Abstract: Techniques are described for characterizing a receiver front end of a pluggable optical module. The pluggable optical module receives an optical signal that includes a first portion having a first polarization and a second portion having a second polarization. The first portion and second portion are not coherent with one another and the power of the first portion and second portion is equal.

Abstract: A microphone includes a substrate, an opening extending through the substrate, a first electrode plate layer on the opening, a second electrode plate layer spaced apart from the first electrode plate layer, a support structure layer on the substrate including an electrode attachment portion operable to attach the second electrode plate layer and a stopper operable to block contact between the first electrode plate layer and the second electrode plate layer, a cavity delineated by the support structure layer, the first electrode plate layer, and the substrate, and a conductive material layer on the support structure layer and spaced apart from the second electrode plate layer. The microphone has a significantly lower leakage current than conventional semiconductor microphones.

Abstract: In a wireless multi-hop relay network arranged in a tree topology, the base station and one or more relay stations are associated as a virtual base station (VBS). The base station and each relay station have a unique virtual base station identifier (VBS-ID) associated with the path defined by the base station and the one or more relay stations. A relay station in the branch uses its VBS-ID for communicating with an attached subscriber station (e.g. a mobile station) such that communications between the base station and subscriber station occur via the VBS. Subscriber station data communications are relayed between the base station and the one or more relay stations over the VBS via a tunnel connection. The VBS is auto configurable. Mobility for subscriber stations and 10 relay stations is provided through reconfiguration of VBS's.

Abstract: Techniques for decoding potentially corrupted Reed-Solomon encoded messages are provided. To decode a message, an incoming message is classified into a group based on which symbols of the message have survived (a “survival pattern”). The same inversion matrix may be used for each survival pattern associated with a single group. This reduces the amount of work required and data that is to be stored in order to perform the matrix multiplication that decodes the message.

Abstract: In some embodiments, a non-transitory processor-readable medium storing code representing instructions to be executed by a processor comprises code to cause the processor to determine, during a calibration of a coherent optical transmitter, a set of parameters associated with each tributary channel by sending a first signal to a digital signal processor (DSP) to adjust a scale factor of that tributary channel. The scale factor is associated with a tap characteristic of a finite impulse response (FIR) filter of the DSP. The code further causes the processor to determine a power imbalance between two tributary channels based on the set of parameters associated with each tributary channel. The code further causes the processor to send a second signal to the coherent optical transmitter to adjust a set of operational settings of the coherent optical transmitter based on the power imbalance and the set of parameters associated with each tributary channel.

Abstract: An image processing apparatus includes a calculator configured to calculate a respective position offset for each of a plurality of candidate areas in a second frame based on a position of a basis image in a first frame and a determiner configured to determine a final selected area that includes a target in the second frame based on a respective weight allocated to each of the plurality of candidate areas and the calculated respective position offset.

Abstract: The disclosure provides an object detection method and apparatus based on a Dynamic Vision Sensor (DVS). The method includes the following operations of: acquiring a plurality of image frames by a DVS; and, detecting the image frames by a recurrent coherent network to acquire a candidate box for objects to be detected, wherein the recurrent coherent network comprising a frame detection network model and a candidate graph model. By using a new recurrent coherent detection network, a bounding box for an object to be detected is fast detected from the data acquired by a DVS. The detection speed is improved greatly while ensuring the detection accuracy.

Abstract: This disclosure provides a laser speckle-removing optical component, including a beam-shrinking lens group and a diffusion sheet arranged on a laser emergent optical path, where the beam-shrinking lens group includes a first beam-shrinking lens and a second beam-shrinking lens, and the diffusion sheet is located between the first beam-shrinking lens and the second beam-shrinking lens, and a distance between the diffusion sheet and the first beam-shrinking lens is shorter than a focal length of the first beam-shrinking lens. The arrangement of the diffusion sheet between the first beam-shrinking lens and the second beam-shrinking lens is able to alleviate the accumulation phenomenon of dust particles on the diffusion sheet, therefore, alleviating light attenuation phenomenon, and prolonging the service life of the laser source. This disclosure also provides a double-color laser source, a three-color laser source and a laser projection equipment applying the above laser speckle-removing optical component.

