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:
Aug. 11, 1987
Filed:
Oct. 18, 1984
Applicant:
Inventors:
James L Buxton, East Palo Alto, CA (US);
Alan C Phillips, Los Altos, CA (US);
Stanley K Honey, Newark, CA (US);
Assignee:
Etak, Inc., Menlo Park, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06G / ; G06G / ;
U.S. Cl.
CPC ...
364607 ; 3403 / ; 364800 ; 364851 ;
Abstract
A method and apparatus for generating a stroke on a display comprising a pair of pulse train generators coupled to a pair of charge pump and integrator assemblies by means of a switch assembly. In operation, a first pulse train corresponding to the larger of the X and Y components of the stroke and a second pulse train corresponding to the ratio of the X and Y components of the stroke control the magnitude of the output of the charge pump and integrator assemblies.