Abstract: An illustrative example embodiment of an electronic device includes an integrated circuit component having a plurality of solder balls on one side. The substrate includes a first side adjacent the one side of the integrated circuit component. The substrate includes a plurality of openings. At least some of those openings are aligned with the solder balls. A cooling plate is situated toward a second side of the substrate. A thermally conductive material within the plurality of openings is thermally coupled with the cooling plate. At least some of the thermally conductive material is thermally coupled with the solder balls.

Abstract: A camera testing system for determining performance of a camera comprising an imaging sensor and a lens, the system comprising a processing system comprising at least one processor and memory. The processing system may be configured to: control the camera to capture, using the imaging sensor, a first image through the lens of a target disposed at a first distance from the camera; determine a first modulation transfer function (MTF) value from the first image; control the camera to capture, using the imaging sensor, a second image through the lens of the target disposed at a second distance from the camera that is different from the first distance; determine a second MTF value from the second image; and determine performance of the camera based on the first MTF value, the second MTF value and a difference between the first MTF value and the second MTF value.

Abstract: A camera includes a phased metalens positioned between an objective lens and an imager of the camera. The phased metalens is configured to adjust a focus plane of an image in a field of view of the camera in response to changes in an operating temperature of the camera. The phased metalens adjusts the focus plane for multiple frequencies or wavelengths light such that all light wave-fronts exiting the phased metalens arrive at the imager at a same time.

Abstract: This document describes techniques and systems of a radar system with an angle-finding process for sparse uniform arrays. The described radar system includes a processor and an antenna that can receive electromagnetic energy reflected by objects in the surrounding environment. The antenna includes a one-dimensional (1D) or two-dimensional (2D) sparse array. The processor can determine, using the received electromagnetic energy, a signal subspace associated with the objects that includes an invariance equation. Using an estimated solution to the invariance equation, the processor determines a solution to the invariance equation. The solution to the invariance equation is used to determine angular phases associated with the objects. The processor can then determine, using the angular phases, angles associated with the objects. In this way, the described angle-finding process enables the radar system with a sparse array to efficiently determine angles associated with objects without blind spots.

Abstract: The techniques of this disclosure relate to a vehicle-occupancy alert system. The system includes a controller circuit configured to receive occupant data from an occupancy-monitoring sensor configured to detect a presence of one or more objects inside a vehicle. The controller circuit is also configured to determine whether an operator of the vehicle has exited the vehicle based on the occupant data. The controller circuit is also configured to determine based on the occupant data that the one or more objects remain inside the vehicle for a time exceeding a first threshold after the operator has exited. The controller circuit is also configured to output an alert indicating the one or more objects remain inside the vehicle when the time exceeds the first threshold. The system can improve passenger safety by alerting the vehicle operator that a child remains in the vehicle unattended before the operator moves away from the vehicle.

Abstract: This document describes techniques and systems for vehicle localization based on radar detections in garages and other GNSS denial environments. In some examples, a system includes a processor and computer-readable storage media comprising instructions that, when executed, cause the system to obtain structure data regarding a GNSS denial environment and generate, from the structure data, radar localization landmarks. The radar localization landmarks include edges or corners of the GNSS denial environment. The instructions also cause the processor to generate polylines along or between the radar localization landmarks to generate a radar occupancy grid. The instructions further cause the processor to receive radar detections from one or more radar sensors and obtain a vehicle pose within the radar occupancy grid to localize the vehicle within the GNSS denial environment. In this way, the system can provide highly accurate vehicle localization in GNSS denial environments in a cost-effective manner.

Abstract: A device for processing data sequences by means of a convolutional neural network is configured to carry out the following steps: receiving an input sequence comprising a plurality of data items captured over time using a sensor, each of said data items comprising a multi-dimensional representation of a scene, generating an output sequence representing the input sequence processed item-wise by the convolutional neural network, wherein generating the output sequence comprises: generating a grid-generation sequence based on a combination of the input sequence and an intermediate grid-generation sequence representing a past portion of the output sequence or the grid-generation sequence, generating a sampling grid on the basis of the grid-generation sequence, generating an intermediate output sequence by sampling from the past portion of the output sequence according to the sampling grid, and generating the output sequence based on a weighted combination of the intermediate output sequence and the input sequence.

