1162results about How to "Increase independence" patented technology

A method of measuring Photoplethysmography (PPG) signals may comprise detecting dual wavelength illumination from a light detector so as to provide detected signals, converting the detected signals into digital signals so as to provide digital signals, reducing noises from the digital signals and increasing independency between the digital signals so as to provide preprocessed signals, subtracting the average value from the preprocessed signals so as to provide adjusted signals, obtaining whitening matrix based on covariance, eigen value, and eigen matrix obtained from the adjusted signals, and restoring data using the whitening matrix.

An autostereoscopic multi-user display comprising a sweet-spot unit which is directionally controlled by a tracking and image control device (160), wherein an illumination matrix (120) is provided with separately activatable illuminating elements (11 . . . 56), in addition to an imaging device used to alternatingly image active illuminating elements, for making expanded sweet spots (SRI / SR2) visible to various eye positions (EL1 / ERI, EL2 / ER2) of viewers observing alternating images or a stereoscopic image sequence on a transmissive image matrix (140) with the aid of directed beams (B1R . . . B5L). According to the invention, the imaging device comprises an imaging matrix (110) provided with a plurality of lens elements (111 115) whose focal length is small in order to image the active illuminating elements in an enlarged manner onto the sweet spots (SRI / SR2), and a field lens (171), which follows the imaging matrix (110), in order to keep the distances of the activated illuminating elements between adjacent beams (B1, B2,B4, B5) as constant as possible and in order to assist selection of the directions (D1. . . D5) with the illumination matrix (120) for the beams.

The drug compliance monitoring system provides a patient with a portable medication dispenser programmed with medication-taking data. The dispenser alerts the patient to take a dose of medication and gathers compliance data relating to the medication-taking data. The compliance data is accessible to a physician, or other caregiver, etc., via a network database.

The invention provides for secure end-to-end user authentication by a remote server communicating with a communication device. The communication device further communicates with an authentication device, which provides a user authentication message to the communication device for forwarding to the remote server. The authentication device comprises a data store for storing user authentication credentials. A user authentication processor performs a local authentication of a user of the authentication device in response to a user input. An authentication processor generates the authentication message if the user authentication is valid. The authentication processor implements a cryptographic function based on the user authentication credentials. A transmitter then transmits the authentication message to the at least one communication device.

A method of measuring Photoplethysmography (PPG) signals may comprise detecting dual wavelength illumination from a light detector so as to provide detected signals, converting the detected signals into digital signals so as to provide digital signals, reducing noises from the digital signals and increasing independency between the digital signals so as to provide preprocessed signals, subtracting the average value from the preprocessed signals so as to provide adjusted signals, obtaining whitening matrix based on covariance, eigen value, and eigen matrix obtained from the adjusted signals, and restoring data using the whitening matrix.

Disclosed in one general aspect is a method of evaluating the presentation of advertising content on end-user computer displays that includes sending an integrated advertisement program that includes advertising content through a computer network to end-user computers in response to requests from browsers running on the end-user computers. The integrated advertisement program is accessed on each of the end-user computers after it is received from a server on that computer. The integrated advertisement program determines a display attribute of the advertising content in the integrated advertisement program on each of the end-user computers, and reports the detected display attribute from each of the end-user computers through the computer network to a monitoring application.

An Active Ankle Foot Orthosis (AAFO) is provided where the impedance of an orthotic joint is modulated throughout the walking cycle to treat ankle foot gait pathology, such as drop foot gait. During controlled plantar flexion, a biomimetic torsional spring control is applied where orthotic joint stiffness is actively adjusted to minimize forefoot collisions with the ground. Throughout late stance, joint impedance is minimized so as not to impede powered plantar flexion movements, and during the swing phase, a torsional spring-damper (PD) control lifts the foot to provide toe clearance. To assess the clinical effects of variable-impedance control, kinetic and kinematic gait data were collected on two drop foot participants wearing the AAFO. It has been found that actively adjusting joint impedance reduces the occurrence of slap foot, allows greater powered plantar flexion, and provides for less kinematic difference during swing when compared to normals.

