Multistage capacitive crosstalk compensation arrangement
First Claim
1. A method for providing crosstalk compensation in a jack, the crosstalk compensation being adapted to compensate for undesired crosstalk generated at a capacitive coupling located at a plug inserted within the jack, the method comprising:
- positioning a first capacitive coupling between first and second wire pairs of the jack at a first time delay away from the capacitive coupling of the plug;
positioning a second capacitive coupling including at least first and second capacitive elements between the first and second wire pairs at a second time delay from the first capacitive coupling, wherein the second time delay corresponding to an average time delay that optimizes near end crosstalk, and wherein different time delays of the first and second capacitive elements in the second capacitive coupling are centered about the average time delay to optimize near end crosstalk and are spaced apart to compensate for far end crosstalk.
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Accused Products
Abstract
Methods and systems for providing crosstalk compensation in a jack are disclosed. According to one method, the crosstalk compensation is adapted to compensate for undesired crosstalk generated at a capacitive coupling located at a plug inserted within the jack. The method includes positioning a first capacitive coupling a first time delay away from the capacitive coupling of the plug, the first capacitive coupling having a greater magnitude and an opposite polarity as compared to the capacitive coupling of the plug. The method also includes positioning a second capacitive coupling at a second time delay from the first capacitive coupling, the second time delay corresponding to an average time delay that optimizes near end crosstalk. The second capacitive coupling has generally the same overall magnitude but an opposite polarity as compared to the first capacitive coupling, and includes two capacitive elements spaced at different time delays from the first capacitive coupling.
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Citations
20 Claims
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1. A method for providing crosstalk compensation in a jack, the crosstalk compensation being adapted to compensate for undesired crosstalk generated at a capacitive coupling located at a plug inserted within the jack, the method comprising:
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positioning a first capacitive coupling between first and second wire pairs of the jack at a first time delay away from the capacitive coupling of the plug; positioning a second capacitive coupling including at least first and second capacitive elements between the first and second wire pairs at a second time delay from the first capacitive coupling, wherein the second time delay corresponding to an average time delay that optimizes near end crosstalk, and wherein different time delays of the first and second capacitive elements in the second capacitive coupling are centered about the average time delay to optimize near end crosstalk and are spaced apart to compensate for far end crosstalk. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A telecommunications jack for use in a twisted pair system, the jack comprising:
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a plurality of contact springs adapted to make electrical contact with a plug when the plug is inserted into the jack; a plurality of wire termination contacts for terminating wires to the jack; a crosstalk compensation arrangement that provides crosstalk compensation between elected tracks extending between the contact springs and the wire termination contacts, the crosstalk compensation arrangement including a first zone of compensation a first time delay away from a capacitive coupling of the plug and a second zone of compensation at a second time delay from the first zone of compensation, the second zone of compensation including two capacitive elements spaced at different time delays from the first zone of compensation to optimize far end crosstalk and having an average time delay that optimizes near end crosstalk. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A method for providing crosstalk compensation in a jack, the crosstalk compensation being adapted to compensate for undesired crosstalk generated at a capacitive coupling located at a plug inserted within the jack, the method comprising:
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positioning a first capacitive coupling between first and second wire pairs of the jack at a first time delay away from the capacitive coupling of the plug, the first capacitive coupling including at least two capacitive elements, wherein the at least two capacitive elements of the first capacitive coupling vary in magnitude, thereby reducing alien crosstalk generated by the plug and jack; positioning a second capacitive coupling including at least first and second capacitive elements between the first and second wire pairs at a second time delay from the first capacitive coupling, the second time delay corresponding to an average time delay that optimizes near end crosstalk; and positioning a third capacitive coupling a third time delay away from the second capacitive coupling, such that the third time delay is approximately the same as the first time delay. - View Dependent Claims (17, 18)
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19. A telecommunications jack for use in a twisted pair system, the jack comprising:
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a plurality of contact springs adapted to make electrical contact with a plug when the plug is inserted into the jack; a plurality of wire termination contacts for terminating wires to the jack; a crosstalk compensation arrangement that provides crosstalk compensation between elected tracks extending between the contact springs and the wire termination contacts, the crosstalk compensation arrangement including a first zone of compensation a first time delay away from a capacitive coupling of the plug and a second zone of compensation at a second time delay from the first zone of compensation, the second zone of compensation having first and second crosstalk compensating elements spaced at different time delays from the first zone of compensation and at an average time delay that optimizes near end crosstalk. - View Dependent Claims (20)
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Specification