as to whether or not the pattern match value exceeds a pattern match value threshold. When the pattern match value exceeds the pattern match value threshold, a pattern associated with the virus image is removed from the time-based frames to produce a filtered data stream.

Agile frequency converter and method, IF-RF level exchange process, and notch filtering techniques. System noise and spurious levels generated by channel frequency conversion is reduced in applications requiring broadband combining of frequency converters to form multichannel composite signal. Converter employs two-stage frequency conversion process, with gain exchange system using variable pre-mixer gain and variable post-mixer attenuation to maintain constant RF output signal power level. For those few conversion frequencies where distortion component(s) cannot be filtered without degrading desired signal, IF-RF level exchange is optimized for meeting the carrier-to-distortion (C/D) ratio specifications at slight expense of noise level for that channel only, while still meeting aggregate combined carrier-to-noise (C/N) specification requirements. Optimal apportionment of level exchange for each channel depends on specific frequency rejection capability of spurious components and is matched to filtering capability and stored within non-volatile memory of a microcontroller used in the frequency converter.

A system protects against loss of communication during network attacks. In a first implementation, a system (120) models the behavior of normal users in a network in response to an application of a first packet filtering technique. The system (120) receives a group of packets from a first user subsequent to the application of the first packet filtering technique and creates one or more models reflecting the behavior of the first user based on the received packets. In another implementation, a system (130) receives a stream of packets subsequent to a filtering technique being applied, partitions the packets into groups, where each group corresponds to more than one packet, and classifies each group of packets as a normal group or an attack group using one or more models. Each model reflects a normal response to an application of the filtering technique. The system (130) forwards groups classified as normal groups, thus preventing network attacks from choking off all communication in the network.

The invention relates to a vertical full automation filter press. The existing filtration filter pressing installment as a result of the structure technology, ,the horizontal hand movement filtration frame which uses the plastic has low production efficiency and big environmental pollution; because the semiautomatic pressure filtration installment also uses the electrical controlled method, but the automated coordination performance of other organization is bad, its stability and the production efficiency are low, specially when the seal cavity bearing, the equipment presents vibration and spray phenomenon. The filter press includes the leveling board frame group, the main body support structure, the board frame group opening and holding apparatus, the filtering cloth automatic cycle running gear, the filtering cloth washing device, automatic control system, hydraulic system, craft circuitry and so on. It uses the vertical structure to realize the full automatic operation, thus has high filter efficiency, low energy consumption, high automaticity, high product quality, easy operation, the simple maintenance, and no pollution.

A method for analyzing traffic on road based on taxi cab data includes utilizing buffer region technique, correlation verification technique, trend included angle technique, active and passive car stopping discrimination technique and data drift-filter technique to carry out car speed analysis, out-driving start-stop point OD analysis and car out-driving index analysis; then making integrated analysis of parameter settings and combining with concrete data reported from taxi cabs to count up out-driving index of taxi cab.

A statistical methodology is employed for assisting people with the setting of parameters of software applications or services. With the method, information about demographics and/or about the complete or partial preferences of other people, are analyzed to infer recommendations for settings and functionality of a computer application or service. A system is reviewed with the ability to receive data regarding a plurality of users, and stores respective profiles for these users in a community store. The system can leverage off of these completed and/or partially completed profiles of parameters representing preferences about software operation in connection with building new profiles for users (new and/or existing). Data regarding a user that desires to build a new profile is employed in connection with the community profiles to facilitate the user building a personalized profile. Various statistical and/probabilistic schemes can be employed, for example, collaborative filtering techniques to identify to the user the top n settings by particular parameter(s), top m settings by popularity, top x most similar profiles to facilitate the user selecting most appropriate sub-profiles as part of a personalized profile building and selection effort.

