67 results about "Common path" patented technology

The present invention belongs to the technical field of LiDARs, and particularly relates to a system and method for synchronous detection of atmospheric data in the same path. The detection system comprises a transmitting unit, a receiving unit and a data processing unit, wherein the transmitting unit comprises a plurality of laser devices, and is used for synchronously transmitting laser having different wavelengths in a common path; the receiving unit comprises a receiving telescope, which is symmetrically provided with a plurality of sub-apertures used for receiving echo signals that are generated after the laser having different wavelengths interacts with the atmosphere; and the data processing unit is used for calculating atmospheric data parameters by means of the echo signals. By means of the present invention, synchronous detection of a plurality of atmospheric data parameters in the same path can be implemented.

System and methods for optical coherence tomography. The systems may include a source of optical radiation, an optical fiber, a detector, an interface medium, a mirror in the embedding medium, and a processor. The optical fiber may provide a common path for optical radiation reflected from a reference and a target. The detector may receive the optical radiation reflected from the reference and the target. The interface medium may be at the reference interface and in optical contact with the distal end of the optical fiber. The mirror may include a silicon die having a reflective coating. The processor may generate an image of the target based upon the optical radiation received by the detector.

Devices and methods related to wideband multiplexer for radio-frequency (RF) applications. In some embodiments, a multiplexer may include a common path configured to receive a plurality of RF signals. The multiplexer may further include a first path having an output coupled to the common path and configured to provide a band-pass response for a frequency band BX. The multiplexer may further include a second path having an output coupled to the common path such that RF signals in the first and second paths are combined and routed through the common path. The second path may be configured to provide a band-stop response for the frequency band BX such that the common path includes a wideband response that includes the frequency band BX and one or more other frequency bands.

To provide a high frequency module with reduced transmission loss for signals in multiple bands.SOLUTION: A high frequency module 1 includes a switch 11 having a selection terminal 11b connected to an antenna 2a, a selection terminal 11c connected to an antenna 2b, and a common terminal 11a, a switch 12 having selection terminals 12a, 12b and a common terminal 12f, filters 41 and 42, an inductor 21 connected to a common path Pc connecting the common terminals 11a and 12f, an inductor 31 connected to a signal path P1 connecting the selection terminal 12a and the filter 41, and an inductor 32 connected to a signal path P2 connecting the selection terminal 12b and the filter 42, and a distance D31 between the inductor 21 and the inductor 31 is smaller than a distance D32 between the inductor 21 and the inductor 32.SELECTED DRAWING: Figure 2

The invention discloses a wheelchair path planning method based on a grid map and an eye-controlled wheelchair navigation system. Belongs to the technical field of intelligent path planning and particularly relates to the technical field of wheelchair path planning based on a grid map. The method overcomes the defects that according to an existing common path planning method, when the road condition is complex, the path planning quality is low, and the path is too close to an obstacle. An original cost function is formed by respectively weighting existing path cost, heuristic cost and safety cost, the method provides a dynamic weighting strategy, and comprises the following steps: firstly, weighting a w2 heuristic cost weight according to a current distance; specifically, in the initial stage of searching, we hope to converge to the position of a target point as quickly as possible, namely, increase the weight value of w2, and decrease the value of w2 as the w2 approaches to the target point, and at the moment, better path quality is required to reach the target point. In addition, the value of w3 is dynamically adjusted according to the number of obstacles in a certain range where the current node is located, so that a safer path is exchanged in a complex environment.

The invention discloses a cable laying method, device and system, and the method comprises the steps: carrying out the cable path planning of a construction facility drawing according to a constraint condition specified by a rule selection instruction when the construction facility drawing and the rule selection instruction are received, and obtaining an initial laying scheme; rearranging the cables in the common path in the initial laying scheme according to the attributes of the cables to obtain an intermediate laying scheme; and if the intermediate laying scheme has the laying conflict, updating the intermediate laying scheme according to a preset optimization rule to obtain a target cable laying scheme. Therefore, by accurately selecting constraint conditions, deeply analyzing construction facility drawings and scientifically planning cable paths, a cable initial laying scheme better meeting actual construction requirements can be generated, meanwhile, laying conflicts and unreasonable layout are effectively avoided, and the safety and stability of subsequent cable laying are effectively improved.

