34 results about "Time gate" patented technology

A method and systems for taking downhole measurements. The method may include selecting a pulsing scheme for taking one or more measurements using a pulsed neutron logging tool, selecting a neutron burst width for the pulsing scheme based at least in part on a neutron tube utilized by the pulsed neutron logging tool to form at least in part a neutron burst train, and selecting a decay window in which the one or more measurements are performed by the pulsed neutron logging tool. The method may further include selecting a starting time for a late gate in which the one or measurements are taken, disposing the pulsed neutron logging tool into a borehole, performing the neutron burst train with the pulsed neutron logging tool, and performing the one or more measurements with the pulsed neutron logging tool during the late gate.

The invention discloses a spherical multi-dimensional rotation angle measurement time grating sensor and an installation structure thereof. The time grating sensor comprises a stator base body and a rotor base body. The stator base body is in a spherical shell shape, the rotor base body is in a spherical shell shape and located in the spherical shell of the stator base body, and a gap is reserved between the surface of the rotor base body and the inner surface of the stator base body so that the rotor base body can be suspended and concentric with the stator base body. Six excitation units with the same shape and size are uniformly distributed on the inner surface of the stator base body at intervals; and the centers of the six excitation units are positioned in the centers of the six surfaces of the cube externally tangent to the inner surface of the stator base body. Eight sensing units with the same shape and size are uniformly distributed on the surface of the rotor base body at intervals; the eight sensing units are symmetrically distributed on eight quadrants of a space rectangular coordinate system with the center of the rotor base body as the original point. According to the invention, high-precision spherical space multi-dimensional rotation angle measurement can be realized, the structure is simple, the decoupling is thorough, and the anti-interference capability is strong.

The technology relates to enhanced time gated imaging in a manner that provides high dynamic range (HDR) functionality to a time gated pixel. An overflow path is provided for an integration node of a time-gated pixel, so that when the integration node saturates the excess charge flows to a low gain capacitor, creating readout signals from the integration node and the low gain capacitor, in order to obtain an HDR signal. A method includes modulating reset and transfer signals for an image sensor to selectively cause time-gated charge to accumulate in a photosensitive region of the image sensor, where the time-gated charge corresponds to a selected distance range. Then the charge is transferred to a charge storage region, and a saturated portion of the accumulated charge in stored a capacitor of the image sensor element. An HDR image is constructed from read-out of the charge storage region and the capacitor.

The technology relates to enhanced time gated imaging in a manner that provides high dynamic range (HDR) functionality to a time gated pixel. An overflow path is provided for an integration node of a time-gated pixel, so that when the integration node saturates the excess charge flows to a low gain capacitor, creating readout signals from the integration node and the low gain capacitor, in order to obtain an HDR signal. A method includes modulating reset and transfer signals for an image sensor to selectively cause time-gated charge to accumulate in a photosensitive region of the image sensor, where the time-gated charge corresponds to a selected distance range. Then the charge is transferred to a charge storage region, and a saturated portion of the accumulated charge in stored a capacitor of the image sensor element. An HDR image is constructed from read-out of the charge storage region and the capacitor.

A method and systems for taking downhole measurements. The method may include selecting a pulsing scheme for taking one or more measurements using a pulsed neutron logging tool, selecting a neutron burst width for the pulsing scheme based at least in part on a neutron tube utilized by the pulsed neutron logging tool to form at least in part a neutron burst train, and selecting a decay window in which the one or more measurements are performed by the pulsed neutron logging tool. The method may further include selecting a starting time for a late gate in which the one or measurements are taken, disposing the pulsed neutron logging tool into a borehole, performing the neutron burst train with the pulsed neutron logging tool, and performing the one or more measurements with the pulsed neutron logging tool during the late gate.

