1110 results about "Time lag" patented technology

Abstract of the Disclosure

Systems and methods for dynamically and intelligently estimating analyte data from a continuous analyte sensor, including receiving a data stream, selecting one of a plurality of algorithms, and employing the selected algorithm to estimate analyte values. Additional data processing includes evaluating the selected estimative algorithms, analyzing a variation of the estimated analyte values based on statistical, clinical, or physiological parameters, comparing the estimated analyte values with corresponding measure analyte values, and providing output to a user. Estimation can be used to compensate for time lag, match sensor data with corresponding reference data, warn of upcoming clinical risk, replace erroneous sensor data signals, and provide more timely analyte information encourage proactive behavior and preempt clinical risk.

Methods and devices and systems for determining an analyte value are disclosed.

The system enables business people to understand the impact of business transactions, changes and events in real-time using advanced rules and analytics to filter, categorize and interpret the significance of streams of real-time information. Most business performance analysis today is done manually and this process is a time consuming and skilled task leading to a time delay in producing the analysis. This time lag between the transaction or event happening and being able to take action on the analysis is measured in weeks or months at many companies. By blending real-time information with historical data and performance goals, this system enables business users to assess business events and collaborate within teams to drive optimal business performance. Using forecasting techniques enables business managers to predict the likelihood of achieving a particular goal without relying on manual analysis by a skilled analyst. The system automatically updates the forecast based on real-time changing data, enabling the business manager to have an up to the minute and statistically valid projection of future business performance.

An adaptive antenna is disclosed, that comprises a plurality of antenna elements 11, 12, . . . , and 1N with different directivity, delay profile measuring units 21, 22, . . . , and 2N for estimating states of received signals of the antenna elements for each of delay times that have been designated, antenna selecting units 31, 32, . . . , and 3L for selecting a part of the antenna elements for each of the delay times corresponding to the estimated result, adaptive signal processing portions 41, 42, . . . , and 4L for determining the received signals of the part of the antenna elements that have been selected and multiplying the received signals to which relevant weights have been determined for each of the delay time and summing the weighted signals, delaying circuits 52 and 53 for compensating the time lag, or delay of each of the received signals for each of the delay times, and a combining unit 6 for combining the weighted signals that have been compensated for the delay times.

A method and system for providing trading indicators for selected instruments traded in a market such as stocks, currency contracts, bonds, commodities contracts, options contracts, and futures contracts. The method and system create trading indicators using Time and Sales data as provide by exchanges or financial data providers. The method comprise parsing time, price and volume of individual transactions into a collection of volume per price bracket per time interval quantities, wherein each quantity is an aggregate volume of transactions executed during one of a set of sequential time intervals and executed at prices within one of a set of price brackets. The method generate trading indicators by using mathematical algorithms to score individual volume per price bracket per time interval quantities corresponding to an evaluation time interval against a population of individual volume per price bracket per time interval quantities corresponding to a set of previous time intervals. The system generates trading indicators in real time, without the time lag associated to traditional technical analysis indicators. The method and system can also generate trend indicators based on analysis of volume accumulation, and defines trading indicators based on maximum volume prices.

A blood pressure monitoring system includes a blood pressure measurement device for measuring blood pressure using a cuff, a memory for storing an externally inputted pulse wave propagation time fluctuation threshold, a time interval detection reference point detection section for detecting a time interval detection reference point in a pulse wave on the side of aortae of a living organism, a pulse wave detection section for detecting a pulse wave on the side of peripheral blood vessels appearing with a time lag with respect to the pulse wave on the side of aortae, a pulse wave propagation time measurement section for measuring a pulse wave propagation time based on respective detected outputs from the time interval detection reference point detection section and the pulse wave detection section, an operation device for calculating a pulse wave propagation fluctuation from two measured pulse wave propagation times, a judgment device for judging whether or not the calculated pulse wave propagation time fluctuation exceeds the pulse wave propagation time fluctuation threshold read from the memory, and a control device for controlling the blood pressure measurement device based on an output of the judgment device so that the blood pressure of a subject is measured using the cuff.

