US 8,860,337 B2
Linear vibration modules and linear-resonant vibration modulesGeneral
US 8,860,337 B2
Linear vibration modules and linear-resonant vibration modules
Tech Center:
2800 Semiconductors/Memory, Circuits/Measuring and Testing, Optics/Photocopying, Printing/Measuring and Testing
Examiner:
Karen Masih
Art Unit:
2837 Electrical Circuits and Systems
Inventors:
Robin Elenga; Brian Marc Pepin; Glen Tompkins
Assignee:
Priority:
05/18/09
Filed:
01/06/12
Granted:
10/14/14
Expiration:
04/05/30
Abstract
The current application is directed to various types of linear vibrational modules, including linear-resonant vibration modules, that can be incorporated in a wide variety of appliances, devices, and systems to provide vibrational forces. The vibrational forces are produced by linear oscillation of a weight or member, in turn produced by rapidly alternating the polarity of one or more driving electromagnets. Feedback control is used to maintain the vibrational frequency of linear-resonant vibration module at or near the resonant frequency for the linear-resonant vibration module. Both linear vibration modules and linear-resonant vibration modules can be designed to produce vibrational amplitude/frequency combinations throughout a large region of amplitude/frequency space.
Cooperative Patent Classification (CPC)
H02H02P25/032H02K33/16H02P