151 results about "Energy measure" patented technology

Disclosed herein is a light fixture. The light fixture includes at least one first light source that emits at a peak wavelength in a range of approximately 380 nm to approximately 420 nm and at least one second light source that emits at a different peak wavelength, wherein a combined light output of the at least one first light source and the at least one second light source emits a colored light that is perceived as white light. The white light is defined by having a color rendering index (CRI) value of more than approximately 50. The at least one second light source that emits at a different peak wavelength consists of an xy coordinate on a International Commission on Illumination (CIE) 1931 xy color space diagram above a black body curve within a bounded area defined by a first line of approximately y=2.23989x−0.382773 and a second line of approximately y=1.1551x−0.195082. The combined light output has a proportion of spectral energy measured in the approximately 380 nm to approximately 420 nm range of greater than approximately 20%.

A method for assisting in the diagnosis of heart murmurs. The method calculates a normalized measure of mid-range energy for at least one systolic or diastolic interval in a sequence of heartbeats and displays the mid-range energy measure of the systolic and/or diastolic interval in a graphical form. The sequence of heartbeats is also processed to detect and diagnose heart murmurs by adjusting a murmur count threshold responsive to the mid-range energy. The method may be used to diagnose hypertrophic cardiomyopathy and to determine effective therapeutic drug dosage or therapeutic device setting.

Disclosed herein is a light fixture. The light fixture includes at least one first light source that emits at a peak wavelength in a range of approximately 380 nm to approximately 420 nm and at least one second light source that emits at a different peak wavelength, wherein a combined light output of the at least one first light source and the at least one second light source emits a colored light that is perceived as white light. The white light is defined by having a color rendering index (CRI) value of more than approximately 50. The at least one second light source that emits at a different peak wavelength consists of an xy coordinate on a International Commission on Illumination (CIE) 1931 xy color space diagram above a black body curve within a bounded area defined by a first line of approximately y=2.23989x−0.382773 and a second line of approximately y=1.1551x−0.195082. The combined light output has a proportion of spectral energy measured in the approximately 380 nm to approximately 420 nm range of greater than approximately 20%.

Methods and apparatus for early detection and identification of a threat such as individuals carrying hidden explosive materials, land mines on roads, etc. are disclosed. Methods comprise transmitting radar signals in the direction of a potential threat, measuring the energy in reflected signals, dynamically generating a threat threshold value from signals received from multiple areas and comparing the energy in the reflected signals corresponding to different areas to the generated threat threshold value. The threat threshold value may be generated by averaging the weighted reflected energy measured from different areas during a single scan of a region including the different areas. The contribution to the threshold from different areas is weighted in some embodiments as a function of the distance from the transmitter and/or receiver to the particular area. Analysis of areas and treating different areas as segments facilitates accurate analysis and display of threat information.

The invention discloses an online collecting and monitoring system of energy measuring data, which is composed of two parts, wherein the one part is a hardware platform centered by a MCU control module, and the other part is a management center platform centered by a master station; the management center platform can remotely manage the collector through a GPRS module, the hardware platform can perform data collection on an intelligent meter by 485 method and a wave carrier method and report to the management center; the online collecting and monitoring system is characterized in that the hardware platform comprises an embedded controller circuit, an RS-485 communication circuit, a GPRS communication circuit, an electricity carrier wave communication circuit, a clock circuit, a display circuit, a power circuit, a keyboard input circuit, a JTAG debugging circuit and a storage circuit; the collector adopts two communication methods totally, and two communication methods carry out the data communication by a serial port; the RS-485 communication circuit can modulate the signal to be symmetrical form so as to carry out signal transmission in the manner of balance sending; then the signal is received by a differential way; a half-duplex operation mode of master and slave structures is adopted.

A plurality of transceivers (114) each include a transceiver circuit (409), and a processing system (412) coupled to the transceiver circuit. A periodic communication cycle is divided into a plurality of frames, each frame having a predetermined interval. Each of the plurality of frames in turn is subdivided into first and second portions (301, 303), whereby the second portion is used by the transceivers for requesting access to a communication medium (113). The second portion is further subdivided into a plurality of time slots, each time slot having a duration equal to or greater than a predetermined propagation delay of a signal transmitted between transceivers. Each of the transceivers is assigned to a corresponding one or more of the time slots. When transmitting a message from a selected one of the transceivers to a recipient communication device (115), the processing system of the transceiver selected is adapted to enable the transceiver circuit to monitor transmission energy in the communication medium during a time slot immediately preceding the time slot assigned to the transceiver selected (208, 210, 212), and if the energy measured is below a predetermined threshold, cause the transceiver circuit to transmit at least a portion of the message to the recipient communication device beginning at the time slot assigned to the transceiver selected (214, 216, 218, 220).

The invention discloses a building energy management and energy consumption data evaluation system and a method thereof. The system includes energy consumption intelligent instruments, namely energy measuring units, is provided with a concentrator, a communication server, a database server and a back-stage analysis/display module. The method includes the steps as, firstly, communication with the energy consumption intelligent instruments; secondly, real-time acquisition for data collected by the intelligent instruments; thirdly, data classification and measure unit unification of data of the same kind; fourthly, statistics analysis for energy data of the same type and at the same region; fifthly energy effect analysis chart display, and overproof warning based on the prejudgement; and sixthly, anticipated effect evaluation. Through the adoption of system and the method, the energy consumption data is synchronous, timely, complete, real and clear, combined with the actual energy consumption, the anticipated energy consumption can be analyzed and contrasted, the advanced wireless technology and related equipment for communication are adopted, so that difficulty of wiring is greatly reduced, and problems brought by wiring are eliminated, synchronizing management and detailed analysis are realized, and the management report and effect analysis report can be generated directly.

