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:
Jul. 27, 1993
Filed:
Jun. 03, 1991
Thomas V Ferry, San Jose, CA (US);
Jamil Kawa, Santa Clara, CA (US);
Kerry M Pierce, Fremont, CA (US);
William G Walker, Saratoga, CA (US);
Michael A Zampaglione, San Jose, CA (US);
James S Hsue, San Francisco, CA (US);
VLSI Technology, Inc., San Jose, CA (US);
Abstract
A buffer characterized by a pull-up network and a pull-down network which are both coupled between an input and an output of the buffer. Each of the networks include a number of switch elements which can be sequentially turned on or off by means of an RC network to provide slew-rate control for the buffer. Preferably, each of the networks are associated with diode bypass networks to reduce crowbar current. In operation, both the pull-up network and the pull-down network turn on slowly but turn off very quickly due to the diode bypass networks.