Microsoft Technology Licensing, LLC

Other

Picturetel Corporation

Mark E Berry

John P Batty

Christopher J Mairs

Kenneth P Hughes

Anthony M Downes

Alex J Pollitt

Roderick F MacFarquhar

A method and system for compressing bitmap data in a system for sharing an application running on a host computer with a remote computer, wherein the shared application's screen output is simultaneously displayed on both computers. Simultaneous display of screen output is achieved by efficiently transmitting display data between the host computer and the remote computer. When a font used by the host computer for displaying text is not available on the remote computer, the host computer sends a bitmap representation of the text for display, rather than the text itself. Bitmap representations are cached by the remote computer, so that the same bitmap representation need not be repeatedly transmitted from the host computer to the remote computer. Bitmap representations are compressed by the host computer prior to transmission, transmitted, then decompressed by the computer.

Method and system for transmitting and determining the effects of display orders from shared application between a host and shadow computer

Method and system for transmitting data for a shared application

A method and system for compressing bitmap data in a system for sharing an application running on a host computer with a remote computer, wherein the shared application's screen output is simultaneously displayed on both computers. Simultaneous display of screen output is achieved by efficiently transmitting display data between the host computer and the remote computer. When a font used by the host computer for displaying text is not available on the remote computer, the host computer sends a bitmap representation of the text for display, rather than the text itself. Bitmap representations are cached by the remote computer, so that the same bitmap representation need not be repeatedly transmitted from the host computer to the remote computer. Bitmap representations are compressed by the host computer prior to transmission, transmitted, then decompressed by the remote computer.

Compressing/decompressing bitmap by performing exclusive- or operation setting differential encoding of first and previous row therewith outputting run-length encoding of row

Method for transmitting text data for shared application between first and second computer asynchronously upon initiation of a session without solicitation from first computer

A method and system sharing an application running on a host computer with a remote computer by simultaneously displaying the application's screen output on both computers. Simultaneous display of screen output is achieved by efficiently transmitting display data from the host computer to the remote computer. Data that will not result in a visible display on the remote computer is detected by the host computer and not transmitted, eliminating unnecessary transmission and processing of data by the remote computer. Pixel depth translation is done on the computer system capable of most accurately translating pixel depth. When the font used by the host computer for displaying text is not available on the remote computer, the host computer sends a bitmap representation of the text for display, rather than the text itself Bitmap representations are cached by the remote computer, so that the same bitmap representation need not be repeatedly transmitted from the host computer to the remote computer. Bitmap representations are compressed by the host computer prior to transmission.

System for determining more accurate translation between first and

Growing community of inventors

Middlesex, United Kingdom

Mark E Berry