181results about How to "Avoid scanning" patented technology

Embodiments of the present invention provide apparatuses and methods for identifying computer systems that pose a threat for potential dissemination of confidential information, and thereafter, scanning the computer systems for unauthorized activity related to potential dissemination of confidential information. Embodiments of the invention comprise compiling a list of user computer systems that are at risk of accessing, using, or disseminating confidential information; determining whether the computer systems on the list are available for scanning; and scanning the computer systems on the list to identify an incident related to potential or actual threats or breaches of confidential information.

A method for detecting an object in a depth image includes determining a detection window covering a region in the depth image, wherein a location of the detection window is based on a location of a candidate pixel in the depth image, wherein a size of the detection window is based on a depth value of the candidate pixel and a size of the object. A foreground region in the detection window is segmented based on the depth value of the candidate pixel and the size of the object. A feature vector is determined based on depth values of the pixels in the foreground region and the feature vector is classified to detect the object.

System and method for managing the spectrum of a multi-channel wireless communication system. Information related to other channels and bands is exchanged between a client associated to a first channel of the multi-channel wireless communication system and a multi-channel access point. The information includes, inter alia, capabilities of the access point and the client, working channel information of the access point, link quality metrics of the client in the other bands etc.

Provide a shared device control method and server-client system, which inform the client user of the state of a shared device upon accessing the connectable shared device on the network, thereby preventing unwanted situations (for example, the user cannot determine what has happened; the user cannot obtain a desired access result; access results in other fatal errors; and so forth). A shared device, to be shared by a plurality of data processing apparatuses connected via a network, is controlled by one of the plurality of data processing apparatuses, and the other data processing apparatuses inquires of the data processing apparatus controlling the shared device, a reserve or ready state of the shared device, or a mode which displays a window via the network, prior to use of the shared device informs the client user of the state of the shared device.

A wireless apparatus includes a millimeter-wave communication interface configured to exchange information within a millimeter-wave communication network, an UWB communication interface and control means or circuitry configured to activate the UWB interface for communicating location indication to the communication network according to an UWB communication standard. The location indication is intended for locating the wireless apparatus within the network.

The invention provides a data processing method. The method includes the steps that one of one or more items of data including service data is obtained, wherein the one or more items of data wait for service processing; according to a preset rule, an interaction number and a serial number corresponding to the interaction number are generated for one item of data; a mapping table is established for generating a mapping relation between the interaction number and the serial number; one item of data, the interaction number and the serial number are stored at storage positions in a sub-library and a sub-table in a main database, wherein the sub-library and the sub-table correspond to the one item of data and are indicated by the serial number; the service data of the one item of data and the interaction number are sent to perform service processing. According to the method, a storage seeking mode of a distributed system is improved, the library and table where the data are located can be accurately positioned, all libraries and all tables in the database are prevented from being scanned, the overhead for the database is reduced, and the capacity for processing the data through the system is improved.

A reader for reading machine-readable symbols such as barcode, area or matrix code, or stack code symbols employs an aiming beam which may continue to provide an indication of an orientation of a field-of-view of the reader for a set interval following a successful decode of a machine-readable symbol. This provides a more intuitive and efficient user interface, allowing a user to quickly aim at a next symbol to be acquired, without inadvertently acquiring and/or decoding an unintended symbol. This may also reduce the number of user actions required to operate the reader, and may simplify the triggering mechanism interface.

The invention discloses a method and a system for quickly detecting a malicious code. The method comprises the following steps of: acquiring all files at preset detection points; performing conventional engine scanning on all the acquired files; reporting a suspicious file if the suspicious file is discovered; performing behavior pattern judgment on files at detection points for the behavior pattern judgment in all the files if the suspicious file is not discovered; and reporting the suspicious file if the suspicious file is discovered. In the method, other normal files can be prevented from being scanned and the malicious code can be quickly positioned, so that the detection speed is improved. Meanwhile, in the method, attributes of a file without a feature code can be directly judged, so data acquisition and directional analysis are performed on a special environment, and the malicious code which cannot be detected by the conventional quick scanning is detected.

