Meta Platforms, Inc.

Facebook, Inc.

Facebook Technologies, LLC

Meta Platforms Technologies, LLC

Ahmad Byagowi

Michael Maroye Lambeta

Ramesh Raskar

Hans-Juergen Schmidtke

Martin Mroz

Scott C Wiley

Zhang Jia

Andrew Hamilton Coward

Ethan Kroll Gordon

Vijay Mohan

Michael Epstein

Mikhail Smelyanskiy

Aravind Kalaiah

Kieran Tobias Levin

Andrew Gold

Georgi M Chalakov

Lingjun Wu

David Edwin Stroud

Marie K Herring

Cheng Chen

Hussameddine Kabbani

Matthew Ross Hattori

Nan Bai

Benjamin Maloon

Spencer John Paul Burns

Jones Udo-Akang

Nafissa Yakubova

Michel Ouellette

A clock synchronization method is disclosed. The method comprises receiving master timing synchronization data from a master clock device, wherein the master timing synchronization data is based at least in part on quantum data obtained from a first quantum device of the master clock device. The method comprises determining local timing synchronization data that is based at least in part on local quantum data obtained from a second local quantum device, wherein the second local quantum device is entangled with the first quantum device such that the local quantum data and the quantum data obtained from the first quantum device are identical at a same time. The method comprises using the determined local timing synchronization data and the received master timing synchronization data to determine a timing correction factor. The method comprises correcting a local system time using the timing correction factor.

Network clock synchronization with quantum systems in an entangled state

The disclosed computer-implemented method may include systems for optimizing a network environment that is synchronized with a precise time source. For example, a disclosed system can increase the accuracy and efficiency of the network environment with a method for smoothly handing off synchronization control within a group of time servers, each projecting a precise time. Additionally, another disclosed system can further increase the accuracy and efficiency of the network environment with a method for optimizing the latencies of the network environment when scheduling and routing tasks among the network environment members. Various other methods, systems, and computer-readable media are also disclosed.

Systems and methods for smooth transitions between time servers

One embodiment of the present application sets forth a wearable device that includes a display comprising a plurality of pixels and configured to emit light, and a micro-lens array located adjacent to the display, and configured to produce a light field by altering the light emitted by the display, where at least one of the display or the micro-lens array is configured to move from a first position to a second position that aligns a first pixel in the plurality of pixels relative to the micro-lens array.

Light field display tilting

A hardware module includes a high stability oscillator, a satellite signal receiver, a processor, and electrical contacts. The high stability oscillator is configured to provide a first timing reference output. The satellite signal receiver is configured to receive signals transmitted by location positioning satellites and provide a second timing reference output. The processor is configured to use the first timing reference output from the high stability oscillator and the second timing reference output from the satellite signal receiver to determine an absolute physical hardware clock value and provide the absolute physical hardware clock value to a host system. The electrical contacts are configured to allow the hardware module to be electrically and physically coupled to and removable from the host system as a single physical module.

Hardware module for determining a clock value based on multiple timing references

A first timing error of a network device is determined based at least in part on a first received network message from a timing synchronization source. At a first instance, it is determined whether the first timing error exceeds a threshold. In response to a determination at the first instance that the first timing error exceeds the threshold, a clock of the network device is corrected based at least in part on the first received network message. A second timing error of the network device is determined based at least in part on a second received network message from the timing synchronization source. At a second instance, it is determined whether the second timing error exceeds the threshold. In response to a determination at the second instance that the second timing error does not exceed the threshold, the clock of the network device is allowed to function without correction.

Adaptive correction of network device clock timing errors

A mechanism for thermal testing is described. A test vehicle includes a heating element, a thermal sensor and a processor. The processor is configured to control the heating element to output an amount of the energy per unit time. Temperature readings are received using the thermal sensor. A thermal property associated with a thermal mass is determined based at least in part the amount of the energy output and the received temperature readings.

Thermal test vehicle

A reference time associated with a satellite signal received at a clock synchronization source is determined, wherein the reference time is from a master reference clock. A recorded time associated with a corresponding satellite signal received at a remote clock synchronization destination is received from the remote clock synchronization destination via a network, wherein the received recorded time is from a remote clock to be synchronized with the master reference clock. A clock adjustment value is calculated based on a comparison of the determined reference time and the received recorded time. The clock adjustment value is provided to the remote clock synchronization destination, wherein the clock adjustment value is able to be utilized by the remote clock synchronization destination to adjust the remote clock to increase synchronization with the master reference clock.

Remote clock synchronization using network communication and satellite signals

A system including a baseboard management controller (BMC) and a socket is described. The BMC is configured to provide a management interface to a network device. The socket is configured to accept an edge connector of a removable storage card. The BMC is configured to access via the socket at least a portion of the firmware of the BMC stored on the removable storage card.

Baseboard-management-controller storage module

A trigger signal provided via a pulse-per-second input port of a network interface controller is detected. In response to the trigger signal, an internal hardware clock value of the network interface controller is recorded. The recorded internal hardware clock value is reported, wherein the reported internal hardware clock value is reported for use in determining a timing error of the network interface controller based at least in part on a comparison with a time value of another device that also received the trigger signal.

Reporting clock value of network interface controller for timing error analysis

A request to perform a compute task is received. A plurality of compute processor resources eligible to perform the compute task is identified, wherein the plurality of compute processor resources includes two or more of the following: a field-programmable gate array, an application-specific integrated circuit, a graphics processing unit, or a central processing unit. Based on an optimization metric, one of the compute processor resources is dynamically selected to perform the compute task.

Hardware accelerated compute kernels for heterogeneous compute environments

A system including a data center rack enclosure, a first aisle emulator, and a second aisle emulator. The data center rack enclosure is configured to retain a data center rack, which has a first side and a second side. The first aisle emulator is coupled with the data center rack enclosure and provides a first controlled test environment with first temperature and a first gas flow to the first side of the data center rack. The second aisle emulator is coupled with the data center rack enclosure and provides a second controlled test environment for the second side of the data center rack.

Rack-level aisle emulator

A mechanism for thermal testing is described. The system includes a heating element, a thermal sensor and a processor. The processor is configured to control the heating element to output an amount of the energy per unit time; receive temperature readings using the thermal sensor; and determine a thermal property associated with a thermal mass based at least in part the amount of the energy output and the received temperature readings.

A robotic-arm apparatus may include a robotic hand dimensioned to approximate a size and movement of a user's hand. The robotic-arm apparatus may also include one or more tactile-sensing pads coupled to at least a portion of the robotic hand, wherein a tactile-sensing pad is configured to detect surface data about a surface in a real-world environment. Additionally, the robotic-arm apparatus may include an actuator configured to move the robotic hand to mimic a motion of a glove worn by the user's hand, wherein the glove is configured to provide haptic feedback corresponding to the surface data to the user's hand. Various other apparatuses, systems, and methods are also disclosed.

Apparatus, system, and method for robotic sensing for haptic feedback

A mechanism for performing thermal testing is described. The system for performing thermal testing may include a housing, a heating element and a processor. The housing is configured to be compatible with a plurality of different types of transceiver form factors. The heating element is configured to be at a location within the housing to approximate an integrated circuit chip heat source of the plurality of different types of transceiver form factors. The processor is configured to automatically conduct a thermal test and provide thermal test results.

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Fremont, CA, United States of America

Ahmad Byagowi