The invention discloses a double-beam link vortex light correction system and method based on a model method, and the system comprises a double-beam common-path light path which is used for enabling vortex light and planar light to be transmitted in a common path, to pass through a turbulent flow or optical distortion region together, and to carry the same wavefront distortion information; the wavefront correction unit is used for dynamically compensating wavefront distortion information; the image acquisition and control unit is used for acquiring a corrected far-field light spot image after the planar light passes through a distortion area, and generating a driving instruction of the wavefront correction unit according to far-field light spot information to realize closed-loop control; and the topological charge detection module is used for carrying out topological charge detection on the corrected vortex light. According to the invention, indirect correction of the turbulence aberration of the common-path vortex light is realized, so that the correction efficiency and stability of the vortex light are improved.

The invention discloses a high-flux super-resolution laser direct writing device and method based on a metasurface, and the device employs a single metasurface to achieve the simultaneous shaping of an excitation light array and a suppression light array through wavelength polarization multiplexing, and replaces a complex independent shaping and beam combination light path in a conventional scheme. The system structure is greatly simplified, generated excitation light and suppression light are completely transmitted in a common path after passing through the DMD and are shaped by a single metasurface, the alignment error and relative drift problems of two light beams are eliminated, and the stability of the super-resolution processing effect is ensured.

Array single photon detection and two-dimensional camera common path fusion device and pixel matching method belong to the field of optical precision measurement. The array single photon detection and two-dimensional camera common path fusion device comprises a signal generator, a laser, an emitting optical system, a receiving optical system, a dichroic mirror, a two-dimensional camera, an array single photon detector, an array single photon counter and a data acquisition and processing fusion module. The method of the present application is as follows: the array single photon detection waveband pulsed laser and the two-dimensional camera sensing waveband ambient light returned by the target object are separated by using a common receiving optical path and a dichroic mirror to determine the pixel size and the number of the array single photon detector and the two-dimensional camera; the transmission light offset d is calculated according to the thickness of the dichroic mirror; the transmission light offset d is used as a correction factor to realize the pixel matching of the array single photon detection three-dimensional imaging and the two-dimensional camera image; the array single photon detection three-dimensional image and the two-dimensional camera image are superimposed, and the high resolution of the two-dimensional image is used to enrich the three-dimensional point cloud imaging information.

The invention discloses a long-distance telemetering phi-OFDR system based on common-diameter self-reference, belongs to the technical field of optics, and aims to solve the problem that the spatial resolution of an existing long-distance phi-OFDR system is seriously constrained by a sensing distance and is difficult to break through meter-scale distributed monitoring. A light source outputs linear frequency sweeping laser; the to-be-measured optical fiber is provided with a local reflection source array; a first port of the polarization-maintaining circulator is connected with the light source, a second port is connected with the transmission optical fiber, the transmission optical fiber is connected with the to-be-detected optical fiber, and the photoelectric detector, the data acquisition module and the calculation module are sequentially connected. In the first scheme, the end part of a to-be-detected optical fiber is connected with a Faraday rotating mirror, a third port of a polarization-maintaining circulator is connected with an input end of a polarization beam splitter, and two output ends of the polarization beam splitter are respectively connected with two photoelectric detectors. In the second scheme, all the optical fibers are polarization-maintaining optical fibers, the end of the optical fiber to be detected is connected with a reflector, and a third port of the polarization-maintaining circulator is connected with a photoelectric detector.

A method for clock tree synthesis and a computer-readable storage medium are disclosed. The method includes: acquiring a global clock tree of a target circuit, the global clock tree comprising multiple timing skew groups; determining sub-clock trees corresponding to each timing skew group based on each timing skew group, wherein each sub-clock tree includes a common path and several non-common paths branching from the common path, and the common and non-common paths each include several components; for each sub-clock tree: determining a drive object to be processed based on the common path of the sub-clock tree; calculating the load center location based on the several non-common paths; inserting a load center component at the load center location; when the components on the common path where the inserted load center component is located, and the components adjacent to the load center component in each of the non-common paths connected to the inserted load center component, do not meet preset design constraints, setting several signal conditioning units between the drive object to be processed and the inserted load center component.

The invention discloses a message processing method, which is applied to VPP protocol equipment, the VPP protocol equipment comprises a fast path node and a common path node, and the method comprises the following steps: when a target message is received, extracting target message information from the target message; determining a processing mode of the target message according to the target message information; if the processing mode is a fast processing mode, sending the target message to a fast path node, so that the fast path node calls a historical processing parameter corresponding to the target message from a historical message record, and processes the target message by using the historical processing parameter; and if the processing mode is a common processing mode, sending the target message to a common path node, so that the common path node processes the target message. According to the scheme, rapid and efficient message forwarding processing can be realized, and the message throughput performance in the VPP is ensured. The invention further provides a message processing device, electronic equipment and a computer readable storage medium which all have the above technical effects.

