Method and system for transmitting data for a shared application
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Accused Products
Abstract
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.
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Citations
14 Claims
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1-12. -12. (canceled).
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13. A method for transmitting data from a first computer system to a second computer system, the data for displaying on a display of the second computer system, the method comprising:
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receiving without solicitation, an identification of each font supported by the second computer system;
receiving a request to display text data in a specified font on the second computer system;
checking the received identifications to determine whether the second computer program supports the specified font;
when it is determined that the second computer program supports the specified font, sending the text data along with an identification of the specified font to the second computer program;
when it is determined that the second computer program does not support the specified font, generating a bitmap representation of the text data in the specified font; and
sending the generated bitmap representation of the text data to the second computer system thereby enabling the second computer system to display one or more of the text data in the specified font and the bitmap representation.
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14. A computer-readable storage device containing instructions for controlling a computer system to transmit graphics display data, by:
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receiving, without solicitation, an identification of each font supported by a second computer system;
receiving a request to display text data in a specified font on the second computer system;
checking the received identifications to determine whether the second computer system supports the specified font;
when it is determined that the second computer program supports the specified font, sending the text data along with an identification of the specified font to the second computer system; and
when it is determined that the second computer program does not support the specified font, generating a bitmap representation of the text data in the specified font, and sending the generated bitmap representation of the text data to the second computer system.
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Specification