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:
Oct. 26, 1999
Filed:
Dec. 01, 1997
Toru Morikawa, Katano, JP;
Nobuo Higaki, Osaka, JP;
Akira Miyoshi, Hirakata, JP;
Keizo Sumida, Hirakata, JP;
Abstract
A processor which executes positive conversion processing, which converts coded data into uncoded data, and saturation calculation processing, which rounds a value to an appropriate number of bits, at high speed. When a positive conversion saturation calculation instruction 'MCSST D1' is decoded, the sum-product result register 6 outputs its held value to the path P1. The comparator 22 compares the magnitude of the held value of the sum-product result register 6 with the coded 32-bit integer '0x0000.sub.-- 00FF'. The polarity judging unit 23 judges whether the eighth bit of the value held by the sum-product result register 6 is 'ON'. The multiplexer 24 outputs one of the maximum value '0x0000.sub.-- 00FF' generated by the constant generator 21, the zero value '0x0000.sub.-- 0000' generated by the zero generator 25, and the held value of the sum-product result register 6 to the data bus 18.