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:
Nov. 04, 2003
Filed:
Sep. 13, 2000
Applicant:
Inventors:
Cosmin Iorga, Oak Park, CA (US);
Alan B. Hussey, Oak Park, CA (US);
Gary Evans, Oak Park, CA (US);
Lucian Maria, Newbury Park, CA (US);
Assignee:
Teradyne, Inc., Boston, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 3/100 ; H03H 1/128 ;
U.S. Cl.
CPC ...
G01R 3/100 ; H03H 1/128 ;
Abstract
A high-speed tester channel architecture is disclosed for delivering and receiving signals to and from a device-under-test. The tester channel architecture includes drive/compare circuitry having respective driver and comparator transmission line paths and backmatch resistor circuitry to establish a backmatch condition. Peaking circuitry is disposed in each of the driver and comparator transmission line paths. The peaking circuitry includes a capacitive branch and an inductive branch operative to preserve the backmatch condition.