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:
Apr. 28, 1992
Filed:
Dec. 28, 1990
Applicant:
Inventor:
Frank A Montegari, Wappingers Falls, NY (US);
Assignee:
International Business Machines Corp., Armonk, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K / ; H03K / ;
U.S. Cl.
CPC ...
307463 ; 307449 ; 307475 ; 36523006 ;
Abstract
The present invention is directed to a decoder implemented with metal oxide semiconductor (MOS) field effect transistors (FETs) and a bipolar transistor in a collector-follower configuration. In one embodiment, NPN transistors perform decoding, FETs are used as pull-up devices and a PNP transistor in a collector-follower configuration is used to drive the output line. In a second embodiment, FETs perform decoding and are used as pull-up devices, and a PNP in a collector-follower configuration is used to drive the output line.