Patent application number | Description | Published |
20100296690 | ELECTRO-ACOUSTIC TRANSDUCER - An electro-acoustic transducer is disclosed. The electro-acoustic transducer includes a case, a magnetic circuit and a vibrating device. The magnetic circuit includes a magnetic bowl coupled to the case, a magnet positioned in the magnetic bowl, a pole plate covering the magnet. A magnetic gap is formed by the magnet and the magnetic bowl. The vibrating device includes a diaphragm vibrating along a vibrating direction, and a voice coil connected to the diaphragm. The pole plate has a first top surface, a first bottom surface, and a first through hole extending from the first top surface to the first bottom surface. A projection of the first through hole along the vibrating direction overlaps at least a part of the magnetic gap. | 11-25-2010 |
20110261992 | MAGNETIC CIRCUIT UNIT AND SPEAKER USING SAME - A magnetic circuit unit includes a yoke, a magnet positioned on the yoke, a plate on the magnet. The yoke includes a bottom defining a central hole therein, and a wall extending from the bottom. The magnet is positioned on the bottom of the yoke. The plate defines a base coupled to a top surface of the magnet, and a central pole extending from the base and getting through the annular magnet with an end thereof suspended in the central hole of the yoke. Thus, a first magnetic gap is formed between the wall of the yoke and an outer side of the annular magnet, and a second magnetic gap is formed between the central pole of the plate and an inner side of the annular magnet. A speaker using the magnetic circuit unit described above is disclosed. | 10-27-2011 |
20120163644 | SPEAKER AND METHOD FOR FABRICATING SAME - A method for fabricating a speaker is disclosed. The speaker is equipped with a case having a through cavity, an inner surface forming the cavity and an outer surface, a magnetic bowl coupled to the case, a magnet positioned in the magnetic bowl, a pole plate covering the magnet, a magnetic gap formed by the magnet and the magnetic bowl, a diaphragm supported by the case and vibrating along a vibrating direction, a voice coil connected to the diaphragm, and a hearing aid coil formed on the case. The method includes the steps of: providing a case made of thermoplastic doped with organometallic additive; activating the organometallic additive in the case by a laser beam for forming initial pattern of the hearing aid coil in the inner surface of the case; and bathing the case in copper solution for providing the initial pattern with copper plating layer. | 06-28-2012 |
20130016867 | EARPIECE HAVING MULTIPLE AUDIO CHAMBERSAANM Xi; Li-shuAACI ShenzhenAACO CNAAGP Xi; Li-shu Shenzhen CNAANM Qu; Shi-minAACI ShenzhenAACO CNAAGP Qu; Shi-min Shenzhen CNAANM Huang; Xing-zhiAACI ShenzhenAACO CNAAGP Huang; Xing-zhi Shenzhen CN - An earpiece is disclosed. The earpiece includes a housing forming a volume, a number of sound holes arranged in the front end and rear end of the housing, a sound generator accommodated in the chamber for dividing the volume into several parts isolated with each other, and a wire electrically connected to the sound generator for providing audio signals to the sound generator. Each of several parts of the volume communicates with the outside of the earpiece via a corresponding sound hole in the housing. | 01-17-2013 |
20130016874 | MICRO-SPEAKERAANM Huang; Xing-zhiAACI ShenzhenAACO CNAAGP Huang; Xing-zhi Shenzhen CNAANM Xi; Li-zhuAACI ShenzhenAACO CNAAGP Xi; Li-zhu Shenzhen CNAANM Zhang; XiongAACI ShenzhenAACO CNAAGP Zhang; Xiong Shenzhen CN - A micro-speaker includes a frame, a diaphragm mounted on the frame, a magnetic system received in the frame and defining a magnetic gap, a voice coil driving the diaphragm and suspended in the magnetic gap, and a suspension having a body portion and at least a pair of connecting portion extending from the body portion and mounted on the frame. The body portion of the suspension connects with the voice coil and far away from the diaphragm for cooperating with the diaphragm to fix the coil firmly, thereby ensuring the vibrating of the diaphragm is stable and balanced. | 01-17-2013 |
20140072162 | Speaker Box - One embodiment of the invention discloses a speaker box having a housing and a speaker accommodated in the housing. The speaker includes a sound radiation surface for generating sound. The housing includes a first and second output ports disposed at one side of the housing for transmitting the sound to outside of the speaker box. The housing includes a plurality of ribs disposed therein and forming a bending channel. The first and second output ports are disposed at two ends of the bending channel. The bending channel is divided into a front channel and a back channel by the speaker. The speaker box is capable of obtaining a better low frequency sound reproduction quality. | 03-13-2014 |
20140083795 | COMPOUND MEMBRANE AND ACOUSTIC DEVICE USING SAME - The present disclosure provides a compound membrane and an acoustic device including such a compound membrane. The compound membrane includes a polyetherimide film, and a thermoplastic polyurethance elastomer attached to one surface of the polyetherimide film. | 03-27-2014 |
20140083797 | COMPOUND MEMBRANE AND ACOUSTIC DEVICE USING SAME - The present disclosure provides a compound membrane and an acoustic device including such a compound membrane. The compound membrane includes a polyarylate film, and a thermoplastic polyurethane elastomer attached to one surface of the polyarylate film. | 03-27-2014 |
20140087131 | COMPOUND MEMBRANE AND ACOUSTIC DEVICE USING SAME - The present disclosure provides a compound membrane and an acoustic device including such a compound membrane. The compound membrane includes a polyethylene terephthalate film, and a thermoplastic polyurethance elastomer attached to one surface of the polyethylene terephthalate film. | 03-27-2014 |
20140087132 | COMPOUND MEMBRANE AND ACOUSTIC DEVICE USING SAME - The present disclosure provides a compound membrane and an acoustic device including such a compound membrane. The compound membrane includes a polyethylene naphthalate film, and a thermoplastic polyurethance elastomer attached to one surface of the polyethylene naphthalate film. | 03-27-2014 |
20140087133 | COMPOUND MEMBRANE AND ACOUSTIC DEVICE USING SAME - The present disclosure provides a compound membrane and an acoustic device including such a compound membrane. The compound membrane includes a polyetheretherketone film, and a thermoplastic polyurethance elastomer attached to one surface of the polyetheretherketone film. | 03-27-2014 |
20140087148 | COMPOUND MEMBRANE AND ACOUSTIC DEVICE USING SAME - The present disclosure provides a compound membrane and an acoustic device including such a compound membrane. The compound membrane includes a polyphenylene sulfide film, and a thermoplastic polyurethance elastomer attached to one surface of the polyphenylene sulfide film. | 03-27-2014 |