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. 04, 2000
Filed:
Jan. 05, 1996
Applicant:
Inventors:
Peter Lucas, Pittsburgh, PA (US);
Jeffrey A Senn, Pittsburgh, PA (US);
Rashi Khanna, Monroeville, PA (US);
Assignee:
Digital Equipment Corporation, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06T / ;
U.S. Cl.
CPC ...
707526 ; 345343 ; 345434 ;
Abstract
An apparatus for displaying documents on a computer controlled display device provides a method for clipping. To clip a document is to restrict the viewable area of the screen object on the computer controlled display device associated with the document. A workspace viewer process maintains the documents in a three-dimensional virtual workspace. A document renderer and attribute-value pairs accomplish clipping in the virtual workspace. Clip stops constrain the clipping edges of a document so that the document may be clipped only to a specified set of positions.