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:
May. 28, 1985
Filed:
Dec. 20, 1982
Applicant:
Inventors:
Albert D Edgar, Austin, TX (US);
Neil D Lubart, Austin, TX (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
358133 ; 340727 ; 358242 ; 364521 ;
Abstract
A diagonal pel grid is used in a raster scanned CRT display. This is achieved by displacing alternate scan fields by a half-pel in both axes to form a diagonal checkerboard grid that is interlaced in two axes. This substantially reduces the number of displayed pels to achieve a given quality as perceived by the human eye or substantially increases the apparent resolution of the image when the same number of pels are used as are used in a given rectangularly scanned application.