Disclosed herein is a device which inactivates microorganisms. The device includes a light emitter and at least one light-converting material arranged to convert at least a portion of light from the light emitter. Any light emitted from the light emitter and converted light emitted from the at least one light-converting material mixes to form a combined light, the combined light having a proportion of spectral energy measured in an approximately 380 nm to approximately 420 nm range of greater than approximately 20 percent. In another embodiment, the device includes a light emitter configured to emit light with wavelengths in a range of 380 to 420 nm, and at least one light-converting material including at least one optical brightener and configured to emit a second light. The first light exiting the device and the second light exiting the device mix to form a combined light, the combined light being white.

This invention puts forward an energy direction pilot protection method and a device based on Bergeion model and faulty component, in which, the method utilizes symbols of active energy measured at both ends of the circuit and utilizes the model to compensate the voltage of both ends to the circuit middle point to solve the problem that the active energy direction element can not judge the faulty direction correctly since the resistance is very small in the system when the positive direction of the circuit is faulty.

A method of initializing an ITU Recommendation G.729 Annex B voice activity detection (VAD) device is disclosed, having the steps of (1) extracting a set of parameters from a signal that characterize the signal; (2) calculating an energy measure of the signal from the set of parameters; (3) comparing the energy measure with a reference value; (4) determining an initial value for an average of a noise characteristic of the signal; and (5) counting the number of times the energy measure equals or exceeds the reference level.

Also disclosed is a method of converging an ITU Recommendation G.729 Annex B voice activity detection (VAD) device, having the steps of: (1) determining a noise identification threshold value; (2) comparing a number of energy measures of a signal to the noise threshold value; (3) determining a first value representing an average of the number of energy measures, when the energy measure is less than the noise threshold, wherein only the energy measures of the number of energy measures having values less than the noise threshold value are used to determine the first value; (4) determining a second value representing an average of the number of energy measures; and (5) substituting the first value for the second value when a specific event occurs, indicating the divergence of the two values.

The invention discloses a lighting dose real-time controlling apparatus. The apparatus comprises orderly arranged components along an optical axis, which are: a light source, a lighting system, a mask bench, an object lens, and a workpiece bench. A first light energy detector and a second energy spot sensor are respectively arranged in the lighting system and on the workpiece bench. The apparatus is characterized in that: a third light energy detector is arranged in the light path between the first light energy detector and a second light energy spot sensor. The third light energy detector is used for measuring the lighting dose in real time during exposure. With the apparatus provided by the invention, light intensity between the first light energy detector and a second light energy spot sensor can be measured in real time during exposure, such that a yield is not influenced. The third light energy detector is arranged between the first light energy detector and a second light energy spot sensor, such that an influence of varied optics transmissivities between a first and a third light energy detectors is avoided. Therefore, a complicated transmissivity prediction model is not required. An accurate energy measured on a silicon surface can be obtained through simple reforming. Dose controlling can be carried out upon exposure fields according to the measuring results, such that dose accuracy can be improved.

The invention provides a frequency jitter circuit, comprising an oscillating circuit, a decoding circuit, a level selecting circuit and a comparator circuit, wherein the oscillating circuit is used for generating a sawtooth signal; an oscillation frequency signal is input into the decoding circuit and controls the decoding circuit to generate a plurality of pulse signals; the pulse signals control the level selecting circuit to generate an output level signal which varies along with variation of a pulse output signal; the comparator circuit is used for comparing the sawtooth signal of the oscillation frequency and the output level signal and generating a frequency jitter signal; and the duty ratio of the frequency jitter signal and the edge of turn-on/turn-off vary along with variation of the output level signal. The invention also provides a method for generating frequency jitter. The frequency jitter circuit provided by the invention has the advantages of simple lines and easy realization. Meanwhile, frequency jitter ensures the switching frequency to be in a wide frequency range, ensures the EMI energy measured by EMI equipment to be diffused beyond the bandwidth, reduces the average EMI noises and flattens the energy spectrum density of the EMI noises.

A Signal-to-interference ratio (SIR) measuring apparatus in a multiple antenna high data rate packet transmission system measures signal energy to interference energy ratio by using pilot signals that are orthogonal to each other between antennas signals and used by a receiver for separating the signals transmitted from all of the transmitting antennas from each other. The SIR measuring apparatus comprises a signal energy measuring unit, an interference energy measuring unit and a SIR measuring unit. The signal energy measuring unit measures signal energy by synthesizing after coherently integrating and non-coherently integrating values that are obtained by correlating a received signal with pilot patterns equal to the pilot patterns of transmitted antenna signals, respectively. The interference energy measuring unit measures interference energy by coherently integrating and non-coherently integrating after correlating the received signal with another pattern that is orthogonal to the pilot patterns of the transmitted antenna signals but is not transmitted. The SIR measuring unit measures SIR by using the measured signal energy and the measured interference energy.

Methods, systems, and devices are described for wireless communications. A device may utilize enhanced roaming techniques to identify a candidate channel for roaming. In one example, a device determines whether a candidate channel is congested by calculating a congestion metric associated with traffic over the shared channel. In some examples, the congestion metric is calculated based at least in part on an amount of energy measured over the candidate. For instance, the calculated congestion metric can be an instantaneous congestion level measured during a CCA. The device may then determine whether to roam to the candidate channel based at least in part on the calculated congestion metric.