ES2078854A2 - Digital transmission system on twisted pair transmission lines. - Google Patents
Digital transmission system on twisted pair transmission lines.Info
- Publication number
- ES2078854A2 ES2078854A2 ES09301767A ES9301767A ES2078854A2 ES 2078854 A2 ES2078854 A2 ES 2078854A2 ES 09301767 A ES09301767 A ES 09301767A ES 9301767 A ES9301767 A ES 9301767A ES 2078854 A2 ES2078854 A2 ES 2078854A2
- Authority
- ES
- Spain
- Prior art keywords
- level
- previous
- current level
- current
- twisted pair
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Dc Digital Transmission (AREA)
Abstract
Digital transmission system on twisted pair transmission lines. Of the type used for transmitting binary data at high speed so that both in the bandwidth occupied by the transmission and in that not occupied, the radiated power limits laid down in various standards are not exceeded. Accordingly, it codifies the input data D at four levels V1, V2, V3, V4, the separation between each two adjacent levels being constant and the output signal progressing with the transitions in the input data D to a new level that depends upon the current and previous levels, which is V1 when the current level is V2 and the previous level V3 V2 when the current level is V1 or when the current level is V3 and the previous level V4 V3 when the current level is V4 or when the current level is V2 and the previous level V1 and V4 when the current level is V3 and the previous level V2.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES9301767A ES2078854B1 (en) | 1993-08-06 | 1993-08-06 | DIGITAL TRANSMISSION SYSTEM IN LINES OF TRANSMISSION OF BRAIDED PAIRS. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES9301767A ES2078854B1 (en) | 1993-08-06 | 1993-08-06 | DIGITAL TRANSMISSION SYSTEM IN LINES OF TRANSMISSION OF BRAIDED PAIRS. |
Publications (3)
Publication Number | Publication Date |
---|---|
ES2078854A2 true ES2078854A2 (en) | 1995-12-16 |
ES2078854R ES2078854R (en) | 1997-03-16 |
ES2078854B1 ES2078854B1 (en) | 1997-11-16 |
Family
ID=8282809
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES9301767A Expired - Lifetime ES2078854B1 (en) | 1993-08-06 | 1993-08-06 | DIGITAL TRANSMISSION SYSTEM IN LINES OF TRANSMISSION OF BRAIDED PAIRS. |
Country Status (1)
Country | Link |
---|---|
ES (1) | ES2078854B1 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4507793A (en) * | 1982-12-17 | 1985-03-26 | Gte Automatic Electric Incorporated | Digital signal transmission system |
EP0299639A2 (en) * | 1987-07-13 | 1989-01-18 | David Systems, Inc. | Digital data communications system |
EP0471945A2 (en) * | 1990-06-26 | 1992-02-26 | Digital Equipment Corporation | Method and apparatus for transmission of local area network signals over unshielded twisted pairs |
-
1993
- 1993-08-06 ES ES9301767A patent/ES2078854B1/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4507793A (en) * | 1982-12-17 | 1985-03-26 | Gte Automatic Electric Incorporated | Digital signal transmission system |
EP0299639A2 (en) * | 1987-07-13 | 1989-01-18 | David Systems, Inc. | Digital data communications system |
EP0471945A2 (en) * | 1990-06-26 | 1992-02-26 | Digital Equipment Corporation | Method and apparatus for transmission of local area network signals over unshielded twisted pairs |
Also Published As
Publication number | Publication date |
---|---|
ES2078854B1 (en) | 1997-11-16 |
ES2078854R (en) | 1997-03-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EC2A | Search report published |
Date of ref document: 19951216 Kind code of ref document: R Effective date: 19951216 |