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. 06, 2001
Filed:
Dec. 08, 1999
Richard R. Muller, Jr., Malibu, CA (US);
Stephen A. Cohen, Andover, MA (US);
Analog Devices, Inc., Norwood, MA (US);
Abstract
A shaped pulse generation circuit for applications such as automatic test equipment pin drivers employs an active feedback circuit that adds a pre-emphasis to the output pulses, thereby compensating for the effect of the transmission system between the pin driver and the device under test. Current pulses are applied to the pin driver output transistors in conjunction with the production of rising and falling output pulse edges to produce edge overshoots that are mitigated during pulse transit to the device under test. The driver circuit together with the pre-emphasis active feedback circuit can be integrated onto a single chip, with an additional programming circuit employed to control the amount of pre-emphasis.