发明名称 |
SYSTEM AND METHOD FOR TRANSMITTING FILES FROM A SENDER TO A RECEIVER IN A TELEVISION DISTRIBUTION NETWORK |
摘要 |
<p>A system and method for transmitting files from a sender to a receiver in a television distribution system, for example, a cable television distribution network, is provided. The files are transmitted without the need for transmitting a directory over an out of band communications link. In an exemplary embodiment, a filename corresponding to a file to be transmitted i s provided to a transform. The transform calculates a PID based on the filenam e. The calculated PID is incorporated into the MPEG2 data stream carrying the corresponding file contents. When an application program running in the receiver requests a file, the filename of the requested file is provided to a transform operating in the receiver. The transmitter and receiver transforms are identical. The transform provides a corresponding PID at its output. The PID is used to tune a PID filter on the receiver end such that the requested file is selected from the incoming MPEG bit stream for processing by the processor.</p> |
申请公布号 |
CA2560853(A1) |
申请公布日期 |
2005.10.13 |
申请号 |
CA20052560853 |
申请日期 |
2005.03.08 |
申请人 |
SEDNA PATENT SERVICES, LLC |
发明人 |
WURTZ, JOHN;DENISON, JOHN;PARNELL, JAMES;SCHRIER, MATTHEW |
分类号 |
H04L12/18;H04L12/28;H04L12/56;H04N7/16;H04N7/26;H04N7/30 |
主分类号 |
H04L12/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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