The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 07, 2002
Filed:
May. 28, 1999
David A. Gradl, Naperville, IL (US);
Michael L. Steinberger, Woodenville, WA (US);
Lucent Technologies Inc., Murray Hill, NJ (US);
Abstract
A high speed digital signal connection interface with reduced cross talk includes a multiple pin connector with disconnectable header and receptacle portions. The header is attached to a first set of signal carrying wire pairs communicating with a first signal processing unit. The receptacle is attached to a second set of signal carrying wire pairs communicating with a second signal processing unit. Within each of the first and second wire pair sets is a first wire pair subset carrying digital signals travelling in a first direction between the signal processing units, and a second wire pair subset carrying digital signals travelling in a second direction between the signal processing units. The first and second wire pair sets are attached to the corrector such that adjacent pin pairs of the connector carry only signals travelling in the same direction and such that connector pin pairs carrying signals travelling in opposite directions are not adjacent to each other. An impedance matching circuit is provided for each signal-carrying wire pair of the first and second wire pair sets. Each impedance matching circuit has a first side connected to one of the signal processing units and a second side connected to one of the wire pairs at an impedance that substantially matches the wire pair impedance. The impedance matching circuits that connect to wire pairs carrying outgoing signals from a signal processing unit provide driver end impedance matching, and the impedance matching circuits that connect to wire pairs carrying incoming signals to a signal processing unit provide receiver end impedance matching.