Microsoft Technology Licensing, LLC

Webtv Networks, Inc.

Webtv Networks Inc. (microsoft)

John Allen Tardif

Shankar Moni

Avi Bar-Zeev

Joshua Owen Miller

Joseph C Bertolami

Kathryn Stone Perez

Robert Matthew Craig

Louis F Coffin, Iii

Michael G Love

Samuel A Mann

Jack A Scheuer

Alex Aben-Athar Kipman

Brian Lloyd Schmidt

Mark Stefan Grossman

Jason S Flaks

Donald M Gray

Robert Norman Heitkamp

Matthew L Bronder

Andrew Walters

Niranjan Achugundla Puttaswamy

Thomas Hamish Barter

Raymond Kirk Price

Giora Yahav

Sagi Katz

Jeffrey Neil Margolis

J Andrew Goossen

John Clavin

Michael Alan Dougherty

Harjit Singh

Algird Michael Gudaitis

Ankur Varma

Avishai Adler

Sunil Kumar Vemula

Sheethal Somesh Nayak

Padma Parthasarathy

Shipeng Li

Steven Nabil Bathiche

Feng Wu

Christopher Douglas Edmonds

Adam James Muff

Christian F Huitema

Scott Charles McEldowney

Dawson Yee

Ivan Jelev Tashev

Yan Lu

Andrew John Fuller

Mark James Finocchio

David Cohen

Robert L Crocco, Jr

Susan Elizabeth Carrie

Michael Baseflug

Wei Guo

Huifeng Shen

Nicholas Robert Baker

Kyungsuk David Lee

Eric Glenn Lang

Guy Gilboa

Gregory Theodore Gibson

Matt Bronder

Seshagiri Panchapagesan

Duncan James McKay

Jon Vincent

Stephen Z Au

Scott Henson

Eiko Junus

Yuqun Cao

Leo Shing

Raghu Murthi

Sajid Salim Topiwala

Shawn Pile

Randy Crane

Philip Greenhalgh

David Hayes

Xudong Ni

Embodiments of the present disclosure include techniques for moving data between electronic system components using buffers. A digital processor stores data generated in response to a series of commands in a first buffer. Commands are received with a reference to a second buffer. The digital processor tracks the last location that a data result was stored in the first buffer. When a data result fills the buffer, the remaining data is automatically stored in the second buffer. Downstream devices may empty full buffers. A client may receive an indication that a buffer is empty and subsequently send commands with a reference to empty buffer.

Systems and methods for moving data between system components

Systems and methods for preserving the quality of service for client applications having workloads for execution by a compute core or a hardware accelerator are described. A method for operating a hardware accelerator configured to process commands submitted by client applications to the hardware accelerator, where a workload can be executed either by a compute core or by the hardware accelerator, is described. The method includes queueing commands for execution of workloads in a first set of command queues and queueing commands for execution of workloads in a second set of command queues. The method includes workload processors executing workloads specified by commands in the first set of command queues and the second set of command queues in an order of execution that is determined based on output of a set of trackers configured to track one or more criteria for a selected set of command queues.

Preserving quality of service for client applications having workloads for execution by a compute core or a hardware accelerator

Technologies pertaining to accounting for pulse history effects are described herein. In connection with accounting for pulse history effects, an amount of time between a first current pulse and a second current pulse that are to be transmitted to a pulsed laser is determined. Based upon such an amount of time, a determination is made as to whether a porch pulse is to be prepended to the second current pulse. When the porch pulse is to be prepended to the second current pulse, an amplitude and duration of the porch pulse are computed based upon the amount of time. The porch pulse is transmitted to the pulsed laser immediately followed by the second current pulse, wherein the porch pulse pre-charges the pulsed laser for emitting a pulse of light based upon the second current pulse.

Pulse shaping to reduce pulse history effects in pulsed lasers

Technologies are described herein for an eye tracking that may be employed by devices and systems such as head mount display (HMD) devices. Light that is reflected from a user's eye may be specular or scattered. The specular light has an intensity or magnitude that may saturate the electronics. The presently disclosed techniques mitigate saturation by generating detected signals from an optical detector, evaluating the signal levels for the detected signal, and selectively gating the detected signals that have saturated. The remaining scattered signals can be combined to achieve a combined signal that can be converted into a digital signal without saturating the electronics, which can then be processed to form an image of the eye for identification purposes, for tracking eye movement, and for other uses. The described technologies provide a clear image without ambient light reflections or specular light interfering with the image.

Eye tracking imager with gated detectors receiving a specular reflection

A display system comprises a current source, pulse circuitry, a pulsed laser, control circuitry, and a display surface. The pulse circuitry outputs a first pulse of electrical current based upon electrical current emitted by the current source. The pulsed laser emits first light based upon the first pulse, wherein luminance of the first light is based upon a first amplitude of the first pulse. The control circuitry generates an estimate of pulse history effects on second light that is to be emitted by the pulsed laser, the estimate is generated based upon a parameter of the first pulse and a desired luminance of the second light. The control circuitry causes the pulse circuitry to output a second pulse of electrical current based upon the estimate. Based upon the second pulse, the pulsed laser emits second light with the desired luminance.

