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. 12, 2011
Filed:
Oct. 23, 2006
Michael J. Mills, Austin, TX (US);
Marius Goldenberg, Austin, TX (US);
Alan F. Hendrickson, Austin, TX (US);
Ion C. Tesu, Austin, TX (US);
Jiangtao Yi, Austin, TX (US);
Michael J. Mills, Austin, TX (US);
Marius Goldenberg, Austin, TX (US);
Alan F. Hendrickson, Austin, TX (US);
Ion C. Tesu, Austin, TX (US);
Jiangtao Yi, Austin, TX (US);
Silicon Laboratories, Inc., Austin, TX (US);
Abstract
A method of calibrating longitudinal balance for a subscriber line interface circuit includes providing a first and a second driver of a differential driver pair for driving a subscriber line. An output of each of the first and second drivers is coupled to a common output. The common output is coupled to an input of the first driver. The gain of at least one of the first and second drivers is adjusted until a calibration signal (V) present at the input of the first driver is substantially the same as a calibration signal (V) present at the input of the second driver.