194 results about "Signal beam" patented technology

An electronic device may be mounted to a main body of a removable case. The case includes a cover that rotates between open and closed positions. The device may convey wireless data and / or a control signal with the removable case over radio-frequency connectors, near-field communications (NFC) coils, connector electrodes, and / or wired data connectors. The removable case may relay the wireless data between the electronic device and a communications satellite in space. The case may include a phased antenna array in the cover. In the open position, the cover may point the phased antenna array towards the sky. The removable case may include beamforming circuitry in the cover and coupled to the phased antenna array. The control signal may control the beamforming circuitry to produce, using the phased antenna array, a signal beam oriented towards the communications satellite.

The embodiment of the invention provides an optical detection device which comprises an imaging assembly and a photoelectric detection device, and the imaging assembly is used for forming an image on an image plane of a to-be-detected area of a wafer. And the photoelectric detection device is used for receiving images and is arranged at the image plane. The photoelectric detection device comprises a light beam separation assembly and a sensor assembly, the light beam separation assembly is used for dividing a continuous first light signal in an image into multiple beams of second light signals, and the light beam separation assembly comprises a microlens array. The sensor assembly is used for receiving multiple beams of second optical signals, and each pixel unit of each sensor in the sensor assembly is used for receiving one beam of second optical signal in the multiple beams of second optical signals. The sensor assembly comprises a single-pixel sensor, and the single-pixel sensor corresponds to one micro lens in the micro lens array; and / or, the sensor assembly comprises a multi-pixel sensor, the multi-pixel sensor corresponds to a plurality of microlenses in the microlens array, and spatial segmentation is beneficial to improving the signal-to-noise ratio.

Disclosed are systems, apparatuses, processes, and computer-readable media for wireless communications. For example, an example of a process includes transmitting, to a reconfigurable intelligent surface (RIS), a plurality of reference signal beams in a plurality of directions. The process may further include receiving, from the RIS, a plurality of reflection reference signal beams in the plurality of directions based on a plurality of backtracking reflection coefficients. The process may include measuring a signal strength of each reflection reference signal beam in each direction of the plurality of directions for each backtracking reflection coefficient of the plurality of backtracking reflection coefficients. The process may further include determining, basing on measuring the signal strength, a selected beam direction from the plurality of directions and a selected backtracking reflection coefficient of the plurality of backtracking reflection coefficients.

A method (1900) by a first radio node (205, 210) includes receiving (1902), from a second radio node (205, 210), beamforming information comprising at least one parameter related to at least one spatial property of at least one reference signal beam. In particular, the beamforming information related to the at least one spatial property may include at least one of a beam configuration, a spatial correlation between two or more reference signal beams, and / or a capability related to beamforming at the second radio node.

One example includes a quantum lidar system. The system includes a beam generator configured to generate a signal beam and an idler beam and a beam combiner configured to generate a combined optical beam comprising the signal beam and the idler beam. The system also includes a lidar transmitter configured to transmit the combined optical beam to a target and a lidar receiver configured to receive the combined optical beam and a reflected beam of the combined optical beam reflected from the target to generate lidar data associated with the target.

The invention provides a multi-signal beam-expanding hybrid transmission cabin-penetrating connector, and belongs to the technical field of data transmission, the multi-signal beam-expanding hybrid transmission cabin-penetrating connector comprises a disc shell, two compression nuts, a partition plate nut and an insulator assembly, the two compression nuts are fixed on the periphery of the disc shell in parallel, a fuse is arranged between the two compression nuts, and the partition plate nut is fixed on the periphery of the disc shell. The insulator assembly is arranged in the disc shell, the partition plate nut is located on the periphery of the insulator assembly, the insulator assembly is fixed through the combined action of a key groove in the right side in the disc shell and the partition plate nut on the left side, and a cavity of the disc shell is filled with glue for reinforcement. The insulator assembly comprises a plurality of contacts of different specifications, the insulator assembly is used for transmitting radio frequency coaxial signals, optical fiber signals and power signals, and the plurality of contacts of different specifications are arranged to be of two-end butt joint structures. According to the scheme, the integration level and the signal transmission efficiency of the cabin-penetrating connector are improved, and stable mixed transmission of various signals in the same connector is achieved.

