124results about How to "Improve scan performance" patented technology

Systems and methods for microscope slide scanning using multiple sensor arrays that receive imagery data from a single optical axis are provided. A single, high quality, easily obtained microscope objective lens is used to project an image onto two or more sensor arrays. The sensor arrays can be linear or two dimensional and imaging takes place along a single optical axis. Simultaneous sensor acquisition and parallel data processing reduce the image acquisition time by a factor of N, where N represents the number of sensors employed.

The embodiment provides a method and a device for detecting viruses and gateway equipment. The method comprises the steps of: obtaining attribute information to be detected for loading the application protocol of a document to be detected, and searching in a current attribute information library according to the attribute information to be detected, wherein the attribute information library comprises a suspicious attribute information library or a credible attribute information library; judging whether the document to be detected is a virus document when searching suspicious attribute information which is the same with the attribute information to be detected in the suspicious attribute information library; and judging whether the document to be detected is a safe document when searching credible attribute information which is the same with the attribute information to be detected in the credible attribute information library. The document to be detected is judged to be a virus document or not by searching in the current suspicious attribute information library according to the attribute information to be detected of the application protocol, which avoids scanning viruses to each document to be detected according to a virus library, improves the scanning performance of a gateway anti-virus method, and lowers the cost.

The invention discloses an ultra-low profile strong coupling ultra-wideband phased array antenna based on a magnetic medium type artificial magnetic conductor structure. The antenna comprises a radiation unit layer printed on an ultra-thin medium layer and an artificial magnetic conductor reflecting plate. The tail ends of dipole antenna units in the radiation unit layer are respectively extendedto the tail ends of adjacent dipole antenna units to form an interdigital capacitor capable of enhancing the capacitive coupling amount between the units. The antenna can achieve two-dimensional wide-angle scanning with + / -60 degrees in a 3.3-times frequency interval range, an artificial magnetic conductor structure by taking the magnetic medium as a medium substrate is loaded, and the height of the section of the antenna is only about 0.03 times of the high-frequency wavelength to meet the requirements of ultra-wideband wide-angle scanning and ultra-low section of the antenna. The ultra-low profile strong coupling ultra-wideband phased array antenna is especially suitable for an application platform requiring the ultra-wide working band and meeting the ultra-low section requirements of the antenna.

The invention relates to a DLP three-dimensional printer and a three-dimensional printing method based on a digital light processing technology and a three-dimensional scan technology, wherein the DLP three-dimensional printer comprises a frame, a control unit, a scanning and projecting unit, a scanning molding carrying unit as well as a molding groove mounted on the frame, wherein the molding groove is used for containing a light-cured resin solution; the scanning and projecting unit comprises a scanning light source, a molding light source, a digital micro-lens wafer and a scanning reflective light receiver; the scanning molding carrying unit is used for carrying a scanned object and molding a three-dimensional object in the molding groove; the digital micro-lens wafer is controlled by the control unit to process light generated by the scanning light source and the molding light source so as to correspondingly form scanning light for three-dimensional scanning on the object or molding light for curing the light-cured resin solution in the molding groove. According to the DLP three-dimensional printer, the processing capability of the digital micro-lens wafer on light can be fully utilized, so that the shape and the size of facula of the scanning light beam are no longer limited by the scanning light source.

The disclosure provides noncontact type book scanning equipment. The noncontact type book scanning equipment comprises a depth information acquisition component which acquires depth information of a book to be scanned; a color information acquisition component which acquires color information of the book to be scanned; and a server terminal which receives the depth information acquired by the depth information acquisition component and the color information acquired by the color information acquisition component. The server terminal comprises a three-dimensional modeling module which is used for constructing a three-dimensional mesh model of the book to be scanned based on the received depth information; and a two-dimensional flattening module which is used for recovering a two-dimensional flat image of the book to be scanned based on the three-dimensional mesh model of the book to be scanned and the received color information. The scanning effect can be enhanced, reduction of image resolution can be improved and user reading experience can be improved by the noncontact type book scanning equipment.

The invention relates to phased-array antenna equipment, a wide-angle impedance matching device of the phased-array antenna equipment and a phased-array antenna system. The phased-array antenna equipment comprises an antenna device array and the wide-angle impedance matching device arranged above the antenna device array. The wide-angle impedance matching device comprises a first substrate, a plurality of horizontal conductive geometrical structures and a plurality of vertical conductive geometrical structures. The horizontal conductive geometrical structures are horizontally arranged on one surface of the first substrate, the vertical conductive geometrical structures are arranged above or below the horizontal conductive geometrical structures and are arrayed to be perpendicular to the first substrate roughly. The phased-array antenna equipment and the wide-angle impedance matching device of the phased-array antenna equipment have the following advantages that the influence of scanning blind points on a required frequency band is reduced, wide-band and wide-angle phased array scanning impedance matching is achieved, hence, the wide-angle scanning gain is improved, the scanning coverage is expanded, and the antenna scanning performance is improved.