Abstract: Exemplary embodiments provide an image vision processing method, device and equipment and relate to: determining parallax and depth information of event pixel points in a dual-camera frame image acquired by Dynamic Vision Sensors; determining multiple neighboring event pixel points of each non-event pixel point in the dual-camera frame image; determining, according to location information of each neighboring event pixel point of each non-event pixel point, depth information of the non-event pixel point; and performing processing according to the depth information of each pixel point in the dual-camera frame image. Since non-event pixel points are not required to participate in the matching of pixel points, even if it is difficult to distinguish between the non-event pixel points or the non-event pixel points are occluded, depth information of the non-event pixel points can be accurately determined according to the location information of neighboring event pixel points.

Abstract: Embodiments of the present invention provide a method and device for processing Dynamic Vision Sensor (DVS) events. The method comprises the operations of: acquiring a DVS event map sequence; for any DVS event map in the DVS event map sequence, extracting a DVS event feature descriptor, where the DVS event feature descriptor has a scale-invariant feature and/or a rotation-invariant feature; determining, according to the extracted DVS event feature descriptor, a three-dimensional space pose of the DVS event map at the current moment; and, generating, according to the three-dimensional space pose of each DVS event map, a DVS event map sequence with temporal consistency. The embodiments of the present invention are used for generating, from a DVS event map sequence, a DVS event map sequence with temporal consistency.

Abstract: A method for processing audio data includes: setting a first queue for managing at least one configured information control node of audio data to be played and a second queue for managing at least one configured information control node of played audio data, wherein each of the at least one configured information control node contains attribute information for the audio data to be played; unchaining a unit of the at least one configured information control node from the first queue; reading audio data to be played corresponding to the unit of the at least one configured information control node according to the attribute information for the audio data to be played in the unit of the at least one configured information control node; and chaining the unit of the at least one configured information control node to the second queue.

Abstract: A method implemented in a content node configured to operate in an information centric network (ICN) comprising allocating each of a plurality of memory spaces coupled to a processor exclusively to a particular thread from a plurality of threads allocated in the processor, wherein the processor is in a content node; assigning each of a plurality of namespaces at a defined level exclusively to one of the particular threads from the plurality of threads based on an assignment algorithm; and partitioning entries from a Forwarding Information Base (FIB) table, wherein the entries map content names to ports on the content node, wherein each entry is partitioned in a FIB sub-table to the memory space allocated to the one of the particular threads associated with the namespace corresponding to the content name contained within the entry.

Abstract: This disclosure provides a laser speckle-removing optical component, including a beam-shrinking lens group and a diffusion sheet arranged on a laser emergent optical path, where the beam-shrinking lens group includes a first beam-shrinking lens and a second beam-shrinking lens, and the diffusion sheet is located between the first beam-shrinking lens and the second beam-shrinking lens. The arrangement of the diffusion sheet between the first beam-shrinking lens and the second beam-shrinking lens, increases the area of speckles received by the diffusion sheet component, reduces energy density of the light received, and is able to alleviate the accumulation phenomenon of dust particles on the diffusion sheet, therefore, alleviating light attenuation phenomenon, and prolonging the service life of the laser source. This disclosure also provides a double-color laser source, a three-color laser source and a laser projection equipment applying the above laser speckle-removing optical component.

Abstract: Disclosed is a gear adjusting device for a gearbox of an impact drill, comprising a front gearbox housing, a torsional cover, a reduction mechanism and a tripping mechanism which comprises annular adjusting screws, tripping columns and a tripping cushion. Each tripping column is sleeved with a compression spring with two ends respectively connected to the bottom of a corresponding adjusting screw and a corresponding tripping column. The torsional cover is in threaded drive connection with each adjusting screw. The lower end of each tripping column is connected with the reduction mechanism. The tripping cushion is slidably connected to the front gearbox housing along the vertical direction. A cushion locking structure is disposed between the torsional cover and the front gearbox housing. The tripping cushion can be locked and fixed by the cushion locking structure when the torsional cover is rotated anticlockwise, and then the tripping cushion cannot move vertically.

