THOMAS KARL MCFARLAND
Pilots at Winterdale Cir, Salt Lake City, UT
License number
Utah A4226704
Issued Date
Jan 2015
Expiration Date
Jan 2017
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
7682 Winterdale Cir, Salt Lake City, UT 84121
Professional information
Digital Shade Control For Color Crt Background And Cursors
US Patent:
4467322, Aug 21, 1984
Filed:
Aug 30, 1982
Appl. No.:
6/412688
Inventors:
Wayne D. Bell - Bountiful UT
Thomas K. McFarland - Salt Lake City UT
Thomas K. McFarland - Salt Lake City UT
Assignee:
Sperry Corporation - New York NY
International Classification:
G09G 128
US Classification:
340701
Abstract:
A color cathode ray tube is provided in a color monitor of a video display terminal. The red, green and blue color video input lines are connected to novel control circuits which permit the selection of several different shades of colors for the background or cursor. The circuits which control the background colors are pulse modulated to provide digital shade control of the background color selected and automatically control the color of the cursor so that a contrasting color is provided.