| 摘要 |
Methods and systems are provided for helping maintain isochronous communications with peripheral devices ( 308 ), such as USB devices, over a network ( 302 ). Some methods for facilitating isochronous IN communication include noting ( 1906 ) passage of a predetermined interval without communication ( 310 ) from the peripheral device driver ( 402 ), and then creating ( 1908 ) a dummy communication ( 312 ) and sending ( 1910 ) it over the network toward the peripheral device to maintain isochronous communication toward the peripheral device. Some methods for facilitating isochronous OUT communication include noting ( 2006 ) passage of a predetermined interval without receipt, over the network, of a responsive communication ( 310 ) from the peripheral device in response to a first communication, and then creating ( 2008 ) a dummy communication ( 312 ) and sending ( 2010 ) it toward the peripheral device driver to maintain isochronous communication transmissions toward the peripheral device driver. The interval between isochronous communication transmissions may be changed ( 1930 ) to optimize buffer ( 314 ) usage, and delays may be controlled ( 1922, 2016 ).
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