IT8919918A0 - METHOD AND DEVICE FOR COMPENSATING ACCIDENTAL VARIATIONS IN THE OPTICAL MEASUREMENT SIGNALS INTERVENTIONING IN THE OPTICAL LINES FOR THEIR REMOTE TRANSMISSION. - Google Patents
METHOD AND DEVICE FOR COMPENSATING ACCIDENTAL VARIATIONS IN THE OPTICAL MEASUREMENT SIGNALS INTERVENTIONING IN THE OPTICAL LINES FOR THEIR REMOTE TRANSMISSION.Info
- Publication number
- IT8919918A0 IT8919918A0 IT8919918A IT1991889A IT8919918A0 IT 8919918 A0 IT8919918 A0 IT 8919918A0 IT 8919918 A IT8919918 A IT 8919918A IT 1991889 A IT1991889 A IT 1991889A IT 8919918 A0 IT8919918 A0 IT 8919918A0
- Authority
- IT
- Italy
- Prior art keywords
- optical
- interventioning
- compensating
- measurement signals
- remote transmission
- Prior art date
Links
- 230000003287 optical effect Effects 0.000 title 2
- 230000005540 biological transmission Effects 0.000 title 1
- 238000005259 measurement Methods 0.000 title 1
- 238000000034 method Methods 0.000 title 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/25—Arrangements specific to fibre transmission
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
- G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
- G01D5/344—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using polarisation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/25—Arrangements specific to fibre transmission
- H04B10/2507—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT8919918A IT1228754B (en) | 1989-03-28 | 1989-03-28 | METHOD AND DEVICE TO COMPENSATE FOR THE ACCIDENTAL VARIATIONS OF THE OPTICAL MEASUREMENT SIGNALS INTERVENING IN THE OPTICAL LINES OF REMOTE TRANSMISSION OF THEMSELVES. |
FR9003945A FR2645376B1 (en) | 1989-03-28 | 1990-03-28 | METHOD AND DEVICE FOR COMPENSATING ACCIDENTAL VARIATIONS IN THE OPTICAL MEASUREMENT SIGNALS OCCURRING ON THE REMOTE TRANSMISSION OPTICAL LINES OF THESE SIGNALS |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT8919918A IT1228754B (en) | 1989-03-28 | 1989-03-28 | METHOD AND DEVICE TO COMPENSATE FOR THE ACCIDENTAL VARIATIONS OF THE OPTICAL MEASUREMENT SIGNALS INTERVENING IN THE OPTICAL LINES OF REMOTE TRANSMISSION OF THEMSELVES. |
Publications (2)
Publication Number | Publication Date |
---|---|
IT8919918A0 true IT8919918A0 (en) | 1989-03-28 |
IT1228754B IT1228754B (en) | 1991-07-03 |
Family
ID=11162332
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT8919918A IT1228754B (en) | 1989-03-28 | 1989-03-28 | METHOD AND DEVICE TO COMPENSATE FOR THE ACCIDENTAL VARIATIONS OF THE OPTICAL MEASUREMENT SIGNALS INTERVENING IN THE OPTICAL LINES OF REMOTE TRANSMISSION OF THEMSELVES. |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR2645376B1 (en) |
IT (1) | IT1228754B (en) |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1269545B (en) * | 1966-06-24 | 1968-05-30 | Telefunken Patent | Process for the transmission of messages by means of laser beams |
JPS59229938A (en) * | 1983-06-10 | 1984-12-24 | Nec Corp | Phase synchronization system for two-route optical communication |
-
1989
- 1989-03-28 IT IT8919918A patent/IT1228754B/en active
-
1990
- 1990-03-28 FR FR9003945A patent/FR2645376B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
FR2645376A1 (en) | 1990-10-05 |
IT1228754B (en) | 1991-07-03 |
FR2645376B1 (en) | 1993-04-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19980327 |