Title:
CABLE TELEVISION SYSTEM WITH DIGITAL REVERSE PATH ARCHITECTURE
Document Type and Number:
WIPO Patent Application WO2004015962
Kind Code:
A3
Abstract:
A communications system includes forward and reverse paths. Reverse path circuitry within an optical node of the system receives reverse analog electrical signals from subscriber equipment and generates therefrom a multiplexed reverse digital optical signal. A coupling node combines digital optical signals and/or RF signals from an optical node or from coaxial cable, respectively. The combined digital optical signal is transmitted over a fiber optic cable to a cable television hub, the reverse path portion of which includes no active circuitry. The hub multiplexes the digital optical signal with other digital optical signals from other nodes to generate one or more forwarded digital optical signals at a hub output, wherein generation of the one or more forwarded digital optical signals requires only passive devices in the reverse path of the hub.
Inventors:
BROWN DOUGLAS E
FARHAN FARIBORZ M
PIDGEON REZIN E JR
FARHAN FARIBORZ M
PIDGEON REZIN E JR
Application Number:
PCT/US2003/025326
Publication Date:
October 07, 2004
Filing Date:
August 12, 2003
Export Citation:
Assignee:
SCIENTIFIC ATLANTA (US)
International Classes:
H04J14/02; H04N7/173; H04L7/033; (IPC1-7): G02F1/00
Foreign References:
| US6484317B1 | 2002-11-19 | |||
| US20020154367A1 | 2002-10-24 | |||
| US20020129379A1 | 2002-09-12 | |||
| US5949778A | 1999-09-07 | |||
| US20030126614A1 | 2003-07-03 | |||
| US5623565A | 1997-04-22 | |||
| US20030028894A1 | 2003-02-06 | |||
| US5835498A | 1998-11-10 |
Download PDF:
Previous Patent: ESTIMATING BULK DELAY IN A TELEPHONE SYSTEM
Next Patent: A FLIP COVER APPARATUS OF WRISTWATCH TYPE MOBILE PHONE
Next Patent: A FLIP COVER APPARATUS OF WRISTWATCH TYPE MOBILE PHONE