Abstract: A memory system includes two or more memory controllers capable of accessing the same dynamic, random-access memory (DRAM), one controller having access to the DRAM or a subset of the DRAM at a time. Different subsets of the DRAM are supported with different refresh-control circuitry, including respective refresh-address counters. Whichever controller has access to a given subset of the DRAM issues refresh requests to the corresponding refresh-address counter. Counters are synchronized before control of a given subset of the DRAM is transferred between controllers to avoid a loss of stored data.

Abstract: A liquid lens article that includes: a first substrate; and an electrode disposed on a primary surface of the first substrate. The electrode comprises an electrically conductive structure disposed on the primary surface of the first substrate and an optical absorber structure disposed on the electrically conductive structure. The electrode comprises a reflectivity minimum of about 3% or less at a visible wavelength within a range of 390 nm to 700 nm, and a reflectivity of about 25% or less at an ultraviolet wavelength within a range of 100 nm to 400 nm. Further, the absorber structure comprises at least two metal oxide layers and at least one metal layer, each metal layer between two of the metal oxide layers. In addition, the electrode can comprise a sheet resistance from about 5 ?/sq to about 0.5 ?/sq.

Abstract: An interconnected stack of one or more Dynamic Random Access Memory (DRAM) die also has one or more custom logic, controller, or processor die. The custom die(s) of the stack include direct channel interfaces that allow direct access to memory regions on one or more DRAMs in the stack. The direct channels are time-division multiplexed such that each DRAM die is associated with a time slot on a direct channel. The custom die configures a first DRAM die to read a block of data and transmit it via the direct channel using a time slot that is assigned to a second DRAM die. The custom die also configures the second memory device to receive the first block of data in its assigned time slot and write the block of data.

Abstract: A stacked processor-plus-memory device includes a processing die with an array of processing elements of an artificial neural network. Each processing element multiplies a first operand—e.g. a weight—by a second operand to produce a partial result to a subsequent processing element. To prepare for these computations, a sequencer loads the weights into the processing elements as a sequence of operands that step through the processing elements, each operand stored in the corresponding processing element. The operands can be sequenced directly from memory to the processing elements or can be stored first in cache. The processing elements include streaming logic that disregards interruptions in the stream of operands.

Abstract: A liquid lens can include a first substrate with an interior recess. A second substrate with a bore can be bonded to the first substrate, whereby the interior recess of the first substrate and the bore of the second substrate cooperatively define at least a portion of a cavity of the liquid lens. A first liquid and a second liquid can be disposed in the cavity. A variable interface can be disposed between the first liquid and the second liquid, thereby forming a variable lens. The interior recess of the first substrate can be positioned outside of a sidewall projection of a sidewall surface of the cavity through the first substrate.

Abstract: A liquid lens can include a chamber with first and second fluids and an interface between the fluids. A first electrode can be insulated from the fluids, and a second electrode can be in electrical communication with the first fluid. A position of the interface can be based at least in part on a voltage applied between the first and second electrodes. A flexure can be configured to cause a window to displace axially along an optical axis to change a volume of the chamber. The flexure can extend laterally outward from the window substantially linearly, and can be formed between a first recess on an outer side of the liquid lens and a second recess on an inner side of the liquid lens. The second recess can extend laterally outward farther than the first recess such that the first recess and the second recess are offset from each other.

Abstract: A computer vision system includes a camera that captures a plurality of image frames in a target field. A user interface is coupled to the camera. The user interface is configured to perform accelerated parallel computations in real-time on the plurality of image frames acquired by the camera. The system provides identification of common movement pathways within a space.

Abstract: Methods, systems, and products help users recall memories and search for content of those memories. When a user cannot recall a memory, the user is prompted with questions to help recall the memory. As the user answers the questions, a virtual recollection of the memory is synthesized from the answers to the questions. When the user is satisfied with the virtual recollection of the memory, a database of content may be searched for the virtual recollection of the memory. Video data, for example, may be retrieved that matches the virtual recollection of the memory. The video data is thus historical data documenting past events.

Abstract: A liquid lens system includes a liquid lens and a heating device disposed in, on, or near the liquid lens. The liquid lens system can include a temperature sensor. The heating device can be responsive to a temperature signal generated by the temperature sensor. A camera module can include the liquid lens system. A method of operating a liquid lens includes detecting a temperature of the liquid lens and heating the liquid lens in response to the detected temperature. Various embodiments disclosed herein can reduce, impede, or prevent crosstalk between components of the liquid lens, or the effects thereof.

