Microsoft Technology Licensing, LLC

Krishna Chintalapudi

Perry Victor Lea

Stanley William Adermann

Gopala Srihari Narlanka

Steven William Ranta

Ranveer Chandra

Ramachandran Ramjee

Venkata N Padmanabhan

Shadi Abdollahian Noghabi

Peder Andreas Olsen

Joseph Michael Schaefer

Nissanka Arachchige Bodhi Priyantha

Gursharan Singh Sidhu

Manikanta Kotaru

Vishnu Navda

Eduardo Cuervo

Bozidar Radunović

Horia Vlad Balan

Anand Padmanabha Iyer

Monia Ghobadi

Anshul Rai

Romil Bhardwaj

Michael Buettner

Shadi Noghabi

Hao Yin

Doug Gallatin

Pouya Hamadanian

Rijurekha Sen

Thomas Pouget-abadie

A method of managing a wireless communication between a plurality of accessory devices and a host device includes, at the host device, establishing a data connection with a plurality of accessory devices, obtaining a radio ID for each accessory device of the plurality of accessory devices, grouping the plurality of accessory devices into at least one OFDMA device and at least one non-OFDMA device based at least partially on the radio IDs, sending a trigger signal to the at least one OFDMA device; and after receiving a first response signal from the at least one OFDMA device in response to the trigger signal, receiving a second response signal from the at least one non-OFDMA device.

Mixed standard accessory device communication utilizing host-coordinated transmission

The description relates to context-aware management of satellite images. One example can track a satellite relative to locations on earth, ground stations, and other satellites and identify parameters associated with the tracked satellite. The example can manage images captured by the satellite for individual locations based upon the identified parameters.

Satellite image management

A data processing system implements an acoustic delay detection technique for detecting and correcting inter-stream latency between two audio streams in a cloud-based computing environment. A first audio stream of game audio is sent to a controller or headset associated with the cloud-based computing environment, and a second audio steam of game audio is send to a display device associated with the cloud-based computing environment. An acoustic marker that is inaudible to human users is added to the second audio stream. A microphone associated with the controller or headset records audio content output by a speaker of the display device. The recording includes the acoustic marker. The gaming platform correlates this recording with the acoustic marker to determine a difference between the time that the controller played the audio and the time that the display device played the audio in order to determine and compensate for an inter-stream latency.

Synchronizing audio streams in cloud-based gaming environment

An electronic device includes a processor, a wireless communication device, and a hardware storage device. The hardware storage device has instructions stored thereon that, when executed by the processor, cause the electronic device to obtain a plurality of data channel personalities. Each of the data channel personalities includes a unique radio communication and network protocol for the wireless communication device. The instructions further cause the electronic device to select a data channel personality from the plurality of data channel personalities and transmit data to a host device using the wireless communication device and the radio communication and network protocol according to the selected data channel personality.

Accessory device communication utilizing multiple personalities

A first device includes a processor, a wireless communication device in data communication with the processor, and a hardware storage device in data communication with the processor. The hardware storage device includes instructions stored thereon that, when executed by the processor, causes the host device to compare a Quality of Server Subtype (QoS-Subtype) value to a matching rule of a policy table stored on the hardware storage device, determine a transmission policy based at least partially on the QoS-Subtype value, wherein the transmission policy includes a transmission rate with a modulation and coding scheme (MCS) index based at least partially on the QoS-Subtype, and transmit a transmission to a second device according to the transmission policy.

Multidimensional service differentiation for WiFi traffic

A method of managing wireless communication between electronic devices includes, at a first electronic device, transmitting a first downlink transmission from the first electronic device to a second electronic device and receiving a first response from the second electronic device at the first electronic device, wherein the first response includes a downlink channel quality information (CQI). The method further includes determining a per-subcarrier CQI based at least partially on the downlink CQI and determining an output modulation and coding scheme (MCS) based at least partially on the per-subcarrier CQI. After determining the output MCS, the method includes selecting a selected MCS based at least partially on the output MCS and setting an MCS of the first electronic device to the selected MCS.