When a user commands execution of a computer program to commence, a loader program 2 is first started. This loader program 2 reads an encrypted version of the computer program 6 and decrypts it using a public key. This generates an executable version of the computer program 9 which is written directly to the computer memory 8. When the loader program 2 has decrypted the whole of the computer program 9 it starts execution of the computer program 9 it has written into the computer memory 8 and terminates itself or is terminated by the computer program it started. The computer program 9 written into the computer memory 8 will be written into its own memory space and will have its own execution thread. The encryption used may be public key / private key encryption.

The invention relates to a device for realizing laser welding and seam tracking and a control method thereof. The device of the invention comprises an image collecting and processing unit for collecting and processing the image data of laser welding and seam characteristics and outputting the seam position information, a motion control unit for receiving the seam position information and transmitting a motion control command to a motion shaft actuating mechanism, and an upper parameter setting and control unit for setting the parameters and being respectively connected with the image collecting and processing unit and the motion control unit in a communication mode. The method of the invention comprises the following steps: setting the parameters by utilizing the upper parameter setting and control unit; collecting and processing seam images to obtain the seam image data; caching and calibrating the seam image data, and determining the offset of a welding gun; carrying out filtering, fitting and track planning on tracking tracks by utilizing a motion controller in the motion control unit; and transmitting the result to a motion shaft driver. The invention can be suitable for various seam types and techniques and has the advantages of good generality, strong flexibility, high independence, high precision, accurate positioning, strong adaptability, and the like.

The intelligent dispatcher for group controlled lifts based on image recognizing technology includes one central dispatching computer for group controlled lifts and with one dispatching control strategy module for the optimized control of the lifts in the building, visual car sensors for acquiring the passenger flow information, and omnibearing visual sensors for acquiring the waiting passenger information, with the visual car sensors and the omnibearing visual sensors being connected to the central dispatching computer. The central computer includes also a lift passenger flow calculating module, and a running mode recognizing module to divide different lift group running modes, except its dispatching control strategy module for selecting dispatching control strategy fitting different running modes. The present invention can detect real-time passenger flow information and has precise group control dispatching.

The invention relates to apparatus, methods and computer program code for equalisation. A soft-in-soft-out (SISO) equaliser for use in a receiver for receiving data from a transmitter configured to transmit data from a plurality of transmit antennas simultaneously is described. The equaliser comprises at least one received signal input for inputting a received signal; a plurality of likelihood value inputs, one for each transmit antenna, for inputting a plurality of decoded signal likelihood values from a SISO decoder; a processor configured to determine from said plurality of signal likelihood values an estimated mean and covariance value for a signal from each of said transmit antennas; an expected signal determiner coupled to said processor to determine an expected received signal value using said mean values; a subtractor coupled to said received signal input to subtract said expected received signal value from said received signal to provide a compensated signal; a filter coupled to said subtractor to filter said compensated signal to provide a plurality of estimated transmitted signal values, one for each said transmit antenna; a filter coefficient determiner coupled to said processor to determine coefficients of said filter using said covariance values; and an output stage coupled to said filter to output a plurality of transmitted signal likelihood values, one for each said transmit antenna, for input to said SISO decoder.

An electronic bus system comprises a bus wire (BW) with at least two signal transmission wires (W1, W2) and a left and a right end, which are each defined by a terminating resistor connecting the signal transmission wires to each other. A plurality of electronic control units (ECU-ECUn) are between the two ends of the bus wire (BW) connected to the signal transmission wires (W1, W2) and are adapted, via these, to transmit and receive electric signals. The bus wire (BW) is divided into a plurality of sections (S1-Sn), which are interconnected by means of connecting circuits (CC1-CCn), and forms an annular unit. Each connecting circuit (CC1-CCn) comprises relay means, by means of which each connecting circuit, coordinated with the other connecting circuits, can connect at least one terminating resistor integrated therein, in order to define the left and / or right end of the bus wire (BW).

