Abstract: Sorting of produce, such as date palm fruit is achieve by receiving the unsorted fruit, using a plurality of sensors capable of sensing data for determining characteristics of the produce according to criteria comprising size, moisture or moisture content, and color. A control and evaluation unit, responsive to the sensed data, determines the characteristics of the produce and identifies each item of produce according to the characteristics as one of the predetermined categories. An air jet sorter is used to selectively divert the produce to the different ones of the output bins or ports according to the identified category for that produce.

Abstract: Various embodiments of the invention provide for an AC-coupling method and systems that utilize a nested loop circuit to generate a differential mode output that facilitates an offset compensation and a common mode output that facilitates DC-biasing of an active circuit. In embodiments, the nested loop circuit comprises a differential amplifier and a differential mode loop that generates a differential mode output and a common mode loop that uses a common mode voltage and a reference voltage to generate the common mode output.

Abstract: Examples disclosed herein involve a computing system configured to (i) obtain first sensor data captured by a first sensor of a vehicle during a given period of operation of the vehicle (ii) obtain second sensor data captured by a second sensor of the vehicle during the given period of operation of the vehicle, (iii) based on the first sensor data, localize the first sensor within a first coordinate frame of a first map layer, (iv) based on the second sensor data, localize the second sensor within a second coordinate frame of a second map layer, (v) based on a known transformation between the first coordinate frame and the second coordinate frame, determine respective poses for the first sensor and the second sensor in a common coordinate frame, and (vi) determine (a) a translation and (b) a rotation between the respective poses for the first and second sensors in the common coordinate frame.

Abstract: Examples disclosed herein involve a computing system configured to (i) obtain first image data captured by a first camera of a vehicle during a given period of operation of the vehicle, (ii) obtain second image data captured by a second camera of the vehicle during the given period of operation, (iii) based on the obtained first and second image data, determine (a) a candidate extrinsics transformation between the first camera and the second camera and (b) a candidate time offset between the first camera and the second camera, and (iv) based on (a) the candidate extrinsics transformation and (b) the candidate time offset, apply optimization to determine a combination of (a) an extrinsics transformation and (b) a time offset that minimizes a reprojection error in the first image data, where the reprojection error is defined based on a representation of at least one landmark that is included in both the first and second image data.

Abstract: A method of preparing a Metal Organic Framework (MOF) with an acoustically-driven microfluidic platform, the method comprising: depositing a liquid comprising MOF precursors on a piezoelectric substrate of an acoustic microfluidic platform, the MOF precursors comprising a metal ion and an organic ligand, applying acoustic irradiation to the liquid to induce azimuthal liquid recirculation, which causes formation of the MOF within the liquid, and isolating the MOF.

Abstract: Examples disclosed herein may involve a computing system that is operable to (i) generate first structure data from one or more first image data, wherein the first structure data comprises one or more visible features captured in the one or more first image data, (ii) generate further structure data from one or more further image data, wherein the further structure data comprises one or more visible features captured in the one or more further image data, (iii) determine pose constraints for the further structure data based on common visible features, (iv) determine a transformation of the further structure data relative to the first structure data using the determined pose constraints, and (v) generate combined structure data using the determined transformation to fuse the further structure data and the first structure data.

Abstract: Examples disclosed herein may involve a computing system that is operable to (i) generate a local map portion of a geographical environment based on sensor data captured by a device, wherein the local map portion comprises local map structure data generated using one or more map structure generation methods, (ii) determine a transformation of the local map structure data relative to existing map structure data of an existing map based on common visible features between the local map structure data and the existing map structure data, wherein the existing map structure data is aligned to a global coordinate system and is predetermined from a plurality of previously-generated map structure data, and (iii) determine a localization of the device within the global coordinate system using the determined transformation.

Abstract: Systems and methods for measuring the effective thermal conductivity of aggregate packed beds are described. Systems and methods may include an apparatus comprising a first assembly, a second assembly, and a cylindrical insulator. The first assembly may include a first faucet, a first brass cover, a first heat exchanger body, and a first aluminum plate. The second assembly may include a second faucet, a second brass cover, a second heat exchanger body, and a second aluminum plate. The first assembly and the second assembly may be placed into opposite ends of the cylindrical insulator. Aggregates may be placed inside the cylindrical insulator between the first and second assemblies. Temperature may be measured at a variety of points of contact on the two faces of a low thermal conductivity plate, and heat flux and effective thermal conductivity of packed bed of aggregates may be calculated.