Abstract: An electrical architecture includes multiple nodal controllers, at least two power sources, and a power supply network. Each nodal controller includes at least one output port configured to be connected to an electrical load operating with a voltage of multiple different voltages. The at least two power sources are associated with the multiple different voltages and configured to supply the multiple nodal controllers through the power supply network. The power supply network includes a power line connecting the multiple nodal controllers to each other in a ring and is configured to supply the multiple nodal controllers with electrical power from the at least two power sources. Each nodal controller of the multiple nodal controllers is linked to the power line via a bidirectional DC/DC converter and is configured to control a sleep or a wake-up mode responsive to detection of a corresponding voltage transition within the power supply network.

Abstract: This document describes techniques, apparatuses, and systems for standard-definition (SD) to high-definition (HD) navigation route determination. An example route builder receives a navigation route generated for a host vehicle. The navigation route includes a list of waypoints generated by an SD map database. The route builder matches the list of waypoints to lane geometry data maintained in an HD map database and outputs HD navigation route to a vehicle controller. The HD navigation route includes the list of waypoints, additional waypoints, and lane geometry data. The vehicle controller can then operate the host vehicle in a roadway environment along the HD navigation route. In this way, the described techniques and systems can provide HD navigation routes required by some assisted-driving and autonomous-driving systems based on SD navigation routes.

Abstract: This document describes techniques and systems to alternate power-level scanning for ToF lidar systems. The described lidar system transmits an initial signal having a first power level of an alternating pattern of power levels. The initial signal is associated with an initial pixel of consecutive pixels. The lidar system then transmits a subsequent signal, which is associated with a subsequent pixel of the consecutive pixels, having a second power level. The transmission of the initial signal and the subsequent signal with the alternating pattern of power levels limits a total power level emitted by the lidar system during a time interval to comply with safety regulations. The alternating pattern of power levels also permits the lidar system to switch between a long-detection range and a short-detection range for consecutive pixels.

Abstract: Techniques and apparatuses are described that implement lateral-bin monitoring for radar target detection. In particular, a radar system, which is mounted to a moving platform, divides a region of interest that is associated with at least one side of the moving platform into multiple lateral bins. The radar system maps locations of detections to the lateral bins, and monitors respective quantities of consecutive frames in which detections occur within the lateral bins. The radar system determines that at least one object is present within one of the lateral bins responsive to a quantity of consecutive frames having detections within the lateral bin being equal to or greater than a threshold. By waiting for a lateral bin to have detections across multiple consecutive frames, the radar system can minimize the false-alarm rate without reducing sensitivity.

Abstract: An electrical safety system comprises a main safety device including a N-type transistor and an auxiliary safety device including a P-type transistor, alternately activated under command of a controller. The N-type transistor and the P-type transistor have the function of overcurrent protection, respectively in a first operating mode and in a second operating mode. The auxiliary safety device includes a passive component, connected in series with the P-type transistor, for providing a voltage drop when a current passes through the passive component, and a driving circuit for turning off the P-type transistor under control of the voltage drop exceeding a first threshold, in the second operating mode.

Abstract: This document describes vehicle localization using map and vision data. For example, this document describes a localization system that obtains a map centerline point and a vision centerline point of a lane of a roadway. The localization system also obtains the position of the vehicle. The localization system can then compare the map centerline point and the vision centerline point to generate a lateral and a longitudinal correction relative to the vehicle's position. The lateral and longitudinal corrections are used to generate a corrected position. In this way, the described localization system can provide accurate vehicle localization that addresses potential drift caused by lapsed or inaccurate positioning data and allows for the operation of assisted-driving and autonomous-driving systems at higher speeds and on roadways with tighter curves.

