Abstract: A reconfigurable device is provided for splitting optical beams. The device includes an input port configured to receive an input beam including at least two primary wavelengths, a tunable splitter configured to separate the input beam into at least two beams via at least two routes corresponding to the at least two primary wavelengths, wherein each of the at least two routes is configured to propagate one of the at least two primary wavelengths of the input beam, wherein the tunable splitter includes a bottom electrode, a substrate on the bottom electrode, core segments arranged on the substrate, a top layer, support segments to connect the substrate and the top layer, a top electrode on the top layer, a controllable refractive index layer arranged to fill gaps between the substrate, the support segments, and the top layer; and at least two output ports configured to transmit the at least two beams propagated via the at least two routes.

Abstract: A computer-implemented method is provided for designing a metalens. The metalens has a metasurface including nano-structures arranged on a substrate based on preliminary simulation data.

Abstract: Embodiments of the present disclosure disclose a method and a system for training a neural network for improving adversarial robustness. The method includes collecting a plurality of data samples comprising clean data samples and adversarial data samples. The training of the neural network includes training of a probabilistic encoder to encode the plurality of data samples into a probabilistic distribution over a latent space representation. In addition, the training of the neural network comprising training of a classifier to classify an instance of the latent space representation to produce a classification result. In addition, the method includes training shared parameters of a first instance of the neural network using the clean data samples and a second instance of the neural network using the adversarial data samples. Further, the method includes outputting the shared parameters of the first instance of the neural network and the second instance of the neural network.

Abstract: A system for providing resistance in an exercise machine. The system includes a motor, at least one loop drive attached to the motor. A carriage is coupled to the loop drive. The carriage moves in a first direction when the motor is turned in a first direction and a second direction when the motor is turned in a second direction. At least one sensor is attached to the carriage, wherein the at least one sensor is configured to detect external force on the carriage. Information from the sensor indicates external force on the carriage. The information is used to determine a movement of the carriage in response to the external force. The motor is instructed to turn the loop drive to apply the movement.

Abstract: A data conversion system includes an interface to receive path data, a memory to store a computer-executable program including a lattice full algorithm and a dynamic programming algorithm, a processor, in connection with the memory, configured to execute the computer-executable program.

Abstract: A computer-based system trains a neural network by solving a double layer optimization problem. The system includes an input interface to receive an input to the neural network and labels of the input to the neural network; a processor to solve a double layer optimization to produce parameters of the neural network, and an output interface to output the parameters of the neural network. The double layer optimization includes an optimization of a first layer subject to an optimization of a second layer. The optimization of the first layer minimizes a difference between an output of the neural network processing the input and the labels of the input to the neural network, the optimization of the second layer minimizes a distance between a non-negative output vector of each layer and a corresponding input vector to each layer. The input vector of a current layer is a linear transformation of the non-negative output vector of the previous layer.

Abstract: Techniques for code-free automated machine learning (ML) are described. Users can train high-quality ML models and pipelines without necessarily needing to write code by providing a training dataset to a code-free machine learning service. The service may deploy an ML orchestration function and a storage location on behalf of a user. When a modification is made to the storage bucket, such as by the user providing a training dataset, the orchestration function is invoked and can automatically initiate an AutoML process using at least the training data to train multiple ML model variants. The resultant ML model(s) and associated metrics can be provided to the user, deployed behind an endpoint, and/or used to generate inferences.

Abstract: A lighting apparatus for providing uniform irradiance is provided. The lighting apparatus includes a light source configured to emit rays toward a polygonal target region, and a lens configured to uniformize irradiance from the light source to the target region, wherein sag of the lens and normals along a boundary of the lens are arranged so as to illuminate a perimeter of the target region based on an edge-ray mapping, wherein a lens surface is formed based on polyharmonic spline interpolations so as to smoothly illuminate an interior of the target region, wherein the irradiance is uniformized by argumenting light field tailoring of the lens, wherein the light field tailoring is augmented to maintain to maintain the irradiance perimeter.

Abstract: A system for providing resistance in an exercise machine. The system includes a motor, at least one loop drive attached to the motor. A carriage is coupled to the loop drive. The carriage moves in a first direction when the motor is turned in a first direction and a second direction when the motor is turned in a second direction. At least one sensor is attached to the carriage, wherein the at least one sensor is configured to detect external force on the carriage. Information from the sensor indicates external force on the carriage. The information is used to determine a movement of the carriage in response to the external force. The motor is instructed to turn the loop drive to apply the movement.

Abstract: Devices, systems and methods including an optic having an optical surface partitioned into a plurality of facets. Wherein a geometry of the plurality of facets are configured to rearrange the rays in an incident light field to form a desired irradiance pattern on a projection surface, partitioned into a plurality of pixels, each of which may receive light from a multiplicity of facets. Wherein the configured geometry of the plurality of facets is corrected to minimize a difference between an observed irradiance pattern and a desired irradiance pattern provided by a user.

Abstract: A data conversion system includes an interface to receive path data, a memory to store a computer-executable program including a lattice full algorithm and a dynamic programming algorithm, a processor, in connection with the memory, configured to execute the computer-executable program.

