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:
Jan. 16, 2001
Filed:
Oct. 24, 1996
Scott Chiu, Tempe, AZ (US);
Scott R. Novis, Tempe, AZ (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A display driver circuit having graphics and bilevel modes drives a display (,). A column control circuit (,) includes a shift register (,) with display blanking and bi-directional shifting for scanning the display (,) in either direction for driving display (,) from either end. A dual mode row driver (,) provides graphics capability for displaying images and low power operation when displaying text. In graphics mode, a four-bit luminance word controls a row drive pulse to produce a representative pixel brightness in the display (,). In bilevel mode, the system clock (V,) is reduced in frequency to conserve power while maintaining data transfer and refresh rates.