The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 10, 2009
Filed:
May. 25, 2001
Ruiguo Yang, Boca Raton, FL (US);
Henry Collins, High Wycombe, GB;
Ruiguo Yang, Boca Raton, FL (US);
Henry Collins, High Wycombe, GB;
Citrix Systems, Inc., Fort Lauderdale, FL (US);
Abstract
The performance of distributed systems can be improved when a server remotely controls off-screen surfaces at a client coupled to the server via a communications network. The server instructs the client to form an off-screen surface exhibiting a number of particular attributes. The client selects and allocates a particular memory region and forms the off-screen surface therein, as instructed by the server. The server subsequently provides the client with an indicia of graphical data and instructs the client to locate the graphical data and to copy the data into the off-screen surface. In response to an error condition, the server transmits a duplicate of the off-screen surface to the client with instructions to update the client's on-screen surface using this duplicate surface.