Systems and methods for proactive wireless communication rate adaptation

A computing system including an edge computing device. The edge computing device may include an edge device processor configured to receive edge device contextual data including computing resource availability data. Based at least in part on the edge device contextual data, the edge device processor may select a processing stage machine learning model of a plurality of processing stage machine learning models and construct a runtime processing pipeline of one or more runtime processing stages including the processing stage machine learning model. The edge device processor may receive a runtime input, and, at the runtime processing pipeline, generate a runtime output based at least in part on the runtime input. The edge device processor may generate runtime pipeline metadata that indicates the one or more runtime processing stages included in the runtime processing pipeline. The edge device processor may output the runtime output and the runtime pipeline metadata.

Constructing processing pipeline at edge computing device

A computing device is provided, including a processor configured to receive imaging relevance data for a geographic area. The processor may be further configured to generate, based at least in part on the imaging relevance data, image mask instructions specifying a region of interest included in the geographic area. The processor may be further configured to transmit the image mask instructions to a satellite. The processor may be further configured to receive, from the satellite, filtered satellite image data of the region of interest. One or more deprioritized regions of the geographic area outside the region of interest may be excluded from the filtered satellite image data.

Mask for satellite image data

A host device includes a processor, a wireless communication device in data communication with the processor, and a hardware storage device in data communication with the processor. The hardware storage device has instructions stored thereon that, when executed by the processor, cause the host device to establish a wireless data channel with an accessory device and assign the wireless data channel to a resource unit with a bandwidth less than 20 MHz. The instructions further cause the host device to send a trigger signal to the accessory device and receive state data from the accessory device in response to the trigger signal.

Accessory device communication utilizing host-synchronized transmission

A virtual reality system including a head mounted display (HMD), a server, and a beam steering apparatus utilizes optical data transmission from the server to the HMD. The data rates/bandwidths provided by optical data transmission allow the amount of compression needed for data transfer (and the latency associated with compression) to the HMD to be reduced. The efficient offloading of processing tasks from the HMD to the server, reduces HMD power consumption, and enables the delivery of video having high resolution, framerate, and quality. As the user of the HMD moves, and the pose (position and orientation) of the HMD changes, the pose is provided to the server and beam steering apparatus. Based on the pose, the server renders image frames for transmission to the HMD and the beam steering apparatus directs an optical beam to the HMD to enable transmission of the image frames from the server to the HMD.

Mixed reality offload using free space optics

A 'Skip-Correlator' ensures carrier sensing symmetry between wireless devices of arbitrary transmission power levels, thereby enabling fair sharing of available spectrum of a wireless channel between the wireless devices. In various implementations, receivers of a wireless device receive wireless preambles from neighboring wireless transmitters. This preamble includes an indication of a transmission power level of the neighboring wireless transmitter. The wireless device then selects and correlates a subset of samples of the received preamble as a function of a transmission power level of that wireless device. The remaining samples of the preamble are skipped by the receiving wireless device, hence the use of the term 'Skip-Correlator.' Further, the wireless device computes a total preamble energy of the correlated samples of the received preamble. Finally, the wireless device implements carrier sensing symmetry between itself and the neighboring wireless transmitter as a function of the total preamble energy.

Skip-correlation based symmetric carrier sensing with multiple power levels

The security of Near Field Communications (NFC) against eavesdroppers is improved by encoding a hidden key, private to an initiating device, onto the carrier wave when a target device communicates its data via the carrier. The initiating device, in possession of the hidden key, is enabled to undo the scrambling effects of the hidden key to thereby privately interpret the data encoded onto the carrier wave by the target device. In various aspects, the hidden key is a one-time-use key that is randomly generated, used, and then discarded, preventing malicious parties from gaining the hidden key to later interpret intercepted data signals.

Secure near field communications

Inferring location of a mobile computing device in an indoor environment and crowdsourcing radio frequency data are described herein. A location of the mobile computing device in the indoor environment is inferred based upon known physical constraints of the indoor environment and data from an inertial sensor of the mobile computing device, wherein an initial location in the indoor environment of the mobile computing device is unknown, a heading offset of the mobile computing device is arbitrary, and wherein a placement of the mobile computing device on a user is arbitrary.

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Bellevue, WA, United States of America

Krishna Chintalapudi