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:
Mar. 09, 2010
Filed:
Dec. 02, 2005
Jonathan E Bosley, Tucson, AZ (US);
Jonathan E Bosley, Tucson, AZ (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
In controlled mechanical hardware, such as servo-controlled hardware, data from the control algorithm is obtained and logged for possible later analysis. Loss-less compression is provided without increasing the size of the storage memory. Instead of continuously storing the complete (absolute) value of a monitored control parameter, an absolute value is stored in an absolute entry and one or more values of the parameter which are relative to each preceding value are stored in a sequence of associated relative entries. The space required to store a relative value is less than the space required to store an absolute value. Updated absolute values and groups of associated relative values may also be recorded periodically or when a relative value is too large for the allotted space. The size of relative values may be variable and appropriate information data entries may be generated to indicate the size of associated relative entries.