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33 results about "Return channel" patented technology

In communications systems, the return channel (also reverse channel or return link) is the transmission link from a user terminal to the central hub. Return links are often, but not always, slower than the corresponding forward links. Examples where this is true include asymmetric digital subscriber line, cable modems, mobile broadband and satellite internet access.

Split buckling type ball screw pair reverser structure and circulating method thereof

The invention relates to the technical field of ball screw pair transmission, and discloses a split buckling type ball screw pair reverser structure and a circulating method thereof.The split buckling type ball screw pair reverser structure structurally comprises a ball screw, a ball nut (8) and balls, the ball screw is sleeved with the ball nut (8), a spiral raceway is arranged between the ball screw and the ball nut (8), and the balls are arranged in the spiral raceway; the ball nut (8) is provided with a reverser (1), and the reverser (1) is formed by buckling an upper piece and a lower piece through a mortise and tenon joint structure (7); a ball return channel (2) communicated with the spiral raceway is arranged in the reverser (1); the curve curvature of the ball return channel (2) enables the ball to be tangent to the lead angle and the pitch diameter of the ball screw in the spiral direction; and a smooth transition structure is adopted at the joint of the reverser (1) and the ball nut (8). The device is simple in structure, high in assembly precision, stable in operation, low in noise and suitable for various specifications.
Owner:QIDONG VIRUNTEC MASCH TOOL ACCESSORIES CO LTD

Devices and manufacture for fiber reinforced high temperature superconductors

A device comprises a tube with a tube HTS solenoid, wherein a projectile in a sabot comprising a sabot HTS solenoid. A method comprises disposing a seed HTS crystal on a growing crystal in contact with an a-b plane of the seed HTS crystal to grow the growing crystal, wherein the a-b plane is perpendicular to a c-axis. A method comprises disposing a seed HTS crystal on a growing crystal in contact with a b-c plane of the seed HTS crystal to grow the growing crystal, wherein the b-c plane is perpendicular to an a-axis. A device comprises a reinforced HTS material in a graphene casing, wherein the HTS in the graphene casing includes a cooling channel and a return channel.
Owner:LAU SUPERCONDUCTORS INC

Circulating guide assembly and linear guide rail device

PendingCN120946686ALinear bearingsStructural engineeringReturn channel
The invention provides a circulating guide assembly and a linear guide rail device. The circulating guide assembly is applied to the linear guide rail device and comprises a first forming body and two second forming bodies. The first forming body comprises a rolling body retaining part and two end connecting plates arranged at the two ends of the rolling body retaining part respectively, and the rolling body retaining part is used for being matched with a sliding block load channel to retain a rolling body in the sliding block load channel; the second forming body comprises two combined bodies, each combined body comprises a tubular return channel part and an inner guide part arranged at one end of the return channel part, and the two combined bodies are connected into a whole at one end of the inner guide part. According to the linear guide rail device, through high-precision cooperation of all the components of the circulating guide assembly, the segment difference of the combination portions of all the components in the linear guide rail device can be reduced, the running smoothness is improved, meanwhile, the assembling convenience is improved, and the production cost is reduced.
Owner:JIANGSU HENGLI PRECISION IND CO LTD

REDUCED COMPLEXITY VEHICLE INSTRUMENT CONTROL USING RETURN CHANNEL TRANSMISSION

Instrument control system (100) which is at least partially arranged in a vehicle and comprises the following: a data storage device (113); a processor (101) which communicates with both the data storage (113) and a control bus (111) of the vehicle; a display (103) which communicates with the processor (101) via a display channel (104) which has a maximum transmission bandwidth, wherein the display (103) receives display data from the processor (101) with a first transmission bandwidth which is less than the maximum transmission bandwidth; and an instrument cluster (105) comprising several instruments (107) which communicate with the processor (101) via the display channel (104), wherein the several instruments (107) include at least one of the following: a general-purpose input / output expander (107a), a stepper motor driver (107c), a speedometer, a tachometer, an engine thermometer, a fuel gauge or a warning tone generator; wherein the multiple instruments (107) jointly receive data from the processor (101) with a second transmission bandwidth that is not greater than the difference between the maximum transmission bandwidth and the first transmission bandwidth, and the processor (101) is capable of controlling each of the multiple instruments (107); wherein the unused bandwidth of the display channel (104) forms a return channel (109) between the processor (101) and the instrument cluster (105); wherein the instruments (107) using the return channel (109) have common bandwidth requirements which are less than the difference between the maximum transmission bandwidth and the first transmission bandwidth, the second transmission bandwidth is used for the exchange of control data between the processor (101) and the instrument cluster (105).
Owner:ROBERT BOSCH GMBH