The application discloses a kind of space-time graph neural network water quality prediction methods based on DEM mapping, comprising: obtaining the DEM data of target area and processing, extract the river topological structure in target area, and then build the graph structure reflecting the spatial relationship of water quality monitoring site;Obtain water quality data and pretreatment, eliminate the influence of missing value and abnormal value;Water quality prediction model is constructed based on STGCN model, and STGCN model includes multiple spatiotemporal convolution blocks, each spatiotemporal convolution block includes time gate convolution layer, spatial graph convolution layer and time gate convolution layer arranged in sequence;Based on the water quality prediction model constructed to detect the water quality to be detected.The application captures the spatial dependence relationship between water quality monitoring sites, improves the accuracy of water quality prediction. By using DEM data to extract river network topological structure, a graph structure that can truly reflect the hydrological connection between monitoring sites is constructed, and the accuracy of water quality prediction is effectively improved by effectively capturing the spatiotemporal characteristics of the STGCN model.

1. Name of the Design Product: Amusement Equipment (Time Gate). 2. Use of the Design Product: For amusement equipment. 3. Design Key Points of the Design Product: Lies in the shape. 4. Picture or Photograph that Best Illustrates the Design Key Points: Perspective View 1.

The inventors have developed methods and systems to address the above challenges using entangled photons with multiple colors transmitted with a classical data stream as a technique to detect eavesdropping on the data stream and to prevent reverse engineering for demodulating the entangled bits from the data stream. In some embodiments, a time gate is used to interleave the quantum and classic signals to provide quantum encryption of fiber optic communication protocols.

A technique for dual-comb high-resolution distributed sensing that employs a “gating” feature to the probe comb in the time-domain. Operationally, probe comb signals are gated as blocks and sent into a optical fiber with adjusted time intervals. In a signal processing stage, the block signals are merged as a complete analysis window such that every spatial resolution can be reconstructed. By sliding the window, the entire optical fiber can advantageously be monitored. Our technique advantageously breaks a sensing distance bottleneck found in conventional, dual-comb distributed fiber sensing, thereby providing high-spatial resolution sensing over a long distance.

Aspects of the technology described herein relate to improved semiconductor-based image sensor designs. In some embodiments, an integrated circuit may comprise a photodetection region and a drain region electrically coupled to the photodetection region, and the photodetection region may be configured to induce an intrinsic electric field in a direction from the photodetection region to the drain region(s). In some embodiments, an integrated circuit may comprise a plurality of pixels and a control circuit configured to control a transfer of charge carriers in a plurality of time-binning pixels. In some embodiments, an optical component for optical rejection is provided in between a waveguide and the time-binning pixel and configured to block at least some excitation photons in a pulsed light stream from arriving at the photodetection region. In some embodiments, the time-binning pixel does not comprise a time-gated transistor for electronic rejection configured to block a transfer of charge carriers associated with excitation photons in the pulsed light stream.

A quantum key distribution system may include a transceiver including a state randomizer to impart a random state transformation to one or more qubits of a generated faint pulse and a quantum bit encoder to reflect the faint pulse back to the transceiver with one or more encoded bits. The transceiver may receive a return pulse through the communication channel, where the state randomizer reverses the random state transformation. The transceiver may include a set of two detectors to measure the return pulse at time-gated timeslots associated with possible paths of the return pulse. Reception of the faint pulse from the quantum bit encoder as the return pulse triggers a detector in one or more known time-gated timeslots determined based on the random state transformation, while reception of a faked-state pulse results in a non-zero probability of triggering of a detector in a different time-gated timeslot.

A semiconductor device comprises an insulating region surrounding an active area having a channel direction and a transverse direction that is transverse to the channel direction. A source region and a drain region are disposed in the active area, and are spaced apart along the channel direction. A channel is disposed in the active area and is interposed between the source region and the drain region. The channel comprises a two-dimensional electron gas (2DEG). A gate line is oriented along the transverse direction and is disposed on the channel and has a gate width in the channel direction. The gate line comprises gate material. A gate line terminus is disposed at each end of the gate line. Each gate line terminus comprises the gate material. Each gate line terminus has a width in the channel direction that is at least 1.2 time the gate width.

