66results about How to "Accurate modulation" patented technology

Accurate simulation of sport to quantify and train performance constructs by employing sensing electronics for determining, in essentially real time, the player's three dimensional positional changes in three or more degrees of freedom (three dimensions); and computer controlled sport specific cuing that evokes or prompts sport specific responses from the player that are measured to provide meaningful indicia of performance. The sport specific cuing is characterized as a virtual opponent that is responsive to, and interactive with, the player in real time. The virtual opponent continually delivers and / or responds to stimuli to create realistic movement challenges for the player.

Accurate simulation of sport to quantify and train performance constructs by employing sensing electronics for determining, in essentially real time, the player's three dimensional positional changes in three or more degrees of freedom (three dimensions); and computer controlled sport specific cuing that evokes or prompts sport specific responses from the player that are measured to provide meaningful indicia of performance. The sport specific cuing is characterized as a virtual opponent that is responsive to, and interactive with, the player in real time. The virtual opponent continually delivers and / or responds to stimuli to create realistic movement challenges for the player.

A base station using multiple antennas receives channel quality information from a terminal so as to allocate uplink / downlink resources to the terminal. Herein, the channel quality information is measured on the basis of a downlink preamble or pilot signal, and may include a received CINR or received signal strength. In addition, the base station predicts a received SINR by using a channel response and channel quality information between the multiple antennas and the terminal, and allocates a resource to the terminal according to the received SINR.

Methods and systems for transcranial ultrasound neuromodulation as well as targeting such neuromodulation in the brain are disclosed. Automated transcranial Doppler imaging (aTCD) of blood flow in the brain is performed and one or more 3-dimensional maps of the neurovasculature are generated. Ultrasound energy is delivered transcranially in conjunction to induce neuromodulation. One or more brain regions for neuromodulation are targeted by using brain blood vessel landmarks identified by aTCD components. The landmarks are used for initial targeting of the neuromodulation to one or more brain regions of interest and / or for maintaining neuromodulation targeting despite user or device movements. Acoustic contrast agents may be employed to generate broadband ultrasound waves locally at the site of target cells. Transcranial ultrasound neuromodulation may be achieved by having confocal ultrasound waves differing in acoustic frequency by a frequency effective for neuromodulation interfere to generate vibrational forces in the brain that induce neuromodulation.

Accurate simulation of sport to quantify and train performance constructs by employing sensing electronics for determining, in essentially real time, the player's three dimensional positional changes in three or more degrees of freedom (three dimensions); and computer controlled sport specific cuing that evokes or prompts sport specific responses from the player that are measured to provide meaningful indicia of performance. The sport specific cuing is characterized as a virtual opponent that is responsive to, and interactive with, the player in real time. The virtual opponent continually delivers and / or responds to stimuli to create realistic movement challenges for the player.

A radar sensor system and method for vehicles. An example radar system includes a processor, a plurality of transceivers having antenna(e). The antenna of the transceivers are located at various points around the vehicle. The transceivers include receive and transmit electronics that are in signal communication with the corresponding antenna. The transmit electronics output radar signals via the antenna. The transmit electronics include a voltage controlled oscillator (VCO), a dielectric resonator oscillator (DRO), a phase locked loop (PLL) component and a direct digital synthesizer (DDS). The receive electronics receive from the antenna any radar reflections corresponding to the outputted radar signals and send signals associated with the radar reflections to the processor. The processor generates output signals based on the signals received from the plurality of transceivers.

A program circuit and method for a flash memory is provided. This invention utilizes a constant current to program the flash memory and modulate the threshold voltage of the flash memory. While a program circuit programming the flash memory, the present invention determines whether the threshold voltage reaches the anticipated value according to the variation of the drain voltage of the flash memory. Hence, the present invention can accurately modulate the threshold voltage of the programmed flash memory and shorten the programming time.

A phase modulation section (101) generates a first modulated signal including phase information. An amplitude signal control section (103) generates a second modulated signal including amplitude information. A waveform shaping section (104), when an amplitude of the second modulated signal is larger than a regulated value generates a waveform-shaped modulated signal. An amplitude modulated voltage supply section (105) amplifies the waveform-shaped modulated signal based on the supply voltage from a voltage control section (106) and supplies the amplified signal to a power amplification section (102). The power amplification section (102) amplifies the first modulated signal based on the amplitude modulated voltage, and outputs the resultant signal. The waveform shaping section (104) adjusts the regulated value in accordance with a factor for changing a distorted power generated by the power amplification section (102), such that an ACP generated by the power amplification section (102) becomes a first predetermined value or smaller.

