Title:
A METHOD FOR ADAPTIVE DATA/CONTENT INSERTION IN MPEG2 TRANSPORT STREAM
Document Type and Number:
WIPO Patent Application WO2002080547
Kind Code:
A3
Abstract:
An adaptive data insertion mechanism conducts future available bandwidth prediction/estimation by analyzing recent bandwidth in the transport stream which is consumed by general programs and inserts data by replacement of selected packets within the transport stream. Estimates of future available bandwidth are produced from periodic sampling of bandwidth utilization together with information regarding upcoming programming changes. The available bandwidth estimate is employed to prioritize and schedule data insertion within the transport stream. Scheduled data is inserted by replacement of selected packets within the received transport stream before forwarding.
Inventors:
DEVARA KAVITHA V
Application Number:
PCT/IB2002/000839
Publication Date:
January 09, 2003
Filing Date:
March 19, 2002
Export Citation:
Assignee:
KONINKL PHILIPS ELECTRONICS NV (NL)
International Classes:
H04N7/08; H04L12/56; H04N7/081; H04N21/222; H04N21/235; H04N21/236; H04N21/2362; H04N21/24; H04N21/262; H04N21/434; H04N21/435; (IPC1-7): H04N7/24
Domestic Patent References:
| WO1998053614A1 | 1998-11-26 | |||
| WO2000016560A1 | 2000-03-23 | |||
| WO2001043448A1 | 2001-06-14 |
Foreign References:
| EP0926894A1 | 1999-06-30 | |||
| US6078958A | 2000-06-20 | |||
| US5754783A | 1998-05-19 | |||
| US5966120A | 1999-10-12 |
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