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:
Jun. 01, 1993
Filed:
Jul. 19, 1991
Oki Electric Industry Co., Ltd., Tokyo, JP;
Abstract
An absolute value arithmetic circuit for computing the absolute value of two binary input signals, includes: a computing circuit for obtaining a difference between the two input signals, a 1's complementor for non-inverting or inverting an output from the computing circuit in accordance with a positive sign bit or a negative sign bit of the output, a priority encoder for searching an output from the 1's complementor for the position of a first '0' bit from the least significant digit of the output and delivering an encoder output indicating the position of the first '0' bit, and a bit inverting circuit for inverting and delivering a bit row from the least significant digit bit to the '0' bit in the output from the 1's complementor in accordance with the encoder output, and directly delivering a bit row from a bit higher than the '0' bit to the most significant digit bit of the output without inverting them.