34results about "Digital function type" patented technology

A parallel fixed-point square root and reciprocal square root computation uses the same coefficient tables as the floating point square root and reciprocal square root computation by converting the fixed-point numbers into a floating-point structure with a leading implicit 1. The value of a number X is stored as two fixed-point numbers. In one embodiment, the fixed-point numbers are converted to the special floating-point structure using a leading zero detector and a shifter. Following the square root computation or the reciprocal square root computation, the floating point result is shifted back into the two-entry fixed-point format. The shift count is determined by the number of leaded zeros detected during the conversion from fixed-point to floating-point format.

A device with at least one channel for measuring high dynamic range, radio frequency (RF) power levels over broad-ranging duty cycles includes a power sensor circuit comprising at least one logarithmic amplifier; at least one directional RF coupler electrically connected to the at least one power sensor; at least one RF attenuator electrically connected to the at least one RF coupler; and at least one sampling circuit electrically connected to the at least one RF attenuator and the at least one RF coupler. The at least one sampling circuit performs analog-to-digital conversion of electrical signals received to provide digitals signals for measuring the RF power level in the at least one channel.

Techniques for evaluating a second version of software. Embodiments selectively route incoming requests to software instances within a plurality of baseline instances and a plurality of canary instances, where the baseline instances run a first software version and the canary instances run the second software version. The software instances are monitored to collect performance data for a plurality of performance metrics. Embodiments calculate aggregate baseline performance metrics, where each of the aggregate baseline performance metrics is calculated based on the collected performance data for the plurality of baseline instances. For each of the performance metrics and canary instances, embodiments calculate a relative performance value that measures the collected performance data for the respective canary instance and for the respective performance metric, relative to the corresponding aggregate baseline performance metric. A final measure of performance is calculated for the second version of software, based on the relative performance values.

An embodiment of the present invention relates to the technical field of display. Particularly, there is provided a flexible screen and a bend identifying method thereof, as well as a flexible display apparatus. The flexible screen comprises a first flexible substrate and a second flexible substrate which are oppositely disposed; the flexible screen further comprises a first electrode which is disposed on one side close to the second flexible substrate of the first flexible substrate and a second electrode which is disposed on one side close to the first flexible substrate of the second flexible substrate, as well as a detection system connected with the first electrode or the second electrode; wherein the first electrode and the second electrode are configured to be in positional correspondence; in a case where the flexible screen is bent, the first electrode and the second electrode are electrically connected. The present invention is used for fabrication of a display apparatus. The present invention may be used for determining whether the flexible screen is excessively bent or flexed.

A method and device for establishing a protocol relating to a measurement sequence for controlling a magnetic resonance tomography system, the measurement sequence is segmented into various groups of partial modules that are similar to one another. A partial module that potentially generates the greatest physiological exposure for a patient is identified. Furthermore, a test is carried out by means of a model function to determine whether physiological limiting values are being observed in the measurement sequence for the partial module. If the physiological limiting values are not being observed, parameters influencing the measurement sequence are modified and the preceding test step is repeated.

A capacitive sensing array device of an electronic apparatus includes sensing electrodes, a shielding conductor layer, a coupling signal source, a constant voltage source and switch modules. The coupling signal source provides a coupling signal coupled to an object. The constant voltage source provides a constant voltage to the shielding conductor layer to form a stable vertical parasitic capacitor between the shielding conductor layer and each sensing electrode. Each switch module is electrically connected to the constant voltage source via the corresponding sensing electrode. When one sensing electrode is selected to perform sensing, the corresponding switch module is configured as an open-circuited state such that the selected sensing electrode is disconnected from the constant voltage source, while the other sensing electrodes are electrically connected to the constant voltage source to form a stable horizontal parasitic capacitor between the selected sensing electrode and the other sensing electrodes.