The present invention relates to a digital holographic microscopy device, and particularly to a common-path off-axis digital holographic microscopy device with adjustable shear amount. The present invention provides a common-path off-axis digital holographic microscopy device with adjustable shear amount that can realize the common path of the object beam and the reference beam and can effectively compensate for environmental interference on the two interfering beams. A common-path off-axis digital holographic microscopy device with adjustable shear amount includes a first fixing frame, a semiconductor laser light source, a beam expander and collimator, etc. The upper part of the first fixing frame is connected with the semiconductor laser light source, and the upper part of the first fixing frame is connected with the beam expander and collimator. The light source emitted by the semiconductor laser light source can pass through the beam expander and collimator, and the beam expander and collimator diffuses the light source into two light sources, and people can adjust the refraction angle of the two light sources by manually adjusting the position of the isosceles triangular prism. In this way, the common path of the object beam and the reference beam can be realized, and environmental interference on the two interfering beams can be effectively compensated.

A subsea inter-array cable layout comprises a series of two or more discrete cable sections 40 extending in longitudinal succession along a common path 42. Each cable section 40 comprises at least one

The application discloses a liquid refractive index sensing system and method based on an optical waveguide structure and weak measurement. The application comprises an SLD light source, a Gaussian filter, a polarizer I, a polarizer II, an optical waveguide, a quarter-wave plate I, a quarter-wave plate II and a spectrometer. The SLD light source emits laser with a center wavelength of 830 nm, and the laser is pre-selected by the front selection polarizer after passing through the Gaussian filter. The light is emitted after multiple total internal reflections on the surface of the waveguide of the liquid to be measured, the phase of the p and s polarizations of the emitted light is adjusted by the wave plate, the light is post-selected by the post-selection polarizer, the emitted light is received by the spectrometer and the center wavelength is analyzed, and finally the refractive index of the liquid to be measured is calculated according to the center wavelength displacement by the computer. The application also provides a liquid refractive index sensing method based on an optical waveguide structure and weak measurement. The application realizes straight-line common path and multiple reflections through the optical waveguide, and has higher stability and sensitivity than traditional measurement methods.

The application discloses a service transmission method, an electronic device, a storage medium and a program product, and belongs to the technical field of automatic switching optical networks. A service transmission method comprises the following steps: based on a networking structure, a common path, a branch path and a branch station for transmitting a target service from a target source station to multiple sink stations are acquired, wherein the branch station is a starting station of the branch path; in response to transmitting the target service, the target service is transmitted from the target source station to the branch station corresponding to each sink station through the common path, so that the branch station transmits the target service to each sink station through the branch path corresponding to each sink station.

A wafer placement table 10 is provided with: a ceramic plate 20 having at least a wafer placement section 22 on the upper surface thereof; a cooling plate (30) that is joined to the lower surface of the ceramic plate (20) and that has a refrigerant flow path (32); gas common paths (51b, 52b, 53b) that are provided so as to be more upward than the refrigerant flow path (32); gas introduction paths (51a, 52a, 53a) leading from the lower surface of the cooling plate (30) to each of the gas common paths (51b, 52b, 53b); and a plurality of gas distribution paths (51e, 52e, 53e) provided to each of the gas common paths (51b, 52b, 53b). A gas distribution path (53e) disposed on the outermost periphery of the ceramic plate (20) is provided at a position that does not overlap the refrigerant flow path (32) in plan view.

Devices and methods related to wideband multiplexer for radio-frequency (RF) applications. In some embodiments, a multiplexer may include a common path configured to receive a plurality of RF signals. The multiplexer may further include a first path having an output coupled to the common path and configured to provide a band-pass response for a frequency band BX. The multiplexer may further include a second path having an output coupled to the common path such that RF signals in the first and second paths are combined and routed through the common path. The second path may be configured to provide a band-stop response for the frequency band BX such that the common path includes a wideband response that includes the frequency band BX and one or more other frequency bands.

The guiding device includes an orbital member and a moving member that engages with the orbital member by sandwiching a plurality of rolling elements. In the moving member, a lubrication path is formed for supplying lubricant to the circulation path of the rolling elements. The lubrication path has a common path including an inlet portion that serves as an inlet for the lubricant, a first path through which the grease flows, and a second path through which the lubricating oil flows. The cross-sectional area of the second path is smaller than that of the first path, and in the common path, the second communication portion of the second path is located closer to the inlet portion side than the first communication portion of the first path. Moreover, the guiding device includes a plug member that closes the inlet portion of the common path, and the plug member is detachable and movable within the common path.