The invention provides a system and a method for optimally controlling ammonia denitration, which are characterized in that according to the content of oxynitride which is detected by an oxynitride sensor at the inlet of a reactor and fed into the reactor, the content of oxynitride which is detected by the oxynitride sensor at the outlet of the reactor and discharged from the reactor, and the continuous online measuring value of the oxynitride at the outlet of the reactor and the escaped ammonia amount detected by an ammonia sensor at the outlet of the reactor, the ammonia-injected amount is calculated according a transfer function; the control system has positive and negative feedback correction effects on feedforward loops, and monitors the continuous online measuring value of the oxynitride, thereby ensuring the implementation of meeting the qualified oxynitride discharge index; the control system is provided with two lag time functions so as to overcome the effect of time lag, eliminate the fluctuations of the oxynitride content and ammonia-injected amount at the outlet of the reactor; and meanwhile, the control system is also provided with an ammonia escape detection sensor for preventing the escape of ammonia.

Techniques for determining if two video signals match by extracting features from a first and second video signal, and cross-correlating the features thereby providing a cross-correlation score at each of a number of time lags, then determining a mean magnitude of a difference of average values at each of the lags, and finally determining the similarity score based on both the cross-correlation scores and the mean magnitude difference scores, and optionally then outputting an indication of a degree of match between the first and second video signals.

In an information reception, recording and reproduction apparatus for implementing a time shift reproduction by utilizing a disk recording medium that allows random access, a time lag occurs in the video sound signals outputted via a path where an inputted video sound signal is outputted in real time and via a path where the inputted video sound signal is outputted through a recording medium and, therefore, the information reception, recording and reproduction apparatus for outputting video sound signals by utilizing the above two paths cannot carry out a smooth switching of the reproduction condition nor a switching of the inputted video sound signal. By providing a means of reproducing the inputted video sound signal after recording it in the above disk recording medium 103, a means of reproducing the inputted video sound signal after recording it in a semiconductor recording medium 105, which allows high speed access, and a means of reproducing the inputted video sound signal in real time without recording it in a recording medium and, by switching between these reproduction means in accordance with the reproduction condition so as to carry out the reproduction, a smooth switching of the reproduction condition can be carried out.

A system for detecting malfunctions of an exhaust switch-over valve of an internal combustion engine, which opens/closes a bypass exhaust gas passage branched from an exhaust pipe of the engine and storing an adsorbent that adsorbs unburned components of the exhaust gas generated by the engine when the engine is started. In the system, the entrance temperature and the exit temperature in the bypass exhaust gas passage are detected and compared with each other in a first detection period when the passage is opened and in a second detection period when the passage is closed. Based on this comparison, it is determined whether the valve malfunctions. Alternatively, the valve malfunction is determined by comparing the valve opening/closing state with an instruction to operate the valve. With this, little time lag exists in the detection, thereby improving malfunction detection accuracy.

The invention relates to a gray model-free control method for a large time lag system. A gray prediction model is combined with model-free control, and complex objects are controlled by adopting a control method of adding the gray prediction model into the model-free control so as to realize the gray model-free control of the large time lag system. Therefore, large time lag can be controlled effectively by the method, and the method has the advantages of small system overshoot, quick stabilization, strong adaptivity and robust performance, and can be applied to the industrial complex large time lag control process.

The invention relates to a full-variable fertilizing device capable of adjusting the fertilizer sowing quantity and proportion and a control method thereof. The device comprises three fertilizer cans, three rows of fertilizer feeders corresponding to the three fertilizer cans, three fertilizer discharging shafts, three fertilizer discharging shaft driving motors, a blending fertilizer falling pipe, a blending auger, an auger driving motor, a fertilizer falling pipe fixing plate, and an electrical control part. The control method is characterized in that under the control of the electrical control part, by controlling the rotating speeds of the fertilizer discharging shafts, the fertilizer sowing quantities of the fertilizer cans are controlled, so that different unit fertilizers or composite fertilizers in the three fertilizer cans are uniformly blended according to the proportion of nitrogen to phosphor to potassium, and the real-time accurate full-variable intelligent fertilizer control of the fertilizer quantities and proportion of nitrogen, phosphor and potassium is realized accurately on line at real time, and the contradiction between space-time difference and crop nutritional requirement difference of soil fertility distribution is balanced easily. The device has simple structure and small time lag in the process of discharging fertilizer. According to the variable fertilizing formula and the location of the device, the device is operated without a driver, and the operation is convenient. According to the invention, the blending technology of fertilizers is shifted from factory technology to fertilization process, and the problem of nonuniform distribution of nutrients in packages caused by easy layering of fertilizers in the storage and transportation process of bulk blending (BB) fertilizers is eliminated.

