Multi-functional vibrating actuator
December 27, 2022. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesVibration generating apparatus Vibration actuator for pager Electro-mechanical and acoustic transducer for portable terminal unit Multifunction acoustic device Multi-functional vibration actuator Electromagnetic actuator Speaker having a device capable of generating sound and vibration Compact high performance speaker Concentric magnetic configuration for loudspeakers Patent #: 6639995 InventorsAssigneeApplicationNo. 10469149 filed on 12/27/2002US Classes:310/81, Unbalanced weight (e.g., vibrators)381/396, Electromagnetic (e.g., dyynamic)381/402, For different frequencies381/420, Having central magnetic portion340/388.1, Diaphragm (e.g., horn or buzzer)381/413, Having damping335/222, With relatively movable coil and permanent magnet (e.g., D'Arsonval type) position on the cathode ray tube)381/406, Field coil381/421, Plural magnets381/412Magnetic circuitExaminersPrimary: Le, DangAttorney, Agent or FirmForeign Patent References
International ClassH02K 706AbstractAn amount of movement of an air passing through a clearance G2 is adjusted by adjusting the clearance G2 by placing an outer shape surface 35 of a yoke 3 in proximity of an inner side surface of a housing 1. Accordingly, a vibration characteristic having a wide frequency bandwidth can be obtained, thereby improving stability and convenience of body-sensible vibration characteristic of a multifunctional vibration actuator.Field of SearchUnbalanced weight (e.g., vibrators)With sound transducer details Critically defined material or lamination Inverted (e.g., within cone) Having diaphragm support feature Spider Flux modifying means Having central magnetic portion Basket detail Magnetic liquid Armature linked to diaphragm Specified diaphragm shape or structure Dome or round Metal Pattern Plural portions or sections Particular bobbin structure Like poles adjacent Having damping Conical Centering from within bobbin or diaphragm Apertures in surface Conductive diaphragm (e.g., ribbon) Wiring structure Coil coating, winding layer structure, or wire Armature diaphragm Centering from outside bobbin or diaphragm Honeycomb Fibrous For different frequencies Flat Including adjustment mechanism Plural magnets Magnetic circuit Cooling feature Electromagnetic (e.g., dyynamic) Movable voice coil Multiple voice coils Not having central magnetic portion Field coil | |
