Teradici Corporation

David Victor Hobbs

Ian Cameron Main

Patrick Ratto

Debra Dorey, Legal Representative

Kevin Bradley Citterelle

Ngo Bach Long

Kimberly Marie Tucker

Peter William Longhurst

William John Dall

Paul Andrew Helter

Daniel Jean Donat Doucette

Kurt Rien Fennig

Randall Dean Groves

Zhan Xu

Kevin Mlazgar

Bill Lin

Haw-Yuan Yang

Christopher G Hipp

Christopher Lawrence Topp

Charles Kevin Huscroft

John Richard Bradshaw

Shane Michael Waskiewich

The present invention describes exemplary embodiments of a method and apparatus for transmitting raster graphics. The method comprises determining a region, from 3D scene information for quality adjustment in a raster sequence of frames, wherein the raster sequence is generated by a graphics processing unit (the GPU) and consumed by an image encoder and the 3D scene information is provided by the GPU to the image encoder via shared memory and adjusting, by the image encoder, quality for the region according to the 3D scene information and a resource target for encodings of the raster sequence of frames.

Method and apparatus for rasterizing and encoding vector graphics

A method for communicating an image stream, one embodiment comprising negotiating, between a server and client, an MTCC identifying: a window as a portion of a display of the client, and an occluded portion of the window defined by the client; generating, by the server, complying with the MTCC, a sequence of image frames each comprising pixel data in a portion of the frame identified by the occluded portion; transmitting an encoding of a first frame of the sequence not including an encoding of the pixel data in the portion of the first frame; identifying, by the server, an event associated with the sequence; and transmitting, before communication between the server and the client regarding the event, by the server, information of the event in conjunction with an encoding of a second frame of the sequence including an encoding of the pixel data in the portion of the second frame.

Composition control method for remote application delivery

A method for transmitting a computer display image. In one embodiment, the method comprises determining a pixel boundary, referenced to a sub-tile boundary within a grid of tiles, for a changed portion of the image; identifying i) a uniform tile within the changed portion referenced to a first tile and ii) at least one hybrid sub-tile, associated with the sub-tile boundary, within the changed portion referenced to a second tile adjacent the first tile; engaging an SIMD vector processor to transform the uniform tile to an exit matrix, transform the at least one hybrid sub-tile to at least one DC coefficient, and transform the exit matrix to a first DC coefficient and the at least one DC coefficient to a second DC coefficient; quantizing, encoding and transmitting coefficients of the first and second tiles; and transmitting a binary mask specification for the changed portion adjusted to the sub-tile boundary.

Method and apparatus for layered wavelet image compression

The present invention describes exemplary embodiments of a method and apparatus for rasterizing and encoding vector graphics. The method comprises determining, by an image encoder, a difference between a transmission frame rate of an image encoder and a raster sequence frame rate of a raster sequence of images rasterized by a graphics processing unit (GPU); and adjusting, by the GPU, image detail of the raster sequence according to the difference.

A method and apparatus for image encoding. In one embodiment, the method comprises encoding a first image portion by a first encoder associated with a first processor at a host system; dynamically determining a requirement to encode a second image portion by the first encoder or by a second encoder associated with a second processor at the host system; and encoding, based on the requirement, the second image portion by the first encoder or the second encoder.

Method and system for remote computing session management

In one embodiment a method for communicating data comprises receiving, by a traffic manager between a plurality of virtual machines (VMs) and a network interface, (a) first data from a first VM in the plurality of VMs and en route via a first client computer to a first device, and (b) second data from a second VM in the plurality of VMs and en route via a second client computer to a second device; determining first attributes of the first data that provide a first communication requirement; determining second attributes of the second data that provide a second communication requirement; determining, based on available bandwidth of the network interface, a communications schedule associated with cumulative bandwidth of the first and second communication requirements; and transmitting, according to the communications schedule, the first data to the first client computer and the second data to the second client computer.

Apparatus and method for dynamic communication scheduling of virtualized device traffic based on changing available bandwidth

Methods of encoding an image stream. In one embodiment, the method comprises analyzing, for each block in a plurality of image blocks, changes from the same block in previous image frames; classifying each block as a non-video block if it has changed from a corresponding block in an immediately previous frame; re-classifying each non-video block as a video block if it meets video block requirements; encoding each non-video block having a first image type to a lossless quality level; encoding each non-video block having a second image type to a first lossy quality level; and encoding each video block to a second lossy quality level, wherein each of the lossless quality level, the first and the second lossy quality levels define a measurable image quality level of a decoded output of a corresponding block at a client computer, wherein the image frame comprises separate video insert, text and picture portions.