The invention provides a magnetic tile surface defect feature extraction and defect classification method based on machine vision. A concrete algorithm comprises a first step of building a 5-scale and 8-direction Gabor filter bank suitable for magnetic tile surface defect feature extraction, conducting filtering to an original image and obtaining a 40-width component plot, a second step of respectively extracting a gray average and a variance feature of the component plot and forming a 80-dimension feature vector, a third step of conducting dimensionality reduction to the original 80-dimension feature vector through a principal component analysis (PCA) method and an independent component analysis (ICA) method, removing relevance and redundancy and obtaining a 20-dimension feature vector, a fourth step of conducting normalization pretreatment to feature vector data, wherein the original data are normalized between zero and one, and a fifth step of adopting a grid method and a K-CV method to achieve SVM parameter optimization at first and training an SVM model using training sample data offline, wherein pretreated testing sample data are input into a support vector machine during online testing, and automatic classification and identification of defects can be achieved. The feature extraction method can effectively filter interference and prominent defects of magnetic tile surface texture, extracted features can reflect defect information accurately, data values are small, and a classifier used for classifying the defects can achieve defect identification fast and accurately online.

The invention discloses a scanning type laser vision sensing-based narrow-gap deep-groove automatic laser multilayer welding method for a thick plate, relates to a welding method, and aims to solve the problems that the conventional structured light vision sensing-based welding method can only be used for a simple shallow-groove laser weld seam tracking task and that when the conventional structured light vision sensing-based welding method is used for the narrow-gap deep-groove weld seam welding of the thick plate, a covering phenomenon is easily produced, the groove identification accuracy is lower, only real-time weld seam alignment calibration can be realized and narrow-gap deep-groove laser multilayer welding bead planning and welding cannot be realized. The method specifically comprises the following steps of: 1, selecting a groove form; 2, scanning a groove section image of a thick plate workpiece to be welded by using an image scanning unit; 3, processing the acquired groove section image by using an image algorithm to obtain weld seam image data; 4, performing fitting calculation; and 5, finishing the welding of welding beads layer by layer. The method is used for the deep-groove weld seam welding of the thick plate.

A time-based switching method and system of SONET frames that utilize a common time reference is disclosed. Time is divided into a plurality of contiguous periodic time frames. A plurality of SONET frames is associated with a time frame; the plurality of SONET frames that are contained in each of the time frames is forwarded in a pipelined manner through the network switches. The system operates with high-speed wavelength division multiplexing (WDM) links. This switching method can be used to implement an all-optical SONET switching system.

The invention discloses a time synchronization method which comprises the steps: a client sends synchronous doubleaction frame delay measurement (SDMM) messages which carry the sending time of the client; the client receives synchronous doubleaction frame delay measurement response (SDMR) messages ( SDMR) returned from a server, records the client receiving time of the SDMR messages, and extracts the client sending time of the SDMM messages from the SDMR messages, the server receiving time of the SDMM messages, and the server sending time of the SDMR messages; therefore, the client calculates nonsynchronous time difference, and adjusts the personal clock value according to the difference so as to be synchronous with the server. The invention also discloses a time synchronization system and a client, can be realized without depending on external network time synchronization protocol (NTP), has high synchronization precision, and also enhances the independence and the robustness of transporting multi-protocol label switching (T-MPLS) network functions.

A telephony server, comprising an application program executing under an operating system, communicating directly with telephony hardware to implement telephony system control, having an application programming interface including a call to an external program also executing under the operating system, the application program supporting a plurality of instances of the external programs simultaneously, each external program implementing call handling logic for at least one voice communications channel. The application program may communicate with a Web server, wherein said server proactively communicates with the user in dependence on an automated analysis of a status of a user's shopping cart, representing items of interest having an unconcluded transaction status, requesting establishment of an interactive voice communication session.