The inventors have developed methods and systems to address the above challenges using entangled photons with multiple colors transmitted with a classical data stream as a technique to detect eavesdropping on the data stream and to prevent reverse engineering for demodulating the entangled bits from the data stream. In some embodiments, a time gate is used to interleave the quantum and classic signals to provide quantum encryption of fiber optic communication protocols.

The invention discloses a method for automatically extracting inelastic gamma rays in pulsed neutron logging, and belongs to the technical field of oil field logging. The method comprises the following steps: a, carrying out pulsed neutron logging to obtain a gamma ray energy spectrum during a time gate period; b, deducting a gamma ray energy spectrum in an early capture time gate period and a gamma ray energy spectrum in a late capture time gate period according to a certain proportion from the gamma ray energy spectrum in the pulse time gate period, and fitting to obtain optimal coefficients under different porosity conditions; and c, establishing a relationship between the coefficient and the counting rate measured by the detector, so that the inelastic spectrum counting rate can be obtained as long as the counting rate of the detector is obtained. According to the method, the epithermal neutron capture is considered, that is, the capture spectrum is considered to be epithermal neutron capture and thermal neutron capture, so that the net inelastic gamma rays are extracted more accurately, and a good foundation is laid for realizing a high-precision controllable source density logging method.

The present application provides a control method, comprising: configuring and issuing a time gate list, wherein the time gate list comprises at least one deterministic queue and a plurality of time slices, in each deterministic queue, gates corresponding to periodic time slices of the deterministic queue are open, gates corresponding to periodic time slices of other deterministic queues are closed, gates corresponding to free time slices are open, the periodic time slices of the deterministic queue are time slices corresponding to the times when the deterministic queue periodically forwards data packets of a deterministic service flow, and the free time slices are time slices other than the periodic time slices of each deterministic queue. The present invention further provides a communication method, a controller, a node device, and a computer readable medium.

The invention discloses a luminescence detection system and a detection method thereof, and relates to the technical field of luminescence detection systems. Comprising a processor, a radiation device, a magnetic field generation device, a detection device and a time gating signal generator, wherein the time gating signal generator is electrically connected with the radiation device and the detection device respectively; the processor sends an instruction to the radiation device, the time gating signal generator and the magnetic field generation device; the time gating signal generator sends an instruction to the detection device for processing a time gating signal; and the detection device transmits the electric signal to the processor. The detection system disclosed by the invention can be used for detecting various luminous samples and is not influenced by the problems of background interference, signal quenching, photobleaching, sample compatibility, instrument complexity and the like.

The invention relates to a gate structure and a preparation method thereof, and a semiconductor device, and the method comprises the steps: providing a substrate which comprises a semiconductor layer; the semiconductor layer has an initial width and an initial surface quality; n target process steps are executed to form a gate conductive layer, and the step of executing the ith target process step comprises the steps that an oxidation process is adopted to form an ith sacrificial oxide layer covering the outer surface of the semiconductor layer; at least part of the ith sacrificial oxide layer is removed, i belongs to [2, N], and N belongs to a positive integer; after N times of target process steps, the remaining semiconductor layer is used for forming a gate conductive layer; the gate conductive layer has a target width and a target surface quality; and forming an oxidation protection layer covering the outer surface of the gate conductive layer. According to the method, the original one-time Gate oxidation is replaced by two or more times of Gate oxidation, so that the damage caused by the poly gate in the etching process can be more effectively repaired, and the CD of the poly gate can be controlled to a certain extent.

A spectral combiner is configured to spectrally combine a pulsed signal at a first wavelength and a continuous wave (CW) signal at a second wavelength. A time gate has a signal input configured to receive a first multiplexed input signal from the first WDM, a radio frequency (RF) input configured to receive a RF control signal, a bias input configured to receive a direct current (DC) bias signal, and an output. A spectral decomposer is configured to demultiplex a second multiplexed output signal from the time gate's output into a first demultiplexed signal at the first wavelength and a second demultiplexed signal at the second wavelength. The DC bias signal is based on the second demultiplexed signal.

