328results about How to "Eliminate distractions" patented technology

Multi-user detection method

InactiveUS7031671B2Eliminate distractionsSpatial transmit diversityTransmission control/equalisingMulti user detectionDirection of arrival
Multi-user detection method with elimination of interference between users, each user transmitting modulated data in the form of symbols on a transmission channel, each transmission channel (k) comprising at least one propagation path (i) and each propagation path arriving at an array of reception antennae (l) according to a direction of arrival (θi,k), the method comprising at least one sequence of steps for each user (k), each sequence comprising:
    • (a) a reception step (600k,700k,800k,800,900) decomposing each antenna signal into filtered signals (xl,i,k) issuing from the different paths (i) of the said user (k) and combining the said filtered signals by means of a first plurality of coefficients (bl,i,k, ci,k) in order to form an estimation (zk) of the signal transmitted by the user;
    • (b) a step of estimating (670k,770k,870k,870,970) the contribution ((xl,k)l=1 . . . L) of the user to the signals received by the different antennae from the said estimation of the signal transmitted and a second plurality of coefficients (ui,k, wl,i,k ) obtained from the said first plurality of coefficients;
    • (c) a step of eliminating interference (680k′,780k,880k,880,980) subtracting from the antenna signals the contribution estimated at step (b) in order to obtain cleaned antenna signals;
    • the cleaned antenna signals supplied by at least one first sequence being used as antenna signals by at least one second sequence.

Method and apparatus for remote sensing of molecular species at nanoscale utilizing a reverse photoacoustic effect

A method and apparatus for identifying a sample, involves illuminating the sample with light of varying wavelengths, transmitting an acoustic signal against the sample from one portion and receiving a resulting acoustic signal on another portion, detecting a change of phase in the acoustic signal corresponding to the light of varying wavelengths, and analyzing the change of phase in the acoustic signal for the varying wavelengths of illumination to identify the sample. The apparatus has a controlled source for illuminating the sample with light of varying wavelengths, a transmitter for transmitting an acoustic wave, a receiver for receiving the acoustic wave and converting the acoustic wave to an electronic signal, and an electronic circuit for detecting a change of phase in the acoustic wave corresponding to respective ones of the varying wavelengths and outputting the change of phase for the varying wavelengths to allow identification of the sample. The method and apparatus can be used to detect chemical composition or visual features. A transmission mode and a reflection mode of operation are disclosed. The method and apparatus can be applied at nanoscale to detect molecules in a biological sample.

Method and device for positioning interference source

The invention discloses a method and device for positioning an interference source, and the method and device provided by the invention are used for solving the problems of low accuracy and poor accuracy in positioning the interference source in the prior art. The method comprises: determining an angle of wave approach corresponding to an interference signal collected by each collecting point, and determining the path routing of the interference source passing the collecting points; determining the attribute information of each interference signal in each collecting point; and determining theposition of the interference source according to the attribute information of each interference signal in each determinate collecting point and the determined path routing of the interference source.Because the interference signals with identical attribute information are possibly the interference signals generated by the same interference source, the intersecting point of the path routing determined by the angle of wave approach corresponding to the interference signals with the identical attribute information in the embodiment of the invention serves as the position of the interference source, thereby eliminating the interference caused by the refraction of the signal by buildings and the interference generated by overlapping between different interference source signals effectively, so that the determined position of the interference source is more accurate.

Two-stage wake-up circuit applicable to electronic toll collection system

The invention discloses a two-stage wake-up circuit applicable to an electronic toll collection (ETC) system, and relates to integrated circuit technique. The two-stage wake-up circuit applicable to the ETC system comprises a primary wake-up circuit and a secondary wake-up circuit. The primary wake-up circuit is low in power consumption and can work all the time under a standby state. The secondary wake-up circuit is moderate in sensitivity, good in stability, strong in process-voltage-temperature resisting ability, capable of accurately judging that whether an input signal is an ETC wake-up signal or not, but high in power consumption, the secondary wake-up circuit is in a dormant state under the standby state, and waking-up and dormancy of the secondary wake-up circuit are controlled by the primary wake-up circuit. According to the two-stage wake-up circuit, the primary wake-up circuit and the secondary wake-up circuit are combined to be used, so that the whole ETC two-stage wake-up circuit not only has the advantage of the primary wake-up circuit of being low in power consumption, but also has the advantages of the secondary wake-up circuit of being moderate in the sensitivity, good in the stability, low in mistake wake-up rate and the like. Meanwhile, a low-power-consumption wake signal amplifying circuit with no external polarization required is adopted in the primary wake-up circuit, and therefore power consumption of the primary wake-up circuit is lowered.