The invention a coordinate measuring machine, a probing system and a method for compensating a force at a probe element. A probing unit (16) comprises an actuator (21) which is arranged and designed in such manner that a force is applicable to the probe element with respect to at least one actuating direction in variable and defined manner, the force depending on an applied actuating signal. Movement information about an expected movement of the probing unit (16) is received, the movement information provides information about an expected displacement behaviour of the probe element relative to the probing unit due to induced forces emerging by moving the probing unit (16). At least one particular expected displacement behaviour of the probe element is derived for at least one particular moving point based on the movement information and the actuating signal is determined for the at least one particular moving point based on the at least one particular expected displacement behaviour, the actuating signal provides applying a defined counterforce to the probe element by the actuator (21) as to the expected displacement behaviour at the particular moving point.

Systems and methods for using a multimodal handheld reader are described. The reader can be used to read non electronic labels, passive RFID tags using backscatter modulation techniques and battery based active RFID tags using a single handheld. The reader deploys a multiplexed antenna design and thereby contains a method to read a group of passive RFID tags and at the same time the reader can isolate a single passive RFID tag from amongst a group of passive RFID tags within close proximity. All such passive RFID tags use backscatter modulation techniques and are in the readers own RF zone.

A fiber scanning system can have optimized performance by substantially matching the natural frequencies of the fiber scanning system's actuator and fiber optic scanning element. By matching the natural frequencies, the fiber scanning system can increase the maximum distance that the tip of the fiber optic scanning element may be driven relative to a resting position. Such an effect may be produced because matching the natural frequencies of the fiber scanner allows for larger amplitudes to be achieved. It should be noted that the natural frequency of the scanning system can be selected to avoid excitation frequencies that could destabilize the system. In this way, the system as a whole may act as a tuned mass damper or a tuned resonance structure, thereby improving scan performance while maintaining a stable scanning system.

The invention discloses a method and a device for a mobile terminal to scan a two-dimension code, and belongs to the field of mobile communication. The method comprises the steps of acquiring the pressure value of a mobile terminal screen pressure sensor, adjusting the scanning range of a scanning frame according to the pressure value, displaying the scanning frame after adjustment, and acquiring a two-dimension code to be identified in the scanning range and analyzing the two-dimension code to be identified. By adopting the method and the device of the invention, a mobile terminal can scan a two-dimension code or barcode quickly and accurately, and the scanning speed and effect are greatly enhanced. The method and the device are more user-friendly.

The invention relates to a resonant scanning mirror, a scanning method, a scanning angle measurement method and a resonant scanning mirror processing method. The resonant scanning mirror comprises a steel sheet, a magnet, a driving coil and an angle measurement coil, wherein the steel sheet comprises a first torsion shaft and an inner frame connected with the first torsion shaft, the inner frame is provided with a smooth surface suitable for beam reflection, the magnet is suitable for generating the single-directed magnetic field at the level of the steel sheet, the driving coil is arranged inthe inner frame of the steel sheet and is suitable for bearing the force in the magnetic field generated by the magnet to drive the inner frame to rotate when a driving current is inputted, and the angle measurement coil is arranged in the inner frame of the steel sheet and is suitable for measuring a scanning angle of the inner frame. The resonant scanning mirror is advantaged in that on one hand, large-aperture and large-angle scanning can be realized with relatively low cost, on the other hand, a piezoresistive or capacitance measurement angle measurement realization method in the MEMS process is simplified, the process is simple, and cost is low.

The invention claimed is a method and apparatus to allow for scanning of both paper documents and thicker media such as credit or identification cards utilizing the same piece of scanner hardware. The inventive apparatus provides a depressible card reader slot located in the center of the horizontal axis of the sheet feed, and accompanying cantilever system for providing appropriate thickness of insert area for the particular media. A software implementation facilitates an automatic scan of either media inserted. The inventive method and apparatus is unique to the prior art in that it allows both media to be scanned utilizing the same piece of hardware, which offers both ease of use and value to the consumer.