An antenna device includes a first coil antenna and a second coil antenna. The first coil antenna includes a coil conductor having a rectangular or substantially rectangular spiral shape and located on a non-magnetic insulating base member. The second coil antenna includes two coil conductors located on a non-magnetic insulating base member. The two coil conductors are disposed and wound such that loops of a magnetic field that is generated by applying a current to the two coil conductors are perpendicular or substantially perpendicular to a coil axis of the coil conductors.

The invention discloses an early warning method when an automobile closes at high speed and an early warning device. The method comprises the following steps: when the automobile drives at high speed, a navigation signal of a global navigation satellite system defines drive parameter information of the automobile, wireless net receives the drive parameter information of circumambient automobiles, the two drive parameter information are sent into a danger assessment unit, and the danger assessment unit judges whether the danger is existed to send an early warning signal. The device comprises a receiving module of the global navigation satellite system, a warless communication module, the danger assessment unit and a warning display device. The invention is the early warning method when the automobile closes at high speed and the early warning device, having simple and compact structure, low cost, convenient installation, wide application range and high safety.

Adaptive processing of an input signal is achieved by offline analysis, with inline processing comprising an adaptive filter. The method comprises passing the input signal through an adaptive time domain filter to produce an output signal. The input signal and / or output signal is used as an offline analysis signal. The analysis signal is transformed into a transform domain (eg frequency domain) to produce a transformed analysis signal. The transformed analysis signal is analysed, for example by ADRO, to produce a plurality of desired gains each corresponding to a respective transform domain sub-band. A time domain filter characteristic is synthesised to at least approach the desired gains. The adaptive filter is updated with the synthesised filter characteristic. Minimum phase adaptive filter techniques are found to possess particular benefits in this scheme.

The invention discloses an end-to-end hand-held device encryption method based on quantum cryptography and a system. The encryption method comprises following steps of storing quantum keys; initiating a call; synchronizing the quantum keys; performing synchronous confirmation; answering the call; and performing encryption communication. In the encryption communication, an MCU of a main calling end injects quantum communication keys Ksa into an encryption and decryption model; an MCU of a called end injects the quantum communication keys Ksa into the encryption and decryption model; the MCU of the called end using the quantum communication keys to encrypt the data; the encrypted data is sent out via a radio frequency module of the called end; a radio frequency module of the main calling end injects the received encrypted data into the encryption and decryption model for decryption; and after being decrypted, the data is played by a loudspeaker of the main calling end or displayed via a touch type display. The invention also discloses an end-to-end hand-held device encryption system based on quantum cryptography. The encryption method and system are highly safe, independent and easy, quick and simple to deploy.

The invention discloses a bolt assembly and disassembly manipulator capable of moving with three degrees of freedom. Moving elements of body, shoulders and arms are connected one another through guide rail sliding blocks, the movement of each element in a specified direction is limited, and the movement of a motor is transferred through a lead screw nut. A spring of a spanner head and a baffle plate are used for limiting the position of a bolt, a pressure sensor is used for measuring the axial force of the bolt, and the measured axial force is a basis for next operation. During disassembling or assembling the bolt, the pressure value detected by the pressure sensor arranged in the spanner head is used as the basis, the three moving elements are driven to ensure the precise positioning of the spanner head, and an elastic coupling for connecting the motor and a lead screw can ensure that the arms successfully realize flexible guide and positioning under the condition of certain butting error. The manipulator has the characteristics of compact structure and wide application range; and the manipulator has low positioning requirement of the bolt position so as to reduce the complexity of equipment and broaden the space of automatic application.

The invention relates to a Windows software compatible layer building structure based on Linux which designs a Windows compatible layer on the internal core of Linux to simulating operate the needed environment of Windows program and provide the needed data structure, the system object, the course and the service of the program. The compatible layer comprises a basic applied program interface, a user applied program interface, a picture device interface, an upper layer chain base and modules of a driving program, Windows small internal core, Linux compatible base and so on, these modules is developed and encoded on Windows developing environment such as VC to generate PE form file.

