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:
Apr. 17, 2007
Filed:
Mar. 18, 2004
Applicant:
Richard L. Cunningham, Washington, DC (US);
Inventor:
Richard L. Cunningham, Washington, DC (US);
Assignee:
Immersion Corporation, San Jose, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
G09G 5/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method and apparatus is described for applying haptic feedback using a vacuum source. A housing includes a cavity. The cavity can be positioned near a moveable member such that the cavity of the housing and the moveable member define a volume. The volume has an associated internal pressure. The internal pressure within the volume can be modified based on a received signal such that a resistive force is applied to the moveable member as the pressure is modified.