A reverser and ball screw

ActiveCN224479255UBall screwReturn channel
The utility model discloses a kind of reversers and ball screws, it is related to ball screw pair technical field;For with the return channel of the circulation rolling of ball of ball nut internal communication formation, including reverser body, reverser body is set up along length direction and is used to form the return channel's return rotary groove;The two sides of reverser body along width direction are connected with the die body, the side of die body along height direction can extend and protrude in return rotary groove preset height, to be inserted and connected in ball nut;The length direction of return rotary groove two ends respectively extends preset distance towards return channel, so that the length direction of return rotary groove two ends respectively forms the first guide part and second guide part for guiding ball into return rotary groove, which can be connected with return channel.
Owner:SHANDONG GOLDEN EMPIRE PRECISION MACHINERY TECH CO LTD

Cache performance detection method and device and storage medium

The embodiment of the invention provides a cache performance detection method and device and a storage medium, which can be applied to the technical field of artificial intelligence chips, in the method, based on the number of active cycles of loading a storage cache and the number of active cycles of an application running on an artificial intelligence chip, the active rate of loading the storage cache is obtained; obtaining the blocking condition of the interface component based on the blocking rates of the interface component in the loading storage cache in the request channel dimension and the data channel dimension; obtaining the blocking condition of the communication component based on the blocking rates of the communication component in the load storage cache in the data receiving channel dimension and the return channel dimension; based on the active rate, the blocking condition of the interface component and the blocking condition of the communication component, the performance detection result of the loading storage cache is obtained, detection from the whole loading storage cache to the blocking condition of each component is achieved, the coverage rate of the loading storage cache is increased through the layered detection method, and the detection efficiency is improved. Therefore, the accuracy of performance detection is improved.
Owner:SHANGHAI BIREN TECH CO LTD

Return channel for a surf pool

PCT designated stageWO2025227237A1Wave producing pumpsGymnasiumOceanographyReturn channel
A surf pool attraction is described that includes a return channel configured to collect and redirect water back into a surf basin of the surf pool attraction. Various embodiments are described that include configurations in which the return channel is covered by grating panels that improve navigability of the surf pool attraction while still allowing water to be collected in the return channel. The return channel can include a peripheral channel portion that extends around a periphery of one side of the surf pool and a central channel portion that connects to and extends from the peripheral channel portion toward a central region of the surf basin.
Owner:WHITEWATER WEST IND LTD

Screw vacuum pump exhaust muffler

The utility model belongs to screw vacuum pump technical field, concretely relates to screw vacuum pump exhaust muffler. In view of the deficiency that the existing screw vacuum pump exhaust muffler fails to better give consideration to the sound attenuation effect and volume, the utility model adopts the following technical scheme: the screw vacuum pump exhaust muffler includes: cylinder, has annular wall, air inlet end wall and air outlet end wall, air inlet, exhaust port, first baffle, along the radial setting of cylinder, first pipeline, second baffle, along the radial setting of cylinder, second pipeline, first baffle is close to air inlet, second baffle is close to exhaust port, and first baffle and second baffle divide the cylinder into axially distributed air inlet chamber, middle chamber and air outlet chamber, first pipeline is connected with air inlet chamber and air outlet chamber, and second pipeline is connected with middle chamber and exhaust port, and the screw vacuum pump exhaust muffler still includes the return channel that is connected with middle chamber and air outlet chamber, the utility model has the advantages of: the sound attenuation path is longer and the structure is relatively compact.
Owner:ZHEJIANG VALUE MECHANICAL & ELECTRICAL PROD CO LTD

