Citrix Systems, Inc.

Ruiguo Yang

Christopher M Fleck

Henry Collins

Adam Marano

Gus Pinto

Paul Coleman

In general overview, the present disclosure is directed to a system and method for selectively displaying a frame of an application user interface on a mobile computing device. A user interface analyzer on a mobile computing device analyzes a user interface for an application executing on a remote server. The user interface analyzer identifies frames in the user interface, the positions of the frames, relationships between frames, and horizontal and vertical panning offsets to move between adjacent frames. The mobile computing device receives a user input requesting the display of an adjacent frame. Based on the information the user interface analyzer obtained, the mobile computing device displays an adjacent frame of the user interface.

Interpreting a gesture-based instruction to selectively display a frame of an application user interface on a mobile computing device

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.

Remote control of a client's off-screen surface

The performance of distributed systems can be improved by reducing the amount of graphical line data transmitted between a server and a client. The server separates the graphical line data into a plurality of strips. The server then determines a quantized angle and a strip length for each of the strips. The beginning coordinate of the graphical line data is packaged together with the quantized angle or indicia of the quantized angle and the strip length data into a protocol packet and compressed prior to transmission to the client. In one embodiment the strip data transmitted to the client includes a second indicia that a particular strip has been previously transmitted to the client and the client is instructed to form the strip using locally stored data.

Growing community of inventors

Parkland, FL, United States of America

Ruiguo Yang