Nvidia Corporation

David Matthew Stears

David Wyatt

Emmett Michael Kilgariff

Gerrit Ary Slavenburg

Rouslan Lyubomirov Dimitrov

Thomas Francis Fox

Thomas Edward Dewey

Ross Cunniff

Robert Jan Schutten

Christopher Thomas Cheng

Tony Tamasi

Leslie E Neft

Dat T Nguyen

Jesse S Clayton

Sarika Bhimkaran Khatod

Jensen Huang

Laurence Harrison

Ajay Kamalvanshi

Rudi Bloks

Murralidharan Chilukoor

Tom Petersen

Paul Van Der Kouwe

Robert Osborne

Lianghao Chen

A graphics server for remotely rendering a composite image and a method of use thereof. One embodiment of the graphics server includes: (1) a graphics renderer configured to render updates for a plurality of graphics windows within the composite image and (2) a display processing unit (DPU) configured to identify changed portions of the composite image and provide the changed portions to an encoder for encoding and subsequent transmission.

Graphics server for remotely rendering a composite image and method of use thereof

A method and apparatus for performing display image refresh in bursts to a display device. A buffered refresh controller includes capabilities to drive the display based on video signals generated from a local frame buffer at a first rate. The graphics controller may optimally be configured to burst a new frame of pixel data to the buffered refresh controller at a second rate to replace the previous frame of pixel data in the local frame buffer. The second rate is different than the first rate. Additionally, the graphics controller may send frames only when they contain new pixel data. By enabling the graphics controller to selectively transmit the new frame of pixel data at the second rate, higher than the first rate, the graphics controller may be placed in a power-saving state during at least a portion of each frame update.

Method and apparatus for performing burst refresh of a self-refreshing display device

A method and apparatus for controlling sparse refresh of a self-refreshing display device coupled to a graphics controller are disclosed. The display device includes capabilities to drive the display based on video signals generated from a local frame buffer. The graphics controller may optimally be placed in one or more power-saving states when the display device is operating in a panel self-refresh mode. When exiting the power-saving state to update the image displayed by the display device, a fast-resume initialization routine may be run to reconfigure the GPU when operating in a sparse refresh mode, i.e., where the image being displayed on the display device is updated infrequently. In such cases, the graphics controller may be configured to receive instructions and data from a central processing unit via an alternative low-bandwidth communications path instead of the high-bandwidth communications path used in normal operation.

Method and apparatus for controlling sparse refresh of a self-refreshing display device using a communications path with an auxiliary communications channel for delivering data to the display

A system, method, and computer program product are provided for synchronizing stereo signals. In use, stereo signals are synchronized amongst a plurality of display devices utilizing hardware.

Hardware-based system, method, and computer program product for synchronizing stereo signals

A system, method, and computer program product are provided for a dynamic display refresh. In use, a state of a display device is identified in which an entirety of an image frame is currently displayed by the display device. In response to the identification of the state, it is determined whether an entirety of a next image frame to be displayed has been rendered to memory. The next image frame is transmitted to the display device for display thereof, when it is determined that the entirety of the next image frame to be displayed has been rendered to the memory. Further, a refresh of the display device is delayed, when it is determined that the entirety of the next image frame to be displayed has not been rendered to the memory.

System, method, and computer program product for providing a dynamic display refresh

A technique is disclosed for dynamically reconfiguring a digital video link based on previously determined link training parameters. Reusing the previously determined link training parameters enables a no link training (NLT) protocol for quickly configuring the digital video link without the need for repeating a link training process. A display device advertises NLT capabilities information to a GPU indicating it can retain link characteristics for one or more link configurations. The GPU uses the NLT capabilities information to determine whether the display device is able to quickly transition to a specific link configuration using the NLT protocol, or to switch between configurations. The NLT capability allows a link to be advantageously quiesced and restored quickly while the GPU is transitioning in and out of power-saving sleep states, or placing the link in a more power efficient configuration, or higher-bandwidth higher-performance configuration. Additionally, the NLT capability allows a source to determine if the link configuration can be changed quickly while the display device retains the image, and thus can continue to present a constant screen for uninterrupted viewing.

System and method for dynamically configuring a serial data link in a display device

Growing community of inventors

San Jose, CA, United States of America

David Matthew Stears