A projection-type display device 100 including a light source 10, a luminance modulation light valve having a plurality of pixels capable of independently controlling a transmission factor T1, dichroic mirrors 44a and 44b that divided the light from the luminance modulation light valve into the three primary colors of red, green and blue, a plurality of color modulation light valves into which light divided with dichroic mirrors 44a and 44b respectively enters and have a plurality of pixels capable of independently controlling a transmission factor T2, and a dichroic prism 48 that synthesizes light from each of the color modulation light valves, and is provided with a relay optical system 16 on the light path of a luminance modulation section 14 and a color modulation section 18 that forms an optical image of the luminance modulation light valve on the pixel surfaces of each of the color modulation light valves.

A method of transmitting and receiving a channel quality indicator (CQI) for a sleep-mode mobile station is disclosed. When data to be transmitted to the mobile station is present, the mobile station which is in a sleep mode is directed to transition to a normal mode and simultaneously a temporary CQI channel is allocated thereto. Thus the mobile station which has transitioned to the normal mode from the sleep mode efficiently transmits the CQI, and data applying a proper modulation and coding scheme can be transmitted.

A ratio of data transmission power of a layer per RE to RS transmission power of the layer per RE is predefined according to rank. A BS determines downlink transmission power for a PDSCH according to the predefined rank and a UE assumes that the PDSCH and UE-specific RS(s) for the PDSCH is transmitted with power satisfying the ratio.

The invention discloses a gradation display modulating method for an electrowetting display. The gradation display modulating method includes applying initial referential voltage between two electrodes of pixels of the electrowetting display and retaining for a while, allowing the nonpolar fluid in the electrowetting display to contract, determining a first predetermined voltage and a first predetermined time period according to target gradation of the pixels of the electrowetting display, lowering the initial referential voltage between two electrodes of pixels to the first predetermined voltage, retaining the first predetermined voltage in the first predetermined time period, releasing the contraction state of the nonpolar fluid, and the pixels displaying target gradation. The method makes full use of characteristic that nonpolar fluid is more stable during a lowering stage. The electrowetting display device is driven by lowering voltage in different phases to move nonpolar fluid stably, and the occupied area of the nonpolar fluid is accurately modulated. The visual area of each pixel grid can be accurately modulated, to control the display contrast of integral pixels and realize accurate gradation display.

A phase modulation section (101) generates a first modulated signal including phase information. An amplitude signal control section (103) generates a second modulated signal including amplitude information. A waveform shaping section (104), when an amplitude of the second modulated signal is larger than a regulated value generates a waveform-shaped modulated signal. An amplitude modulated voltage supply section (105) amplifies the waveform-shaped modulated signal based on the supply voltage from a voltage control section (106) and supplies the amplified signal to a power amplification section (102). The power amplification section (102) amplifies the first modulated signal based on the amplitude modulated voltage, and outputs the resultant signal. The waveform shaping section (104) adjusts the regulated value in accordance with a factor for changing a distorted power generated by the power amplification section (102), such that an ACP generated by the power amplification section (102) becomes a first predetermined value or smaller.

A method and apparatus for generating a burst FSK signal having precisely shaped transitions between modulation states. The apparatus uses feedforward compensation of phase gain and phase preemphasis coefficients for compensating the frequency conversion gain of the apparatus, and the phase gain coefficient is used for stabilizing a frequency synthesis loop. The phase gain and preemphasis coefficients are determined in a calibration within the time constraints of on-line signal bursts based upon measured phase errors and accelerated predicted phase gain and preemphasis phase errors.

A lithographic apparatus includes an interferometer configured to measure a position of a mirror of the lithographic apparatus. For measuring unflatness of the mirror the interferometer includes a modulator configured to modulate a position of an input beam of the interferometer, a synchronous detector configured to synchronously detect an interfered, modulated beam, and a calculator configured to calculate an unflatness of an area of the mirror from an effect of the modulation of the position of the input beam on an output signal of the synchronous detector. The modulator can include a rotatable, tilted, plan plate.

The invention relates to an eigenfrequency tracking measurement method of a Sagnac optical fiber ring of an optical fiber gyroscope, and belongs to the technical field of fiber-optic gyroscopes. The eigenfrequency tracking measurement method comprises the following steps: after going through a coupler and a Y waveguide phase modulator, dividing light into two beams of linearly polarized light, respectively propagating the two beams of linearly polarized light clockwise and anticlockwise along an optical fiber sensing ring, performing sawtooth wave phase modulation and square wave bias phase modulation at the phase modulator and then returning to a Y waveguide position for interference; after processing, demodulating an error signal from an FPGA (field programmable gate array); and adjusting the frequency of a sawtooth wave modulation signal and the frequency of a square wave bias modulation signal according to the intensity of the error signal, wherein the frequency of the sawtooth wave signal is equal to the even number times of the eigenfrequency, and the error signal is zero, and at the moment, the square wave bias modulation frequency is accurately located on the eigenfrequency, the frequency of the sawtooth wave modulation signal is just the even number times of the eigenfrequency, and the square wave bias modulation frequency is equal to the eigenfrequency. According to the method, the purposes of tracking measurement for the eigenfrequency of the optical fiber gyroscope and adjustment of the square wave bias frequency onto the eigenfrequency are realized.

