Fast channel switching method and apparatus for digital...

Details Fast channel switching method and apparatus for digital... Fast channel switching method and apparatus for digital...

2007-09-12

2011-10-11

Sheleheda, James R (Department: 2424)

Interactive video distribution systems

Operator interface

To facilitate tuning or selection of video signal

C725S120000, C725S151000

Reexamination Certificate

active

08037497

ABSTRACT:
A fast channel switching method and apparatus for a digital broadcast receiver that can reduce a channel switching delay caused by limitations in real time broadcasting systems is provided. A fast channel switching method of the present invention includes simultaneously receiving broadcast signals of a first service channel and a second service channel; presenting the broadcast signal of the first service channel through a player; and circular-buffering the broadcast signal of the second service channel. A digital broadcast receiver using a fast channel switching technique of the present invention can buffer an adjacent service channel while serving the current service channel such that the buffered broadcast signal is output when the adjacent channel is selected, thereby reducing a channel switching delay.

REFERENCES:
patent: 2006/0085828 (2006-04-01), Dureau et al.
patent: 2006/0109380 (2006-05-01), Salomons
patent: 2001-309258 (2001-11-01), None
patent: 2004-260812 (2004-09-01), None
patent: 2006-074241 (2006-03-01), None
Digital Video Broadcasting (DVB); DVB-H Implementation Guidelines, ETSI TR 102 377 V1.2.1, (Nov. 2005).
Digital Video Broadcasting (DVB); IP Datacast over DVB-H: Use Cases and Services, ETSI TR 102 473 V1.1.1, (Apr. 2006).
Digital Video Broadcasting (DVB); IP Datacast over DVB-H: Electronic Service Guide (ESG), ETSI TS 102 471 V1.1.1, (Apr. 2006).

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