Title:
VIDEO DISTRIBUTION SYSTEM WITH INCREASED CENTRALIZED PROCESSING
Document Type and Number:
WIPO Patent Application WO2004028136
Kind Code:
A3
Abstract:
A cable distribution system with distributed architecture in a multi-dwelling unit or building(s) ( 12). Each dwelling (12) has at least one Room Interface Unit (RIU) (26), one for each television. There is a local service module (24) associated with a group of dwellings/RIUs (e.g., one per floor). There is also a local headend (20) in the vicinity or in the building (12) or set of buildings. The local headend (20) has a block of integrated receiver/decoders (40, 42, 44) which can be controlled to tune in a selected video channel. The selected video channels and a group of standard channels are multiplexed (22) and sent to the local service modules (24) where a group of programmable converters (one for each RIU (26)) place the channel selected by its corresponding RIU (26) at a predetermined frequency. All of the RIUs (26) associated with a particular local service module (24) can receive a single multiplexed signal and each RIU (26) uses bandpass filtering to select its selected channel. Forward and return DOCSIS channels are also provided.
Inventors:
BASAWAPATNA GANESH
BASAWAPATNA VARALAKSHMI
BASAWAPATNA VARALAKSHMI
Application Number:
PCT/US2003/029851
Publication Date:
July 01, 2004
Filing Date:
September 18, 2003
Export Citation:
Assignee:
SYMPHONY MEDIA SYSTEMS LLC (US)
International Classes:
H04N7/10; H04N7/24; (IPC1-7): H04N7/18; H04N7/08; H04N7/16; H04N7/173
Foreign References:
| US20020031224A1 | 2002-03-14 | |||
| US6622307B1 | 2003-09-16 | |||
| US5682195A | 1997-10-28 |
Other References:
See also references of EP 1540959A4
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