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:
Feb. 11, 1997
Filed:
Jun. 19, 1995
Jay M Stein, Vernon Hills, IL (US);
Bio-logic Systems Corp., Mundelein, IL (US);
Abstract
A method and apparatus for compressing a data vector of a predetermined number of data points. The apparatus includes a memory for storing the compressed data vector, a first comparator for determining a largest and smallest data point of the data vector and a second comparator for comparing the largest and smallest data point and when they are equal, causing a first data point of the data vector to be stored in the memory as the compressed data vector. The apparatus also includes a first processor for determining a data field width necessary to uniquely describe a largest relative magnitude data point and a second processor for storing the data points of the data vector as the compressed vector in data fields of memory of the data field width. The apparatus also includes a comparator and register for creating a difference vector of difference values of adjacent data points of the data vector, a first processor for determining a data field width necessary to uniquely describe a largest magnitude difference value of the difference vector, and a second processor for storing the difference points of the difference vector as the compressed vector in data fields of the memory of the determined field width along with a magnitude and sign of the first data point of the data vector.