Telescopic arrangement comprising a first part (1) and a second part (2) and a support bearing assembly (10, 100) acting between the two parts (1, 2), wherein the two parts (1, 2) are able to move relatively along a common path during a telescopic adjustment, wherein the support bearing assembly (10, 100) is arranged between the two parts (1, 2) and localizes the two parts (1, 2) relative to each other in order to eliminate free play between the two parts (1, 2) which would otherwise occur in at least one direction orthogonal to the telescopic movement, wherein the support bearing assembly (10, 100) is fixed in place between the two parts (1, 2) by a release device which, in use, is arranged to cause the support bearing assembly (10, 100) to clamp both the first part (1) and the second part (2) when they are not move telescopically,to automatically release this clamping during a telescopic relative movement of the two parts (1, 2) exceeding a predetermined distance and subsequently to automatically resume this clamping when the telescopic relative movement has ceased, characterized in that the release device has at least one gripper (17, 18, 117, 118) that contacts the second part (2) and at least one feedback component (16, 116) that acts between the bearing ring (12, 13, 112, 113) and the gripper (17, 18, 117, 118), wherein the gripper (17, 18, 117, 118) securely clamps the second part (2) in use when the arrangement is not moving telescopically, and automatically releases its clamping on the second part (2) when it moves, and the gripper (17, 18, 117, 118) or Each gripper (17, 18, 117, 118) has a roller, wherein the at least three grippers (17, 18, 117, 118) are arranged at spaced locations around the circumference of the second part (2),where each is assigned to a corresponding feedback component (16, 116).

The application discloses a bottom-up clock tree synthesis method and system, which comprises inserting a logic unit to be inserted between a driver and a load connected to the driver; judging whether a clock tree with the inserted logic unit meets a design rule constraint, if yes, the insertion of the logic unit between the driver and the load connected to the driver is completed, if not, taking the inserted logic unit as a new load and starting from the insertion of the logic unit to be inserted between the driver and the load connected to the driver. When the logic unit is inserted, the logic unit is inserted layer by layer from bottom to top, and leaf nodes which need to share clock paths as much as possible due to clock skew, common control critical path and other reasons can be divided under the same sub-tree as early as possible in the bottom layer, so that the power consumption and the chip area occupied are reduced, the problem that the common path of the leaf nodes of the critical path is too short is avoided, and the clock tree synthesis situation of a buffer, an inverter or a mixture of both can be applied.

This disclosure provides a network path probing method, apparatus, and medium, relating to the field of network technology. The method includes: obtaining the splitting results of N first network path probing tasks, the splitting results including: one second network path probing task, which does not reach the target address but only probes a common path; and N third network path probing tasks, which reach their respective target addresses but do not probe the common path, wherein the common path is the common part of the target paths to the N target addresses; and executing or instructing the execution of network path probing tasks according to the splitting results. This disclosure splits the original network path probing tasks into common path probing tasks and individual path probing tasks by finding a common path among multiple original network path probing tasks. The common path part only needs to be probed once, reducing the number of packets sent for network probing.

The invention discloses a multi-frequency and broadband short-circuit inverted F-shaped antenna, which comprises a radio frequency circuit area with a function of improving the efficiency of the antenna; the feed-in point is arranged in the radio frequency circuit area and is used for welding a preset cable; the signal line is arranged in the radio frequency circuit area, two sides of the signal line are respectively spaced from the radio frequency circuit area, and one end of the signal line is electrically connected to the feed-in point; the radiation area is arranged on at least one side edge of the radio frequency circuit area, the radiation area comprises a low / intermediate frequency common path extending from the other end of the grounding wire to the first direction, an intermediate frequency radiation part extending from the tail end of the low / intermediate frequency common path to the second direction and a low frequency radiation path extending to the third direction and allowing a low frequency signal to pass through; the low-frequency path extends towards a fourth direction through a turn to form a low / high-frequency radiation part, and a short circuit area for high-frequency signals to pass through is formed on the inner side surrounded by the low / high-frequency radiation part, the low / intermediate-frequency common path and the low-frequency path.

A cementitious article (1) comprising: a substrate (2) formed from a cementitious material; and at least one branch channel (3) embedded within the substrate, configured to provide a conduit for a second material to flow through the substrate; wherein the at least one branch channel comprises a plurality of interconnected channel elements, the plurality of interconnected channel elements comprising at least one dispersion in which the plurality of paths are dispersed from the common path, and / or at least one convergence in which the plurality of paths converge to the common path.