An improved rehabilitation and exercise machine is provided which allows a person with physical limitations, disabilities or chronic conditions to use the machine in order to rehabilitate their muscles, improve joint flexibility, and enhance cardiovascular fitness.

The invention discloses a device and a method for extending functions of a management information system through plugins. The plugin-extended management information system has a loosely-coupled function extension mechanism. The plugins are an independent part and can be developed, tested, increased and decreased independently, so that the extension and the continuous improvement on software functions can be realized; the plugins correspond to relationships between system standard functions and client personalized extension functions, and plugin interfaces are reserved in a standard function layer, so that the standard function layer turns into a plugin container; and during function extension, the plugin functions and registration are realized, so that the extended functions can be added to running logic of the system in a loose coupling manner. According to the method, on the basis of the standard management information system, the functions of the system are extended through a plugin mechanism, and loose coupling of the extended functions and the standard functions are realized, so that the flexibility and the independence of the customized development are improved.

A distributed policy linking method is provided which performs a policy based management according to a plurality of pieces of policy information distributed in a plurality of domains. A policy configuration management system is installed which manages a set of an identifier and a policy repository for each piece of policy information stored in a plurality of policy repositories. The policy information corresponding to an event issued from a resource being managed is searched from the first policy repository. If the policy information retrieved includes an identifier representing a reference to a second policy repository, an access unit to the second policy repository is retrieved from the policy configuration management system according to the identifier. Policy information is then retrieved from the second policy repository and, based on the policy information obtained, a configuration modification operation is executed on the resource being managed.

An audible distance measurer object-face discriminator cognition stimulant system device housed in a handheld shaft, walking stick, belt attachment, or portable housing. The system device will capture, detect, merge, convert, process, compute and / or synthesize signals, measurements, images, objects-faces, colors, and shapes to output assistive phrases and measurements in electronic voice, to inform and make the user knowledgeable of objects and aware of surroundings and environment directly in path of movement-direction pointed, comprising in combination strategically positioned signal receivers, transmitters or satellite, embedded distance measurer sensor, digital video camera, cellular phone, radio, electronic travel aid (ETA), electronic orientation aid (EOA), position locator device (PLD), embedded restroom facility locator sensor, and embedded vehicle presence alert system (VPAS) sensor, which will generally aid sighted and visually impaired students, teachers and students of the No Child Left Behind (NCLB) Act, and more particularly, the elderly, and visually impaired military war veterans in a Right to Personal Privacy, while simultaneously providing sighted and blind-visually impaired children with an educational toy and interactive game.

The invention relates to a high performance DMA on an embedded type processor chip. The high performance DMA comprises a data buffer used for caching the data read from an on-chip memory, the data sent to a bus interface unit, the data received from the bus interface unit, and the data written into the on-chip memory; a data big-endian and little-endian convertor; a DMA controller used for initializing a state register, a control register, an initial address register and a data size register; a DMA transmission address generating logic module used for automatically calculating the transmission address of the next data on an on-chip external memory and generating chip selection and read and write signals of the on-chip memory according to the on-chip address, and simultaneously updating a data size counter till the counter changes to zero; and a bus transmission transmitter and receiver. The high performance DMA has the advantages that the development difficulty is low, the cost of the hardware is low, the transplantation is convenient, the expansibility is flexible, the data transmission speed is high, and the performance of the processor is greatly enhanced.

The invention discloses a deep-space three-axle stable attitude directional control method, based on operation mode, belonging to an attitude control method of space aircraft, wherein said method comprises: the space aircraft with automatic navigation function, via flying computer, receives the reference directional mission and auxiliary directional mission; the flying computer, according to the aircraft track supported by navigation system and the track of target heavenly body obtained by astronomical ephemeris interpolation, finds the attitude operation process meet the demand of said mission, as the reference attitude track; and uses attitude track control rule, via the attitude interface unit, to drive the attitude executer of aircraft, to realize needed attitude. The invention can improve the automatic degree.