A capacitance based tactile array sensor is disclosed that provides for close resolution of sensing pixels by using insulated conductors as electrodes, and allows for eliminating the need for a joint or connection interface near periphery of the sensor array. Optional aspects of the invention include provision for allowing use of stretchable conductors, reduction of the burden of number of connections at one layer of conductors in the sensor, providing for differential sensing resolutions at different areas of sensing, and modularity in configuration allowing replacement of a defective sensor pixel in the array. The tactile array sensor may be integrated with surface of a robotic hand's finger, palm, or any other surface of a device that requires multi-point sensing of external contacts. The capacitance information is processed for useful display or control of systems based on the contact feedback.

The present invention relates to an electronic sensor unit, particularly an electronic sensor unit with a lighting device for marking a target region (Y) in order to identify a detection region (X) of said sensor unit. Corresponding sensor units according to the prior art consist of a plurality of individual components, the assembly of which is laborious and error-prone. The electronic motor vehicle sensor unit (1) according to the invention comprises a housing (2), a control and evaluation device (3) arranged in the housing (2), and at least one capacitive sensor electrode (4a, 4b) with a detection region (X, X'), wherein the capacitive sensor electrode (4a, 4b) is coupled to the control and evaluation device (3) and is arranged in the housing (2). The sensor unit further comprises a lighting device (5a) with an illuminant (5c) that can emit an optical signal, wherein the lighting device (5a) is coupled to the control and evaluation device (3), and a target region (Y) identifying the detection region (X) can be marked outside the housing with the lighting device (5a). The housing (2), the control and evaluation device (3), the at least one capacitive sensor electrode (4a, 4b) and the lighting device (5a) form an integrated assembly.

To provide a magnetic sensor circuit which does not output spike-like voltage errors to a signal processing circuit. A magnetic sensor circuit is provided which is configured so as to output an output signal to a signal processing circuit through a plurality of hall elements driven by a first switch circuit and a second switch circuit controlled by a second control circuit and in which the first switch circuit controls timings at which spikes occur in the output signal of each of the hall elements in such a manner that the timings are not the same, and the second switch circuit selects and outputs an output signal having a period of a timing free of the occurrence of a spike.

A DC level detection circuit between high speed signal line connecting ports and a system using the same in optical communications is disclosed. Corresponding ports of a high speed signal line each have an additional resistor, where one additional resistor has a resistance significantly greater than that of the other resistor. The smaller resistor is grounded. The larger resistor is connected to a DC voltage source, a low pass filter, and a signal detection port. Thus, when both ports of the high speed signal line are connected, a status of the electrical level detected at the signal detection port changes. The circuit detects the connection state of the high speed signal line without negative effects on signal transmission and is applicable to various circuits, especially plug-in modules and corresponding slots. Thus, the circuit further enables signal port multifunctionality, increases module installation accuracy, and provides higher compatibility for plug-in modules.

The invention discloses a high-dimensional quiescent voltage stability boundary calculation method based on a multi-dimensional holomorphic embedding method, belonging to the field of power system analysis. The method comprises the following steps of: solving a power flow equation of a power system by using the multi-dimensional holomorphic embedding method containing a plurality of physical mapping factors so as to obtain an analytical expression in a multivariable power series form of node voltage; then, based on the multi-dimensional Cauchy-Hadamard theorem, deriving an analytical expression of a high-dimensional static voltage stability boundary and calculating the high-dimensional static voltage stability boundary. According to the method, the high-dimensional static voltage stabilityboundary is rapidly and accurately calculated in an analysis form by applying the multi-dimensional holomorphic embedding method containing the plurality of physical mapping factors and cooperativelyusing the multi-dimensional Cauchy-Hadamard theorem.