Abstract: Embodiments of transceivers with one or more reconfigurable antennas are described. In one embodiment, a reconfigurable antenna transceiver includes a transmit chain, a receive chain, and a reconfigurable antenna having a plurality of reconfigurable modes. The transceiver may also include an antenna controller configured to set a mode of the reconfigurable antenna. According to other aspects, the transceiver may also include a signal processor configured to transmit a set of training symbols during a training interval. The antenna controller may be further configured to select a respective mode of the reconfigurable antenna for each training symbol in the set of training symbols. Additionally, the antenna controller may be configured to calculate a received Signal-of-Interest to Interferer Ratio (SIR) for each training symbol of the set of training symbols. In this context, a system utilizing a reconfigurable antenna may achieve significant rate improvement compared to half-duplex systems.

Abstract: Embodiments of full-duplex self-interference cancellation systems are described. In one embodiment, a full-duplex transceiver includes a digital signal processor that processes digital signals, a transmit chain that receives a first digital baseband signal from the digital signal processor and converts it to a first RF signal, a receive chain that receives a second RF signal and converts the second RF signal to a second digital baseband signal, and an auxiliary receive chain that receives a portion of the first RF signal and converts it to an auxiliary digital baseband signal. The transceiver may further include a self-interference canceller that applies a channel transfer function to the auxiliary digital baseband signal to generate a cancellation signal and subtracts the cancellation signal from the second digital baseband signal to cancel self-interference at the transceiver.

Abstract: Systems and methods for measuring the effective thermal conductivity of aggregate packed beds are described. Systems and methods may include an apparatus comprising a first assembly, a second assembly, and a cylindrical insulator. The first assembly may include a first faucet, a first brass cover, a first heat exchanger body, and a first aluminum plate. The second assembly may include a second faucet, a second brass cover, a second heat exchanger body, and a second aluminum plate. The first assembly and the second assembly may be placed into opposite ends of the cylindrical insulator. Aggregates may be placed inside the cylindrical insulator between the first and second assemblies. Temperature may be measured at a variety of points of contact on the two faces of a low thermal conductivity plate, and heat flux and effective thermal conductivity of packed bed of aggregates may be calculated.

Abstract: Systems and methods for cooling aggregate are described. Systems and methods may include a drum. The drum may include an aggregate inlet; a plurality of buckets arranged in a ring around a circumference of the drum, and a plurality of rings arranged along the length of the drum, wherein each of the plurality of buckets has openings that open into the interior of the drum; one or more radial donuts or radial webs within the interior of the drum; an aggregate outlet; and a cooling air supply.

Abstract: Embodiments of transceivers with one or more reconfigurable antennas are described. In one embodiment, a reconfigurable antenna transceiver includes a transmit chain, a receive chain, and a reconfigurable antenna having a plurality of reconfigurable modes. The transceiver may also include an antenna controller configured to set a mode of the reconfigurable antenna. According to other aspects, the transceiver may also include a signal processor configured to transmit a set of training symbols during a training interval. The antenna controller may be further configured to select a respective mode of the reconfigurable antenna for each training symbol in the set of training symbols. Additionally, the antenna controller may be configured to calculate a received Signal-of-Interest to Interferer Ratio (SIR) for each training symbol of the set of training symbols. In this context, a system utilizing a reconfigurable antenna may achieve significant rate improvement compared to half-duplex systems.

Abstract: Embodiments of full-duplex self-interference cancellation systems are described. In one embodiment, a full-duplex transceiver includes a digital signal processor that processes digital signals, a transmit chain that receives a first digital baseband signal from the digital signal processor and converts it to a first RF signal, a receive chain that receives a second RF signal and converts the second RF signal to a second digital baseband signal, and an auxiliary receive chain that receives a portion of the first RF signal and converts it to an auxiliary digital baseband signal. The transceiver may further include a self-interference canceller that applies a channel transfer function to the auxiliary digital baseband signal to generate a cancellation signal and subtracts the cancellation signal from the second digital baseband signal to cancel self-interference at the transceiver.

