Virtual channel starvation-free arbitration for switches
Granted: November 21, 2023
Patent Number:
11824791
A switching system having input ports and output ports and comprising an input queued (IQ) switch with virtual channels. Typically, only one virtual channel can, at a given time, access a given output port. Typically, the IQ switch includes an arbiter apparatus that controls the input ports and output ports to ensure that an input port transmits at most one cell at a time, and/or that an output port receives a cell over only one virtual channel, and/or an output port receives at most one…
Level-conversion circuits utilizing level-dependent inverter supply voltages
Granted: November 21, 2023
Patent Number:
11824533
Voltage level conversion circuits include PMOS pull-down devices or NMOS pull-up devices, and inverters with outputs that determine gate voltages of these devices. The inverters are powered by moving supply voltages, for example complementary supply voltages generated from a pair of cross-coupled inverters. The cross-coupled inverters may implement a data storage latch with the moving supply voltages generated from the internal data storage nodes of the latch.
Scattered geometry compression for ray tracing acceleration structures
Granted: November 21, 2023
Patent Number:
11823320
In examples, a list of elements may be divided into spans and each span may be allocated a respective memory range for output based on a worst-case compression ratio of a compression algorithm that will be used to compress the span. Worker threads may output compressed versions of the spans to the memory ranges. To ensure placement constraints of a data structure will be satisfied, boundaries of the spans may be adjusted prior to compression. The size allocated to a span (e.g., each…
Enhanced techniques for traversing ray tracing acceleration structures
Granted: November 14, 2023
Patent Number:
11816783
Enhanced techniques applicable to a ray tracing hardware accelerator for traversing a hierarchical acceleration structure are disclosed. For example, traversal efficiency is improved by combining programmable traversals based on ray operations with per-node static configurations that modify traversal behavior. The per-node static configurations enable creators of acceleration data structures to optimize for potential traversals without necessarily requiring detailed information about ray…
Encoding output for streaming applications based on client upscaling capabilities
Granted: November 14, 2023
Patent Number:
11818192
In various examples, the decoding and upscaling capabilities of a client device are analyzed to determine encoding parameters and operations used by a content streaming server to generate encoded video streams. The quality of the upscaled content of the client device may be monitored by the streaming servers such that the encoding parameters may be updated based on the monitored quality. In this way, the encoding operations of one or more streaming servers may be more effectively matched…
Parallel decompression of compressed data streams
Granted: November 14, 2023
Patent Number:
11817886
In various examples, metadata may be generated corresponding to compressed data streams that are compressed according to serial compression algorithms—such as arithmetic encoding, entropy encoding, etc.—in order to allow for parallel decompression of the compressed data. As a result, modification to the compressed data stream itself may not be required, and bandwidth and storage requirements of the system may be minimally impacted. In addition, by parallelizing the decompression, the…
Speaker adaptive end of speech detection for conversational AI applications
Granted: November 14, 2023
Patent Number:
11817117
In various examples, end of speech (EOS) for an audio signal is determined based at least in part on a rate of speech for a speaker. For a segment of the audio signal, EOS is indicated based at least in part on an EOS threshold determined based at least in part on the rate of speech for the speaker.
Emergency response vehicle detection for autonomous driving applications
Granted: November 14, 2023
Patent Number:
11816987
In various examples, audio alerts of emergency response vehicles may be detected and classified using audio captured by microphones of an autonomous or semi-autonomous machine in order to identify travel directions, locations, and/or types of emergency response vehicles in the environment. For example, a plurality of microphone arrays may be disposed on an autonomous or semi-autonomous machine and used to generate audio signals corresponding to sounds in the environment. These audio…
Automatic content recognition and information in live streaming suitable for video games
Granted: November 14, 2023
Patent Number:
11816890
In various examples, one or more Machine Learning Models (MLMs) are used to identify content items in a video stream and present information associated with the content items to viewers of the video stream. Video streamed to a user(s) may be applied to an MLM(s) trained to detect an object(s) therein. The MLM may directly detect particular content items or detect object types, where a detection may be narrowed to a particular content item using a twin neural network, and/or an algorithm.…
Unsupervised learning of scene structure for synthetic data generation
Granted: November 14, 2023
Patent Number:
11816790
A rule set or scene grammar can be used to generate a scene graph that represents the structure and visual parameters of objects in a scene. A renderer can take this scene graph as input and, with a library of content for assets identified in the scene graph, can generate a synthetic image of a scene that has the desired scene structure without the need for manual placement of any of the objects in the scene. Images or environments synthesized in this way can be used to, for example,…