Abstract: An antenna array, including at least two antenna bays. Operating frequency bands of all of the at least two antenna bays are the same, each antenna bay includes at least one transmit channel or receive channel, and each antenna bay transmits data in a co-frequency co-time full duplex manner. Alternatively, operating frequency bands of two adjacent antenna bays of the at least two antenna bays are adjacent frequency bands or are separated by one or two frequency bands, each antenna bay includes at least one receive channel and at least one transmit channel, and each antenna bay transmits data in an asynchronous manner. An angle value between a line connecting center points of any two adjacent antenna bays of the at least two antenna bays and a horizontal line is acute. By using the present invention, isolation between antenna bays of the antenna array is increased.

Abstract: A scanning and imaging apparatus comprises a ray source configured to generate an X-ray and a detection device configured to receive an X-ray transmitted through an inspected object, wherein the ray source is configured to image the inspected object by emitting the X-ray to the inspected object. A radioactivity detector is configured to detect whether the inspected object comprises radioactive material synchronously with the process of scanning implemented by the scanning and imaging apparatus. In a case that the radioactivity detector detects radioactive material, an actual position of the radioactive material in an X-ray image of the inspected object obtained by the scanning and imaging apparatus is marked in the image. The above solutions improve the accuracy of displaying the position of the radioactive source in the X-ray image. Further, inspection of radioactive material can be implemented while scanning an image.

Abstract: The present disclosure relates to the field of terminal technologies, and discloses a service processing method and an electronic device. In the present disclosure, a plaintext message used for performing a service operation is provided in a second electronic device. In this case, when needing to perform service processing, a first electronic device may obtain, by means of encryption transmission between the first electronic device and the second electronic device, the plaintext message provided by the first electronic device, so as to perform service processing based on the plaintext message. No key exchange is involved in the interaction, and a private key of an electronic device is not exported from the device. Therefore, in this process, a device application scenario is significantly extended while information security is ensured.

Abstract: A self-locking device of an electric tool output shaft includes a main shaft, a power output disk, a stop ring, and a plurality of self-locking pins. An upper end surface of the power output disk is provided with a plurality of drive blocks. A bottom of the main shaft is inserted into the power output disk. An inner side of the power output disk is provided with a plurality of drive surfaces. An outer wall of a lower end of the main shaft is provided with a plurality of driven surfaces and a plurality of self-locking surfaces. The main shaft has the driven surfaces to lean against the drive surfaces and the power output disk to accomplish a power output function, and further has the self-locking surfaces to lean against the self-locking pins to accomplish a self-locking function.

Abstract: An apparatus and method are provided for configuring hardware to operate in multiple modes of operation during runtime. Included is a plurality of configurable hardware units each having a plurality of operand inputs for receiving operands, a plurality of outputs for outputting results, and at least one hardware unit configuration input for receiving at least one hardware unit configuration signal. Also included is a configurable interconnect fabric coupled between the configurable hardware units. The configurable interconnect fabric includes a plurality of fabric data inputs and fabric data outputs, and a fabric select input for receiving a fabric select signal. The configurable interconnect fabric is configured to interconnect the configurable hardware units, based on the fabric select signal. A configuration storage configured for containing at least one configuration bit pattern for operating the apparatus in one or more modes of operation and for configuring the hardware during runtime operations.

Abstract: A load detection circuit includes a first switch, a second switch, a low voltage output module, a high voltage output module, a detection module, and a control module. The detection module detects states of a load and outputs a detected result to the control module. The control module determines whether the load is normal and connected, according to the detected result. When the control module determines that the load is connected and short-circuited, or the load is connected and open-circuited, or the load is disconnected, the control module controls the high voltage output module to stop working, controls the second switch to be turned off, and controls the first switch to be turned on periodically. When the first switch is turned on, the detection module is powered by the low voltage output module. The present invention further provides an energy storage device with the load detection circuit.