The invention discloses a direct-current level detection circuit between high-speed signal line ports, a system comprising the circuit and a manufacturing method and an application method thereof. Each port corresponding to a high-speed signal line contains a resistor, and resistance value of one resistor is higher than that of the other one. The resistor having a lower resistance value is connected to the ground. The resistor having a larger resistance value is connected to a direct-current voltage source, a lowpass filter and a signal detection port, and therefore, both ports of the high-speed signal line are in a connected state. Change of the level state will be detected by the signal detection ports. Detection of the high-speed signal line in a connected state is realized in the circuit, which does not affect transmission of high-speed signal and is suitable for various circuits, particularly for pluggable modules and corresponding slots. Therefore, multiplex functions of the signal ports are realized by the circuit, accuracy degree of module installation is increased, and compatibility of pluggable modules is improved.

A device with at least one channel for measuring high dynamic range, radio frequency (RF) power levels over broad-ranging duty cycles includes a power sensor circuit comprising at least one logarithmic amplifier; at least one directional RF coupler electrically connected to the at least one power sensor; at least one RF attenuator electrically connected to the at least one RF coupler; and at least one sampling circuit electrically connected to the at least one RF attenuator and the at least one RF coupler. The at least one sampling circuit performs analog-to-digital conversion of electrical signals received to provide digitals signals for measuring the RF power level in the at least one channel.

A system, method, and apparatus are described for monitoring the operation of a three phase system. In some embodiments, one or more vectors may be generated. The vectors may be indicative of an output of the three phase system. In some embodiments, one or more of the vectors may correspond to a difference of two of the three phases of the three phase system. A gain associated with a third of the vectors may be different from a gain associated with each of the first and the second vectors. The gain associated with the third vector may be maximized. The three vectors may be combined with hardware or software. In some embodiments, frequency content associated with the three phase system may be filtered with hardware or software. For example, filtering may be used to remove frequencies outside of a specified frequency range of interest.

A system, method, and apparatus are described for monitoring the operation of a three phase system. In some embodiments, one or more vectors may be generated. The vectors may be indicative of an output of the three phase system. In some embodiments, one or more of the vectors may correspond to a difference of two of the three phases of the three phase system. A gain associated with a third of the vectors may be different from a gain associated with each of the first and the second vectors. The gain associated with the third vector may be maximized. The three vectors may be combined with hardware or software. In some embodiments, frequency content associated with the three phase system may be filtered with hardware or software. For example, filtering may be used to remove frequencies outside of a specified frequency range of interest.

The invention detects foreign objects FO near a primary coil 100 of an induction charger. A sensors 111 of a sensor array 110 output sensing signals in response to magnetically coupling the alternating magnetic field 103 produced by the primary coil. A controller 165 connected to each sensor 111 scans the sensing signals and determines whether there is a foreign object perturbing the magnetic field 103 near a sensor. The magnetic field has a spatial distribution that varies by location across the primary coil area. Each sensor has a magnetic field sensing sensitivity that is inversely proportional to the magnetic intensity of the magnetic field produced by the primary coil at a location of the sensor, to reduce the collective dynamic range of the signals, thereby contributing to maintaining a high accuracy in signal sampling. A reference sensor coil 155 compensates for magnetic field drift of the primary coil.

The present invention provides an LCD detecting system including timing control (TCON) IC. The TCON IC includes a process unit to receive lock signal, a detecting control unit connected with the process unit, and a point-to-point transmission unit connected with the detecting control unit. The detecting control unit detects mode of the point-to-point transmission unit and sends a control signal to the process unit based on a detecting result. The TCON IC transmits timing control signal based on the control signal received by the process unit and starts to transmit normal RGB data. Priority of the control signal transmitted by the detecting control unit is higher than that of the lock signal. The present invention also provides an LCD detecting method. The present invention can increase the speed of detecting and time to market, enhance competitiveness, increase the speed of manufacturing analysis, saves working time and productivity, and reduces cost.

Techniques for evaluating a second version of software. Embodiments selectively route incoming requests to software instances within a plurality of baseline instances and a plurality of canary instances, where the baseline instances run a first software version and the canary instances run the second software version. The software instances are monitored to collect performance data for a plurality of performance metrics. Embodiments calculate aggregate baseline performance metrics, where each of the aggregate baseline performance metrics is calculated based on the collected performance data for the plurality of baseline instances. For each of the performance metrics and canary instances, embodiments calculate a relative performance value that measures the collected performance data for the respective canary instance and for the respective performance metric, relative to the corresponding aggregate baseline performance metric. A final measure of performance is calculated for the second version of software, based on the relative performance values.

