Browse Prior Art Database

Method for a low-cost mechanism for video redirection

IP.com Disclosure Number: IPCOM000010226D
Publication Date: 2002-Nov-06
Document File: 3 page(s) / 107K

Publishing Venue

The IP.com Prior Art Database

Abstract

Disclosed is a method for a low-cost mechanism for video redirection. Benefits include improved functionality.

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Method for a low-cost mechanism for video redirection

Disclosed is a method for a low-cost mechanism for video redirection. Benefits include improved functionality.

Background

              Conventionally, software solutions provide the capability to direct video to a remote computer for display. These solutions require that the remote system is up and running. If the system software crashes or has not yet booted, the video cannot be displayed.

              Existing hardware solutions to video redirection, require local buffering on an adapter card with added cost due to requiring memory. Other solutions require that the chipset components implement peer-to-peer capabilities, which are generally considered high-risk implementations and typically undesirable due to scheduling impacts.

General description

              The disclosed method is the redirection of video for display at a remote location. This capability enables an IT manager to manage one or many computers from a remote location (see Figure 1). The method does not require local memory and is not peer to peer.

              Server platforms use off-the-shelf video adapters to minimize platform cost. The disclosed method does not require any alterations to existing graphics adapters.

              The key elements of the disclosed method include:

•             Chipset memory reservation capability

•             Chipset mirror logic

•             LAN video fetching logic

Advantages

Some implementations of the disclosed structure and method provide one or more of the following advantages:

              The disclosed method provides advantages, including improved functionality due to the capability to direct video to a remote computer for display without requiring local memory or a peer-to-peer connection.

Detailed description

              The disclosed method is special-purpose logic in the chipset that mirrors CPU writes to the graphics controller frame buffer memory. The chipset mirrors the video control registers so th...