The invention discloses an array plane layout method for a space-borne SAR (Synthetic Aperture Radar) phased-array antenna and relates to a radar antenna technology. The array plane layout method comprises the following steps of: under the condition that the number of azimuth T / R (Transmit / Receive) assemblies (or phase shifters) of the phased-array antenna is not changed, dividing an array plane of the antenna into a plurality of unequal subarrays along the range direction; staggering along the azimuth direction of the antenna by using each subarray as the unit, wherein a staggering distance is about one second of a spacing of each two adjacent T / R assemblies in the range direction; and discretizing single big-peak scanning grating lobes of a regular rectangular lattice structure into a plurality of distributed small-peak grating lobes, so that the peaks of the scanning grating lobes in the azimuth direction are greatly reduced and the influence of the big-peak grating lobes on a radar system is reduced. The larger the number of the subarrays which have different spacings and are formed by dividing the antenna in the range distance is and the more the types of spacings between the subarrays are, the better the effect of discretizing the big-peak grating lobes is, however, the complexity of layout of a feed network of the phased-array antenna, the design of an antenna frame and the like are also increased. An array plane layout scheme suitable for the engineering application is obtained by comprehensively considering the complexity of the layout of the feed network and the design of the antenna frame and the effect of discretizing the scanning grating lobes in the azimuth direction.

The invention discloses a method for simultaneously determining multiple plant growth regulators in exported vegetables. The method comprises the following steps: extraction, purification, concentration, ultrahigh-performance liquid chromatography-triple quadrupole / composite linear ion hydrazine mass spectrometer (UHPLC-QTRAP) determination and the like. The method can simultaneously determine the 17 plant growth regulators, including gibberellin, indolyl-3-butyric acid, p-chlorophenoxyacetic acid, abamectin, diethyl aminoethyl hexanoate, atrazine, simazine, 6-benzyl aminopurine, 2,4-dichlorphenoxyacetic acid, forchlorfenuron, mepiquat chloride, chlormequat chloride, paclobutrazol, uniconazole, abscisic acid, thidiazuron and p-fluorophenoxyacetic acid. The method disclosed by the invention has the advantages of simple steps, short time consumption, high accuracy and high precision.

The invention discloses a wireless network scanning method and a wireless network scanning system. The wireless network scanning method is applied to an electronic device, and comprises the following steps of: receiving an operation; setting at least one waiting time length corresponding to a wireless network scanning program from a preset time length to a given time length correspondingly to the operation; executing the wireless network scanning program according to the given time length; and when the wireless network scanning program is finished, setting the waiting time length from the given time length back to the preset time length. By the method and the system, access point scanning in a wireless network can be additionally managed, thereby improving the wireless network scanning efficiency and simultaneously achieving the effect of power saving under the condition of not modifying a module or hardware.

The invention belongs to the technical field of environmental monitoring and in particular relates to an ultra performance liquid chromatography (UPLC)-triple quadrupole / composite linear ion trap mass spectrometry detection method of triphenylmethanes and metabolites of triphenylmethanes in water bodies. Currently, the detection methods which can be used for simultaneously detecting five substances, including MG, LMG, CV, LCV and BG, and have detection limits up to ng level are not available yet. The method has the beneficial effects that a device adopts composite mass spectra, is an advanced novel mass spectrograph and adopts quadrupole / linear ion trap technology, thus greatly improving the MS / MS scanning capacity; meanwhile, the advanced novel mass spectrograph is connected with an UPLC, so that a simple, quick and sensitive method can be established; five triphenylmethanes and metabolites thereof in water bodies are simultaneously determined, thus providing a reliable detection method for further analyzing and evaluating the pollution conditions in the ecological environments.

Embodiments of the present application provide a data scanning method and apparatus. The method comprises: scanning Key-Value data stored at a first level of an LSM tree; for each storage block at each level excluding the first level: acquiring a Key set, wherein the Key set comprises all scanned Keys; acquiring a Key value range of the storage block; acquiring a Key intersection obtained according to the Key set and the Key value range; acquiring a scanning accuracy of the storage block according to the number of Keys in the Key set stored in a Bloom filter established for the storage block; when the scanning accuracy of the storage block is less than a preset scanning accuracy, scanning the Key-Value data stored in the storage block; and otherwise, skipping scanning the Key-Value data stored in the storage block. The data scanning method and apparatus provided by the embodiments of the present application reserve I / O resources and improve scanning performance.

