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:
Jan. 29, 2008
Filed:
Jul. 18, 2005
Ronald A. Sartschev, Dunstable, MA (US);
Ronald A. Sartschev, Dunstable, MA (US);
Teradyne, Inc., North Reading, MA (US);
Abstract
Circuitry for driving a pin includes a first resistive circuit connected to the pin, a first transistor circuit to connect the first resistive circuit to a logic level voltage in response to a trigger voltage, the first transistor circuit and the first resistive circuit together defining a termination impedance, and a driver circuit to apply the trigger voltage to the first transistor circuit. The driver circuit includes counterparts to the first resistive circuit and the first transistor circuit. The counterparts define a counterpart impedance that is controlled to control the trigger voltage and thereby control the termination impedance.