Methods, computer systems, and computer-readable memory media for determining a warp function. An as-designed watertight spline model of an object is received. A point cloud and the as-designed watertight spline model are used to construct a model of the object. The point cloud is obtained from a physical or virtual (simulated) inspection and / or manufacturing process. A warp function is determined based on a difference between the as-designed watertight spline model and the constructed model. The warp function is a continuous function quantifying differences between the as-designed model and the constructed model. As-preprocessed instructions for a simulation or analysis process of the object are determined based on metadata of the as-designed watertight spline model and the warp function. The simulation or analysis process is performed on the object according to the as-preprocessed instructions to produce as-simulated data, and the as-simulated data is stored in a non-transitory computer-readable memory medium.

The invention discloses a high-dimensional static voltage stability boundary calculation method based on a multidimensional holomorphic embedding method, which belongs to the field of power system analysis. First, the multidimensional holomorphic embedding method containing multiple physical mapping factors is used to solve the power system power flow equation, thereby obtaining The analytical expression of the multivariable power series form of the node voltage; then based on the multidimensional Cauchy-Hadama theorem, the analytical expression of the high-dimensional static voltage stability boundary is derived, and the high-dimensional static voltage stability boundary is calculated. The invention uses a multidimensional holomorphic embedding method containing multiple physical mapping factors and combines the multidimensional Cauchy-Hadama theorem to quickly and accurately calculate the high-dimensional static voltage stability boundary in an analytical form.

Aiming at a hardness mismatch phenomenon in the existing structure hardness design process according to an integral intensity viewpoint, the invention provides a quantitative matching design method for structure heat treatment-hardness distribution. The specific method comprises determining an ideal static intensity field distribution of the dangerous section of the structure according to a limit static stress distribution of a dangerous section of the structure; determining an ideal hardness distribution of the dangerous section of the structure by utilizing an intensity-hardness conversion relation; determining heat treatment requirements such as surface hardness, core hardness and the like by combining material and heat treatment mode; determining an actual hardness distribution of the dangerous section of the structure according to a material end quenching curve and the heat treatment requirement.

The invention relates to gas-discharge electrical instrumentation technology. The device for measuring electromagnetic field intensity comprises a measuring instrument for recording the glow of a gas discharge and a gas-discharge chamber that is formed between electrodes 1 and 2 separated by a dielectric 3. The electrode 1 is cylindrical, while the electrode 2 is in the form of a disk. The electrodes 1 and 2 are coupled to an electrical voltage source, wherein a capacitive element in the form of a pair comprising an antenna 5 and a connection to ground 6 is incorporated into the line coupling the cylindrical electrode 1 to the electrical voltage source. A capacitor 7 with variable capacitance is incorporated into the line coupling the cylindrical electrode 1 to the antenna 5. The technical result consists in providing the possibility of detecting a useful signal in a wide frequency range.

The invention relates to a position-measuring device with a code carrier and a method for its operation, the position-measuring device having: at least one first indexing track and a second indexing track, wherein the second The indexing track is an incremental indexing track for a first detector assembly that generates a first position signal by probing the first and second indexing tracks in the measuring direction for probing the second indexing track in the measuring direction A second detector assembly for generating a second position signal on a two-index track, a first position processing unit for processing the first position signal into a first absolute position value, and a first position processing unit for processing the second position signal into a second absolute position The value of the second position processing unit, wherein the second position processing unit can be initialized with an absolute auxiliary position value, and the absolute auxiliary position value is sent to the second position processing unit by the first position processing unit.

