US5050955A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fibreoptic switch
Assignee: Telefonaktiebolaget LM Ericsson AB
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Filing: 1990-11-29
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Granted: 1991-09-24
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Expires: 2010-11-29
Abstract
Abstract The present invention relates to a fibreoptic switch for enabling one or more of n number of incoming optofibers to be connected selectively with a respective one of m number of outgoing optofibers. According to the invention, the switch includes a matrix block (1) having light transmitting devices (2) which extend in n number of rows and m number of columns between an input side and an output side. On the input side, the incoming optofibers (3) can be displaced linearly along a respective row of the rows of light transmitting devices (2), and the outgoing optofibers (6) on the output side can be displaced linearly along a respective column of the columns of light transmitting devices (2). A selected incoming optofibre (3) can therewith be displaced along its corresponding row to a desired column of light transmitting devices (2), and an outgoing optofiber (6) in a corresponding column can be displaced to a corresponding row of light transmitting devices (2), so as to mutually connect the selected optofibers.
Inventors
- 👤 Sven R. Sjolinder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:41
CPC Classifications
G; G02; G02B; G02B26/00; G02B26/08; G02B6/00; G02B6/24; G02B6/26; G02B6/35; G02B6/3502; G02B6/3508; G02B6/354; G02B6/3554; G02B6/3556; G02B6/3564; G02B6/358
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
157 words
A fiberoptic switch for enabling selective connection of one or more of an n number of incoming optofibers with a respective one of an m number of outgoing optofibers, characterized in that the switch includes a matrix block having light transmission devices which extend in n number of rows and m number of columns between an input side and an output side; in that the incoming optofibers on the input side are each displaceable linearly along a respective row of the rows of light transmission devices; in that the outgoing optofibers on the output side are displaceable linearly along a respective column of the columns of light transmitting devices; and in that a selected incoming optofiber can be displaced along its corresponding row to a desired column of light transmitting devices and an outgoing optofiber in a corresponding column can be displaced to a corresponding row of light transmitting devices for mutual connection of the selected optofibers.
Claim 2
Dependent Claim
157 words
A fiberoptic switch for enabling selective connection of one or more of an n number of incoming optofibers with a respective one of an m number of outgoing optofibers, characterized in that the switch includes a matrix block having light transmission devices which extend in n number of rows and m number of columns between an input side and an output side; in that the incoming optofibers on the input side are each displaceable linearly along a respective row of the rows of light transmission devices; in that the outgoing optofibers on the output side are displaceable linearly along a respective column of the columns of light transmitting devices; and in that a selected incoming optofiber can be displaced along its corresponding row to a desired column of light transmitting devices and an outgoing optofiber in a corresponding column can be displaced to a corresponding row of light transmitting devices for mutual connection of the selected optofibers.
Claim 3
Dependent Claim
20 words
A switch according to claim 1, characterized in that the light transmission devices are wavelengths, optical fibers or the like.
Claim 4
Dependent Claim
49 words
A switch according to claim 2, characterized in that both the incoming and outgoing optofibers are arranged on slides or corresponding devices which can be displaced in corresponding guide grooves in the matrix block; and in that the light transmitting devices terminate in the bottom of the guide grooves.
Claim 5
Dependent Claim
46 words
A switch according to claim 3, characterized in that each slide includes a spring-biased ball which can engage in a recess provided in each guide groove and corresponding to each row and column respectively of light transmitting devices, for placing respective optifibers in their correct positions.
Claim 6
Dependent Claim
33 words
A switch according to claim 3, characterized in that the slides have a trapezoidal configuration with the base facing towards the matrix block and in that the guide grooves have a corresponding configuration.
Claim 7
Dependent Claim
35 words
A switch according to claim 3, characterized in that in cross-section the slides have a trapezoidal configuration with the base facing towards the matrix block and in that the guide grooves have a corresponding configuration.
Claim 8
Dependent Claim
19 words
A switch according to claim 6, characterized in that the optofibers exit in the base of the trapezoidal slides.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-09-23 | 1995-03-25 | 1995-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-09-23 | 1999-03-25 | 1999-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-09-23 | 2003-03-25 | 2003-09-24 | $7700.00 | Window Closed / Lapsed |