Patent application number | Description | Published |
20120237072 | UNIDIRECTIVE CONDENSER MICROPHONE UNIT AND CONDENSER MICROPHONE - A unidirective condenser microphone unit includes a diaphragm; a fixed electrode facing the diaphragm with a gap and defining a capacitor together with the diaphragm; an insulating spacer disposed adjacent to the rear surface of the fixed electrode and supporting the fixed electrode; an acoustic resistor disposed in an air chamber defined by the front surface of the insulating spacer and the fixed electrode; a unit case, a front acoustic terminal; and a rear acoustic terminal. The insulating spacer has a protrusion projecting toward the fixed electrode with a gap, and the protrusion is fixed to the surface of the fixed electrode with fixing material. | 09-20-2012 |
20120250926 | Condenser Microphone Unit and Condenser Microphone - A condenser microphone unit includes a diaphragm, a diaphragm ring, a fixed electrode, a casing unit accommodating the diaphragm ring, the diaphragm, and the fixed electrode. A condenser microphone includes the condenser microphone unit. The diaphragm ring is indirectly fixed to the interior of the unit casing through a fixing ring fixed to the unit casing. The fixing ring has a planar ring portion and a plurality of projections projecting from the internal periphery of the ring portion and provided in a circumferential direction. The plurality of projections urges the diaphragm ring toward the fixed electrode. | 10-04-2012 |
20120269367 | Condenser Microphone Unit and Condenser Microphone - A condenser microphone includes multiple condenser microphone units. Each unit includes an impedance converter. The condenser microphone units are connected in series such that outputs of the impedance converter in one of the condenser microphone units drive another of the condenser microphone units. A polarization voltage is accumulated to a DC voltage supplied from a DC voltage supply through a voltage adjuster to be applied to one of a diaphragm and a fixed electrode, and a voltage applied to the one of the diaphragm and the fixed electrode is adjusted by the voltage adjuster. | 10-25-2012 |
20120288101 | STEREO MICROPHONE - A stereo microphone has four condenser microphone units having respective directional axes in the same horizontal plane. The four units each have unidirectivity and a quadrangular shape viewed from the direction of the directional axis. The units are disposed by rotating the directional axes of adjacent units by 90°. A pair of two units diagonally positioned and having the directional axes directed at 180° to each other collaborate with each other to form a pair of bidirectional microphone units. | 11-15-2012 |
20120288113 | MICROPHONE - A microphone includes a plurality of microphone units; in which the microphone units include a first group of microphone units and a second group of microphone units, the first group of microphone units and the second group of microphone units are disposed alternately, the first group of microphone units are connected in series such that outputs from the first group of microphone units are added and outputted as an added output, the second group of microphone units are connected in series such that outputs from the second group of microphone units are added and outputted as another added output, and the added output of one of the first group of microphone units and the second group of microphone units is output from a hot terminal as a balanced output and the other added output is output from a cold terminal as a balanced output. | 11-15-2012 |
20130004009 | Microphone Adapter and Microphone - A microphone adapter is attachable to a microphone including a microphone unit and a casing having a front sound terminal and a back sound terminal. The microphone adapter has a bottom having a hole through which the casing of the microphone extends and a cylindrical peripheral wall integrated with the bottom, having an open end opposite to the bottom, and covering the periphery of the back sound terminal. The cylindrical peripheral wall has an internal diameter larger than the external diameter of the casing of the microphone so as to define a space between the cylindrical peripheral wall and the external peripheral surface of the casing of the microphone extending through the hole, and extends from the bottom at least to a position of the front sound terminal in a sound collection axis direction. | 01-03-2013 |
20130058510 | Dynamic Microphone Unit and Dynamic Microphone - A dynamic microphone unit includes: a diaphragm | 03-07-2013 |
20130058514 | Dynamic Microphone Unit and Dynamic Microphone - A dynamic microphone unit includes a diaphragm vibrating in response to received sound waves; a voice coil fixed to the diaphragm; a magnetic circuit generating magnetism in a magnetic gap where the voice coil is disposed; and an acoustic resistor disposed in a space adjacent to the reverse of the diaphragm. The acoustic resistor includes a cover disposed between a felt and the diaphragm. A case having an open end and a closed end accommodates the felt and the cover. The cover has holes transmitting sound waves at the closed end and a bending portion at the open end which urges the cover and the felt. | 03-07-2013 |
20130058515 | Dynamic Microphone Unit and Dynamic Microphone - A dynamic microphone unit has a diaphragm | 03-07-2013 |