Abstract: An illustrative example camera device includes a substrate and a sensor supported on the substrate. The sensor is configured to gather image information. A lens is situated near the sensor and an electroactive polymer selectively causes relative movement between the sensor and the lens.

Abstract: A method of determining whether a planned trajectory of a first vehicle over a road along which the first vehicle and a second vehicle are traveling, is invalid, comprising: obtaining the planned trajectory, comprising a first state of the first vehicle for each of a plurality of time instants; obtaining a second state of the second vehicle for each time instant; determining, for each time instant, a respective lateral range extending from the second vehicle; and determining that the planned trajectory is invalid where, for the first and second states at one or more of the time instants: the first vehicle is within the lateral range and within a lane boundary region of the road; and a direction of a lateral velocity of the first vehicle is towards the second vehicle and a lateral acceleration of the first vehicle away from the second vehicle is smaller than a predetermined threshold.

Abstract: Electrical connector comprising a detection device for detecting potential overheating, which comprises an electrically conductive element and an electrically insulating element inserted between the electrically conductive element and a low-voltage line. The electrically conductive element exerts an elastic force on the insulating element. For example, the electrically conductive element is a spring. In the event of overheating, the insulating element deforms under the pressure of the electrically conductive element and enables an electrical connection between two low-voltage lines. The overheating is detected as a consequence of the electrical design of this connection between the low-voltage lines.

Abstract: This document describes techniques and systems for frequency division multiplexing (FDM) with polyphase shifters. A radar system can include transmitters, receivers, polyphase shifters, and a processor. The transmitters emit electromagnetic (EM) signals in an FDM scheme, and the receivers detect EM signals reflected by objects. The received EM signals include multiple channels. The processor controls the polyphase shifters to introduce phase shifts to the EM signals. The processor can also divide a Doppler-frequency spectrum of the received EM signals into multiple sectors representing a respective frequency range. Each channel is associated with a respective sector. The processor can determine, using non-coherent integration across the sectors, potential detections of the objects, including aliased and actual detections. The processor can then determine the actual detections. In this way, the described FDM techniques with polyphase shifters can resolve Doppler ambiguities in received EM signals.

Abstract: A method is provided for determining a mobility status of a target object located in an environment of a sensor configured to monitor a surrounding environment of a vehicle. According to the method, a detection angle of the target object is determined with respect to the sensor based on data acquired by the sensor, and an ideal beam vector for a stationary object is predicted based on the detection angle. The ideal beam vector and a measured beam vector obtained from the data acquired by the sensor are normalized, and a correlation of the normalized ideal beam vector and the normalized measured beam vector is determined. A score is determined based on the correlation of the normalized ideal and measured beam vectors and indicates whether the target object is stationary or moving.

Abstract: A cable assembly includes coaxially arranged inner and outer barrels. The outer barrel overlaps a portion of the inner barrel. The inner and outer barrels respectively include first and second features that cooperate with one another to form a retention feature. The cable assembly has a cable that has at least one wire surrounded by an inner insulator that is covered in a metallic shield. The metallic shield is arranged in between the inner and outer barrels. The first feature is arranged beneath the metallic shield, and the second feature is arranged over the metallic shield. At least one of the first and second features extends in a radial direction relative to the other of the first and second features to capture the metallic shield with the retention feature.

Abstract: A detection device includes at least one detection module communicatively coupled with a communication device. The detection module includes a controller circuit communicatively coupled with a first antenna. The first antenna receives first electromagnetic signals from a first plurality of antennae located within an interior of a first vehicle. The first antenna receives second electromagnetic signals from a second plurality of antennae located and within an interior of a second vehicle. The controller circuit determines a position of the communication device within the interior of the first vehicle relative to locations of the first plurality of antennae based on the first electromagnetic signals received by the first antenna. The controller circuit determines a position of the communication device within the interior of the second vehicle relative to locations of the second plurality of antennae based on the second electromagnetic signals received by the first antenna.