Return channel with non-constant return channel vanes pitch and centrifugal turbomachine including said return channel

A return channel for a centrifugal turbo machine. The return channel includes a plurality of return channel vanes, arranged around a return channel axis. Each return channel vane includes: a leading edge at a first distance from the return channel axis, a trailing edge at a second distance from the return channel axis, the second distance being smaller than the first distance. A respective flow passage is defined between each pair of adjacently arranged return channel vanes. The return channel vanes are arranged with a non-constant pitch around the return channel axis.
Owner:NUOVO PIGNONE TECH SRL

Rigid-elastic ball composite cambered surface worm and worm gear transmission mechanism

The invention discloses a steel and elastic ball compounded cambered worm and worm gear transmission mechanism which comprises a worm and worm gear box, a worm gear cavity used for mounting a worm gear is formed in the top end in the worm and worm gear box, a worm cavity used for mounting a cambered worm is formed in the bottom end in the worm and worm gear box, and a spiral semicircular raceway is formed in the outer surface of the cambered worm. A plurality of elastic balls and rigid balls are alternately arranged in the spiral semicircular raceway, a ball return channel is formed in the arc-shaped worm, the two ends of the ball return channel are connected with the starting point position and the final point position of the spiral semicircular raceway respectively to form a closed loop, and a ball protection sleeve is arranged outside the arc-shaped worm. And the worm gear is embedded into an arc opening in the axial direction above the ball protection sleeve. The rigid balls can perform pure rolling on the spiral semicircular raceways, friction and abrasion are greatly reduced, transmission efficiency is improved, gapless transmission is achieved, energy loss is reduced, and meanwhile the service life of the transmission mechanism is prolonged.
Owner:宋家庆

Recirculating ball segment for an adjusting unit of a steering column

The invention relates to a recirculating ball segment (1) for an adjusting unit of a steering column of a vehicle, comprising a cage (15) which at least partially forms support channels (3) and return channels (4) of two recirculating ball guides, a plurality of balls (5) which are arranged in the support channels (3) and return channels (4), and a spring element (6) by means of which the balls (5) located in support channels (3) are spring-loaded, with a load direction (8) which is oriented perpendicular to a plane formed by the support channels, and a movement direction (9) which extends in the direction of the support channels (3), wherein the spring element (6) is rounded in a central region (7) which is adjacent to the return channels in the load direction (8), transverse to the movement direction (9) of the recirculating ball segment (1).
Owner:SCHAEFFLER TECHNOLOGIES AG & CO KG

Plant for the treatment and recycling of white slag resulting from a steelmaking process

ActiveCN115461589BSteelmakingReturn channel
An apparatus (1) for processing and recycling white slag generated from a steelmaking process includes: at least one basic frame (2); at least one working chamber (3) rotatable about an associated axis (A) and configured to receive and process the white slag (S), which moves forward along at least one processing direction (D), the working chamber (3) including: at least one loading section (8) through which the white slag (S) is loaded; at least one cooling section (10) disposed downstream of the loading section (8) and including: at least one processing channel (11) for the white slag (S); and a cooling device (12) including at least one coolant (F) to cool the white slag (S) to obtain at least one recycled powder (R); at least one sorting and separating section (13) for the recycled powder (R), the at least one sorting and separating section being relative to the processing direction. The cooling unit (12) is arranged downstream of the cooling section (10); wherein the cooling section (10) includes a plurality of processing channels (11) separated from each other, each of the processing channels being adapted to receive a portion of the white residue (S) generated due to the rotation of the working chamber (3), and wherein the cooling device (12) includes at least one delivery channel (21) for sending the coolant (F) countercurrently toward the loading section (8) relative to the processing direction (D), at least one return channel (22), and at least one inlet manifold (42), the at least one return channel being arranged to send the coolant (F) around the delivery channel (21) parallel to the processing direction (D) toward the sorting and separating section (13), and the at least one inlet manifold being arranged at the point where the loading section (8) is located and being adapted to transfer the coolant (F) from the delivery channel (21) to the return channel (22).
Owner:马西米兰诺·皮尔斯洛