A first network node (10, 400) is configured to be used in a wireless communication network. The first network node (10, 400) determines a modified configuration of reference signal beams of a serving cell of the first network node (10, 400). The first network node (10, 400) sends a first indication (14) to a second network node (20, 400). The first indication (14) comprises a configuration update message describing the modified configuration of reference signal beams of the serving cell.

A multi-beam charged particle beam system includes a detection unit configured for a dynamic compensation of charging effects of a sample. The detection unit comprises a relay optical system comprising an adaptive mirror array for keeping signal beams at the position of entrance apertures of lightguides od detection elements. Thereby, beam distortions induced by charging effects can be compensated. The disclosure can be applied to, for example, wafer inspection with multi-beam charged particle beam system.

Embodiments are directed to the association of concurrent tracks across multiple views for sensing objects. A sensing system that employs signal beams to scan paths across an object may be provided such that two or more sensors separately detect signals reflected by the object. Events may be determined based on the detected signals such that the events include pairs of events that correspond to pairs of sensors. Essential matrices may be generated based on the positions of each pair of sensors. The pairs of events associated with the pairs of sensors may be compared based on the essential matrices of the sensors. Scores for the pairs of events may be provided based on the comparison. If a score for a pair of events may be less than a threshold value, each event in the pair of events may be associated with a same location on the object.

An optical module includes a light receiving assembly and a first fiber optic adapter. The light receiving assembly includes a first lens group, a plurality of wavelength division demultiplexers and at least one light receiving component. The first lens group is configured to split optical signals transmitted to the first cavity body for a first time according to a wavelength to obtain a first optical signal beam and a second optical signal beam. The plurality of wavelength division demultiplexers include a first wavelength division demultiplexer and a second wavelength division demultiplexer. The first wavelength division demultiplexer is configured to split the first optical signal beam for a second time according to a wavelength. The second wavelength division demultiplexer is configured to split the second optical signal beam for a second time according to a wavelength. The light receiving component includes a plurality of light receiving chips.

Provided in the present application are a beam scheduling method and apparatus for satellite communication. The method comprises: on the basis of whether there are uplink and downlink transmissions on each beam position, determining whether each beam position is occupied by a signaling beam; and scheduling the signaling beam within the current scheduling period to a beam position which is not occupied by the signaling beam. In the beam scheduling method and apparatus for satellite communication that are provided in the present application, on the basis of whether a beam position is occupied by a signaling beam, a beam position selection mechanism is determined, such that flexible and dynamic scheduling of beam resources can be implemented, so as to avoid the situation where some beam positions occupy certain scheduling slots despite having no traffic or a small traffic volume, while some beam positions cannot use idle slot resources despite having a larger traffic volume, such that the flexibility of beam scheduling and the utilization efficiency of beam resources are improved.

Embodiments are directed to the association of concurrent tracks using graph crossings. Signal beams may be employed to scan paths across an object such that sensors separately detect signals from the signal beams reflected by the object. Crossing points may be determined based on a plurality of trajectories that intersect each other during the scan of the object. Graphs may be generated based on the portion of trajectories and the crossing points such that each edge in the graphs corresponds to a crossing point and such that each node in the one or more graphs corresponds to a trajectory. The graphs may be compared to determine one or more matched graphs that may share a common topology. Common trajectories may be determined based on the matched graphs such that each common trajectory may be associated with a same path across the object and a separate sensor.

The invention provides a beam scheduling method and device for satellite communication. The method comprises the following steps: determining whether each beam position is occupied by a signaling beam according to whether uplink and downlink transmission exists on each beam position; and scheduling the signaling beam in the current scheduling period to a beam position which is not occupied by the signaling beam. According to the beam scheduling method and device for satellite communication provided by the invention, a selection mechanism of the beam position is determined according to whether the beam position is occupied by the signaling beam, flexible and dynamic scheduling of beam resources can be realized, and the situation that some beam positions do not have services or still occupy certain scheduling time slots when the service volume is very small is avoided; and the flexibility of beam scheduling and the utilization efficiency of beam resources are improved under the condition that some beam positions cannot use idle time slot resources although the service volume is relatively large.

