Channel switching system and method of IPTV service in...

Details Channel switching system and method of IPTV service in... Channel switching system and method of IPTV service in...

2007-03-27

2009-12-29

Doan, Jennifer (Department: 2874)

Optical waveguides

With optical coupler

Switch

C385S015000, C385S024000, C398S043000, C398S066000, C398S067000

Reexamination Certificate

active

07639905

ABSTRACT:
Channel switching system and method of an IPTV service in a passive optical network (PON) are disclosed. To reduce a channel switching time of an IPTV system in the passive optical network, the system and the method use a channel switching control module and a channel list module in the passive optical network. In a case where a passive optical network system receives an IPTV channel switching request transmitted from a terminal user, the channel switching control module checks a recording of a channel list module and a recording of an authentication list module, and then updates a filter recording of an optical network unit to thereby directly transmit an image flow of a new channel in the passive optical network. When such system and method are applied to the passive optical network, high-speed switching of the IPTV service channel by the terminal user can be realized.

REFERENCES:
patent: 7143116 (2006-11-01), Okitsu et al.
patent: 7552214 (2009-06-01), Venkatasubramanian
patent: 2005/0265386 (2005-12-01), Smith et al.

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