A method and apparatus for generating a burst FSK signal having precisely shaped transitions between modulation states. The apparatus uses feedforward compensation of phase gain and phase preemphasis coefficients for compensating the frequency conversion gain of the apparatus, and the phase gain coefficient is used for stabilizing a frequency synthesis loop. The phase gain and preemphasis coefficients are determined in a calibration within the time constraints of on-line signal bursts based upon measured phase errors and accelerated predicted phase gain and preemphasis phase errors.

The present invention relates to a novel multi-functional nanocomposite additive made from rare earth element complex modified organic clay which is called MFNA and methods for making and using the same, particularly in applications of coating manufacture industry. Such MFNA-modified coatings have desired features and improved physical and mechanical properties comparing the current available coatings.

The invention provides a cardiopulmonary harmony series index evaluating method, device and system. The method includes the following steps that electrocardio signals, respiratory signals and motion signals of evaluated people are filtered, denoised and pretreated, a RR interval sequence is extracted from the electrocardio signals, and according to the RR interval sequence and the respiratory signals, a binary regression mathematical model is constructed; parameters in the binary regression mathematical model are transformed to a frequency domain to obtain a transformation matrix; the transformation matrix is analyzed to obtain a cardiopulmonary harmony series index; the cardiopulmonary harmony series index includes a cardiopulmonary harmony curve, a cardiopulmonary harmony degree, cardiopulmonary resonance frequency, a cardiopulmonary resonance factor, a cardiopulmonary harmony curve bandwidth and a cardiopulmonary resonance quality factor; and the cardiopulmonary harmony curve is used for representing the effect value of respiration on the modulation of the RR interval sequence at different frequency points in the frequency domain. By proposing the concept of the cardiopulmonaryharmony series index, the embodiment of the invention provides a method to obtain the cardiopulmonary harmony series index, and can provide the reliable digital measurement for the evaluation of a cardiopulmonary metabolism system.

A driving circuit is provided for a control terminal of a bipolar transistor in an emitter-switching configuration. The emitter-switching configuration is between a resonant load and a voltage reference. The driving circuit includes at least one capacitor between the control terminal of the bipolar transistor and the voltage reference. The driving circuit further includes an additional resonance capacitor between a collector terminal of the bipolar transistor and a circuit node, a first diode between the circuit node and the control terminal, and a second diode between the circuit node and the voltage reference.

A method and apparatus for generating a burst FSK signal having precisely shaped transitions between modulation states. The apparatus uses feedforward compensation of phase gain and phase preemphasis coefficients for compensating the frequency conversion gain of the apparatus, and the phase gain coefficient is used for stabilizing a frequency synthesis loop. The phase gain and preemphasis coefficients are determined in a calibration within the time constraints of on-line signal bursts based upon measured phase errors and accelerated predicted phase gain and preemphasis phase errors.

A wobbling signal demodulation method is disclosed that is capable of fast and precisely demodulating a wobbling signal without increasing cost of the circuit. The wobbling signal is obtained based on light reflected from a recording surface of an optical disk having a wobbling track formed thereon, and includes a carrier portion having a predetermined basic period and a phase demodulated wave portion including predetermined information. The wobbling signal demodulation method includes a first step of respectively integrating a portion of the wobbling signal corresponding to a first half of the basic period and a portion of the wobbling signal corresponding to a second half of the basic period in synchronization with a clock signal generated from the carrier portion; a second step of generating a digital signal based on a first integration result corresponding to the first half of the basic period and a second integration result corresponding to the second half of the basic period; and a third step of performing a phase demodulation on the phase demodulated wave portion of the wobbling signal based on the digital signal and the clock signal.

The embodiment of the invention provides a control method and device of a two-way electromagnetic force control valve for common rail flow control. The method comprises the steps that real-time commonrail oil pressure of a common rail system is obtained; common rail differential pressure is obtained according to the real-time common rail oil pressure of the common rail system and target oil pressure of the common rail system; the duty ratio of a direction signal, a driving signal and a pulse width modulation signal is calculated according to the common rail differential pressure; and the corresponding direction signal, driving signal and pulse width modulation signal are output to a bidirectional current controller according to the electrical level state of the direction signal, the electrical level state of the driving signal and the duty ratio of the pulse width modulation signal, and are used for generating a corresponding driving current in the bidirectional current controller, sothat a sliding valve core of the two-way electromagnetic force control valve is driven by the driving current to slide. The control method and device of the two-way electromagnetic force control valve for the common rail flow control can achieve fast and accurate adjustment of the common rail pressure of the high pressure common rail oil supply system.

