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. 01, 2008
Filed:
Jul. 23, 2007
Roger Allen Booth, Jr., Rochester, MN (US);
Matthew Stephen Doyle, Rochester, MN (US);
Lynn Robert Landin, Rochester, MN (US);
Thomas W. Liang, Rochester, MN (US);
Ankur Kanu Patel, Byron, MN (US);
Roger Allen Booth, Jr., Rochester, MN (US);
Matthew Stephen Doyle, Rochester, MN (US);
Lynn Robert Landin, Rochester, MN (US);
Thomas W. Liang, Rochester, MN (US);
Ankur Kanu Patel, Byron, MN (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method and apparatus are provided for implementing automatic-calibration of a Time Domain Reflectometer (TDR) probing apparatus. A calibration procedure is performed automatically each time a TDR probe is moved from a device under test (DUT). A current calibration TDR waveform is obtained and compared with a reference calibration TDR waveform, checking for deviations between the current and reference measurements. If a deviation is detected, then the user is notified and calibration is failed.