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
Application number
ES09301767A
Other languages
Spanish (es)
Other versions
ES2078854B1 (en
ES2078854R (en
Inventor
Gonzalez Jose Merino
Gomez Rafael Sanz
Gonzalez Jose Luis Merino
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nokia Spain SA
Original Assignee
Alcatel Standard Electrics SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Alcatel Standard Electrics SA filed Critical Alcatel Standard Electrics SA
Priority to ES9301767A priority Critical patent/ES2078854B1/en
Publication of ES2078854A2 publication Critical patent/ES2078854A2/en
Publication of ES2078854R publication Critical patent/ES2078854R/es
Application granted granted Critical
Publication of ES2078854B1 publication Critical patent/ES2078854B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • 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.
ES9301767A 1993-08-06 1993-08-06 DIGITAL TRANSMISSION SYSTEM IN LINES OF TRANSMISSION OF BRAIDED PAIRS. Expired - Lifetime ES2078854B1 (en)

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)

* Cited by examiner, † Cited by third party
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

Patent Citations (3)

* Cited by examiner, † Cited by third party
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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