A method for encoding information that is encoded in spatial variations of the intensity of light characterized by a first wavelength in light characterized by a second wavelength, the method comprising: transmitting the first wavelength light through a photo-conducting material in which electron-hole pairs are generated by absorbing photons from the first wavelength light to generate a first density distribution of electrons homologous with the spatial variations in intensity of the first wavelength light; trapping electrons from the first electron density distributions in a trapping region to generate an electric field homologous with the density distribution in a material that modulates a characteristic of light that passes therethrough responsive to an electric field therein; transmitting a pulse of light having sufficient energy to generate electron-hole pairs in the photo-conducting material through the modulating material and thereafter through the photo-conducting layer to generate a second additional electron density homologous with the first electron density distribution; trapping electrons from the second electron density distribution in the trapping region; and transmitting the second wavelength light through the modulating material thereby modulating the second wavelength light in response to the electric field and encoding it with the information.

A wobbling signal demodulation method is disclosed that is capable of fast and precisely demodulating a wobbling signal without increasing cost of the circuit. The wobbling signal is obtained based on light reflected from a recording surface of an optical disk having a wobbling track formed thereon, and includes a carrier portion having a predetermined basic period and a phase demodulated wave portion including predetermined information. The wobbling signal demodulation method includes a first step of respectively integrating a portion of the wobbling signal corresponding to a first half of the basic period and a portion of the wobbling signal corresponding to a second half of the basic period in synchronization with a clock signal generated from the carrier portion; a second step of generating a digital signal based on a first integration result corresponding to the first half of the basic period and a second integration result corresponding to the second half of the basic period; and a third step of performing a phase demodulation on the phase demodulated wave portion of the wobbling signal based on the digital signal and the clock signal.

A method for encoding information that is encoded in spatial variations of the intensity of light (24) of a first wave-length into light of a second wavelength, the method comprising: generating a first density distribution of electrons homologous with the spatial variations in intensity of the first wavelength light; generating a second additional electron density homologous with the first electron density distribution; trapping electrons from the first and second electron density distributions in a trapping region (34) to generate an electric field homologous with the density distributions in a material (36) that modulates a characteristic of light (22) that passes therethrough responsive to an electric field (46) therein; and transmitting the second wavelength light (22) through the modulating material (36) thereby modulating the second wavelength light in response to the electric field and encoding it with the information.

A terrarium including a base, a support column, a top, and one or more arcuate panels with a closure is provided. The base can include one or more base channels, and the top can include one or more top channels. The top can be supported entirely by the support column at a first preselected distance from the base. One or more arcuate panels can extend between the top and the base, being disposed in the top channel and the base channel, and forming an opening. Another arcuate panel can form a closure over the opening, with that panel optionally slidable to selectively access an internal compartment of the terrarium. The support column can support the top and assist in holding the arcuate panels, as well as form a ventilation chimney associated with the internal compartment. Related methods of use are provided.

A space vector based synchronous modulating method includes sampling a frequency f of a reference voltage vector; checking a relational table of frequencies and carrier wave ratios by the frequency f so as to obtain a carrier wave ratio N; obtaining a passing angle Δθ of the reference voltage vector by Δθ=2π / N; obtaining a modulating angle θm of the reference voltage vector by θm=(Nth−1)×Δθ, in which Nth indicates which time of sampling; obtaining a modulating ratio m according to a modulating ratio-frequency curve; accounting and synthesizing an output angle of three basic voltage vectors of the reference voltage vector according to the modulating angle θm and the passing angle Δθ of the reference voltage vector and the modulating ratio m; comparing a variable quantity θf the reference voltage vector angle θ and the output angle of three basic voltage vectors, and outputting corresponding basic voltage vectors according to the comparing result; synthesizing an output voltage in accordance with the reference voltage vector by the basic voltage vectors.

A color temperature modulating method involves: computing blackbody spectrums including a target color temperature, and performing normalization at a benchmark wavelength to define a common color-temperature area; selecting a white LED containing phosphor; adjusting the white LED's intensity such that the primary-peak wavelength is close to a maximum relative intensity in the common color-temperature area accordingly; using a blue LED, a green LED, and at least two red LEDs, wherein peak wavelengths of the blue and green LEDs are located between the primary and the secondary wavelength of the white LED, and peak wavelengths of the red LEDs are greater than the primary-peak wavelength; and adjusting relative intensities of the blue, green, and red LEDs to make a relative intensity of a combination of these LEDs and the white LED close to the target color temperature.

A variable speed drive for an electrostatic motor provides feedback control by conversion of measured current phases provided to the motor into a vector in a rotating rotor framework. This vector is used for evaluating corrective voltages and then reconverted to a non-rotating framework for application to the motor electrodes. Current-source drive circuits provide current stabilized outputs making such sophisticated control tractable.