Optical communications – Diagnostic testing – Fault detection
Reexamination Certificate
2008-01-25
2011-11-01
Li, Shi K (Department: 2613)
Optical communications
Diagnostic testing
Fault detection
Reexamination Certificate
active
08050556
ABSTRACT:
An apparatus comprising an optical transmitter coupled to an optical fiber, and an optical receiver coupled to the optical fiber, wherein the transmitter is configured to transmit a test signal data pattern and user data into the optical fiber, and wherein the receiver is configured to receive a reflection of the test signal data pattern. Also disclosed is a network component comprising a processor configured to implement a method comprising promoting the transmission of an optical test signal data pattern into an optical fiber, wherein the test signal data pattern creates a radio frequency (RF) tone, and detecting a reflection of the RF tone in the optical fiber.
REFERENCES:
patent: 7280188 (2007-10-01), Schmuck et al.
patent: 7428382 (2008-09-01), Soto et al.
patent: 7787771 (2010-08-01), Kim et al.
patent: 2004/0070750 (2004-04-01), Iannelli et al.
patent: 2004/0208523 (2004-10-01), Carrick et al.
patent: 2005/0123293 (2005-06-01), Maki et al.
patent: 2006/0140639 (2006-06-01), Effenberger
patent: 1333454 (2002-01-01), None
patent: 1681227 (2005-10-01), None
patent: 1743825 (2006-03-01), None
M. Yoshida et al., “Long Distance Measurement with High Spatial Resolution by Optical Frequency Domain Reflectometry Using a Frequency Shifted Feedback Fiber Laser”, CLEO, 2000.
Foreign communication from a related counterpart application—International Search Report and Written Opinion, PCT/CN2008/070329, May 29, 2008, 6 pages.
Pfeiffer, Thomas, “Supervision of the Fiber Layer in PON”, OAN Study Group G.SUP; FSAN Meeting, Lannion, May 10, 2007, 18 pages.
International Telecommunication Union, “Series G: Transmission Systems and Media, Digital Systems and Networks, Digital Sections and Line System—Optical Line Systems for Local and Access Networks”, Telecommunication Standardization Sector of ITU,G.984.3, Feb. 2004, 116 pages.
International Telecommunication Union, “Series G: Transmission Systems and Media, Digital Systems and Networks, Digital Sections and Line System—Optical Line Systems for Local and Access Networks”, Telecommunication Standardization Sector of ITU,G.984.3, Amendment 1, Jul. 2005, 46 pages.
International Telecommunication Union, “Series G: Transmission Systems and Media, Digital Systems and Networks, Digital Sections and Line System—Optical Line Systems for Local and Access Networks”, Telecommunication Standardization Sector of ITU,G.984.3, Amendment 2, Mar. 2006, 14 pages.
International Telecommunication Union, “Series G: Transmission Systems and Media, Digital Systems and Networks, Digital Sections and Line System—Optical Line Systems for Local and Access Networks”, Telecommunication Standardization Sector of ITU,G.984.3, Amendment 3, Dec. 2006, 12 pages.
Colella, Barry et al., “Raman Crosstalk Control in Passive Optical Networks”, Optical Society of America, 2006, 3 pages.
Chen, B., et al., “A Novel Technique for Low-Cost Embedded Non-intrusive Fiber Monitoring of P2MP Optical Access Networks”, Optical Society of America, 2007, 3 pages.
Schmuck, H., et al., “Embedded OTDR techniques for Cost-Efficient Fibre Monitoring in Optical Access Networks”, Alcatel Research and Innovation, 2006, 2 pages.
Conley & Rose, P.C.
Futurewei Technologies, Inc.
Li Shi K
Rodolph Grant
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