Abstract: The present disclosure provides a locating method and a locating system for a smart shopping cart, a computer device and a storage medium. The method includes: constructing a locating fingerprint database of an smart shopping cart based on commodity attributes collected by an intelligent device and shelf label heartbeat signals received by a communication module; when a motion sensor obtains the motion data of the shopping cart body, the communication module sends all shelf label heartbeat signals received within a second preset time window to a server; the server matches all the shelf label heartbeat signals received within the second preset time window with the locating fingerprint database to obtain locating information of the smart shopping cart.

Abstract: A kitchen waste wastewater treatment equipment includes a reaction kettle, a discharging mechanism and a pressurizing mechanism. In the process of high-temperature and high-pressure thermal hydrolysis of wastewater in the present disclosure, the pressurizing disk in the pressurizing mechanism continuously moves downwards in a vacuum state in the reaction kettle, reducing the volume in the reaction kettle and thus increasing the pressure. The secondary pressurization of wastewater is achieved while using heating for high-temperature and high-pressure, and the high-temperature and high-pressure environment greatly improves the reaction rate of thermal hydrolysis. The thermal hydrolysis reaction also generates gas for further pressurization, which greatly improves the treatment efficiency of wastewater. Moreover, the pressurizing mechanism and the exhaust annular groove can separate the gas generated after thermal hydrolysis.

Abstract: A method for controlling movement of an unmanned aerial vehicle (UAV) includes controlling one or more propulsion units of the UVA to cause the UAV to operate according to a first set of altitude restrictions; assessing, with aid of the one or more processors and based on one or more criteria, whether to control the UAV to operate according to a second set of altitude restrictions; and controlling the one or more propulsion units to cause the UAV to operate according to the second set of altitude restrictions in response to the one or more criteria being fulfilled according to an assessing result. The first set of altitude restrictions constrain an altitude of the UAV relative to a first reference altitude. The second set of altitude restrictions constrain the altitude of the UAV relative to a second reference altitude.

Abstract: A method and system for locking the resonance frequency of ring resonators by using laser sources to emit a plurality of different wavelengths, applying a tagging signal to each of the wavelengths, multiplexing the tagged wavelengths using a wavelength division multiplexor, coupling the multiplexed tagged wavelengths onto a bus waveguide, detecting the multiplexed tagged wavelengths with a first photodetector disposed before a first ring resonator and a second photodetector disposed after a last ring resonator of a plurality of ring resonators, sending the signals detected by the first and second photodetector to a processor, which identifies and processes the tagging signals, generating a control signal for each ring resonator, by the processor and applying the control signals to phase shifters on each ring resonator of the plurality of ring resonators to tune and align the resonance wavelengths of the ring resonators with the wavelengths of the corresponding laser sources.

Abstract: A battery includes a housing, a plurality of cells disposed inside the housing, and a set of strap structures. Each cell comprises a plurality of positive electrode plates and a plurality of negative electrode plates, and each respective electrode plate has a respective tip. The set of strap structures includes one or more of a first strap structure, which includes a positive strap line, a negative strap line, and at least two bridging lines disposed between and connected with the positive strap line and the negative strap line. The negative strap line is connected with respective tips of a plurality of negative electrode plates in a cell. The positive strap line is connected with respective tips of a plurality of positive electrode plates in a different cell. The first strap structure, the set of strap structure, and a method of making the battery are also provided.

Abstract: Systems and methods disclosed for video compression, utilizing neural networks for predictive video coding. Processes employed combine multiple banks of neural networks with codec system components to carry out the coding and decoding of video data.

Abstract: Techniques are disclosed by which a coding parameter is determined to encode video data resulting in encoded video data possessing a highest possible video quality. Features may be extracted from an input video sequence. The extracted features may be compared to features described in a model of coding parameters generated by a machine learning algorithm from reviews of previously-coded videos, extracted features of the previously-coded videos, and coding parameters of the previously-coded videos. When a match is detected between the extracted features of the input video sequence and extracted features represented in the model, a determination may be made as to whether coding parameters that correspond to the matching extracted feature correspond to a tier of service to which the input video sequence is to be coded.

