Patent application number | Description | Published |
20090016561 | ARMATURE FOR A RECEIVER - An armature for a receiver comprising a first and a second leg portion each having a thickness and a width and connected to each other, and a connection portion in communication with the first and second leg portions. The connection portion has a width greater than the width of the first and second leg portions individually. The connection portion reduces the stiffness of the armature and minimizes magnetic reluctance of the connection between the first and second leg portions. According to one aspect of the invention, the first and second leg portions are integrally formed with the connection portion and the connection portion includes a least a portion having a thickness less than the thickness of the first and second leg portions individually to reduce the stiffness of the armature. According to another aspect of the invention, the first and second leg portions are separately formed and attached to the connection portion in a way that reduces the stiffness of the armature. | 01-15-2009 |
20110129108 | Acoustic Valve Mechanisms - A valve for a personal auditory system is described. The auditory system is capable of converting between an acoustic signal and an electrical signal. The auditory system has an acoustic pathway through which an acoustic signal may travel between a first point exterior to the auditory system and a second point interior to the auditory system. The valve includes a free floating electrode and a second electrode adjacent to free floating electrode. An electric signal that is generated by the second electrode moves the free floating electrode to substantially open or close the acoustic pathway. | 06-02-2011 |
20130064406 | RF SHIELDING FOR ACOUSTIC DEVICES - A receiver includes a housing and a sleeve. The housing forms a chamber, and the coil is disposed in the chamber and radiates a flux. The sleeve at least partially surrounds the coil such that a majority of flux radiated from the coil is blocked by the sleeve. The sleeve is constructed of a highly conductive material and is insulated from the housing | 03-14-2013 |
20130142358 | Variable Directivity MEMS Microphone - The directivity pattern of a MEMS microphone is adjusted. An indication of a position of a MEMS microphone is received and the microphone includes at least one diaphragm. An adjustment to the position of the MEMS microphone is determined. Based upon the adjustment, a position of the at least one diaphragm is adjusted. The adjusting is effective to alter a directivity pattern of the microphone. | 06-06-2013 |
20130272564 | RECEIVER WITH A NON-UNIFORM SHAPED HOUSING - A balanced armature receiver includes a magnet, a coil, and a housing. The magnet and the coil are disposed within the housing and the housing comprising a bottom surface. The bottom surface includes a first bottom portion with a first dimension and a second bottom portion with a second dimension. The bottom surface further includes a stepped portion that is integrally formed with and connects the first bottom portion and the second bottom portion. The first dimension is greater than the second dimension. A second base of the second bottom portion is coupled to the magnet. The second base is adjacent to a first base formed in the first bottom portion allowing the coil to extend through a plane where the magnet and the second base meet. | 10-17-2013 |
20140355787 | ACOUSTIC RECEIVER WITH INTERNAL SCREEN - An acoustic apparatus includes a high frequency driver that has a first front volume and a low frequency driver that has a second front volume. The first front volume and the second front volume communicate with each other to form a common front volume. At least one acoustic resistance is placed between the first front volume and the second front volume. The acoustic resistance acts as a low pass filter. | 12-04-2014 |