Linear guide rail pair

The application discloses a linear guide rail pair, which comprises a guide rail body, a sliding block, a return piece and a plurality of rolling balls, the guide rail body is provided with a first rolling groove; the sliding block is slidingly installed on the guide rail body, the sliding block is provided with a second rolling groove, a return channel and a ball return groove, the second rolling groove and the first rolling groove are combined into a sliding channel, one side of the ball return groove is provided with a first opening, and two ends of the ball return groove are communicated with the second rolling groove and the return channel respectively; the return piece is welded on the sliding block and closes the first opening; and the plurality of rolling balls are arranged in the sliding channel and can roll along the sliding channel. The linear guide rail pair can avoid machining positioning holes and threaded holes, has simple machining process, high yield, effectively reduces production cost, and has smooth rotation of the steel balls, smooth operation of the linear guide rail pair and reliable performance.
Owner:SU CHUNGUANG

Onboard optical coupling device

The invention provides an onboard optical coupling device which is connected between two data processing devices. The onboard optical coupling device includes an optical waveguide having a plurality of alignment channel units and a plurality of waveguide channels. The first photonic device includes a plurality of first return channels and a first optical channel. The second photonic device includes a plurality of second return channels and a second optical channel. In the one-time alignment process, the multiple first optical channels and the multiple second optical channels are optically aligned with the corresponding waveguide channels, and meanwhile the first return channel and the second return channel are optically aligned with the alignment channel unit, so that the optical alignment efficiency is improved.
Owner:AIP INC(CN)

A cache performance detection method, device and storage medium

Embodiments of the present application provide a cache performance detection method and device and a storage medium, which can be applied to the field of artificial intelligence chip technology. In the method, the active rate of the load-store cache is obtained based on the number of active periods of the load-store cache and the number of active periods of an application program running on the artificial intelligence chip; the blocking condition of the interface component in the load-store cache is obtained based on the blocking rate of the interface component in the request channel dimension and the data channel dimension; the blocking condition of the communication component in the load-store cache is obtained based on the blocking rate of the communication component in the data receiving channel dimension and the return channel dimension; and the performance detection result of the load-store cache is obtained based on the active rate, the blocking condition of the interface component and the blocking condition of the communication component, so as to realize the detection of the blocking condition of each component from the whole load-store cache. Such a layered detection method improves the coverage of the load-store cache and thus improves the accuracy of performance detection.
Owner:SHANGHAI BIREN TECH CO LTD

A cooling device having an evaporator assembly

PCT designated stageWO2025219153A1Lighting and heating apparatusCooling fluid circulationReturn channelHolding room
By the present invention, a cooling device (1) is described which comprises a body (2) which has a body inner wall (34) provided in a manner encircling at least one storage compartment and a body outer wall (3) provided in a distanced manner to the body inner wall (34), an evaporator assembly (9) which at least partially extends in a longitudinal direction (x) of the body inner wall (34) and which has an evaporator (10); wherein the evaporator assembly (9) comprises an evaporator heater (13) which has heater horizontal part (37a) in a manner extending in the longitudinal direction (x), and wherein in order to provide return of the air, which exists in a first storage compartment (7) which has an inner space (39) where the evaporator assembly (9) is at least partially positioned, to the evaporator (10), the evaporator assembly (9) has at least one return channel (28) provided at a side facing the first storage compartment (7). In the invention, the return channel (28) is provided in a manner opening to a lower part (38) of the evaporator (10) in a manner not overlapping with the heater horizontal part (37a) in a depth direction (z) which is from the first storage compartment (7) towards the evaporator assembly (9).
Owner:BOSCH SIEMENS HAUSGERATE GMBH