Abstract: Devices, systems and methods including an optic having an optical surface partitioned into a plurality of facets. Wherein a geometry of the plurality of facets are configured to rearrange the rays in an incident light field to form a desired irradiance pattern on a projection surface, partitioned into a plurality of pixels, each of which may receive light from a multiplicity of facets. Wherein the configured geometry of the plurality of facets is corrected to minimize a difference between an observed irradiance pattern and a desired irradiance pattern provided by a user.

Abstract: A system for providing resistance in an exercise machine. The system includes a motor, at least one drive screw attached to the motor. A carriage is coupled to the drive screw. The carriage moves in a first direction when the drive screw is turned in a first direction and a second direction when the drive screw is turned in a second direction. At least one sensor is attached to the carriage, wherein the at least one sensor is configured to detect external force on the carriage. Information from the sensor indicates external force on the carriage. The information is used to determine a movement of the carriage in response to the external force. The motor is instructed to turn the drive screw to apply the movement.

Abstract: A system for providing resistance in an exercise machine. The system includes a motor, at least one loop drive attached to the motor. A carriage is coupled to the loop drive. The carriage moves in a first direction when the motor is turned in a first direction and a second direction when the motor is turned in a second direction. At least one sensor is attached to the carriage, wherein the at least one sensor is configured to detect external force on the carriage. Information from the sensor indicates external force on the carriage. The information is used to determine a movement of the carriage in response to the external force. The motor is instructed to turn the loop drive to apply the movement.

Abstract: A system for providing resistance in an exercise machine. The system includes a motor, at least one loop drive attached to the motor. A carriage is coupled to the loop drive. The carriage moves in a first direction when the motor is turned in a first direction and a second direction when the motor is turned in a second direction. At least one sensor is attached to the carriage, wherein the at least one sensor is configured to detect external force on the carriage. Information from the sensor indicates external force on the carriage. The information is used to determine a movement of the carriage in response to the external force. The motor is instructed to turn the loop drive to apply the movement.

Abstract: A battery pack is provided for a mobile communication device, comprising a casing defining a cavity that conforms, at least partially, to the outer shape of the mobile communication device and one or more rechargeable power cells housed within the thickness of the casing. An internal interface engages a corresponding interface on the mobile communication device to provide power from the one or more rechargeable cells to the mobile communication device. An external interface is electrically coupled to the internal interface in order to transmit signals from the mobile communication device to an external device and may further serve to recharge the one or more rechargeable power cells. The battery pack may also serve as an extendible platform by providing additional integrated communication interfaces and/or processors that can be utilized by the mobile communication device to extend its communication and/or processing capabilities.

Abstract: A battery pack is provided for a mobile communication device, comprising a casing defining a cavity that conforms, at least partially, to the outer shape of the mobile communication device and one or more rechargeable power cells housed within the thickness of the casing. An internal interface engages a corresponding interface on the mobile communication device to provide power from the one or more rechargeable cells to the mobile communication device. An external interface is electrically coupled to the internal interface in order to transmit signals from the mobile communication device to an external device and may further serve to recharge the one or more rechargeable power cells. The battery pack may also serve as an extendible platform by providing additional integrated communication interfaces and/or processors that can be utilized by the mobile communication device to extend its communication and/or processing capabilities.

Abstract: A computer-based system trains a neural network by solving a double layer optimization problem. The system includes an input interface to receive an input to the neural network and labels of the input to the neural network; a processor to solve a double layer optimization to produce parameters of the neural network, and an output interface to output the parameters of the neural network. The double layer optimization includes an optimization of a first layer subject to an optimization of a second layer. The optimization of the first layer minimizes a difference between an output of the neural network processing the input and the labels of the input to the neural network, the optimization of the second layer minimizes a distance between a non-negative output vector of each layer and a corresponding input vector to each layer. The input vector of a current layer is a linear transformation of the non-negative output vector of the previous layer.

Abstract: An optic to transform incident light emitted by a light source to form an irradiation pattern on a projection surface has a freeform surface formed by a union of an aspheric lens and a collection of Cartesian ovals. Each Cartesian oval is a lens focusing the incident light to a point and the collection of Cartesian ovals directs the incident light to a collection of points forming a border of the irradiation pattern. The aspheric lens is a portion of a refractive lens directing the incident light to form an interior of the irradiation pattern. The aspheric lens is combined with the collection of Cartesian ovals to form the union, such that each Cartesian oval shares a radiant focus of the refractive lens and makes a tangential contact with the surface of the aspheric lens at a single point.

Abstract: A battery pack is provided for a mobile communication device, comprising a casing defining a cavity that conforms, at least partially, to the outer shape of the mobile communication device and one or more rechargeable power cells housed within the thickness of the casing. An internal interface engages a corresponding interface on the mobile communication device to provide power from the one or more rechargeable cells to the mobile communication device. An external interface is electrically coupled to the internal interface in order to transmit signals from the mobile communication device to an external device and may further serve to recharge the one or more rechargeable power cells. The battery pack may also serve as an extendible platform by providing additional integrated communication interfaces and/or processors that can be utilized by the mobile communication device to extend its communication and/or processing capabilities.