Communication connector with crosstalk compensation
First Claim
1. A circuit for crosstalk compensation, said circuit comprising:
- a first, a second, a third, and a fourth signal conductors,said first and said fourth signal conductors forming a first signal-pair, and said second and said third signal conductors forming a second signal-pair; and
a first offshoot conductor having a first end and a second end, said first end of said first offshoot conductor being connected to said second signal conductor and said second end of said first offshoot conductor being capacitively coupled to said third signal conductor,wherein a first capacitive coupling and a first mutual inductive coupling occur between at least a portion of said first signal conductor and at least a portion of said first offshoot conductor.
1 Assignment
0 Petitions
Accused Products
Abstract
A communication connector comprising plug interface contacts having a plurality of conductor pairs, and corresponding cable connector contacts. A printed circuit board connects the plug interface contacts to respective cable connector contacts. The printed circuit board includes circuitry between a first conductor pair and a second conductor pair. The circuitry has a first mutually inductive coupling between a first conductor of the first conductor pair and a first conductor of the second conductor pair, a first capacitive coupling between the first conductor of the first conductor pair and the first conductor of the second conductor pair. The first capacitive coupling is approximately concurrent with the first mutually inductive coupling. A shunt capacitive coupling connects the first conductor of the second conductor pair to a second conductor of the second conductor pair.
127 Citations
47 Claims
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1. A circuit for crosstalk compensation, said circuit comprising:
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a first, a second, a third, and a fourth signal conductors, said first and said fourth signal conductors forming a first signal-pair, and said second and said third signal conductors forming a second signal-pair; and a first offshoot conductor having a first end and a second end, said first end of said first offshoot conductor being connected to said second signal conductor and said second end of said first offshoot conductor being capacitively coupled to said third signal conductor, wherein a first capacitive coupling and a first mutual inductive coupling occur between at least a portion of said first signal conductor and at least a portion of said first offshoot conductor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A communication jack, comprising:
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a first, a second, a third, and a fourth signal conductors, each of said first, said second, said third, and said fourth signal conductors having a respective plug interface contact, a respective insulation displacement contact, and a respective signal trace connecting said respective plug interface contact to said respective insulation displacement contact, said first and said fourth signal conductors forming a first signal-pair, and said second and said third signal conductors forming a second signal-pair; and a first offshoot conductor having a first end and a second end, said first end of said first offshoot conductor being connected to said second signal conductor and said second end of said first offshoot conductor being capacitively coupled to said third signal conductor, wherein a first capacitive coupling and a first mutual inductive coupling occur between at least a portion of said first signal conductor and at least a portion of said first offshoot conductor. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A communication system comprising:
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a communication equipment; and a communication jack installed in said communication equipment, said communication jack including; a first, a second, a third, and a fourth signal conductors, each of said first, said second, said third, and said fourth signal conductors having a respective plug interface contact, a respective insulation displacement contact, and a respective signal trace connecting said respective plug interface contact to said respective insulation displacement contact, said first and said fourth signal conductors forming a first signal-pair, and said second and said third signal conductors forming a second signal-pair; and a first offshoot conductor having a first end and a second end, said first end of said first offshoot conductor being connected to said second signal conductor and said second end of said first offshoot conductor being capacitively coupled to said third signal conductor, wherein a first capacitive coupling and a first mutual inductive coupling occur between at least a portion of said first signal conductor and at least a portion of said first offshoot conductor.
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26. A method for compensating for undesired crosstalk within a communication jack having a first, a second, a third, and a fourth signal conductors, said first and said fourth signal conductors forming a first signal-pair, and said second and said third signal conductors forming a second signal-pair, said method comprising the steps of:
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providing a first offshoot conductor having a first end and a second end; connecting said first end of said first offshoot conductor to said second signal conductor; capacitively coupling said second end of said first offshoot conductor with said third signal conductor; and capacitively and mutual-inductively coupling at least a portion of said first signal conductor with at least a portion of said first offshoot conductor, producing a first capacitive signal and a first mutual inductive signal, respectively. - View Dependent Claims (27)
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28. A communication connector, comprising:
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plug interface contacts including a plurality of conductor pairs; cable connector contacts; and a printed circuit board connecting said plug interface contacts to respective said cable connector contacts, said printed circuit board including circuitry between a first said conductor pair and a second said conductor pair, said circuitry including a first mutually inductive coupling between a first conductor of said first conductor pair and a first conductor of said second conductor pair, and a first capacitive coupling between said first conductor of said first conductor pair and said first conductor of said second conductor pair, said first capacitive coupling approximately concurrent with said first mutually inductive coupling, and said circuitry being capacitively coupled to a second conductor of said second conductor pair. - View Dependent Claims (29, 30, 31, 32, 33, 34)
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35. A communication system, comprising:
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communication equipment; and a communication connector connected to said communication equipment, the communication connector including plug interface contacts having a plurality of conductor pairs, cable connector contacts, and a printed circuit board connecting said plug interface contacts to respective said cable connector contacts, said printed circuit board including circuitry between a first said conductor pair and a second said conductor pair, said circuitry including a first mutually inductive coupling between a first conductor of said first conductor pair and a first conductor of said second conductor pair, and a first capacitive coupling between said first conductor of said first conductor pair and said first conductor of said second conductor pair, said first capacitive coupling approximately concurrent with said first mutually inductive coupling, and said circuitry being capacitively coupled to a second conductor of said second conductor pair. - View Dependent Claims (36, 37, 38, 39, 40, 41)
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42. A method of compensation between a plurality of conductor pairs in a communication jack, comprising the steps of:
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providing a connector including plug interface contacts, cable connector contacts, first circuitry having a plurality of conductor pairs connecting respective said plug interface contacts and respective said cable connector contacts, and second circuitry connected to at least some of said first circuitry; capacitive coupling and mutually inductive coupling a first conductor of a first conductor pair to a first conductor of a second conductor pair to produce a first capacitive coupling and a first mutually inductive coupling, respectively, via said second circuitry; and shifting a phase of the first mutually inductive coupling to be approximately orthogonal to the first capacitive coupling by capacitively coupling said second circuitry to a second conductor of said first conductor pair via a second capacitive coupling. - View Dependent Claims (43, 44, 45, 46, 47)
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Specification