The invention provides a human face detection method, comprising the steps of: importing: importing an image to be processed; sub-image extracting: traversing the image to be processed by using windows of different scales to extract parts of the image to be processed in the windows to serve as sub-images; preprocessing: specific to the sub-images, calculating a Sobel image of each sub-image by using a horizontal Sobel template, and excluding the sub-image if the ratio of the sum of Sobel response values of a predetermined region in the Sobel image to the total Sobel response value of the sub-image is smaller than a preset ratio threshold; detecting: specific to the sub-images passing the preprocessing, excluding non-human-face images by using an Adaboost cascade classifier to obtain candidate human-face sub-images; and verifying: specific to the candidate human-face sub-images, verifying the candidate human-face sub-images by using an Adaboost classifier established based on Haar-Sobel features so as to exclude the non-human-face sub-images, wherein the rest sub-images are taken as the human-face sub-images. The invention further provides human-face detection equipment correspondingly.

A digital broadcasting receiver that uses a channel map containing broadcast information such as channel numbers and virtual channel numbers is described. When a user selects a certain digital channel number, a control unit consisting of a CPU makes a search as to whether or not the number exists in the channel map. If the number does not exist, “No Signal” notice is displayed on a display and if the user selects a scan instruction then, the entire range of frequency band of the broadcasting signal is scanned. If a signal that corresponds to the digital channel number exists, its broadcast is received. Therefore, a search is possible even when the user knows only a virtual channel number and the digital channel number entered by the user is not registered in the channel map.

The invention provides a fast star map identification method of a star sensor, which avoids all-celestial sphere search, reduces the identification time and improves the identification rate. The method comprises the following steps: obtaining a complete star map, and obtaining the current rough gesture of the star sensor by use of a gyroscope combination system; searching all fixed stars in the viewing field from a star table by use of the rough gesture through the star sensor, and calculating possible positions of all fixed stars in the viewing field in an image plane; scanning a small area of the star map centered on the positions, and extracting the star image coordinates of a corresponding observation star; identifying the extracted observation star by use of all fixed stars in the viewing field; and sending the identification result to a gesture calculation module which calculates the current gesture of the star sensor. According to the invention, possible fixed stars in the viewing field of the star sensor are predicted by use of the sensor information, and only by scanning the possible position range in the star map, the star image coordinates of the observation star can be extracted from the star map, thereby avoiding the process of scanning the entire star map; and moreover, as all-celestial sphere search is avoided, the identification time is reduced, and the identification rate is improved.

A scanning system comprises a server, scanner, and terminal, the server including: a reception unit configured to receive a scan setting and a start instruction from one of the scanner and the terminal; a storage unit configured to store the scan setting and to issue the identification information; a determination unit configured to determine which of the scanner and the terminal has transferred the scan setting and the start instruction; and a processing unit configured, when the determination unit determines that the scanner has transferred the scan setting and the start instruction, to transfer the scan setting and the start instruction to the scanner, and when the determination unit determines that the terminal has transferred the scan setting and the start instruction, to cause the storage unit to store the scan setting and to transfer, to the scanner, identification information indicating the stored scan setting.

The invention relates to a distributed automatic application operation abnormity detecting method and system. The distributed automatic application operation abnormity detecting method comprises the steps that routing inspection and matching are conducted on log files according to keywords in logs, the logs matched with the keywords are packaged into task processes to be saved in a database, each periodic task process in the database is loaded to distributed task scheduling modules, the task processes are periodically executed, execution results are red back, abnormity information is obtained according to the fed-back execution results, and detection is completed. The distributed automatic application operation abnormity detecting method can automatically detect whether application service operation is abnormal or not, the problem that full-amount log scanning is required during each time of detection and accordingly a large number of repeated logs is produced is avoided, detecting results are accurate while the detection process can be simplified through increment scanning and matching of application logs during each time of detection. In addition, load is balanced through the multiple distributed task scheduling modules, the disaster tolerant capability of the system is greatly improved, and safe operation of the system is ensured.

