Invention Grant
- Patent Title: System and method for multimedia content simulcast
- Patent Title (中): 多媒体内容联播的系统和方法
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Application No.: US09871415Application Date: 2001-05-30
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Publication No.: US07386129B2Publication Date: 2008-06-10
- Inventor: Stephen G. Perlman
- Applicant: Stephen G. Perlman
- Applicant Address: US WA Kirkland
- Assignee: Digeo, Inc.
- Current Assignee: Digeo, Inc.
- Current Assignee Address: US WA Kirkland
- Agency: Stoel Rives LLP
- Agent Kory D. Christensen
- Main IPC: H04N7/167
- IPC: H04N7/167 ; H04N7/16 ; H04L9/00

Abstract:
A computer-implemented method is described for processing multimedia channels comprising: encrypting a first group of multimedia channels using a first type of encryption to produce a first group of encrypted multimedia channels; encrypting the first group of multimedia channels using a second type of encryption to produce a second group of encrypted multimedia channels; concurrently transmitting the first group of encrypted multimedia channels with the second group of multimedia channels to a plurality of multimedia subscribers having multimedia receivers capable of decrypting the first group of encrypted multimedia channels and/or the second group of multimedia channels.Also described is a method comprising: receiving a plurality of channels from content providers at a cable headend; simulcasting premium cable channels to a plurality of subscribers in both a first encrypted format and a second encrypted format; and tran smitting non-premium channels to the plurality of subscribers in a non-encrypted format.
Public/Granted literature
- US20020184506A1 System and method for multimedia content simulcast Public/Granted day:2002-12-05
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