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EP0202602A2
Expired / Lapsed
EP
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Optical fiber data link system
Assignee: Kawamura Electric Inc
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Filing: 1986-05-14
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Granted: —
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Expires: 2006-05-14
Abstract
Abstract An optical fiber data link system comprising a controller and one or more stations, all of which are connected to one another by a series of optical fibers providing a single loop as a whole. At least one data input module and/or one data output module is connected to each station. The controller includes a light receiving element, a serial-parallel converter, an circuit for generating an address/data indicating signal, an address setting circuit, a parallel-serial converter and a luminous element. Each station includes a light receiving element, a serial-parallel converter, an address/data distinguish circuit, a parallel-serial converter and a luminous element. Each data input module includes an address decoder, a comparison circuit, a switch circuit, a data latch circuit and one or more input terminals. Each data output module includes an address decoder, a comparison circuit, a switch circuit, a data latch circuit and one or more output terminals.
Inventors
- 👤 Makato Yokoyama
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 22:35
CPC Classifications
H; H04; H04B; H04B10/00; H04B10/25; H04L; H04L12/00; H04L12/28; H04L12/42; G; G08; G08C; G08C23/00; G08C23/06; H04B10/27; H04B10/275; H04B10/2755; G05; G05B; G05B2219/00; G05B2219/10; G05B2219/11; G05B2219/1113; G05B2219/15; G05B2219/15017
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
161 words
An optical fiber data link system comprising a controller and at least one station connected to each other by a series of optical fibers which, as a whole, substantially makes a single loop while linking them together, said controller at least including (a) a light receiving element, (b) a serial-parallel converter, (c) a circuit for generating a signal to allow said station to determine which of two signals, i.e., address signal or data signal, has been received thereby, (d) an address setting circuit, (e) a parallel-serial converter and (f) a luminous element, said station at least including (i) a light receiving element, (ii) a serial-parallel converter, - (iii) a circuit for determining which of two signals, i.e., address signal or data signal has been received by the station, (vi) a parallel-serial converter and (v) a luminous element, at least one data module being connected to said station, and said data module having an address of its own assigned thereto in advance.
Claim 2
Dependent Claim
161 words
An optical fiber data link system comprising a controller and at least one station connected to each other by a series of optical fibers which, as a whole, substantially makes a single loop while linking them together, said controller at least including (a) a light receiving element, (b) a serial-parallel converter, (c) a circuit for generating a signal to allow said station to determine which of two signals, i.e., address signal or data signal, has been received thereby, (d) an address setting circuit, (e) a parallel-serial converter and (f) a luminous element, said station at least including (i) a light receiving element, (ii) a serial-parallel converter, - (iii) a circuit for determining which of two signals, i.e., address signal or data signal has been received by the station, (vi) a parallel-serial converter and (v) a luminous element, at least one data module being connected to said station, and said data module having an address of its own assigned thereto in advance.
Claim 3
Dependent Claim
20 words
An optical fiber data link system in accordance with claim 1 wherein said data module is a data input module.
Claim 4
Dependent Claim
20 words
An optical fiber data link system in accordance with claim 1 wherein said data module is a data output module.
Claim 5
Dependent Claim
37 words
An optical fiber data link system in accordance with claim 1 wherein said data module numbers more than one unit, and these units are at least one data input module and at least one data output module.
Claim 6
Dependent Claim
38 words
An optical fiber data link system in accordance with claim 2 or 4 wherein said data input module includes an address decoder, a comparison circuit, a switch circuit, a data latch circuit and at least one input terminal.
Claim 7
Dependent Claim
38 words
An optical fiber data link system in accordance with claim 3 or 4 wherein said data output module includes an address decoder, a comparison circuit, a switch circuit, a data latch circuit and at least one output terminal.
Claim 8
Dependent Claim
62 words
An optical fiber data link system in accordance with claim 4 wherein said data input module is adapted to input data in the system if its address has been set by said controller, while said data output module is adapted to receive said data from said data input module if its address is the same as that of said data input module.
Claim 9
Dependent Claim
54 words
An optical fiber data link system in accordance with claim 1, 2 or 3 wherein said data module is provided with n-bit dip switches for assigning an address thereto and also provided with m-bit terminals each consisting of a pair of terminal means, both said n and said m being a positive whole number.
Claim 10
Dependent Claim
60 words
An optical fiber data link system in accordance with claim 4 or 7 wherein said data input module and said data output module each are provided with n-bit dip switches for assigning an address thereto and also provided with m-bit terminals each consisting of a pair of terminal means, both said n and said m being a positive whole number.
Claim 11
Dependent Claim
61 words
An optical fiber data link system in accordance with claim 9 wherein said data input module is adapted to input m-bit data when said terminal means of m-bit terminals thereof have made contact with each other, while said data output module is adapted to output m-bit data when said terminal means of m-bit terminals thereof have made contact with each other.
Claim 12
Dependent Claim
48 words
An optical fiber data link system in accordance with claim 2, 4, 5, 7, 9 or 10 wherein said data input module comprises an analog data input module with a means for converting an analog data into a m-bit digital signal, said m being a positive whole number.
Claim 13
Dependent Claim
65 words
An optical fiber data link system in accordance with claim 3, 4, 6, 7, 9 or 10 wherein said data output module comprises an analog data output module with a means for converting m-bit data into analog data and with a circuit for supplying voltage or current with a magnitude proportional to the value of said converted data, said m being a positive whole number.
References Cited (Backward Citations)
No citation records indexed.
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