Cooling option for an axial compressor

The invention comprises an axial compressor (1), comprising a rotatably mounted rotor (2), an inner housing (3) arranged around the rotor (2), a flow channel (4) arranged between the rotor (2) and the inner housing (3), the flow channel (4) being designed to compress a flow medium, an inflow region arranged upstream of the flow channel (4), an outflow region (7) arranged downstream of the flow channel (4), a return channel (22) which is fluidically connected to the outflow region (7), a coolant supply channel (23) which is fluidically connected to the return channel (22), the coolant supply channel (23) being designed for the flow of cooling medium, the return channel (22) and the coolant supply channel (23) opening into a common cooling line (13), the cooling line (13) opening into a region between the rotor (2) and the inner housing (3).
Owner:SIEMENS ENERGY GLOBAL GMBH & CO KG

Internal combustion engine for a motor vehicle, motor vehicle, and method

ActiveUS12590553B2Machines/enginesLubricant level maintainanceOil separationCrankcase
An internal combustion engine for a motor vehicle includes a crankcase. The crankcase has having at least two oil separation devices and having a return device. The return device has at least one first return channel that is flowable through by a first portion of the oil separated from the blow-by gas with a first of the oil separation devices, through which the first portion of the separated oil is guided from the first oil separation device into the reservoir. The return device also has at least one second return channel that is at least partially spaced apart from the first return channel and is flowable through by a second portion of the oil separated from the blow-by gas via the second oil separation device, through which second return channel the second portion of the separated oil is guided from the second oil separation device into the reservoir.
Owner:BAYERISCHE MOTOREN WERKE AG

Small refrigeration house and partitioned defrosting method and defrosting system

The invention discloses a small refrigeration house and a partition defrosting method and system, the partition defrosting system comprises a refrigeration cycle main path including an evaporator, the evaporator is divided into a first area and a second area which can be independently controlled, a first reversing valve is located on the inlet side of the evaporator, and a refrigerant is distributed to the two areas of the evaporator in a refrigeration mode; in the defrosting mode, refrigerant liquid supply of a non-defrosting area is maintained, and meanwhile, a countercurrent gas return channel of a defrosting area is provided; the second reversing valve is located on the outlet side of the evaporator and gathers refrigerants in the two areas of the evaporator to be guided into the refrigeration compressor in the refrigeration mode, and high-temperature exhaust gas of the refrigeration compressor is guided into a defrosting area of the evaporator in the defrosting mode. According to the method, partition defrosting of the evaporator is achieved through the system, and hot gas countercurrent defrosting and refrigeration are synchronously operated. Hot gas defrosting can be applied to the small refrigeration storage, defrosting is fast, and the temperature fluctuation of the refrigeration storage is small.
Owner:LUOYANG INST OF SCI & TECH

Current return channel and method for use of residual current device with differential current sensor in ungrounded DC power supply system

The invention relates to a current return channel (20) and a method for using a residual current device (4) with a differential current sensor (8) in an ungrounded DC power supply system (2) using a current return channel (20). The current return channel (20) comprises an electronic circuit (22) coupled via two terminals between each of the active conductors (DC +, DC-) of the ungrounded power supply system (2) and ground (PE) and configured to be temporarily automatically activated when the low resistance insulation fault (1) instantaneously intermittently occurs, and temporarily automatically activated when the low resistance insulation fault (1) instantaneously intermittently occurs. In this way, a fault circuit in which a current-limiting fault current (If) flows, which triggers the residual current device (4), is formed.
Owner:BENDER SA

Linearantrieb

Linear actuator, consisting of: • a long shaft section (20) which extends in the axial direction (X) and is designed with a roller conveyor (22), • a displacement module (30) which is mounted on the long shaft part (20) in an axial direction (X) in a pendulum-like manner and is provided with a groove (31) complementary to the roller conveyor (22), wherein the roller conveyor (22) forms a load path with the groove (31), • a roller unit (40) which is arranged in the load path and comprises several roller parts (41) and several spacers (42), wherein a spacer (42) is inserted between all two roller parts (41), • a return assembly (50) which is arranged on the displacement module (30) or connected to the load path and comprises a first return pipe (51), a second return pipe (52) connected to the first return pipe (51), and a return channel (53) passing through the first return pipe (51) and the second return pipe (52), wherein the return channel (53) serves for the circulation of the roller unit (40), wherein the first return pipe (51) has a first connection side (512) and the second return pipe (52) has a second connection side (522), and the first connection side (512) of the first return pipe (51) presses against the second connection side (522) of the second return pipe (52), • at least one detection assembly (60) which is attached to the displacement module (30) and to the connection point between the first connection side (512) of the first return pipe (51) and the second connection side (522) of the second return pipe (52) and to an outer surface of the first return pipe (51) and the second return pipe (52), and which can detect the changes in distance of the individual roller parts (41) and then output a corresponding signal when the roller unit (40) rotates in the return channel (53), and • a data interception unit (80) which is signal-connected to at least one acquisition unit (60) in order to receive signals from the acquisition unit (60).
Owner:HIWIN TECH CORP

