AAC Microtech(Changzhou) Co., Ltd Patent applications |
Patent application number | Title | Published |
20140153738 | WIRELESS INDUCTION SYSTEM FOR PRODUCING AUDIO - A wireless induction system includes a first device and a second device wirelessly connected the first device, the first device and the second device separated from each other. The first device is configured for generating electromagnetic signals and includes a signal source and a transmitting unit electrically connected with the signal source. The second device is configured for receiving electromagnetic signals and converting it into audio signals, and includes a receiving unit, a processor and a loudspeaker. | 06-05-2014 |
20140119591 | MICRO-SPEAKER - A micro-speaker is disclosed. The micro-speaker includes a frame defining a hollow space, a diaphragm attached to the frame, a voice coil positioned on the diaphragm, a cover covering the diaphragm and attached to the frame forming a housing, a yoke received in the hollow space and attached to the frame, a magnet received in the yoke, and a pole plate attached on the magnet. The yoke includes a bottom wall, and two ends of the base wall are provided with a groove corresponding to the magnetic gap, respectively. A width of the groove is greater than a thickness of the voice coil. | 05-01-2014 |
20140056464 | Micro-Speaker - A micro-speaker includes a vibrating unit including a diaphragm, a voice coil, and a magnetic circuit unit supporting the diaphragm. The diaphragm includes a position portion serving as an edge of the diaphragm. The voice coil includes a pair of terminals disposed at two sides thereof. The magnetic circuit unit includes a pair of slots communicating with outside of the micro-speaker for the terminals passing through. A projection of the diaphragm along the vibration direction on the base board is within an outline of the base board. The micro-speaker has no frame or any structure with a frame configuration, which makes the magnetic circuit unit enlarge for providing improved performance. | 02-27-2014 |
20140056446 | Micro-Speaker - A micro-speaker includes a vibrating unit including a diaphragm and a voice coil, and a magnetic circuit unit supporting the diaphragm. The diaphragm includes a position portion serving as an edge of the diaphragm. The magnetic circuit unit includes a base board, a first magnetic conduction member disposed at a central portion of the base board, a second magnetic conduction member around the first magnetic conduction member, and a magnetic gap formed by the first and second magnetic conduction members. A projection of the diaphragm along the vibration direction on the base board is within an outline of the base board. The micro-speaker has no frame or any structure with a frame configuration, which makes the magnetic circuit unit enlarge for providing improved performance. | 02-27-2014 |
20130259290 | Micro-Speaker - Disclosed is a micro-speaker. The micro-speaker includes a frame, a magnetic circuit unit assembled with the frame, a diaphragm extending along a longitudinal direction, a coil, an elastic member and an FPC. The diaphragm includes a top plate and a periphery portion surrounding the top plate. The top plate includes a supporting portion extending from the top plate towards the base wall of the frame and disposed at a periphery portion of the top plate in the longitudinal direction. The elastic member includes an elastic part, a first end connecting to the supporting portion of the diaphragm and a second end connecting to the frame. | 10-03-2013 |
20130259289 | MICRO-SPEAKER - A micro-speaker includes a case having a cavity and a receiving hole, a magnetic circuit unit and a vibrating unit with a voice coil received in the cavity, a pair of needle seats embedded in the case for electrically connecting with the voice coil, a pair of pogo-pins arranged in the receiving hole for electrically connecting with the pair of needle seats. Each of the pogo-pins has a barrel unit, a first protrusion and a second protrusion extending from an outer surface of the barrel unit, at least one plunger extending from the barrel unit and projecting out of the receiving hole, a receiving space formed between the first protrusion and the second protrusion. A third protrusion extends from an inner surface of the receiving hole and accommodated in the receiving space for fixing the pogo-pin in the corresponding receiving hole. | 10-03-2013 |