Generalized acceleration of matrix multiply accumulate operations
Granted: November 14, 2023
Patent Number:
11816482
A method, computer readable medium, and processor are disclosed for performing matrix multiply and accumulate (MMA) operations. The processor includes a datapath configured to execute the MMA operation to generate a plurality of elements of a result matrix at an output of the datapath. Each element of the result matrix is generated by calculating at least one dot product of corresponding pairs of vectors associated with matrix operands specified in an instruction for the MMA operation. A…
Generalized acceleration of matrix multiply accumulate operations
Granted: November 14, 2023
Patent Number:
11816481
A method, computer readable medium, and processor are disclosed for performing matrix multiply and accumulate (MMA) operations. The processor includes a datapath configured to execute the MMA operation to generate a plurality of elements of a result matrix at an output of the datapath. Each element of the result matrix is generated by calculating at least one dot product of corresponding pairs of vectors associated with matrix operands specified in an instruction for the MMA operation. A…
Neural network control variates
Granted: November 14, 2023
Patent Number:
11816404
Monte Carlo and quasi-Monte Carlo integration are simple numerical recipes for solving complicated integration problems, such as valuating financial derivatives or synthesizing photorealistic images by light transport simulation. A drawback of a straightforward application of (quasi-)Monte Carlo integration is the relatively slow convergence rate that manifests as high error of Monte Carlo estimators. Neural control variates may be used to reduce error in parametric (quasi-)Monte Carlo…
Multi-view image analysis using neural networks
Granted: November 14, 2023
Patent Number:
11816185
Volumetric quantification can be performed for various parameters of an object represented in volumetric data. Multiple views of the object can be generated, and those views provided to a set of neural networks that can generate inferences in parallel. The inferences from the different networks can be used to generate pseudo-labels for the data, for comparison purposes, which enables a co-training loss to be determined for the unlabeled data. The co-training loss can then be used to…
Game event recognition
Granted: November 7, 2023
Patent Number:
11806616
A game-agnostic event detector can be used to automatically identify game events. Game-specific configuration data can be used to specify types of pre-processing to be performed on media for a game session, as well as types of detectors to be used to detect events for the game. Event data for detected events can be written to an event log in a form that is both human- and process-readable. The event data can be used for various purposes, such as to generate highlight videos or provide…
Preventing glitch propagation
Granted: November 7, 2023
Patent Number:
11809989
When a signal glitches, logic receiving the signal may change in response, thereby charging and/or discharging nodes within the logic and dissipating power. Providing a glitch-free signal may reduce the number of times the nodes are charged and/or discharged, thereby reducing the power dissipation. A technique for eliminating glitches in a signal is to insert a storage element that samples the signal after it is done changing to produce a glitch-free output signal. The storage element is…
Application of geometric acoustics for immersive virtual reality (VR)
Granted: November 7, 2023
Patent Number:
11809773
A virtual reality (VR) audio rendering system and method include spatializing microphone-captured real-world sounds according to a VR setting. In a game streaming system, when a player speaks through a microphone, the voice is processed by geometrical acoustic (GA) simulation configured for a virtual scene, and thereby spatialized audio effects specific to the scene are added. The GA simulation may include generating an impulse response using sound propagation simulation and dynamic…
Techniques for performing write training on a dynamic random-access memory
Granted: November 7, 2023
Patent Number:
11809719
Various embodiments include a memory device that is capable of performing write training operations. Prior approaches for write training involve storing a long data pattern into the memory followed by reading the long data pattern to determine whether the data was written to memory correctly. Instead, the disclosed memory device stores a first data pattern (e.g., in a FIFO memory within the memory device) or generates the first data pattern (e.g., using PRBS) that is compared with a…
Contention tracking for processor cache management
Granted: November 7, 2023
Patent Number:
11809319
The technology disclosed herein involves tracking contention and using the tracked contention to manage processor cache. The technology can be implemented in a processor's cache controlling logic and can enable the processor to track which locations in main memory are contentious. The technology can use the contentiousness of locations to determine where to store the data in cache and how to allocate and evict cache lines in the cache. In one example, the technology can store the data in…
Heterogenous voltage-based testing via on-chip voltage regulator circuits
Granted: November 7, 2023
Patent Number:
11808805
One embodiment of the present invention sets forth an integrated circuit. The integrated circuit includes a plurality of subunits associated with a plurality of operating voltages. The integrated circuit also includes one or more voltage regulator circuits that convert a first input voltage into a first plurality of output voltages during a first test, wherein the plurality of output voltages is delivered to the plurality of subunits via a plurality of output channels.