A hierarchical beam-deployment method has the step of transmitting signal beams of multiple levels towards a service area, each signal beam comprising a synchronization signal and physical broadcast channel block (SSB); the footprint of a higher-level beam has a beam-width smaller than that of a lower-level beam, and is at least partially overlapping with the footprint of the lower-level beam. Accordingly, a beam-search method has the steps of detecting a first SSB of a first signal beam; determining, based on the first SSB, a presence of one or more second signal beams having one or more footprints at least partially overlapping with a footprint of the first signal beam; detecting one or more second SSBs of the one or more second signal beams; and selecting at least one of the first and second SSBs for performing an initial-access procedure based on the selected SSB.

A first wanted signal beam is formed at a multi-element antenna array to receive a first wanted signal having a first and second sub-carrier, each having known transmitted modulation, and the subcarriers are combined using a first linear relationship determined to reduce a component of the wanted signal. A first orthogonal beam is formed that is orthogonal to the first wanted signal beam, and a first subcarrier received in the first orthogonal beam corresponding in frequency to the first subcarrier of the first wanted signal is combined, using the first linear relationship, with a second subcarrier received in the first orthogonal beam corresponding in frequency to the second subcarrier of the first wanted signal. The linear combinations are processed to generate weights, which are applied to interference received in the first orthogonal beam to produce weighted interference which is combined with the received first wanted signal to reduce interference.

Systems and methods for non-contact arterial blood pressure waveform monitoring based on machine learning are provided. The method includes transmitting a millimeter wave signal waveform with a millimeter wave radar and receiving a reflected signal from the chest of a subject; extracting complex value millimeter wave IQ data from the received reflection signal; guiding the complex valued millimeter wave IQ data with a beamforming-based data enhancement module to form a target signal beam; and estimating an arterial blood pressure waveform from the target signal beam using a millimeter wave-arterial blood pressure waveform converter. During a training phase, the beamforming-based data enhancement module is configured to generate millimeter wave signal beam data from different angles for training the millimeter wave-arterial blood pressure waveform transducer; and a cross-modal knowledge migration module is utilized to generate a teacher model so as to jointly supervise training of the millimeter wave-arterial blood pressure waveform converter.

The invention provides a laser communication device for rapid link establishment and networking and a satellite internet constellation. The device utilizes the wavelength division multiplexing unit and the pre-aiming unit to realize beam combination of receiving and transmitting optical path signals so as to improve the coaxiality of receiving and transmitting branches; an optical fiber displacement device arranged on the transmitting-receiving lens is used for adjusting the relative position of the beam combining optical fiber and the focal point of the transmitting-receiving lens, and continuous beam changing of a transmitted light path signal within the divergence angle range of 55-1000 microrad is achieved; and a position sensing unit is matched to focus a receiving light path signal, so that a 0.2-1-degree receiving light path continuous field of view is realized. Through 10000 times of offset error estimation simulation, the coverage rate of an uncertain area to a target light spot reaches 99.32%, and about 1mrad beam change can be realized, so that minute-level capture efficiency is realized under the condition of the continuous field of view.

Techniques for wireless communication are disclosed. In an aspect, a method of wireless communication performed by a user equipment (UE) includes receiving positioning reference signal (PRS) configuration information for a PRS signal transmitted by at least one transmit / receive point (TRP), the PRS configuration information including beam information associated with the PRS signal. The method further includes determining a subset of the PRS signals based at least on beam information associated with the PRS signals. The method also includes monitoring a subset of the PRS signals and not monitoring PRS signals not in the subset. The UE may conserve power by monitoring a relevant subset of PRS signals and by not monitoring PRS signals not in the subset. The techniques may be applied to a TRP in a terrestrial network, a TRP in a non-terrestrial network, or both.