The invention discloses a connected domain extraction method and device, and the method comprises the steps: converting a to-be-extracted image into a binary image; sequentially scanning all pixels inthe binary image, determining a mark value of the current pixel of the scanned pixels according to a first gray scale value of the current pixel, a mark value of a first target pixel adjacent to thecurrent pixel and a mark value of a second target pixel; taking the first mark value and the second mark value as an equivalent pair if the first and second mark values of the first target pixel, adjacent to the current pixel, and the second target pixel are not equal and are not equal to zero, and recording the mark values into an equivalent code table; determining an equivalent sequence according to the equivalent pairs in the equivalent table; and determining the pixels with the mark values being target mark values in the binary image as a connected domain of a to-be-extracted image according to each target mark value in the equivalent sequence. The invention provides a simple and efficient connected domain extraction scheme.

The invention relates to an offline license anti-counterfeiting method based on a reliable digital signature and a two-dimensional code, aiming to effectively realize high offline anti-counterfeiting security. The method comprises the following steps: extracting sensitive information in a license, performing digital signature, coding the sensitive information of the license and the digital signature thereof to generate a two-dimensional code, binding the two-dimensional code with an issued license; acquiring the two-dimensional code from the license, extracting the sensitive information and the digital signature, verifying the validity of the signature, and comparing and checking whether the sensitive information in the license is consistent with information correlated with the digital signature or not; generating an anti-counterfeiting two-dimensional code of the license by using a license anti-counterfeiting two-dimensional code generating module; extracting the sensitive information in a license to be issued, and signing the sensitive information by using the private key of a license issuer; coding the sensitive information and the signature to generate a two-dimensional code pattern; printing the two-dimensional code pattern on the license to form an anti-countering two-dimensional code on the license. By adopting the offline license anti-counterfeiting method, the license is effectively prevented from being scanned and duplicated, and the trueness of the license can be verified off line. The method is convenient to use, and high in security.

The invention discloses a method for quickly extracting star points from star images. The method includes: according to a clustering concept, adopting part of star point pixels for coarse positioning of star points so as to realize rough estimation on center coordinates of star point dispersion regions; taking the center coordinates of the star point dispersion regions as seed points to automatically screen star point pixels according to a seed point area region growing method; according to characteristics of star point energy distribution, correcting gray values of the star point pixels; adopting a centroid calculation formula for precision positioning of the star points. Since star point extraction operations are centered in local ranges of the star point dispersion regions by means of coarse positioning of the star points, start point extraction speed can be increased; correction of the gray values of the start point pixels is simple and feasible, and image filtering effects can be achieved while more algorithm time and cost are saved as compared with those of image filtering.

The invention discloses an automatic bias voltage control system and method for a double-parallel Mach-Zehnder modulator. The system comprises a light emitting module, a radio frequency driving module, the double-parallel Mach-Zehnder modulator and an automatic bias voltage control device; the double-parallel Mach-Zehnder modulator is used for receiving an optical signal and an radio frequency signal with polarization, and a outputting a bias voltage control signal by the bias voltage automatic control device and modulating the same; the bias voltage automatic control device is used for receiving a modulated optical signal. In the system, perturbation of sine waves of different frequencies is utilized; simultaneous regulation, control and locking of the two paths of sub-intensity modulators are achieved. A main modulator direct current phase modulation electrode bias point is locked at an orthogonal point by searching a perturbation first harmonic extreme point, and a sub-intensity modulator bias point is locked at any bias point by analyzing a perturbation first harmonic and average optical power ratio function. And a preset bias point is quickly locked through numerical calculation of the bias voltage correction value, a specific signal value is extracted after locking and compared with a reference value, and the locking effect is verified. Automatic real-time closed-loop control of bias voltage is realized by switching bias voltage control of different direct-current phase modulation electrodes.