Prostate multi-modal image non-rigid registration method based on mixed model

ActiveCN106204561AAvoid the cumbersome registrationEliminate distractionsImage enhancementImage analysisCT ProstateProstate
The invention discloses a prostate multi-modal image non-rigid registration method based on a mixed model, and mainly solves the problem in the prior art that registration of prostate CT and MRI images is not good. The method is realized by steps of 1) inputting prostate CT and MRI images and segmenting the prostate CT and MRI images to obtain targets respectively; 2) taking filtered prostate CT and MRI images as a reference image and a floating image respectively, and subjecting the two images to pyramid multi resolving; 3) subjecting the floating image to offset and layer-by-layer iteration to obtain a crude registration image; 4) dividing the reference image and the crude registration image in a control point mesh manner, moving control points of the crude registration image, and obtaining a post-transformation image according to displacement of the control points; 5) continuously carrying out iteration until the similarity between the post-transformation image and the reference image is maximal, so as to obtain final displacement; and 6) obtaining a registration image according to the final displacement. The invention improves the registration precision between complex deformation and a multi-mode image, and can be used for medical CT and MRI image processing.

Ship-borne aircraft capturing and arresting device

The invention discloses a ship-borne aircraft capturing and arresting device. The ship-borne capturing and arresting device comprises a ship-borne aircraft landing area, a ship-borne aircraft arresting device, a controller and a ship-borne aircraft capturing device, wherein the ship-borne aircraft arresting device comprises more than two arresting systems; each arresting system comprises arresting hooks, arresting cables and buffer devices; the arresting hooks are hinged with a torque arm of a ship-borne aircraft landing frame; one end of each arresting cable is connected with a group of buffer devices, and the other end of the arresting cable moves around a group of lift blocks sequentially and then is connected with another group of buffer devices; a group of catapults are arranged between two adjacent lift blocks in the group of lift blocks; the ship-borne aircraft capturing device comprises a sensor; and the controller automatically controls the actions of the catapults according to information fed back by the sensor. The device can ensure that the aerodynamic force of ship-borne aircrafts is not influenced by the arresting hooks when the ship-borne aircraft flies, the phenomenon that the arresting hooks are bounced and oscillated when the ship-borne aircrafts land on a ship is prevent, the landing success rate of the ship-borne aircrafts is improved, the structures of the arresting systems are simplified, and the weight of the arresting systems is reduced.

Method and device for detecting and processing dynamic image and display terminal

The invention is applied to the field of image processing and provides a method and a device for detecting and processing dynamic image and a display terminal. According to the embodiment of the invention, a characteristic value corresponding to a reference object is obtained by carrying out edge extraction and characteristic extraction on the reference object; judgment conditions are set according to the characteristic value corresponding to the reference object; the edge extraction and the characteristic extraction are carried out on all moving objects detected by the dynamic image to obtain the characteristic values corresponding to the moving objects; the characteristic values corresponding to the moving objects are compared with the judgment conditions; the moving objects according with the judgment conditions are considered as interested objects to be retained; and the moving objects which do not accord with the judgment conditions are considered as interference objects to be filtered. Therefore, the interference caused by non-interested moving objects in front of or behind an interested moving object can be eliminated, the calculated amount of data in the image recognition process is greatly reduced and the accurate rate of image recognition is effectively improved.

Ion chromatography circulating column switching analysis system and detection method thereof

The invention relates to an ion chromatography circulating column switching system, especially relates to an ion chromatography analysis system for on-line cycling separation and detection of high-concentration base ions having near chromatographic retention characters and trace irons requiring detection. The invention discloses an ion chromatography circulating column switching analysis system. The system is characterized by: converting an elutriant into water and removing eluting power of the elutriant after flowing through a suppressor; carrying out on-line cycling elimination for the high-concentration base ions and carrying out cycling analysis for the irons requiring detection through switching valves. The switching analysis system provided by the present invention comprises: a pump, a six-way valve, a ten-way valve, a protection column, a analysis column, a enrichment column, the suppressor, a conductivity detector, a sample loop, a sample injector and a waste liquid bottle. The switching analysis system provided by the present invention can be applicable for elimination of the high-concentration base ions during the ion chromatography separation and detection process for a series of irons having the near chromatographic retention characters, and has very high practical value.
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products