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. 13, 2003
Filed:
Dec. 18, 1998
Yaser Ibrahim, Dallas, TX (US);
Michael O. Polley, Richardson, TX (US);
Ralph E. Payne, Dallas, TX (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A digital subscriber line modem ( ) capable of operating with multiple transmission line profiles depending on the current transmission line characteristics of a wire line pair ( ) includes an interface ( ) to the wire line pair ( ) and a signal converter ( ) with a terminal coupled to the interface. An on/off-hook detector( ) drives an impedance analyzer function ( ) that is able to measure transmission line parameters based on the current line characteristics of the wire line pair ( ). A control logic block ( ) performs the actions required to adapt to a new line conditions of the wire line pair ( ) and rapidly adapt to the new on/off hook condition.