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.

Date of Patent:
May. 25, 1993

Filed:

Apr. 12, 1991
Applicant:
Inventors:

James L Levine, Yorktown Heights, NY (US);

Gregory F Russell, Yorktown Heights, NY (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G / ;
U.S. Cl.
CPC ...
340709 ; 340710 ; 340711 ; 340728 ;
Abstract

A method displays a visual 'trail' (12b) behind a moving cursor (12a) so that the cursor does not disappear from a liquid crystal display (12) during rapid cursor movement. The method interpolates and displays one or more intermediate cursor locations between a previous cursor location and a present cursor location. A method also extrapolates one or more future cursor locations (12c) from a present location and prematurely turns on, or biases, pixels located at the extrapolated future locations so that a significantly shorter period of time is required to cause the pixels to become visually distinct. The method also interpolates intermediate cursor locations between the present location and the one or more extrapolated locations and prematurely turns on the pixels at the interpolated locations.


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