A method and device for establishing a protocol relating to a measurement sequence for controlling a magnetic resonance tomography system, the measurement sequence is segmented into various groups of partial modules that are similar to one another. A partial module that potentially generates the greatest physiological exposure for a patient is identified. Furthermore, a test is carried out by means of a model function to determine whether physiological limiting values are being observed in the measurement sequence for the partial module. If the physiological limiting values are not being observed, parameters influencing the measurement sequence are modified and the preceding test step is repeated.

A DC level detection circuit between high speed signal line connecting ports and a system using the same in optical communications is disclosed. Corresponding ports of a high speed signal line each have an additional resistor, where one additional resistor has a resistance significantly greater than that of the other resistor. The smaller resistor is grounded. The larger resistor is connected to a DC voltage source, a low pass filter, and a signal detection port. Thus, when both ports of the high speed signal line are connected, a status of the electrical level detected at the signal detection port changes. The circuit detects the connection state of the high speed signal line without negative effects on signal transmission and is applicable to various circuits, especially plug-in modules and corresponding slots. Thus, the circuit further enables signal port multifunctionality, increases module installation accuracy, and provides higher compatibility for plug-in modules.

An embodiment of the present invention relates to the technical field of display. Particularly, there is provided a flexible screen and a bend identifying method thereof, as well as a flexible display apparatus. The flexible screen comprises a first flexible substrate and a second flexible substrate which are oppositely disposed; the flexible screen further comprises a first electrode which is disposed on one side close to the second flexible substrate of the first flexible substrate and a second electrode which is disposed on one side close to the first flexible substrate of the second flexible substrate, as well as a detection system connected with the first electrode or the second electrode; wherein the first electrode and the second electrode are configured to be in positional correspondence; in a case where the flexible screen is bent, the first electrode and the second electrode are electrically connected. The present invention is used for fabrication of a display apparatus. The present invention may be used for determining whether the flexible screen is excessively bent or flexed.

The invention relates to a position sensor (100) for detecting the position of a position transmitter, wherein the position sensor (100) can be connected with a first electrical signal source for emitting a first electrical signal with a first frequency and for A second electrical signal source emitting a second electrical signal with a second frequency is connected, the position sensor having: a primary coil (101) for generating an alternating magnetic field with a first frequency; a first secondary coil (103) and the second secondary coil (105), wherein the first secondary coil (103) and the second secondary coil (105) can be magnetically coupled to the primary coil (101) via position transmitters respectively, and wherein the alternating The magnetic field can induce a third electrical signal in the first secondary coil (103) and a fourth electrical signal in the second secondary coil (105); the frequency converter (101) is used to convert the third electrical signal into a first intermediate frequency signal and for converting a fourth electrical signal into a second intermediate frequency signal, wherein a frequency converter (107) is connectable to a second electrical signal source; and a Goetzel filter bank (109) for The demodulation of the first intermediate frequency signal to obtain the first demodulated signal is used for the demodulation of the second intermediate frequency signal to obtain the second demodulated signal.

A method for detecting a signal activity on a bus comprises measuring a current on the bus, and determining a signal activity based on the measured current.

The application discloses a quarter inverse raised cosine window generating device and a steepest tracking filter, and the generating device comprises an input end, a subtracter, a first adder, a second adder, a first integrator, a second integrator, a fixed proportional controller and a time delay device; the subtracter, the first integrator and the second integrator are sequentially connected, the second integrator is connected with the subtracter, a closed loop feedback is formed; the first integrator is connected with the first adder, the first adder is connected with the fixed proportional controller, the fixed proportional controller is connected with the time delay device, and the second integrator and the time delay device are respectively connected to the second adder. The quarter inverse raised cosine window function is generated by using multiple integrators, subtracters, time delay devices and multiple adders, which is different from the existing window function; the steepest tracking filter is constructed by using the quarter inverse raised cosine window, the steepest filtering tracking mechanism is realized, the exponential tracking mechanism of the first-order inertial filter is broken through, and the filtering performance is effectively improved.