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.

Date of Patent:
Jun. 11, 2002

Filed:

Jun. 02, 1999
Applicant:
Inventor:

Chung Lau, Fremont, CA (US);

Assignee:

Sun Microsystems, Inc., Palo Alto, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06K 9/40 ; G06F 1/130 ; G08C 2/500 ; H03M 1/300 ; H04L 1/00 ;
U.S. Cl.
CPC ...
G06K 9/40 ; G06F 1/130 ; G08C 2/500 ; H03M 1/300 ; H04L 1/00 ;
Abstract

A memory look up table receives a first portion of an input data signal via an address input, and in response provides an output data signal corresponding to one of a plurality of memory locations. The output data signal includes a mathematical approximation of the input data signal, at least one first stage delta signal, and at least one second stage delta signal. Random logic is coupled to the first stage delta signal and the second stage delta signal, and receives a second portion of the input data signal on an input. In response to the second portion and the first and second stage delta signals, the random logic calculates an incrementing or decrementing signal. An incrementor coupled to the random logic increments or decrements the mathematical approximation of the input data signal according to the incrementing or decrementing signal.


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