A laser ranging method and device using the autocorrelation characteristics of light intensity random noise, the method comprising: step S1, a wide spectrum light source emits laser light, which is divided into a first light beam and a second light beam by a ranging probe, and the first light beam is defined as a reference light beam; step S2, the second light beam is emitted to a target object to be measured, and a light beam reflected by the target object to be measured is obtained and defined as a signal light beam; step S3, the reference light beam and the signal light beam are coupled to form a coupled light beam; and step S4, the coupled light beam is processed to obtain absolute distance information of the target object to be measured to the light emitting end surface of the probe. The device obtains absolute distance information of the target object to be measured based on light source intensity noise. The present application has the advantages of high time resolution and high precision measurement.

A mobile apparatus for capturing an object space includes a frame and at least one single scanner mounted on the frame and a multiple scanner mounted on the frame above the single scanner. This multiple scanner has a plurality of emission units integrated in one component, a receiver for detecting reflected rays, and a scanning device for changing the emission directions of the signal beams of the emission units. Furthermore, the mobile apparatus has an evaluation device which is designed to generate and output in real time, at least from the reflected rays detected by the receiver, a graphical representation of those areas of the object space through which the mobile apparatus can be moved and / or has been moved. Finally, the mobile apparatus has a data interface designed to output data to a memory device for post-processing. A corresponding method for capturing an object space is also disclosed.

The embodiment of the invention provides an optical modulator, a wavelength selection switch, a port-level optical switch, an optical cross connection and an optical communication system, and aims to reduce insertion loss in an optical switching process. In the optical modulator provided by the invention, an included angle is formed between a first surface of a first substrate and a second surface of a second substrate, and a liquid crystal layer is located between the first substrate and the second substrate, so that an included angle is formed between an incident light beam of a signal light beam irradiating the optical modulator and an emergent light beam emitted from the optical modulator; the first substrate is provided with a first electrode layer, the second substrate is provided with a second electrode layer, the refractive index of the liquid crystal layer is changed by adjusting the first electrode layer and the second electrode layer to generate electric fields with different intensities, the included angle between the incident light beam and the emergent light beam is further adjusted, and the signal light beam is emitted to a target output port; deflection of the signal light beams is achieved through the refraction principle, the insertion loss of the signal light beams in the optical modulator is reduced, and then the insertion loss in the optical switching process is reduced.

This invention provides a real-time ranging and positioning system and method based on an extended light source and a fast coincidence measurement algorithm. The real-time ranging system includes: an entangled light source, a first single-photon detector, a time-to-digital converter, a coincidence measurement module, a quantum transceiver module, and a corner mirror. The coincidence measurement module performs real-time coincidence measurement using a fast coincidence measurement algorithm based on the arrival time sequence of the signal beam and the arrival time sequence of the reference beam, obtaining the time difference corresponding to the peak position of the coincidence measurement curve. The distance between the target point and the real-time ranging system is then obtained based on this time difference. Furthermore, this invention splits the signal beam emitted by the light source into multiple signal sub-beams to form an extended light source, effectively reducing the cost of the measurement device while still satisfying quantum positioning measurement requirements.

The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. The disclosure provides a transmitting method, receiving method and a corresponding device for beam information. The method comprises receiving, from a base station, information related to signal beams related to a first mode of the base station; and performing an operation related to communication based on the information related to the signal beams related to the first mode of the base station.

The invention discloses an all-fiber extended-range frequency domain interference ranging method and device based on optical microwave mapping, the method is used for measuring the distance information of a to-be-measured target, and the method comprises the steps: S1, transmitting a broadband spectrum to a ranging probe, and enabling the ranging probe to divide the broadband spectrum into a reference light beam and a signal light beam; s2, the distance measuring probe sends a signal light beam to a to-be-measured target, receives the reflected signal light beam, and couples the reflected signal light beam with the reference light beam to form an interference signal; s3, analyzing the interference signal to obtain distance information with the to-be-measured target; the device is used for measuring the distance of a to-be-measured target. The invention has the advantages of simple structure, long measuring range and micron-order precision.