Abstract: An optical apparatus comprising an integrated germanium photodetector associated with a silicon nitride launch waveguide, the integrated germanium photodetector comprising a silicon layer, a germanium layer disposed atop the silicon layer, a plurality of conductive vias, at least one conductive via of the plurality of conductive vias being disposed atop the germanium layer, and a plurality of metal contacts each interconnected to each of the plurality of conductive vias; wherein the silicon nitride launch waveguide extends over a length of the silicon layer, and such that to create a coupling region between the silicon nitride launch waveguide and the germanium layer; and wherein, when an optical signal is launched into the silicon nitride launch waveguide, the optical signal is caused to be coupled into the integrated germanium photodetector at the coupling region, such that to be absorbed by the germanium layer.

Abstract: An intra-frame decoding method includes obtaining, from a video code stream, prediction mode information of a first signal component of a current block; determining a prediction mode of the first signal component of the current block from a prediction mode set of the first signal component of the current block according to the prediction mode information of the first signal component of the current block, where the prediction mode set of the first signal component of the current block includes at least one of a linear model above (LMA) mode and a linear model left (LML) mode; obtaining a predicted value of a first signal component sampling point of the current block; and obtaining a reconstructed value of the first signal component sampling point of the current block according to the predicted value of the first signal component sampling point of the current block.

Abstract: A method and system for locking the resonance frequency of ring resonators by using laser sources to emit a plurality of different wavelengths, applying a tagging signal to each of the wavelengths, multiplexing the tagged wavelengths using a wavelength division multiplexor, coupling the multiplexed tagged wavelengths onto a bus waveguide, detecting the multiplexed tagged wavelengths with a first photodetector disposed before a first ring resonator and a second photodetector disposed after a last ring resonator of a plurality of ring resonators, sending the signals detected by the first and second photodetector to a processor, which identifies and processes the tagging signals, generating a control signal for each ring resonator, by the processor and applying the control signals to phase shifters on each ring resonator of the plurality of ring resonators to tune and align the resonance wavelengths of the ring resonators with the wavelengths of the corresponding laser sources.

Abstract: A compute device implements a technique for facilitating selective access to hardware codec resources. The compute device executes, in a trusted execution environment, firmware for controlling graphics hardware of a device that supports a plurality of video codecs. The compute device obtains codec control data specific to the device from a remote system and then configures the firmware to implement a codec policy for selectively providing access to the plurality of video codecs based on the codec control data.

Abstract: A method and system for locking the resonance frequency of ring resonators by using laser sources to emit a plurality of different wavelengths, applying a tagging signal to each of the wavelengths, multiplexing the tagged wavelengths using a wavelength division multiplexor, coupling the multiplexed tagged wavelengths onto a bus waveguide, detecting the multiplexed tagged wavelengths with a first photodetector disposed before a first ring resonator and a second photodetector disposed after a last ring resonator of a plurality of ring resonators, sending the signals detected by the first and second photodetector to a processor, which identifies and processes the tagging signals, generating a control signal for each ring resonator, by the processor and applying the control signals to phase shifters on each ring resonator of the plurality of ring resonators to tune and align the resonance wavelengths of the ring resonators with the wavelengths of the corresponding laser sources.

Abstract: The invention provides an optical absorber and an optical absorption chip integrated with a dielectric optical waveguide. The optical absorber comprises a waveguide cladding, a dielectric optical waveguide core and an absorption material layer, wherein the waveguide cladding surrounds the dielectric optical waveguide core and the absorption material layer, the dielectric optical waveguide core comprises a first end and a second end, a radial dimension of the dielectric optical waveguide core gradually decreases from the first end to the second end, a material of the absorption material layer can be metal or silicon, and the absorption material layer can be located on an upper layer of the dielectric optical waveguide core, or on a side of the dielectric optical waveguide core, or on a lower layer of the dielectric optical waveguide core, so that the optical absorber can reduce back-reflection and allow light to be completely absorbed.

