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:
Apr. 21, 1998
Filed:
Jun. 27, 1995
Shao Wei Pan, Schaumburg, IL (US);
Shay-Ping T Wang, Long Grove, IL (US);
Nicholas M Labun, Chicago, IL (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A pixel map signal is converted into a coefficient signal of block coefficient signals, each representing the pixels in a pixel map block (420) with the coefficients in a hybrid polynomial. The hybrid polynomial contains discrete cosine terms, a constant term separated from the discrete cosine terms, and polynomial terms. Each block coefficient signal contains a background component representing a coefficient of the constant term, a linear component representing the coefficients of a the polynomial terms, and a nonlinear component representing the coefficients of the discrete cosine terms. The background component represents constant, unchanging pixel values in a pixel map block (420), the linear component represents linearly changing pixel values in a pixel map block (420), and the nonlinear component represents nonlinear patterns in a pixel map block (420).