A water leakage monitoring system including a water leakage position estimator which includes a periodic data acquiring unit for fetching predetermined-period flow rate pressure data stored in a monitoring device, and for fetching a signal related to a flow rate change and pressure changes expecting a water leakage reaction time calculating unit for calculating a pressure reaction time lag between two pressure changes, a pressure propagation velocity estimating unit for estimating a pressure propagation velocity using the pressure reaction time lag and a distance between two pressure gauges located in a water distribution block stored in a pipeline network map data, and a flow rate change position estimating unit for receiving a signal related to the flow rate change, and estimating a flow rate change position using pressure propagation velocity and a flow meter and pressure gauge locating positions of the pipeline network map data.

The invention is a method for inferring the saturation and pressure change of a reservoir by combining the information from 4D (time-lapse) seismic and time lag data volumes (7) derived from the 4D seismic, well logs (4), and reservoir simulation results (when simulator results are available) and featuring one or more 4D well ties (1) for a quantitative 4D interpretation. The inventive method uses model-based inversion incorporating rock physics (2) at well locations (5), and is statistical-based (6) away from wells. The method thus allows integration (8) of rock physics model and reservoir simulation and honors 4D seismic change.

An electrode-less discharge lamp lighting apparatus which is electrically connected to a dimming unit (2) is provided with: an electrode-less fluorescent lamp (3); and a lighting circuit (4) operable to apply a high-frequency voltage to the electrode-less fluorescent lamp (3), wherein the lighting circuit (4) includes: an AC/DC converting unit (5) operable to convert a phase-controlled AC voltage outputted from the dimming unit (2) into a DC voltage; a DC/AC converting unit (6) operable to convert the DC voltage into a high-frequency voltage; and a dimming controlling unit (7) that includes a resistor (29), a switching element (28), and a timer circuit (27) so as to detect a timing of a turn-on of the phase-controlled AC voltage and to, based on the detected timing, allow a current whose value is at least a threshold to flow across output terminals of the AC/DC converting unit (5) for at least a duration of a time lag between the turn-on of the phase-controlled AC voltage and the generation of the high-frequency voltage by the DC/AC converting unit (6).

Techniques for determining if two video signals match by extracting features from a first and second video signal, and cross-correlating the features thereby providing a cross-correlation score at each of a number of time lags, and finally determining the similarity score based on both the cross-correlation scores.

The invention relates to a grey active disturbance rejection control (ADRC) method of a long time-delay system. The method comprises the following steps of: arranging a grey prediction model GM (1,1) in a feedback circuit of ADRC; and compensating system time delay and processing system uncertainty caused by parameter time variation and the like by using grey advanced predication so as to form a new control law acting on a controlled object, improve the control effect of the ADRC and fulfill the aim of efficiently controlling a complicated time delay object. By the control method, the dynamic and steady control performance of a long time-delay time-varying object can be effectively improved by a control system.

A technique is described for use in a decoder configured to decode a series of frames representing an encoded audio signal. The technique is for transitioning between a lost frame and one or more received frames following the lost frame in the series of frames. In accordance with the technique, an output audio signal associated with the lost frame is synthesized. An extrapolated signal is generated based on the synthesized output audio signal. A time lag is calculated between the extrapolated signal and a decoded audio signal associated with the received frame(s), wherein the time lag represents a phase difference between the extrapolated signal and the decoded audio signal. The decoded audio signal is time-warped based on the time lag, wherein time-warping the decoded audio signal comprises stretching or shrinking the decoded audio signal in the time domain.

An electronic camera according to the present invention includes: an image pickup part for picking up a subject image to produce image data; a processing part for processing the image data outputted from the image pickup part to produce a quickview image for monitor display and also produce image data for record on a recording medium; and a monitor part for displaying the quickview image. The processing part commences displaying the quickview image on the monitor part prior to the production of the image data for record. This processing allows the display of the quickview image to be commenced without waiting for completion of the production of the image data for record. Therefore, it is possible to shorten the time lag occurring at displaying the quickview image, thereby improving the convenience of the electronic camera.