Abstract: An intra-frame decoding method includes obtaining, from a video code stream, prediction mode information of a first signal component of a current block, determining a prediction mode of the first signal component of the current block from a prediction mode set of the first signal component of the current block according to the prediction mode information of the first signal component of the current block, where the prediction mode set of the first signal component of the current block includes at least one of a linear model above (LMA) mode and a linear model left (LML) mode; obtaining a predicted value of a first signal component sampling point of the current block; and obtaining a reconstructed value of the first signal component sampling point of the current block according to the predicted value of the first signal component sampling point of the current block.

Abstract: An integrated receiver chip comprising: a first end and a second end; at least one optical input port disposed at the first end; a polarization manipulation device optically connected to one of the at least one optical input port, the polarization manipulation device being adapted to split an optical signal into a first and a second optical signals; a first and a second dispersion compensators each optically connected to the polarization manipulation device, the first and the second dispersion compensators each being adapted to selectively induce a dispersion on an optical signal propagating through the dispersion compensator; and a first and a second photodetectors optically connected to the first and the second dispersion compensators, respectively.

Abstract: The present invention provides a thermo-optical phase shifter including a cladding and n optical waveguide core, wherein the cladding surrounds the optical waveguide core, the optical waveguide core includes a first section and a second section, and dimensions of the first section and the second section are different. The thermo-optical phase shifter can improve that efficiency of the phase shifter and reduce optical crosstalk.

Abstract: The invention provides an optical sensor chip and an optical sensing system, wherein the optical sensor chip of the invention comprises a bottom cladding, a top cladding stacked on the bottom cladding and an optical waveguide core, the optical waveguide core is arranged between the top cladding and the bottom cladding, the top cladding is provided with an opened region for accommodating a sample to be tested, a part of the optical waveguide core is exposed through the opened region, the optical waveguide core comprises a first polarization rotator and a first polarization splitter, the first polarization splitter includes one input port and two output ports for outputting polarized light, the first polarization rotator is provided with a first end and a second end, the second end of the first polarization rotator is communicated with the input port of the first polarization splitter, and a dimension of the first polarization rotator gradually increases from the first end to the second end.

Abstract: A video delivery system generates and stores reduced bandwidth videos from source video. The system may include a track generator that executes functionality of application(s) to be used at sink devices, in which the track generator generates tracks from execution of the application(s) on source video and generates tracks having a reduced data size as compared to the source video. The track generator may execute a first instance of application functionality on the source video, which identifies region(s) of interest from the source video. The track generator further may downsample the source video according to downsampling parameters, and execute a second instance of application functionality on the downsampled video. The track generator may determine, from a comparison of outputs from the first and second instances of the application, whether the output from the second instance of application functionality is within an error tolerance of the output from the first instance of application functionality.

Abstract: An integrated Mach-Zehnder Interferometer comprising: an upper arm and a lower arm; and a differential thermo-optic phase shifter comprising a first heating element and a second heating element collocated with the upper arm and the lower arm, respectively, the first heating element having a first resistance and the second heating element having a second resistance, an upper pad electrically connected to the first heating element, the upper pad being adapted to receive a first voltage, a lower pad electrically connected to the second heating element, the lower pad being adapted to receive a second voltage, and a common pad electrically connected to the first heating element and the second heating element, the common pad being adapted to receive a third voltage; wherein, when the first, the second, and the third voltages are applied to the upper, the lower, and the common pads, respectively, a phase shift difference is thermally produced.

Abstract: A method for controlling movement of an unmanned aerial vehicle (UAV) includes controlling one or more propulsion units of the UVA to cause the UAV to operate according to a first set of altitude restrictions; assessing, with aid of the one or more processors and based on one or more criteria, whether to control the UAV to operate according to a second set of altitude restrictions; and controlling the one or more propulsion units to cause the UAV to operate according to the second set of altitude restrictions in response to the one or more criteria being fulfilled according to an assessing result. The first set of altitude restrictions constrain an altitude of the UAV relative to a first reference altitude. The second set of altitude restrictions constrain the altitude of the UAV relative to a second reference altitude.