公开(公告)号：US07080397B2

公开(公告)日：2006-07-18

申请号：US09898172

申请日：2001-07-03

申请人： Keith R. Cochran ,  John Okimoto

发明人： Keith R. Cochran ,  John Okimoto

IPC分类号： H04N7/173

CPC分类号： H04N21/23473 ,  H04N7/165 ,  H04N7/1675 ,  H04N7/17336 ,  H04N21/2347 ,  H04N21/2541 ,  H04N21/2543 ,  H04N21/26606 ,  H04N21/26609 ,  H04N21/4143 ,  H04N21/4405 ,  H04N21/4627 ,  H04N21/47202 ,  H04N21/47211 ,  H04N21/63345 ,  H04N21/63775 ,  H04N21/6405 ,  H04N21/6587 ,  H04N21/8355 ,  H04N21/8549

摘要： A transaction protocol for communicating between an encryption renewal system communicably coupled to one or more video on demand systems via a communication network. The encryption renewal system permits pre-encrypted content to be accessed by clients of the video on demand systems. The protocol comprises, receiving, by the encryption renewal system, a request transaction document having a first format from the video on demand system; parsing the request transaction document to retrieve data from the request transaction document; generating a request object code in a second format for processing by encryption renewal system, the request object code based on the data in the request transaction document; responsive to processing of the request object code, generating a response object code having the second format; converting the response object code to a response transaction document having the first format; and forwarding the response transaction document to the video on demand system.