Progressive block encoding using region analysis

A method and apparatus for generating and communicating encoded images. In one embodiment, the apparatus comprises a graphics processor for rendering, for each display of a plurality of displays, a plurality of images from a plurality of drawing command sets, wherein each drawing command set is generated by a separate VM of a plurality of VMs in response to HID events received from a network location associated with a corresponding display; an image encoder for generating an encoding of each image of the plurality of images, each encoding comprising indications of changed and unchanged portions of a corresponding image; and a scheduler, coupled to the image encoder by a computer expansion bus, for scheduling generation of the encoding based on completion of (i) a rendering of an associated image from the plurality of images and (ii) a transmitting, via the IP network, of an encoding of a previously associated image.

Method and system for image sequence transfer scheduling

A method for managing media communications. In one embodiment, the method comprises establishing a session to a computer over a network and through a switch; generating first and second frames of an image stream; identifying updated regions of the first and the second frames, wherein the updated region of the first frame has a first size and the updated region of the second frame has a second size different from the first size; compressing, based on a value from a congestion manager, the updated regions of the first and the second frames to generate a first and a second encoding, respectively; transmitting the first encoding over the session at a first rate determined from the first size and the value; and transmitting the second encoding over the session at a second rate determined from the second size and the value, wherein the second rate is different from the first rate.

Switch-initiated congestion management method

Methods of encoding an image stream. In one embodiment, the method comprises generating, by a computer, a lossless encoding of a first portion of a frame of an image based on identifying the first portion as (i) changed since a previous frame of the image and (ii) comprising a first image type; generating an initial quality lossy encoding of a second portion of the frame based on identifying the second portion as (iii) changed since the previous frame and (iv) comprising a second image type; and generating a quality improvement encoding of a third portion of the frame based on identifying the third portion as (v) unchanged since the previous frame and (vi) encoded to less than a defined quality.

A method and apparatus for encoding a frame from a mixed content image sequence. In one embodiment, the method, executed under the control of a processor configured with computer executable instructions, comprises (i) generating, by an encoding processor, an image type mask that divides the frame into an unchanged portion, an object portion and a picture portion; (ii) producing lossless encoded content, by the encoding processor, from the object portion and the image type mask; (iii) generating, by the encoding processor, a filtered facsimile from the frame, the filtered facsimile generated by retaining the picture portion and filling the unchanged portion and the object portion with neutral image data; and (iv) producing, by the encoding processor, lossy encoded content from the filtered facsimile.

Method and apparatus for encoding mixed content image sequences

A method and apparatus for generating display status information for a computer in a remote computing environment. The method comprises receiving, from a remote computer, a first data set associated with a display image, where the first data set comprises an encoding of a source image to be rendered at the remote computer; decoding, at a client computer, the first data set to generate a first portion of the display image; and determining, from the first data set, a perceptual quality level for the display image. The apparatus comprises: a client resource for receiving display data and decoding the display data; a session monitor for determining a state of the display data decoded by the client resource; and a user interface for presenting the display status information, the display status information comprising the state of the display data.

Method and apparatus for providing a session status indicator

Method and apparatus for computing resources. One embodiment of the method comprises executing a first application on a computer CPU sub-system during CPU sub-system operation; controlling execution of the first application by an interface coupled to the computer and selectively coupled to the CPU sub-system; generating, by the first application and in response to an event from a user device of the interface, a first image for display; controlling, by the user device and during suspension of the CPU sub-system operation, execution of a second application, on a server coupled to the computer, that generates a second image compressed and transmitted as a compressed image by the server, the interface coupled to the server by a resource selector of the computer, a remote bridge of the computer and the IP network; receiving and decoding, via the remote bridge and during the suspension, the compressed image to generate a display image.

Method and apparatus for providing a hybrid computing environment

A method for communicating media between a host and a display system. In one embodiment the method comprises acquiring, by the host and via a wireless connection between the host and the display system, display information of the display system; generating, by the host, an image sequence at a resolution and a frame rate, the resolution and the frame rate determined from the display information; communicating, from the host to the display system and via the wireless connection, an encoding of the image sequence; and displaying, by the display system, a decoding of the encoding.

Growing community of inventors

Surrey, Canada

David Victor Hobbs