Abstract: This document describes techniques and apparatuses that implement an ultra-compact image sensor assembly. In some embodiments, a printed circuit board assembly comprises a multilayer printed circuit board (PCB) having an asymmetric core structure. A cavity extends from an exterior layer of the multilayer PCB to an exposed portion of an interior layer of the multilayer PCB. The interior layer can be formed on the asymmetric core structure or another PCB layer above the asymmetric core structure. An image sensor is mounted at least partially in the cavity and electrically connected to conductive pads embodied on the exposed portion of the interior layer of the multilayer PCB. By mounting the image sensor in the cavity, height and planar dimensions of the image sensor assembly can be reduced, thereby enabling thinner profile imaging devices.

Abstract: This disclosure generally relates to hypervisor memory virtualization. In an example, multiple page table stages may be used to provide a page table that may be used by a processor when processing a workload for a nested virtual machine. An intermediate (e.g., nested) hypervisor may request an additional page table stage from a parent hypervisor, which may be used to virtualize memory for one or more nested virtual machines managed by the intermediate hypervisor. Accordingly, a processor may use the additional page table stages to ultimately translate a virtual memory address for a nested virtual machine to a physical memory address.

Abstract: Examples of the present disclosure relate to generating optimal scanning trajectories for 3D scenes. In an example, a moveable camera may gather information about a scene. During an initial pass, an initial trajectory may be used to gather an initial dataset. In order to generate an optimal trajectory, a reconstruction of the scene may be generated based on the initial data set. Surface points and a camera position graph may be generated based on the reconstruction. A subgradient may be determined, wherein the subgradient provides an additive approximation for the marginal reward associated with each camera position node in the camera position graph. The subgradient may be used to generate an optimal trajectory based on the marginal reward of each camera position node. The optimal trajectory may then be used by to gather additional data, which may be iteratively analyzed and used to further refine and optimize subsequent trajectories.

Abstract: A computing device is provided that includes a processor, a primary power supply, and a voltage regulation module. The voltage regulation module is configured to determine a load line for the processor and monitor a voltage and a current to the processor. While monitoring the voltage and current, the voltage regulation module is further configured to regulate the voltage to the processor to trend toward a voltage setpoint defined by the load line. While regulating the voltage, the voltage regulation module is further configured to clamp the load line at a clamping voltage to limit the regulated voltage output by the voltage regulation module from falling below a predetermined device minimum operation voltage when the monitored current exceeds a device maximum current value. The voltage regulation module is further configured to output electrical power at the regulated voltage to the processor.

Abstract: Innovations in the area of prediction of block vector (“BV”) values improve encoding or decoding of blocks using intra block copy (“BC”) prediction. For example, some of the innovations relate to use of a default BV predictor with a non-zero value. Other innovations relate to use of a selected one of multiple BV predictor candidates for a current block. Still other innovations relate to use of a skip mode in which a current intra-BC-predicted block uses a predicted BV value.

Abstract: Example circuit implementations of Szegedy's quantization of the Metropolis-Hastings walk are presented. In certain disclosed embodiments, a quantum walk procedure of a Markov chain Monte Carlo simulation is implemented in which a quantum move register is reset at every step in the quantum walk. In further embodiments, a quantum walk procedure of a Markov chain Monte Carlo simulation is implemented in which an underlying classical walk is obtained using a Metropolis-Hastings rotation or a Glauber dynamics rotation. In some embodiments, a quantum walk procedure is performed in the quantum computing device to implement a Markov Chain Monte Carlo method; during the quantum walk procedure, an intermediate measurement is obtained; and a rewinding procedure of one or more but not all steps of the quantum walk procedure is performed if the intermediate measurement produces an incorrect outcome.

Abstract: Systems and methods are disclosed for executing instructions with a block-based processor. Instructions can be executed in any order as their dependencies arrive, but the individual instructions are committed in a serial fashion. Further, exception handling can be performed by storing transient state for an instruction block and resuming by restoring the transient state. This allows programmers to see intermediate state for the instruction block before the subject block has committed. In one examples of the disclosed technology, a method of operating a processor executing a block-based instruction set architecture includes executing at least one instruction encoded for an instruction block, responsive to determining that an individual instruction of the instruction block can commit, advancing a commit frontier for the instruction block to include all instructions in the instruction block that can commit, and committing one or more instructions inside the advanced commit frontier.

Abstract: An integrated circuit includes a pipeline of compare logic stages. The pipeline, at successive pipeline stages, determines whether each of a set of input symbols meets a corresponding programmable criteria. The compare logic stages each compare the set of input symbols to a respective programmable value. The compare logic stages also each provide, to a respective successive compare logic stage, a corresponding plurality of indicators of whether respective ones of the set of input symbols met the corresponding programmable criteria for that compare logic stage. The corresponding programmable criteria are configurable to be based at least in part on the corresponding plurality of indicators from a respective previous compare logic stage.

Abstract: A first part of a 3-dimensional object is generated for display and displayed on a display device. The first part has at least a base interface and a first interface. The displayed first part is caused to change shape. A second part of the 3-dimensional object is generated for display, the second part having at least a base interface. The second part is translated and oriented so that the base interface of the second part mates with the first interface of the first part when the second part is displayed on the display device. The second part is displayed on the display device with the base interface of the second part mating with the first interface of the first part.

