Interactive video distribution systems – Operator interface – To facilitate tuning or selection of video signal
Reexamination Certificate
2006-10-03
2006-10-03
Kelley, Chris (Department: 2623)
Interactive video distribution systems
Operator interface
To facilitate tuning or selection of video signal
C725S054000
Reexamination Certificate
active
07117515
ABSTRACT:
Disclosed is a method of transmitting/receiving additional information. The method includes the steps of transmitting video, audio, trailer, and EPG(program guide) signals respectively having independent PIDs(packet identification numbers), receiving the transmitted signals and extracting the video, audio, EPG, and trailer signals from the received signals, displaying the extracted EPG, and displaying the trailer signal for a selected broadcast program of the EPG. Preferably, the trailer is displayed as a motion picture or still image. Accordingly, when the audience selects a specific program on an EPG screen, the present invention displays a summary or preview of the selected program. Therefore, the transmitting side such as a broadcasting station enables to inform the audiences of the corresponding program of the broadcasting station, and the audiences are helped to select programs through program previews or summaries.
REFERENCES:
patent: 6419137 (2002-07-01), Marshall et al.
patent: 6453471 (2002-09-01), Klosterman
patent: 6615039 (2003-09-01), Eldering
patent: 2001/0011372 (2001-08-01), Lee
patent: 2003/0133692 (2003-07-01), Hunter
Program and System Information Protocol for Terrestrial Broadcast and Cable, Dec. 23, 1997, ATSC, Doc. A/65.
Chung Young Tae
Kim Ik Ju
Son Hyeong Ho
Birch & Stewart Kolasch & Birch, LLP
Kelley Chris
LG Electronics Inc.
Sheleheda James
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