A switch device structure includes RF1-st and RF2-nd input terminals, RFA-th, RFB-th and RFC-th output terminals, P2A-th, P1B-th and P1C-th paths, and first and second common paths. The P2A-th path includes a first terminal, and a second terminal coupled to the RFA-th output terminal. The P1B-th path includes a first terminal, and a second terminal coupled to the RFB-th output terminal. The P1C-th path includes a first terminal, and a second terminal coupled to the RFC-th output terminal. The first common path is coupled to the RF2-nd input terminal and the first terminal of the P2A-th path. The second common path is coupled to the RF1-st input terminal, the first terminal of the P1B-th path, and the first terminal of the P1C-th path. The first and second common paths cross each other on different planes to form a crossover.

Disclosed is a method and a device for rapidly measuring the transmission matrix of an ultra-long optical fiber, belonging to the field of information optics. The solution couples the spatial mode into ultra-long few-mode / multi-mode optical fiber for transmission. By obtaining the common path reference light at the output end of the ultra-long few-mode / multi-mode optical fiber and interfering with the signal light at the output end, the complex amplitude distribution of the signal light field output by the optical fiber is reconstructed, weight coefficients of different modes are obtained by performing overlapping integral on the complex amplitude distribution and the ideal complex amplitude distribution of different spatial modes. The transmission matrix of the ultra-long few-mode / multi-mode optical fiber can be obtained by rapidly switching the mode incident into the ultra-long few-mode / multi-mode optical fiber and sequentially calculating the weight coefficients of the different modes at the output end.

The invention discloses a bottom-to-top clock tree synthesis method and system. The method comprises the following steps: inserting a logic unit to be inserted between a driver and a load connected with the driver; and judging whether the clock tree in which the logic unit is inserted meets design rule constraints or not, if so, completing insertion of the logic unit between the driver and the load connected with the driver, and if not, taking the inserted logic unit as a new load, and starting execution from insertion of the logic unit to be inserted between the driver and the load connected with the driver. When the logic units are inserted, the logic units are inserted layer by layer from bottom to top, leaf nodes which need to share clock paths as far as possible due to clock skew, common control of key paths and other reasons can be divided into the same sub-trees as soon as possible at the bottom layer, power consumption and occupied chip area are reduced, and the cost is reduced. The problem that a common path of leaf nodes of a critical path is too short is avoided, and the method can be suitable for the situation of clock tree synthesis of a buffer, a phase inverter or a mixture of the buffer and the phase inverter.

The invention discloses a clock tree synthesis method and a computer readable storage medium. The method comprises the steps that a global clock tree of a target circuit is acquired, the global clock tree comprises a plurality of time sequence deviation groups, a sub-clock tree corresponding to each time sequence deviation group is determined according to each time sequence deviation group, each sub-clock tree comprises a common path and a plurality of non-common paths branched by the common path, and the common path is a common path; the common path and the non-common path comprise a plurality of elements; for each sub-clock tree, determining a to-be-processed driving object according to a common path of the sub-clock tree; calculating a load center position according to the plurality of non-common paths; a load center element is inserted into the load center position; and when the element of the common path where the inserted load center element is located and the element adjacent to the load center element in each non-common path connected with the inserted load center element do not meet the preset design constraint, a plurality of signal adjusting units are arranged between the to-be-processed driving object and the inserted load center element.

The semiconductor device includes an n-type first semiconductor region 11 formed on a surface side of a p-type semiconductor substrate 10 and serving as a common path for currents flowing through a switching element and a protection element, an n-type common contact region 12 formed on the first semiconductor region 11 with a high impurity concentration and connected to a common electrode 21 serving as both a first main electrode and a protection element side first electrode, a p-type second semiconductor region 13 and a p-type third semiconductor region 14 locally formed in the first semiconductor region 11 at locations separated from the common contact region 12, and an n-type fourth semiconductor region 15 locally formed in the second semiconductor region 13 in plan view. A second main electrode 22 is connected to the fourth semiconductor region 15, and a protection element side second electrode 26 is provided inside the third semiconductor region 14.

The invention provides a high-frequency module which reduces transmission loss of signals of a plurality of frequency bands. A high-frequency module is provided with: a switch (11) having a selection terminal (11b) connected to an antenna (2a), a selection terminal (11c) connected to an antenna (2b), and a common terminal (11a); a switch (12) having selection terminals (12a), (12b) and a common terminal (12f); filters (41) and (42); an inductor (21) connected to a common path connecting the common terminals (11a) and (12f); an inductor (31) connected to a signal path connecting the selection terminal (12a) and the filter (41); and an inductor (32) connected to a signal path connecting the selection terminal (12b) and the filter (42), the distance between the inductor (21) and the inductor (31) being smaller than the distance between the inductor (21) and the inductor (32).