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. 04, 1986
Filed:
Apr. 13, 1984
Arnold Uhlenhoff, Emmendingen, DE;
ITT Industries, Inc., New York, NY (US);
Abstract
To implement CMOS EXORs or EXNORs, four transistors are used which have one end of their channels tied to the gate output. The first and fourth transistors are one conductivity type, and the second and third transistors are of the other conductivity type. One of the inputs is split up into two sub-inputs to which one of the digital signals has to be applied in uninverted form and in inverted form, respectively. The other end of the channel of the fourth transistor is connected to the first sub-input in the case of the EXOR and to the second sub-input in the case of the EXNOR. The reverse is true for the channel of the third transistor, while the channels of the first and second transistors are connected to the second input. The latter is also connected to the gates of the third and fourth transistors. The gate of the first transistor is connected to the channel of the fourth transistor, while the gate of the second transistor is connected to the channel of the third transistor.