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. 28, 1995
Filed:
Nov. 30, 1994
Electronics and Telecommunications Research Institute, Daejeon, KR;
Abstract
To provide a binary-multilevel OR gate, a binary-multilevel AND gate, a binary-multilevel EXCLUSIVE OR gate and their operational methods, which enable direct logic operations between multilevel logic values and binary logic values, including logic operations between binary numbers, the present invention comprises a switch for performing binary-multilevel OR gate operations, which select and output according to binary logic signal values only an input out of its both inputs of a multilevel logic signal and a maximum value of the multilevel logic signal; a switch for performing binary-multilevel AND gate operations, which select and output according to binary logic signals only an input out of its both inputs of multilevel logic signals and a minimum value of the multilevel logic signal; and a switch for performing binary-multilevel EXCLUSIVE OR gate operations, which select and output according to binary logic signals only an input out of its both inputs of a multilevel logic signal and the complementary value of the multilevel logic signal. Accordingly, the present invention has an advantage of enabling the construction of economical and simple circuits.