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:
Sep. 15, 2015
Filed:
Sep. 17, 2004
Adam C. Braun, Sunnyvale, CA (US);
Louis B. Rosenberg, San Jose, CA (US);
David F. Moore, San Carlos, CA (US);
Kenneth M. Martin, Los Gatos, CA (US);
Alex S. Goldenberg, Mountain View, CA (US);
Adam C. Braun, Sunnyvale, CA (US);
Louis B. Rosenberg, San Jose, CA (US);
David F. Moore, San Carlos, CA (US);
Kenneth M. Martin, Los Gatos, CA (US);
Alex S. Goldenberg, Mountain View, CA (US);
Immersion Corporation, San Jose, CA (US);
Abstract
Directional haptic feedback provided in a haptic feedback interface device. An interface device includes at least two actuator assemblies, which each include a moving inertial mass. A single control signal provided to the actuator assemblies at different magnitudes provides directional inertial sensations felt by the user. A greater magnitude waveform can be applied to one actuator to provide a sensation having a direction approximately corresponding to a position of that actuator in the housing. In another embodiment, the actuator assemblies each include a rotary inertial mass and the control signals have different duty cycles to provide directional sensations. For power-consumption efficiency, the control signals can be interlaced or pulsed at a different frequency and duty cycle to reduce average power requirements.