The invention belongs to the optical precise measurement technical field and relates to an ultra-long focal distance measuring method and a corresponding apparatus used for a differential confocal combined lens. The method firstly adopts the differential confocal focusing theory to respectively define the focus position of a reference lens and the focus position of the combination of measured lens and reference lens; then the distance delta between two focuses and the distance d<0> between two lenses are measured and then the formula is adopted to figure out the focal distance of the measured lens and the sensitivity for focal distance measurement can be simultaneously enhanced with the pupil filtering technique during the measuring process. The invention firstly puts forward the adoption of the features of the corresponding micro-lens focus while the differential confocal response curve passes the zero point so as to extend the differential confocal microscopy theory to the ultra-long focal distance measurement field and form the differential confocal focusing theory. The invention integrates the differential confocal focusing theory and the lens combination so as to get the advantages that the measurement precision is high and the anti-interference capability is strong. The invention can be applied to the detection for the lens with ultra-long focal distance and the high-precise focal distance measurement in the optical system assembling process.

This invention relates to protection system in the user identification and filter technique, wherein, current network user can download each kind of materials with most not suitable for children; and we can adopts biological collection technique to judge age of biology but the current device has not the control, limitation or degree on internet for children.

A radial-shaped wireless fence system is provided that contains one or more dogs in a user-defined area without the need for a physical fence or underground wire. The system includes a base unit and at least one collar, and is easy to set up and use. Through improved filtering of consecutive distance measurement values taken between the base unit and the collar, errant measurement values are discounted in terms of their contribution to the current estimate of the dog's distance from the base unit. These filtering techniques, in combination with improved signal strength and antenna diversity in the communication between the base unit and the collar, improve the accuracy and consistency with which the dog's distance from the base unit is tracked so that unwanted corrections are not administered to the dog.

At the information delivery server, access logs for accesses to information items made by users are managed, and a correlation detection condition indicating at least one information item is received from a client. Then, related users who made accesses to that at least one information item are detected according to the access logs, correlated information items that are accessed by the related users are extracted according to the access logs, and the correlated information items are delivered to the client.

Air cooling passages for a gas turbine engine component, and in particular, a blade outer air seal, are provided with a filtering technique to filter impurities before they can reach a metering location. The air filtering techniques include the provision of a plurality of openings which each have a small cross-sectional area when compared to the cross-sectional area of the metering location. These small openings will filter out impurities before they reach the metering location. The metering location has a cross-sectional area that is greater than the cross-sectional area of any one of the openings, however, the total cross-sectional area of the plurality of openings exceeds the cross-sectional area of the metering location such that adequate air is supplied even if several of the openings are clogged.

The invention relates to an acceleration or deceleration control method of numerical control system based on filter technique, which comprises the following steps: planning straight acceleration or deceleration by using the inputted workpiece program data; performing moving average filtering and filter compensation on the planned speed of the straight acceleration or deceleration to obtain a new planned speed value and a position value; performing interpolation on the position value; transmitting the interpolated position value to a servo driver in order to control a servomotor; wherein the moving average filtering of the planned speed of the straight acceleration or deceleration is implemented by adding a moving average filter after planning the straight acceleration or deceleration to control sudden changes of an accelerated speed, particularly comprising the following steps: calculating the speed with a method of planning the moving average filtering speed; changing the smooth degree of the straight acceleration or deceleration by selecting filter length (i.e. controlling the magnitude and the shape of the accelerated speed); and calculating a planned position according to the speed after filtering. The invention solves the vibration problem of a numerically-controlled machine tool during movement, and has the advantages of easy implementation, good compatibility and good flexibility.

A method and apparatus for a zone detection system in which assets and personnel to be monitored are assigned a transmitter that emits a transmitter signal that includes a common code and a unique code. Processing requirements associated with restricted zone monitoring are reduced by scanning received signals for the single common code or a relatively small number of common codes. Processing requirements associated with locating an individual transmitter are reduced by scanning for a single transmitter signal. Transmitter signals are relayed by sub-sector RF-relays to a centralized sector signal processing computer. One or more signal processing computers interface with a system controller that supports a centralized user interface configurable to manage one or more sectors. CDMA matched filter techniques, power signature maps, and two-dimensional/three-dimensional convolution techniques are used to efficiently detect signals and to refine the estimated location a specific transmitter or a group of transmitters.