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:
Mar. 22, 2016
Filed:
Sep. 09, 2013
Applicant:
Immersion Corporation, San Jose, CA (US);
Inventors:
Richard Mar, Concord, CA (US);
Danny Grant, Laval, CA;
Assignee:
Immersion Corporation, San Jose, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G08B 6/00 (2006.01); G06F 3/01 (2006.01);
U.S. Cl.
CPC ...
G08B 6/00 (2013.01); G06F 3/016 (2013.01); G06F 3/011 (2013.01);
Abstract
A haptic drive circuit for an electrical muscle stimulation electrode has an input for receiving a haptic signal based on a haptic effect from a haptic effects processor. The drive circuit contains logic for generating a electrical muscle stimulation current based on the haptic signal. An electrode in contact with a user's skin receives the electrical muscle stimulation current, causing a haptic effect by contraction and relaxation of muscles near the electrode.