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:
Feb. 07, 1989
Filed:
Mar. 17, 1987
Heinz-Peter Holzapfel, Munich, DE;
Karlheinrich Horninger, Eglharting, DE;
Siemens Aktiengesellschaft, Berlin and Munich, DE;
Abstract
Three-value modulo-2-adders consist of four circuit components (SC1, SC2, SC3, SC4) and an analysis circuit (AW). The first circuit component (SC1) generates an intermediate signal corresponding to the first binary value ('1') when two of the input signals (A, B, C) each assume the other binary value ('0'). The second circuit component (SC2) generates an intermediate signal (ZS2) corresponding to the other binary value when two input signals each assume the first binary value. The intermediate value emitted from the output of the third circuit component (SC3) is binary '0' when all three input signals assume the binary value '1'. The fourth circuit component (SC4) emits the binary value '1' when all the input signals have the binary value '0'. The analysis circuit (AW1) switches through the first or second intermediate signal to the output when the third intermediate signal has the value binary '1' and the fourth intermediate signal has the value binary '0', otherwise the third or fourth intermediate signal is switched through in inverted form to the output.