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:
Jun. 02, 1998
Filed:
Aug. 21, 1996
Applicant:
Inventors:
Brian P Mathews, De Salle Terrace, CA (US);
Robert D Covey, Alameda, CA (US);
Assignee:
Autodesk, Inc., San Rafael, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03M / ;
U.S. Cl.
CPC ...
341 50 ; 341 51 ; 341 65 ; 341106 ; 341107 ;
Abstract
The present invention discloses a method, apparatus, and article of manufacture for compressing vector data. The vector data is normalized to create normalized vector data. A history buffer is searched for a longest matching vector data that matches the normalized vector data. The longest matching vector data is encoded by assigning a substitution code. The vector data is normalized by translating the vector data to an origin and scaling the vector data to a unit square. The substitution code includes a denormalization function, which converts the normalized vector data to vector data.