Importance

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Abstract

An improved data transfer system is provided to transfer game data over a telephone line with low delay even while a voice conversation is being transferred over the same telephone line. Voice data and game data are framed, in a modified HDLC framing scheme, with game data inserted, if necessary, into a frame which contains voice, so that the time needed to complete the frame is not added to the delay of the game data. The inserted game data need not be of a fixed length, as it is delimited within the voice data by an escape sequence not found in the voice data. The available bandwidth is efficiently used since frames of voice data are not necessarily sent during periods of silence and frames of game data or other data can be sent using the entire telephone line bandwidth. The data is framed at a point beyond the output of pre-existing games and data transfer programs, to allow for transparent insertion of voice into the frame stream.

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First Claim