Plasma-facing component cooling

A plasma-facing component for a plasma chamber, comprising: a plasma-facing target surface; an inlet through which to receive a coolant fluid and an outlet through which to expel the coolant fluid; and a plurality of internal cooling channels. Each cooling channel is connected to the inlet by a plurality of feed channels and to the outlet by a plurality of return channels, the feed channels being configured to direct coolant fluid against a region of a wall of the cooling channel. Respective openings of the feed and return channels into the cooling channel are arranged in non-overlapping repeating units along a length of the cooling channel. Each unit comprises openings of at least one feed channel and at least one return channel.
Owner:TOKAMAK ENERGY

Track maintenance machine with a conveyor or excavating chain arrangement

ActiveUS12467208B2BallastwayTrackwayCoupling
A track maintenance machine with a conveyor or excavating chain arrangement for removing and collecting railway ballast and / or other formation or substructure layers of a track structure is shown, comprising a cutter bar which can be positioned below a track and which has at least two bar elements, each adjustable in position and alignment, and which is attached to an ascent channel and to a return channel. The device comprises a guided excavating chain consisting of a plurality of chain links, wherein the arrangement can be fastened to a machine frame via at least one height-adjustable suspension device. The excavating chain is designed to be divisible, that the bar elements can be connected via a coupling to form a closed overall unit, and that the arrangement can be variably adjusted in its excavating working width by adjusting the position of the bar elements.
Owner:PLASSER & THEURER EXPORT VON BAHNBAUMASCHINEN GMBH

Flying bar full-automatic circulating conveying system and method for intelligent electroplating production line

The invention discloses a full-automatic circulating conveying system and method for a flying bar of an intelligent electroplating production line, and relates to the technical field of electroplating industrial equipment. A complete and closed automatic circulation path is constructed by main components such as the lower frame position lifting mechanism, the transfer mechanism, the conveying chain mechanism, the translation trolley mechanism and the upper frame position lifting mechanism, automatic return of the empty flying bar is realized, manual intervention for hoisting is not needed, the production efficiency is greatly improved, and the labor intensity is reduced; based on triggering signals of various sensors (for example, sensing hooks and sensing in-place flying bars) and the like, accurate, stable and reliable automatic handover sequence execution among different transfer mechanisms is controlled; the space above the production line is ingeniously used for arranging an empty flying bar returning channel or temporary storage, the occupied space for placing the empty flying bar is saved, and the situation that the empty flying bar interferes with the main technological process and influences the production rhythm in the process that the empty flying bar returns to the upper frame position from the lower frame position in the production line is avoided.
Owner:HENGLI ELETEK

Split-flow structure, double-cannula and its fastening method, pipe structure

The application belongs to the field of medical instrument research / manufacture, and particularly relates to a shunt structure, a double-cannula and a fastening method thereof, and a pipeline structure, more particularly to a shunt structure of a double-cannula, a double-cannula and a fastening method thereof, and a partial pipeline structure of a cryosurgery device. The shunt structure comprises a porous base, a sleeve type connecting seat and a shunt connecting seat, independent shunting of an inner tube (high pressure supply) and an outer tube (return channel) is realized through an internal communication pipe and an adapter hole, and gear adjustment is supported. The double-cannula design comprises a connecting head (integration part and connecting part), the integration part adopts an integrated head, a connecting pipe and an elastic seal to ensure integration of the inner tube and the outer tube; the connecting part uses a connecting sleeve and a positioning pin to provide fastening and alignment. The inner tube is connected with the integrated head by extrusion of an elastic fastener; the connecting sleeve is screwed to the base to realize reliable fixing of the high pressure pipeline. The method is applied to the pipeline structure, and the flexibility is enhanced in combination with the outer tube sheath.
Owner:NINGXIA BEIYI MEDICAL INSTR CO LTD