A spectral combiner is configured to spectrally combine a pulsed signal at a first wavelength and a continuous wave (CW) signal at a second wavelength. A time gate has a signal input configured to receive a first multiplexed input signal from the first WDM, a radio frequency (RF) input configured to receive a RF control signal, a bias input configured to receive a direct current (DC) bias signal, and an output. A spectral decomposer is configured to demultiplex a second multiplexed output signal from the time gate's output into a first demultiplexed signal at the first wavelength and a second demultiplexed signal at the second wavelength. The DC bias signal is based on the second demultiplexed signal.

The invention relates to a time gated pixel with HDR capability. The present technology relates to time-gated imaging enhanced in a manner that provides high dynamic range (HDR) functionality to time-gated pixels. An overflow path is provided for an accumulation node of a time gated pixel such that when the accumulation node is saturated, excess charge flows to a low gain capacitor, thereby generating a readout signal from the accumulation node and the low gain capacitor in order to obtain an HDR signal. A method includes modulating a reset signal and a transfer signal for an image sensor to selectively accumulate a time-gated charge in a photosensitive region of the image sensor, wherein the time-gated charge corresponds to a selected range of distances. The charge is then transferred to a charge storage region, and a saturated portion of the accumulated charge is stored in a capacitor of the image sensor element. An HDR image is constructed from readout of the charge storage region and the capacitor.

1. The name of this design product: Packaging Box (Time Gate). 2. Purpose of this design product: used for packaging products. 3. The key design point of this design product lies in the combination of shape and pattern. 4. The picture or photo that best illustrates the design points: three-dimensional picture.

The technology relates to enhanced time-gated imaging in a manner that provides high dynamic range (HDR) functionality to a time-gated pixel. An overflow path is provided for an integration node of a time-gated pixel such that when the integration node saturates, the excess charge flows to a low-gain capacitor, generating readout signals from the integration node and the low-gain capacitor to obtain an HDR signal. One method includes modulating reset and transfer signals for an image sensor to selectively cause a time-gated charge to accumulate in a photosensitive region of the image sensor, the time-gated charge corresponding to a selected distance range.The charge is then transferred to a charge storage area, and a saturated portion of the accumulated charge is stored in a capacitor of the image sensor element. An HDR image is constructed from the readout of the charge storage area and the capacitor.

To solve a problem of a trade-off relation between distance resolution and a frame rate in a distance measuring method of a Time-gate system.SOLUTION: A photoelectric conversion device includes: a pixel array in which a plurality of pixels each including a photoelectric conversion element is arranged; a first micro frame reading unit for acquiring a first micro frame; a second micro frame reading unit for acquiring a second micro frame; a first micro frame addition unit for synthesizing the first micro frame to generate a first sub frame; and a second micro frame addition unit for synthesizing the second micro frame to generate a second sub frame. A first exposure period in which a signal constituting the first micro frame is generated, is controlled by a first control signal and a second exposure period in which a signal constituting the second micro frame is generated, is controlled by a second control signal. In one micro frame acquisition period, the first exposure period differs from the second exposure period.SELECTED DRAWING: Figure 11

The invention discloses a signal processing method of a time grating displacement sensor. The signal processing method comprises a position signal modulation method, wherein a first excitation signal with the angular frequency of w is input into the time grating displacement sensor to modulate a position signal; the position signal demodulation method comprises the following steps: demodulating a signal output by the time grating displacement sensor to convert a position signal into a detectable electric signal; a high-frequency signal re-modulation method: performing frequency mixing and re-modulation processing on the demodulated electric signal by adopting a second excitation signal with the angular frequency of nw; and the high-resolution displacement value demodulation method comprises the step of carrying out demodulation processing on the signals subjected to frequency mixing and modulation processing. According to the method, the problems that the displacement data is good in stability but slow in response under low-frequency excitation and the displacement data is high in updating rate and fast in response but poor in stability under high-frequency excitation can be solved at the same time; displacement data processing of the time grating displacement sensor with good stability, high updating rate and high resolution can be realized.