Abstract: Embodiments of full-duplex systems with reconfigurable antennas are described. In one embodiment, a full-duplex reconfigurable antenna transceiver includes a transmit chain, a receive chain, and a reconfigurable antenna having a plurality of reconfigurable modes. The transceiver may also include an antenna controller configured to set a mode of the reconfigurable antenna. According to other aspects, the transceiver may also include a signal processor configured to transmit a set of training symbols during a training interval. The antenna controller may be further configured to select a respective mode of the reconfigurable antenna for each training symbol in the set of training symbols. Additionally, the antenna controller may be configured to calculate a received Signal-of-Interest to Interferer Ratio (SIR) for each training symbol of the set of training symbols. In this context, a full-duplex system utilizing a reconfigurable antenna may achieve significant rate improvement compared to half-duplex systems.

Abstract: Embodiments of full-duplex self-interference cancellation systems are described. In one embodiment, a full-duplex transceiver includes a digital signal processor that processes digital signals, a transmit chain that receives a first digital baseband signal from the digital signal processor and converts it to a first RF signal, a receive chain that receives a second RF signal and converts the second RF signal to a second digital baseband signal, and an auxiliary receive chain that receives a portion of the first RF signal and converts it to an auxiliary digital baseband signal. The transceiver may further include a self-interference canceller that applies a channel transfer function to the auxiliary digital baseband signal to generate a cancellation signal and subtracts the cancellation signal from the second digital baseband signal to cancel self-interference at the transceiver.

Abstract: Systems and methods for cooling aggregate are described. Systems and methods may include a drum. The drum may include an aggregate inlet; a plurality of buckets arranged in a ring around a circumference of the drum, and a plurality of rings arranged along the length of the drum, wherein each of the plurality of buckets has openings that open into the interior of the drum; one or more radial donuts or radial webs within the interior of the drum; an aggregate outlet; and a cooling air supply.

Abstract: Embodiments of full-duplex systems with reconfigurable antennas are described. In one embodiment, a full-duplex reconfigurable antenna transceiver includes a transmit chain, a receive chain, and a reconfigurable antenna having a plurality of reconfigurable modes. The transceiver may also include an antenna controller configured to set a mode of the reconfigurable antenna. According to other aspects, the transceiver may also include a signal processor configured to transmit a set of training symbols during a training interval. The antenna controller may be further configured to select a respective mode of the reconfigurable antenna for each training symbol in the set of training symbols. Additionally, the antenna controller may be configured to calculate a received Signal-of-Interest to Interferer Ratio (SIR) for each training symbol of the set of training symbols. In this context, a full-duplex system utilizing a reconfigurable antenna may achieve significant rate improvement compared to half-duplex systems.

Abstract: Embodiments of full-duplex self-interference cancellation systems are described. In one embodiment, a full-duplex transceiver includes a digital signal processor that processes digital signals, a transmit chain that receives a first digital baseband signal from the digital signal processor and converts it to a first RF signal, a receive chain that receives a second RF signal and converts the second RF signal to a second digital baseband signal, and an auxiliary receive chain that receives a portion of the first RF signal and converts it to an auxiliary digital baseband signal. The transceiver may further include a self-interference canceller that applies a channel transfer function to the auxiliary digital baseband signal to generate a cancellation signal and subtracts the cancellation signal from the second digital baseband signal to cancel self-interference at the transceiver.

Abstract: One embodiment provides a method of performing packet identifier (PID) filtering of a digital video broadcasting-handheld (DVB-H) transport stream and includes processing a PID and a continuity counter (CC) sequence of the DVB-H transport stream, computing a number of mismatched bits between the PID and a desired PID, proceeding to a start of a reset state on a first-in-first-out (FIFO) queue of the DVB-H transport stream when a FIFO buffer becomes full, determining if a number of mismatched bits of a first packet in the FIFO buffer is less than a first threshold value, and proceeding to a start of a run algorithm state only if the number of mismatched bits of the first packet in the FIFO buffer is less than the first threshold value and if there is a valid CC sequence that includes the first packet.