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:
Apr. 20, 2004
Filed:
Nov. 24, 1998
Bernard F. Bareis, Plano, TX (US);
Premisenet Incorporated, Richardson, TX (US);
Abstract
An adaptive transmission line impedance matching device and method are disclosed. The device and method can be used, for example, in xDSL and home phone line network applications. The adaptive impedance matching device comprises a signal transmission section, a signal receiving section, a variable impedance matching network and a signal analysis section. The signal receiving section is operable to receive signal information transmitted across a transmission line. The signal analysis section is then operable to calculate a proper impedance match based upon the signal information and to adjust the variable impedance matching network according to the calculated impedance match. The device and method are robust enough, for example, to account for dynamic mismatches when telephone sets are taken off-hook during digital (e.g., xDSL) network operation.