An imaging circuit arrangement is provided that includes an array of image pixels, each image pixel in the array including a single-photon avalanche diode (SPAD) coupled to a plurality of counters configured to obtain an in-pixel histogram, and a time-gate driver circuit arrangement configured to output a plurality of non-overlapping time-gate pulses to the plurality of counters. Each image pixel may further include a pulse generator having an input coupled to the SPAD. Each counter may have a first input coupled to an output of the pulse generator and a second input configured to receive one of a plurality of time-gate signals. Each counter may further include an analog storage circuit comprising one or more capacitors.

The present application provides a control method, including: configuring and issuing a time gate control list. The time gate control list includes at least one deterministic queue and a plurality of time slices; and in each deterministic queue, a gate corresponding to a periodic time slice of the deterministic queue is open, gates corresponding to periodic time slices of other deterministic queues are closed, and a gate corresponding to a free time slice is open, with the periodic time slice of the deterministic queue being a time slice corresponding to a time when data packets of a deterministic service flow are periodically forwarded in the deterministic queue, and the free time slice being a time slice other than the periodic time slice of each deterministic queue. The present application further provides a communication method, a controller, a node device, a computer readable medium.

The application provides a large language model generation control method and system based on time conditioning fine-tuning, comprising the following steps: obtaining training text with time attributes, disassembling the training text into fact units, and labeling available time for each fact unit; for the same query, constructing multiple training samples under different historical time boundaries, wherein each training sample includes the query, a time boundary, a set of available facts under the time boundary, and a set of prohibited facts; encoding the time boundary into a time condition vector; inserting a trainable time gate adapter into a pre-trained large language model, the time gate adapter receiving the time condition vector and generating a gate coefficient for modulating the hidden representation of the large language model. This method does not rely on a single prompt template, does not require permanent deletion of model knowledge, and does not require additional secondary review in each reasoning, thus having good stability, scalability and deployment efficiency.

The invention belongs to the technical field of interference, and relates to a method and a system for preventing an anti-interference system from generating accurate null through coherent signal superposition. The method comprises the following steps: arranging interference emission sources at at least two emission positions; all interference emission sources load interference signals; configuring the amplitude of the interference signal and a time threshold of phase switching; different amplitudes and initial phases are configured for interference signals of each interference emission source, so that the signals emitted by the plurality of interference sources form coherent superposition in space; selecting at least two interference emission sources to emit interference signals; and when the emission duration of the interference signals reaches the time threshold, the amplitude and the initial phase of each interference signal are readjusted. According to the method provided by the invention, the self-adaptive null generation mechanism of the anti-interference algorithm can be dynamically disturbed to form a false equivalent steering vector position; response is fast, and complex multi-station time synchronization and carrier phase calibration are not needed; the dependence on channels, computing power and synchronization resources is obviously reduced; and the adaptability is high.

Imaging circuitry is provided that includes an array of image pixels, where each image pixel in the array includes a single-photon avalanche diode (SPAD) coupled to a plurality of counters configured to obtain an in-pixel histogram and time gate driver circuitry configured to output a plurality of non-overlapping time gate pulses to the plurality of counters. Each image pixel can further include a pulse generator having an input coupled to the SPAD. Each of the counters can have a first input coupled to an output of the pulse generator and a second input configured to receive a respective one of a plurality of time gate signals. Each of the counters can further include an analog memory circuit having one or more capacitors.

A method for Quantum Communication, including the steps: obtaining, by a detector, a base signal, wherein the base signal includes an indication of a background optical noise of a communication channel; determining, based on the obtained base signal, a width of a time gate value; applying to the detector the determined width of time gate; and obtaining a QKD signal including QKD signal pulses sent through the communication channel by applying the time gate having the determined width for filtering the background optical noise. A corresponding optical receiver, QKD pulse stream and QKD system for quantum communication are also provided.