A communication terminal may include interwoven high and low band phased array antennas that form signal beams in respective bands. The high band antenna may have center-grounded folded patch radiators. The low band antenna may have folded patch radiators that each surrounds a different respective center-grounded folded patch radiator of the high band antenna. The low and high band antennas may be mounted to ground traces on an antenna board. The antenna board may be mounted to a feeding board. Beamforming circuitry for the low and high band antennas may be disposed on the feeding board. The patch radiators of the low and high band antennas may be formed from free-standing folded sheet metal. The folded sheet metal may be mounted to the antenna board by conductive standoffs. The conductive standoffs may be used to feed the antenna radiators and / or to short the antenna radiators to the ground trace.

The application discloses a method and device of laser ranging technology based on cross-correlation principle, which are used for absolute distance measurement of a target object. The intensity information of a reference light beam and a signal light beam after photoelectric conversion is cross-correlated and demodulated to obtain the transmission time difference between the end surface of a ranging probe and the target surface and the reference light beam, and then the absolute distance is calculated. The application has the advantages of large range, high precision and high frequency response in absolute distance measurement.

The invention discloses a 3D waveguide type multi-core optical fiber link monitor which comprises an optical chip platform with n layers of stacked waveguide structures and a photoelectric detector, n is larger than or equal to 2, and the number n of waveguide layers of the optical chip platform is equal to the number of layers of connected multi-core optical fibers. The cross section distribution of waveguides in the optical chip platform and the cross section distribution of fiber cores of the multi-core optical fiber are the same and are in one-to-one correspondence; a waveguide channel corresponding to each fiber core of the multi-core optical fiber in the optical chip platform comprises an optical fiber signal coupling fan-out module, an optical signal beam splitting module, an optical signal monitoring module and a multi-core optical fiber signal coupling fan-in module which are connected in sequence; after an optical signal of a multi-core optical fiber transmitting end is coupled by the fan-out module, a small part of the signal is separated by the beam splitting module through a waveguide coupling effect and is used for monitoring, and most of the signal is transmitted back to a transmission link through the fan-in module; and the monitoring module realizes real-time detection through a photoelectric detector. According to the invention, no extra optical fiber fan-in / fan-out module is needed, the insertion loss is low, and the device is not sensitive to polarization.

The invention relates to an optical position measuring device for detecting the relative position of two scales, which can be moved relative to one another in a plurality of measurement directions and are arranged in different planes and cross one another. The two scales each have a measurement division. The longitudinal extension of the scales is oriented parallel to a first and a second measurement direction. A third measurement direction is perpendicular to the first and second measurement direction. An illumination beam emitted by a light source is split at the first scale into at least two partial beams. The partial beams subsequently impinge on a second scale which is arranged obliquely with respect to the horizontal movement plane about its longitudinal extension, the partial beams undergo a back reflection in the direction of the first scale at the second scale. The partial beams then impinge again on the first scale and are combined again, a signal beam resulting therefrom propagates in the direction of a detection unit. Via the detection unit a plurality of phase-shifted scanning signals can be generated about the relative movement of the scales in the third measurement direction and in the first or second measurement direction.

A processor-implemented method for multimodal beam management, implemented by a network device, includes: receiving an input stream from one or more sensors by the network device; generating a digital twin modeling the environment of an area observed by the one or more sensors; the digital twin including one or more objects detected based on the input stream; and managing wireless communication signal beams, at least in part, based on the digital twin for communication with at least one user equipment (UE) in the area observed by the one or more sensors.

A focal plane array system includes a plurality of pixels configured to output a first signal light beam and to receive a second signal light beam reflected from a target object. Each of the plurality of pixels includes a transmitter, a receiver, and an interference light beam controller that includes a splitter disposed on an emission path of the first signal light beam to split a portion of the first signal light beam into an interference light beam, a receiving coupler disposed on a receiving path of the second signal light beam reflected from the target object, and a waveguide configured to transport the interference light beam split from the splitter to the receiving coupler. The receiving coupler is configured to transport the second signal light beam reflected from the target object to the receiver and to combine the interference light beam with the second signal light beam.