Abstract: In a first aspect, a testing assembly for conducting reliability tests on liquid lenses includes a liquid lens, and a test frame arranged to receive the liquid lens. The liquid lens includes a lens body defining a cavity, a first liquid disposed within the cavity, and a second liquid disposed within the cavity that is substantially immiscible with the first liquid such that an interface between the first liquid and the second liquid forms a lens. The test frame includes a front wall, and a back wall oriented substantially parallel to the front wall. The liquid lens mounts to at least one of the front wall or the back wall and the test frame simulates a smart device incorporating a liquid lens.

Abstract: A computer vision system includes a camera that captures a plurality of image frames in a target field. A user interface is coupled to the camera. The user interface is configured to perform accelerated parallel computations in real-time on the plurality of image frames acquired by the camera. The system provides an accountability measurement of impact of architecture and design work.

Abstract: A device includes a memory controller and a cache memory coupled to the memory controller. The cache memory has a first set of cache lines associated with a first memory block and comprising a first plurality of cache storage locations, as well as a second set of cache lines associated with a second memory block and comprising a second plurality of cache storage locations. A first location of the second plurality of cache storage locations comprises cache tag data for both the first set of cache lines and the second set of cache lines.

Abstract: A liquid lens can include two or more liquids enclosed in a chamber. The liquid lens can be configured to reduce the chromatic aberration produced when the meniscus formed at the interface of two of the liquids is tilted. This can be accomplished in a number of ways including selecting the liquids to maximize the refractive index difference and minimize the Abbe number difference.

Abstract: Various example embodiments for supporting scalable deterministic services in packet networks are presented. Various example embodiments for supporting scalable deterministic services in packet networks may be configured to support delay guarantees (e.g., finite end-to-end delay bounds) for a class of traffic flows referred to as guaranteed-delay (GD) traffic flows. Various example embodiments for supporting scalable deterministic services in packet networks may be configured to support delay guarantees for GD traffic flows of a network based on a queuing arrangement that is based on network outputs of the network, a packet scheduling method that is configured to support scheduling of packets of the GD traffic flows, and a service rate allocation rule configured to support delay guarantees for the GD traffic flows.

Abstract: A liquid lens can tilt a fluid interface, such as for optical image stabilization or off-axis focus. Tilting the interface can cause coma aberration or other dynamic wavefront error. The liquid lens can be driven to reduce the coma aberration or other dynamic wavefront error. For example, input shaped signals can be used. In some cases, the signals can be overdriven and/or underdriven, which can increase response time, and/or encourage settling of the interface.

Abstract: A computer vision system includes a camera that captures a plurality of image frames in a target field. A user interface is coupled to the camera. The user interface is configured to perform accelerated parallel computations in real-time on the plurality of image frames acquired by the camera. The system provides an identification of where collisions regularly occur.

Abstract: A fluid lens includes a refractive interface positioned between two transparent plates where at least one surface of one of the plates has a fixed radius of curvature configured to compensate for aberration produced by the fluid lens. The refracting interface can be formed by a meniscus formed between two immiscible liquids or by a membrane positioned between two fluids. A method of reducing aberration of a fluid lens includes determining a fixed radius of curvature for at least one surface of one of the plates that is sufficient to compensate for aberration produced by the fluid lens.

Abstract: An optical device can include an optical member, positioned at an interface between a first liquid and a second liquid. The optical member can be positionally actuated using the first and second liquid. The optical member may include a plastic lens, a ball lens, a ball lens array, an actuated liquid lens, a biconcave lens, a biconvex lens, a plano-convex, a plano-concave, a negative meniscus lens, a positive meniscus lens, a convex-concave lens, or a concave-convex lens, or any other suitable lens type. The optical member can be actuated in an optical tilt direction, in a left-right horizontal direction, in an up-down vertical direction, in a yaw rotational direction, in an axial direction, or a combination thereof. The optical member can be actuated using electrowetting, using magneto rheological fluids, using static electrofields, using electrical actuation, or using mechanical actuation, for example.

Abstract: Disclosed is a dynamic random access memory that has columns, data rows, tag rows and comparators. Each comparator compares address bits and tag information bits from the tag rows to determine a cache hit and generate address bits to access data information in the DRAM as a multiway set associative cache.

Abstract: A liquid lens includes an orientation sensor such as a gyroscope to compensate for the effects of motion. A raw gyroscope signal, including noise components, can be provided to the controller without processing by phase-shifting filters. One or more filters can be applied to the raw gyroscope signal to allow a band of frequencies to pass without introducing phase delay. The controller can use a feed forward system to generate control output signals based at least in part on the raw gyroscope signal, including noise components. The control output signals can be used to drive voltage signals to electrodes to compensate for motion.