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:
Sep. 29, 1992
Filed:
Nov. 06, 1990
Craig S Thrower, San Jose, CA (US);
King C Wang, El Monte, CA (US);
Vitelic Corporation, San Jose, CA (US);
Abstract
A TTL to CMOS input buffer circuit is provided which includes a level shifting circuit including an input terminal and an output node for receiving at the input terminal an input signal at a TTL logic voltage level and for providing at the output node an output signal at a CMOS logic voltage level, the output signal being a logically inverted version of the input signal; and a first circuit for speeding a transition of the output signal from a low CMOS voltage level to a high CMOS voltage level; and a second circuit for preventing the first circuit from interfering with a transition of the output signal from the high CMOS voltage level to the low CMOS voltage level.