Invention Grant
US08645585B2 System and method for dynamically configuring a serial data link in a display device
有权
在显示设备中动态配置串行数据链路的系统和方法
- Patent Title: System and method for dynamically configuring a serial data link in a display device
- Patent Title (中): 在显示设备中动态配置串行数据链路的系统和方法
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Application No.: US13157468Application Date: 2011-06-10
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Publication No.: US08645585B2Publication Date: 2014-02-04
- Inventor: David Wyatt , Lianghao Chen , David Matthew Stears
- Applicant: David Wyatt , Lianghao Chen , David Matthew Stears
- Applicant Address: US CA Santa Clara
- Assignee: NVIDIA Corporation
- Current Assignee: NVIDIA Corporation
- Current Assignee Address: US CA Santa Clara
- Agency: Patterson & Sheridan, LLP
- Main IPC: G06F3/00
- IPC: G06F3/00 ; G06F9/00

Abstract:
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.
Public/Granted literature
- US20120317607A1 SYSTEM AND METHOD FOR DYNAMICALLY CONFIGURING A SERIAL DATA LINK IN A DISPLAY DEVICE Public/Granted day:2012-12-13
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