US5046807A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fibre optic transmission system
Assignee: Ciena Luxembourg SARL
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Filing: 1990-02-22
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Granted: 1991-09-10
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Expires: 2010-02-22
Abstract
Abstract A passive distribution system for electromagnetic radiation using waveguides and couplers wherein radiation from a source is distributed to a number of destination points, including means at destination points for determining the power levels received at the destination points and means for transmitting from the destination points to the source location information representing said received power levels.
Inventors
- 👤 Brian M. Unitt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:39
CPC Classifications
G; G01; G01M; G01M11/00; G01M11/30; G01M11/33; H; H04; H04B; H04B10/00; H04B10/07; H04B10/075; H04B10/077; H04B10/079; H04B10/0795; H04B10/07955
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
58 words
A passive distribution system for electromagnetic radiation using waveguides and couplers wherein radiation from a source is distributed to a number of destination points, including means at destination points for determining radiation power levels received at the destination points and means for transmitting from the destination points to the source location information representing said received radiation power levels.
Claim 2
Dependent Claim
58 words
A passive distribution system for electromagnetic radiation using waveguides and couplers wherein radiation from a source is distributed to a number of destination points, including means at destination points for determining radiation power levels received at the destination points and means for transmitting from the destination points to the source location information representing said received radiation power levels.
Claim 3
Dependent Claim
34 words
A system as claimed in claim 1 wherein the source location includes means responsive to said information to regulate the source radiation power in the event of a perceived fault in the distribution system.
Claim 4
Dependent Claim
22 words
A system according to claim 2 wherein the source is an electro-optic device and the distribution system comprises optical fibres and couplers.
Claim 5
Dependent Claim
53 words
A system according to claim 3 including at the source location means for collating information received from a number of destination points, means for evaluating the collated information and for initiating shutdown of the source in the event of a perceived fault in the distribution system when said fault constitutes a defined hazard.
Claim 6
Dependent Claim
27 words
A system according to claim 3 wherein the transmission of information from the destination points to the source location is effected by duplex transmission in the system.
Claim 7
Dependent Claim
27 words
A system according to claim 4 wherein the transmission of information from the destination points to the source location is effected by duplex transmission in the system.
Claim 8
Dependent Claim
26 words
A system according to claim 3 wherein the transmission of information from the destination points to the source location is effected via an independent transmission system.
Claim 9
Dependent Claim
26 words
A system according to claim 4 wherein the transmission of information from the destination points to the source location is effected via an independent transmission system.
Claim 10
Dependent Claim
25 words
A system according to claim 5 wherein the transmission of information from the destination points to the source location is effected in time division multiplex.
Claim 11
Independent Claim
69 words
A method of operating a passive distribution system for electromagnetic radiation from a source location to a number of destination points using waveguides and couplers, including the steps of transmitting from the destination points to the source location information concerning the operating status of the destination points, collating said information at the source location and regulating the source power in the event of a perceived fault in the system.
Claim 12
Independent Claim
69 words
A method of operating a passive distribution system for electromagnetic radiation from a source location to a number of destination points using waveguides and couplers, including the steps of transmitting from the destination points to the source location information concerning the operating status of the destination points, collating said information at the source location and regulating the source power in the event of a perceived fault in the system.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-09-09 | 1995-03-11 | 1995-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-09-09 | 1999-03-11 | 1999-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-09-09 | 2003-03-11 | 2003-09-10 | $7700.00 | Window Closed / Lapsed |