Pulse history compensation for scanned laser displays

A modulated light source comprises a laser diode and a drive circuit coupled operatively to the laser diode. The laser diode is configured to lase upon passing an above-threshold current for an accumulation period. The drive circuit is configured to draw a priming current through the laser diode over a priming period, the priming current being insufficient to cause the laser diode to lase during the priming period, but sufficient to shorten the accumulation period. The drive circuit is further configured to draw the above-threshold current through the laser diode after the priming period, thereby triggering emission from the laser diode following a shortened accumulation period.

Laser diode priming to reduce latency

A scanning display device includes a MEMS scanner, a controller, light source drivers, light sources and an image processor. The controller controls rotation of MEMS mirror(s) of the MEMS scanner. Each light source driver selectively drives a respective one of the light sources to thereby produce a respective light beam that is directed towards and incident on a MEMS mirror of the MES scanner. The image processor causes two of the light source drivers to drive two of the light sources to thereby produce two light beams, when a first portion of an image is being raster scanned by the MEMS scanner. The image processor causes only one of the light source drivers to drive only one of the light sources to thereby produce only one light beam, when a second portion of the image is being raster scanned by the MEMS scanner. Related methods and systems are also disclosed.

Foveated MEMS scanning display

A scanning display device includes a MEMS scanner having a biaxial MEMS mirror or a pair of uniaxial MEMS mirrors. A controller communicatively coupled to the MEMS scanner controls rotation of the biaxial MEMS mirror or uniaxial MEMS mirrors. A first light source is used to produce a first light beam, and second light source is used to produce a second light beam. The first and second light beams are simultaneously directed toward and incident on the biaxial MEMS mirror, or a same one of the pair of uniaxial MEMS mirrors, at different angles of incidence relative to one another. The controller controls rotation of the biaxial MEMS mirror or the uniaxial MEMS mirrors to simultaneously raster scan a first portion of an image using the first light beam and a second portion of the image using the second light beam. Related methods and systems are also disclosed.

Wide field of view scanning display

Examples are disclosed that related to scanning image display systems. In one example, a scanning display system comprises a laser light source comprising two or more offset lasers, a scanning mirror system configured to scan light from the laser light source in a first direction at a higher frequency, and in a second direction at a lower frequency to form an image, and a controller configured to control the scanning mirror system to scan the laser light an interlaced pattern to form the image, and to adjust one or more of a scan rate in the second direction and a phase offset between a first frame and a second frame of the interlaced image.

MEMS scanning display device

A system for dynamically adjusting a bias voltage for a laser diode or a light emitting diode is provided. An output voltage of the laser diode is measured and a level of a supply voltage applied to the laser diode is adjusted to change the bias voltage to the laser diode to manage power usage and avoid saturation of the laser diode. Also, a junction temperature of a laser diode may be estimated by mapping a measured output voltage and known current to device characteristic data based on temperature and the supply voltage adjusted in order to bias the laser diode to compensate for a temperature change. Further, data indicating an intensity level of data to be rendered by the laser diode is used to adjust the second supply voltage to bias the laser diode in advance of rendering the data.

Dynamic supply voltage control circuit for laser diode

Examples are disclosed that related to scanning image display systems. In one example, a scanning head-mounted display system includes a light source, a motion sensor, a scanning mirror system configured to scan light from the light source along at least one dimension to form an image, and a controller configured to control the scanning mirror system to scan the light to form the image, receive head motion data from the motion sensor, and adjust one or more of a scan rate and a phase offset between a first frame and a second frame of the image based upon the head motion data.

The subject disclosure is directed towards a technology that may be used in an audio processing environment. Nodes of an audio flow graph are associated with virtual mix buffers. As the flow graph is processed, commands and virtual mix buffer data are provided to audio fixed-function processing blocks. Each virtual mix buffer is mapped to a physical mix buffer, and the associated command is executed with respect to the physical mix buffer. One physical mix buffer mix buffer may be used as an input data buffer for the audio fixed-function processing block, and another physical mix buffer as an output data buffer, for example.

Mix buffers and command queues for audio blocks

A sensor manager provides dynamic input fusion using thermal imaging to identify and segment a region of interest. Thermal overlay is used to focus heterogeneous sensors on regions of interest according to optimal sensor ranges and to reduce ambiguity of objects of interest. In one implementation, a thermal imaging sensor locates a region of interest that includes an object of interest within predetermined wavelengths. Based on the thermal imaging sensor input, the regions each of the plurality of sensors are focused on and the parameters each sensor employs to capture data from a region of interest are dynamically adjusted. The thermal imaging sensor input may be used during data pre-processing to dynamically eliminate or reduce unnecessary data and to dynamically focus data processing on sensor input corresponding to a region of interest.

Region of interest segmentation

An apparatus includes one or more MEMS mirrors, a light source driver and a controller. The light source driver selectively drives one or more light emitting elements of a light source to thereby produce a light beam that is directed towards a same MEMS mirror. The controller controls rotation of the MEMS mirror(s) in a fast-axis direction and a slow-axis direction in order to raster scan an image using the light beam reflected from the MEMS mirror(s). In order to achieve a first line density in a first portion of the image being raster scanned and to achieve a second line density, that is less than the first line density, in a second portion of the image being raster scanned, the controller dynamically adjusts a speed at which one of the MEMS mirror(s) is rotated in the slow-axis direction. Related systems and methods are also disclosed herein.

Laser scan beam foveated display

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Sammamish, WA, United States of America

John Allen Tardif