A focus adjusting device (50) for an image sensor (1) is provided for ensuring precise focusing of the image sensor. The focus adjusting device includes a contact element (51) in direct contact with the bottom of a scanner cover plate, a focus varying element (53) engaging with the contact element, and a focus fine adjusting element (55) movably mounted on a housing of the image sensor. The focus varying element and the contact element are driven to correspondingly move vertically together with the vertical movement of the focus fine adjusting element, whereby the distance between an upper surface of the housing and the bottom of the cover plate is thus changed for precise focusing.

The invention relates to a large breadth scanning color aberration correcting method based on a complex frequency spectrum chrominance principle, and provides a method for effectively correcting large breadth scanning color aberration. The large breadth scanning color aberration correcting method based on the complex frequency spectrum chrominance principle comprises the steps of firstly, obtaining spectral reflectance of color lumps of a reflecting type scanner correcting guide list through measurement, calculating complex frequency spectrum HLS values of all the color lumps, establishing a corresponding relation of a color value RGB and the complex frequency spectrum HLS of the same color lump, scanning the reflecting type scanner correcting guide list by using a large breadth scanner, obtaining the actual scanning color information R'G'B' of each color lump of the reflecting type scanner correcting guide list through the large breadth scanner, calculating complex frequency spectrum color characteristic values H'L'S' according to the corresponding relations, correcting colors according to the differences between the complex frequency spectrum values HLS and the complex frequency spectrum color characteristic values H'L'S' to obtain the complex frequency spectrum H''L''S'' values after the correction of the large breadth scanner, and obtaining color values R''G''B'' corrected and output through the complex frequency spectrum H''L''S'' are corrected, namely, the color values R''G''B'' are the color values of large breadth scanning colors.

The invention discloses a manual oblique nozzle fillet weld phased array scanning device capable of performing bidirectional scanning. The manual oblique nozzle fillet weld phased array scanning device capable of performing bidirectional scanning comprises a locking mechanism, an adjusting mechanism, a probe frame sliding bar assembly and a nozzle probe arm; the locking mechanism comprises a chainlink assembly and a locking assembly; the adjusting mechanism comprises a profile rod, an adjusting arm, an adjusting sliding block, a fastening screw and an adjusting knob; the probe frame sliding bar assembly comprises a probe frame, a sliding block installation plate, a vertical sliding block, a tension spring, a connection base, an arc sliding rail, a sliding rail leaning frame, a wedge blockclamp, a wedge block and an ultrasonic phased array generator; the nozzle probe arm comprises a left torsion spring probe arm, a right torsion spring probe arm, a nozzle wedge block clamp, a nozzle wedge block, the ultrasonic phased array generator and a nozzle displacement sensor; the wedge block is adjusted in the three-dimensional direction; therefore, the stability is good; the detection precision is high; the use range of multiple pipe diameters is satisfied by increasing and decreasing a chain link; the nozzle wedge block is arranged to simultaneously scan a welding line in the straightpipe direction and the nozzle direction together with the wedge block on a straight pipe wall; the scanning angle is enlarged; and the scanning effect is improved.

The invention relates to a method for filtering the conical defects of a chip by regulating the parameters of a defect inspection device, and the method comprises the following steps: step A, three values of the system parameters Lo of a scanning device machine are adjusted to be between the system default values and 0 under the situation of the given polarization combination; step B, different regions are selected under the full chip observation mode of the scanning device machine, the region in the mapping function is selected as a logic region, then the histogram function is selected to obtain a distribution diagram of scattering dynamic received intensities of three receivers in the region; step C, three values of the transverse coordinates of the corresponding points which start to increase at the left sides of three peak forms on the distribution diagram are determined on the distribution diagram of the scattering dynamic received intensities of the three receivers in the region, that is the three values of the Lo parameters; step D, the three Lo parameters obtained in the step C are used as the Lo parameter values for carrying out the scanning. The method can not only ensure the conical defects of the open region to be successfully filtered, but also ensure the killer defects of the logic region not to be missed by the inspection.

The invention discloses platform moving type wide industrial scanning equipment and a scanning method. The equipment comprises a frame, an upright post, a platform, a cantilever, a line-scan digital camera and a control device, wherein universal truckles are arranged at the bottom of the frame; the upright post is fixed on the frame; the platform is connected to the frame through a first sliding rail and is driven to carry out linear motion along the horizontal direction of the frame by a first motor; the cantilever is connected to the upright post through a first sliding rod and is driven to carry out linear motion along the vertical direction of the upright post by a second motor; the line-scan digital camera is connected to the cantilever through a second sliding rail and is driven to carry out linear motion along the horizontal direction of the cantilever by a third motor and carry out rotation motion along a center axis of a photosensitive element of the line-scan digital camera by a rotary motor, and the line-scan digital camera, the first motor, the second motor, the third motor and the rotary motor are respectively connected to the control device. According to the equipment and the method, the surface patterns with high precision and high color rendition on the surface of a scanned wide object can be flexibly obtained from the different perspectives.

