Messaging protocol for interactive delivery system

Details Messaging protocol for interactive delivery system Messaging protocol for interactive delivery system

2006-12-05

2006-12-05

Vu, Ngoc (Department: 2623)

Interactive video distribution systems

Operator interface

To facilitate tuning or selection of video signal

C725S039000, C725S043000, C725S098000, C725S118000

Reexamination Certificate

active

07146628

ABSTRACT:
Efficient messaging techniques that facilitate interactive program guide (IPG) delivery and allow a terminal to specifically designate requested items of information from a server. The IPG can be provided via a number of IPG pages, with each page including a number of defined regions. In one method, selection for a particular region of a particular page is received at a terminal and a determination is made whether the selected region is currently received. If the answer is no, a request for the selected region is generated and sent to a server. The request can conform to a particular message format that includes a number of fields, e.g., a region ID field that identifies the selected region, a subtype field that identifies a particular type, a time slot field that identifies a specific time slot, and a page offset field that identifies a specific page from among many.

REFERENCES:
patent: 5481542 (1996-01-01), Logston et al.
patent: 5844620 (1998-12-01), Coleman et al.
patent: 6160545 (2000-12-01), Eyer et al.
patent: 6563515 (2003-05-01), Reynolds et al.

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