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. 17, 1992
Filed:
Dec. 05, 1990
Barry A Alcorn, Ft. Collins, CO (US);
Hewlett-Packard Company, Palo Alto, CA (US);
Abstract
A system for providing receiver termination in automatic test equipment wherein the automatic test equipment is capable of testing a plurality of devices under test. The automatic test equipment has a plurality of receivers each of which is connected to the receiver termination system of the present invention. The system selectively connects each receiver termination to one of a plurality of devices under test. Each of the receiver terminations is connected between one of the automatic test equipment receivers and the analog multiplexor and provides a high reference voltage clamping value for clamping signals appearing on the input to the receiver at the high reference value tailored for the specific device under test. It also provides a low reference voltage for clamping signals appearing on the input of the receiver at a low reference voltage value tailored to the device under test. An analog reference control is connected to each of the plurality of receiver terminations and delivers to each receiver termination high and low reference voltage clamping values tailored for each device under test connected to the receiver termination. A state machine controls the delivery of the high and low reference clamping voltage values to the receiver terminations.