The invention discloses a method and device for scanning a plug-in and determining the rule scheduling sequence in the plug-in. The method includes: during the determining stage of the rule scheduling sequence in the plug-in, determining the resource consumption of each independent rule in rule channels and the hit rate of loophole scanning of the rule channels; determining the scheduling sequence of each rule channel according to the resource consumption and the hit rate; during a scanning stage, sequentially performing loophole scanning according to the scheduling sequence of each rule channel. The method has the advantages that the plug-in is granulated according to the independent rules, the minimum unit of scanning scheduling is granulated into the rule channels, the reasonable rule channel scheduling sequence is determined automatically, plug-in scanning speed and efficiency are increased, computer resources are saved at the same time, and the overall scanning performance of a loophole scanner is increased.

Systems, devices and methods are described herein that are configured for use in the monitoring and detecting of chemical reactions, such as, for example, the monitoring and detection of Polymerase chain reactions (PCR). For example, the systems and devices described herein can be used for accelerated real-time PCR. A fully integrated PCR system is provided that includes a touch screen user interface, eliminating the need for additional computers, keyboards, and related devices. The PCR systems described herein can be network enabled to provide communications between one or more PCR monitoring and detection devices and a central monitoring station. A disposable sample holding device can be placed in the PCR device for testing in an upright vertical orientation, providing improved optical scanning capabilities and rapid heating and cooling capabilities.

The invention discloses a buffer overflow vulnerability automatic utilization method based on path analysis. The method comprises the following steps: S1, acquiring program information of a target binary program; S2, traversing the target binary program according to the obtained program information by using a symbol execution method, searching the software vulnerability existing in the program, and obtaining the path information of the searched software vulnerability; S3, acquiring the environmental information of current system, and according to the acquired environmental information and theprogram information, generating the required utilization protocol to bypass the system protection; S4, according to the path information of the software vulnerability and the generated exploit specification, obtaining a solution, and finally generating the needed exploit input. The method has the advantages of simple realization, automatic searching of software vulnerability and automatic generation of vulnerability utilization, automatic bypass of system protection, high automation degree and execution efficiency.

The invention discloses an English training auxiliary system, which comprises a base; a sitting posture correction mechanism, a multi-mode learning mechanism, a stabilizing mechanism, a distance adjusting mechanism, a book pressing mechanism and a scanning mechanism are sequentially arranged on the base; the sitting posture correcting mechanism comprises a first sliding groove, a first telescopicrod, a sitting plate, a correcting backrest, an inclination sensor, an adjusting rod, a turbine, a first rotating shaft, a worm, a first motor, a first bevel gear and a second bevel gear. A first sliding groove is formed in one end of the upper surface of the base in an embedded mode. The interior of the first sliding groove is slidably connected with a distance adjusting mechanism. By arranging the sitting posture correcting mechanism, the sitting posture correcting mechanism can be automatically and scientifically adjusted, so that a child is in the optimal sitting posture, and the situationthat when the preprimary children carry out English training, due to the fact that the body is in the development stage, the poor sitting posture during English training easily affects the body development of the children is avoided; and thus the cervical vertebra and lumbar vertebra malformation development is avoided.

A millimeter wave polarimetric detection radiometer at least includes four layers, which are a cover layer, a first metal layer, a dielectric substrate and a second metal layer from top to bottom. Themillimeter wave polarimetric detection radiometer is characterized in that an upper row of first polarized radiation units and a lower row of second polarized radiation units are arranged on the first metal layer, and the first polarized radiation units and the second polarized radiation units are periodically and regularly arranged. The advantages of the traditional linear polarization and circular polarization in the radiation system are taken into account. The optimal performances of circularly polarized and linearly polarized waves are brought into play through reasonable design, and thecircularly polarized and linearly polarized waves are creatively arranged on the same substrate integrated waveguide. Perfect scanning performance is achieved within the millimeter wave band. The problem that the traditional radiation array needs complex components and a complex structure is solved. The side lobe can be suppressed and the side lobe current can be contained without affecting the directionality. The millimeter wave polarimetric detection radiometer has a good application prospect.