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. 07, 2000
Filed:
Apr. 21, 1998
Yoon Seok Song, Kyoungki-do, KR;
Dong Bum Koh, Kyoungki-do, KR;
Hyundai Electronics Industries Co., Ltd., Ichon-shi, KR;
Abstract
The present invention provides a method and an apparatus for performing multiply operation of floating point data in 2-cycle pipeline scheme, which can be applied to pipelined data path so that it is always capable of processing floating point data as long as the data is not contiguous, for reducing the area of the multiplier by reducing the number of basic cells used to 1/3 of that of basic cells used in conventional techniques. The present invention for multiplying floating point data includes the steps of: (a) receiving multiplier data and multiplicand data from pipelined input in the first cycle of multiply operation; (b) generating a partial product by means of the multiplier data and multiplicand data, and generating a first sum and a first carry by adding the partial product through an adding tree circuit; and (c) generating an output of the multiply operation by adding a second sum and a second carry to the first sum and the first carry, wherein the second sum and the second carry are generated by feedbacking the first sum and the first carry in the second cycle of the multiply operation which succeeds the first cycle.