Abstract: A method for controlling a redundant storage system is proposed. A write request to a redundant storage system is received (310). A dataset that is to be written into the redundant storage system by the write request is determined (320). A portion of the dataset is logged into the redundant storage system for data recovery in case that a fault occurs in the redundant storage system (330). Thus, only a portion of the dataset is logged and the amount of the logged data may be reduced compared with the conventional redundant storage system. Further, the redundant storage system may be recovered in response to a fault occurring in the redundant storage system.

Abstract: Described herein is a system and method for utilizing a protocol over RDMA network fabric between a first computing node and a second computing node. The protocol identifies a first threshold and a second threshold. A transfer request is received, and, a data size associated with the transfer request is determined. Based up the data size associated with the transfer request, one of at least three transfer modes is selected to perform the transfer request in accordance with the first threshold and the second threshold. Each transfer mode utilizes flow control and at least one RDMA operation. The selected transfer mode is utilized to perform the transfer request.

Abstract: Innovations in flexible reference picture management are described. For example, a video encoder and video decoder use a global reference picture set (“GRPS”) of reference pictures that remain in memory, and hence are available for use in video encoding/decoding, longer than conventional reference pictures. In particular, reference pictures of the GRPS remain available across random access boundaries. Or, as another example, a video encoder and video decoder clip a reference picture so that useful regions of the reference picture are retained in memory, while unhelpful or redundant regions of the reference picture are discarded. Reference picture clipping can reduce the amount of memory needed to store reference pictures or improve the utilization of available memory by providing better options for motion compensation. Or, as still another example, a video encoder and video decoder filter a reference picture to remove random noise (e.g., capture noise due to camera imperfections during capture).

Abstract: A server device and method are provided for use in predictive server-side rendering of scenes based on client-side user input. The server device may include a processor and a storage device holding instructions for an application program executable by the processor to receive, at the application program, a current navigation input in a stream of navigation inputs from a client device over a network, calculate a predicted future navigation input based on the current navigation input and a current application state of the application program, render a future scene based on the predicted future navigation input to a rendering surface, and send the rendering surface to the client device over the network.

Abstract: Examples are disclosed that relate to processing files between a local network and a cloud computing service. One example provides a computing device configured to be located between a local network and a cloud computing service, comprising a logic machine and a storage machine comprising instructions executable to receive, from a device within the local network, a file at a local share of the computing device, and in response to receiving the file, generate a file event indicating receipt of the file at the local share and provide the file event to a virtual machine executing on the computing device. The instructions are further executable to, based upon a property of the file, provide the file to a program operating within a container in the virtual machine to process the file, and send a result of executing the program on the file to the cloud computing service.

Abstract: Disclosed systems and methods include receiving, by a browser application, a web application data including a trusted source rule having a web application user identifier (ID) unique to a user of the web application, and upon determining by the browser application of a violation of the trusted source rule, transmitting a rule violation report, with the web application user ID, to a data processing system for analysis to determine a malicious manipulation of the browser application, and receiving at the user device, from the data processing system, an alert of malicious manipulation of the browser application, corresponding to the rule violation report.

Abstract: One example provides a method for authenticating a computing device received from a manufacturer, the method including establishing a secured connection with the computing device, receiving, from the computing device, a first set of security artifacts, and retrieving, from a secure cloud storage location, a second set of security artifacts, the second set of security artifacts including the EK public key and the PCR values for the computing device obtained during manufacturing. The method further comprises, when the first set of security artifacts matches the second set of security artifacts, then verifying the computing device as trusted and permitting communication between the computing device and a secured computing environment, and when the first set of security artifacts does not match the second set of security artifacts, then not verifying the computing device as trusted and not permitting communication between the computing device and the secured computing environment.

Abstract: A computing device includes a display, a logic machine, and a storage machine holding instructions executable to display a map via the display, and associate a note with location data defining a geographic location. The note is associated with an annotation displayable on the map. The annotation is associated with a location parameter defining a map location at which the annotation is displayed on the map corresponding to the geographic location associated with the note. The annotation is associated with a zoom parameter defining one or more map zoom levels at which the annotation is displayed on the map. The annotation is associated with a context parameter defining one or more computing device contexts with which the annotation is displayed on the map. A notification corresponding to the note is presented based on the computing device being located within a threshold distance of the geographic location.

Abstract: Detecting compromised devices and user accounts within an online service via multi-signal analysis allows for fewer false positives and thus a more accurate allocation of computing resources and human analyst resources. Individual scopes of analysis, related to devices, accounts, or processes are specified and multiple behaviors over a period of time are analyzed to detect persistent (and slow acting) threats as well as brute force (and fast acting) threats. Analysts are alerted to individually affected scopes suspected of being compromised and may address them accordingly.

Abstract: Innovations in control and use of chroma quantization parameter (“QP”) values that depend on luma QP values. More generally, the innovations relate to control and use of QP values for a secondary color component that depend on QP values for a primary color component. For example, during encoding, an encoder determines a QP index from a primary component QP and secondary component QP offset. The encoder maps the QP index to a secondary component QP, which has an extended range. The encoder outputs at least part of a bitstream including the encoded content. A corresponding decoder receives at least part of a bitstream including encoded content. During decoding, the decoder determines a QP index from a primary component QP and secondary component QP offset, then maps the QP index to a secondary component QP, which has an extended range.

Abstract: A method for accessing offline voicemail messages within a mobile messaging application may be provided. First, a voice mail message may be received and the voicemail message may be transcribed to text. Next, the voicemail message and the text transcription may be stored. The recipient may then be presented with a list of voicemail messages and the voicemail message may be retrieved in response to the recipient. The recipient may read or listen to the voicemail message or both. The recipient may also annotate the voicemail message.