ExB Thermoelectric Effect Device

PendingUS20250386730A1Mean free pathLoad resistance
The E×B thermoelectric effect is based on the E×B drift, a CPT phenomenon that biases the velocity distribution of charged particles and transports them along cycloids perpendicularly to the E and B fields. This transport mechanism relies on the configuration of the electromagnetic fields, not on phonon drag and temperature difference. The resulting downstream carrier concentration produces a voltage that drives a current through a load. To close the electrical loop, the drift is turned on in the forward channel by increasing mobility and decreasing concentration, and off in the return channel by decreasing mobility and increasing concentration. Power is maximized when the Hall resistivity is matched to the sum of the Drude resistivity of the semiconductor and the equivalent load resistivity. It is also maximized at the thermodynamic threshold, where the mean free path equals the size of the cycloids. This threshold is a powerful design optimization tool.
Owner:LEVY FAMILY TRUST DATED OCTOBER 13 1997

A wavelength selective switch based on metasurface optical elements and communication device thereof

The application discloses a wavelength selective switch based on a metasurface optical element and communication equipment thereof and belongs to the technical field of optical communication networks.The wavelength selective switch comprises a light emitting end, a metasurface lens array, a Fourier lens, a metasurface grating lens, a reflecting unit and a plurality of light receiving ends; the metasurface lens array is used for carrying out divergence angle compression on composite light output by the light emitting end; the metasurface lens array comprises a first base material and a first metasurface microstructure; the Fourier lens is used for preliminarily collimating the composite light after the divergence angle compression to obtain parallel composite light beams and is used for realizing return channel coupling of reflected light beams; the metasurface grating lens is used for carrying out diffraction light splitting, focusing and shaping on the parallel composite light beams after the collimation to obtain a plurality of separated single-wavelength lights; the reflecting unit is used for receiving and reflecting the plurality of single-wavelength lights; and the plurality of single-wavelength reflected lights are received by the light receiving ends.The application simplifies the structure of a WSS system and reduces the volume.
Owner:JINAN UNIVERSITY

A multi-core tensor processor based on distributed on-chip storage

The application discloses a kind of multi-core tensor processors based on distributed on-chip storage.The multi-core tensor processor includes a plurality of memory-computing integrated modules;Memory-computing integrated module contains two master device interfaces M0, M1 and two slave device interfaces S0, S1;Master device interface and slave device interface are composed of read / write channel and read / write return channel;The way of head-to-tail is used for interconnection between a plurality of memory-computing integrated modules;Each memory-computing integrated module includes tensor processor, on-chip memory, MUX2 module, MUX3 module, DEMUX2 module, DEMUX3 module, address decoding module, tag decoding module and arbitration module and the like module, and the tensor processor and on-chip memory in memory-computing integrated module can form complete computing system, complete the calculation of neural network algorithm.The application has the advantages of high storage bandwidth, has excellent scalable characteristics, can realize large-scale multi-core tensor processor under the premise of guaranteeing high bandwidth and not increasing interconnection complexity.
Owner:XIAMEN YIPU SMART TECH CO LTD

Method, apparatus, and medium for encoding and decoding audio bitstreams and associated return channel information

1. A method performed by a device having one or more microphones to generate an encoded bitstream, the method comprising: capturing one or more audio signals with the one or more microphones; analyzing the captured audio signals to determine the presence of a wake word; setting a flag upon detecting the presence of a wake word to indicate that a speech recognition task is to be performed on the captured audio signals; encoding the captured audio signals; and assembling the encoded audio signals and the flag into the encoded bitstream.
Owner:DOLBY LABORATORIES LICENSING CORP +1