Patent application number | Description | Published |
20080232629 | Boundary microphone - In a boundary microphone, a high-frequency current caused by extraneous electromagnetic waves is prevented from flowing into a microphone case via a microphone cord that is drawn into the microphone case. A portion in which the microphone cord | 09-25-2008 |
20090097686 | BOUNDARY MICROPHONE - A boundary microphone, comprising: a base made of a metal; a cover made of a metal having a plurality of holes for introducing sound waves; and internal components including a microphone unit that is disposed in an internal space enclosed by the base and the cover; a first metallic part disposed on one side of the upper and lower sides of the internal components; and a second metallic part, which is disposed on other side of the upper and lower sides of the internal components and which encloses the internal components along with the first metallic part from all directions, are provided, wherein the base, the cover, the first metallic part, and the second metallic part are alternately overlapped at their peripheral portions, and wherein at least one of the first metallic part and the second metallic part is made of a metallic mesh. | 04-16-2009 |
20100303272 | BOUNDARY MICROPHONE AND DESKTOP ELECTRO-ACOUSTIC TRANSDUCER - A base having a flat shape; a support provided on a bottom surface of the base; a microphone unit incorporated in the base and converts sound into an electric signal; and a pressure sensitive switch with which an output signal from the microphone unit is turned on and off are included. At least one such pressure sensitive switch is provided to be pressed between the base and the support. | 12-02-2010 |
20100329483 | CAPACITOR MICROPHONE - Diaphragms of a plurality of capacitor microphone units are arranged in the same plane and the capacitor microphone units are connected in series to make an output from an impedance converter connected to one capacitor microphone unit drives a ground side of another capacitor microphone unit connected to the impedance converter. | 12-30-2010 |
20110058695 | CAPACITOR MICROPHONE - A capacitor microphone includes: a capacitor microphone unit; a microphone casing that incorporates the microphone unit and is provided with an opening communicating with a rear acoustic terminal of the microphone unit; and a shield plate that covers the opening in the microphone casing from inside of the microphone casing. The shield plate has a projection extending towards axial direction of the microphone casing at least on microphone unit side in the axial direction of the microphone casing. The projection is folded to be pressed firmly against the outer surface of a casing of the capacitor microphone unit. The shield plate is rolled into a cylindrical shape and is in contact with the inner surface of the microphone casing with pressure. | 03-10-2011 |
20110103594 | STEREO MICROPHONE UNIT AND STEREO MICROPHONE - A stereo capacitor microphone unit includes: two unidirectional microphone units integrally formed with respective fixed electrodes of the unidirectional microphone units facing each other; and an insulating spacer that is interposed between the fixed electrodes and provided with a gap formed at a portion of an outer periphery towards radial direction. The gap communicates fixed electrode rear spaces of the respective unidirectional microphone units with an external space to serve as a common rear acoustic terminal for the unidirectional microphone units. | 05-05-2011 |
20110103633 | CAPACITOR MICROPHONE UNIT AND CAPACITOR MICROPHONE - Electro-acoustic converters each include a diaphragm, and a fixed electrode apart from the diaphragm for a certain distance and facing the diaphragm. The electro-acoustic converters are anteroposteriorly disposed on the same axis in a single casing, and are electrically connected in series. The front and rear converters each include impedance converters, and are serially connected with each other together with the impedance converters. | 05-05-2011 |
20110170727 | Boundary Microphone - A boundary microphone includes a base, a microphone unit that is mounted onto the base and converts voice into electrical signals, and a pressure-sensitive switch of membrane type for an on/off operation of output signals from the microphone unit. The pressure-sensitive switch is physically isolated from the base, and is supported at the bottom thereof by a switch support comprising a hard material. | 07-14-2011 |
20110293117 | BOUNDARY MICROPHONE - A membrane pressure-sensitive switch includes a circuit board provided with an electrode pattern detecting electrical conductivity, a membrane having a conductive surface, and a spacer interposed between the membrane and the circuit board. The electrode pattern is surrounded by a ground pattern on the front surface of the circuit board. The ground pattern on the front surface is connected to another ground pattern on the rear surface of the circuit board. The spacer is composed of a conductive material. The conductive surface of the membrane, the ground pattern on the front surface of the circuit board, and the spacer are electrically conducted. The electrode pattern is disposed between the conductive surface of the membrane and the other ground pattern on the rear surface of the circuit board. | 12-01-2011 |
20120140972 | Dynamic Microphone - A dynamic microphone includes a vibration pickup that detects vibration of a dynamic microphone unit, and outputs a signal for cancelling vibration noise; and a microphone case that supports the microphone unit and the vibration pickup, wherein the vibration pickup includes a laminated ceramic piezoelectric element that detects vibration of a microphone unit case and outputs a signal corresponding to the detected vibration, the laminated ceramic piezoelectric element has a capacitance that defines a resonance circuit in conjunction with an inductance of an inductor, the resonance circuit producing a response signal to acceleration corresponding to that of the vibration noise, and the resonance circuit is connected such that the response signal is output in an opposite direction to the vibration noise signal. | 06-07-2012 |
20120263334 | GOOSENECK CONDENSER MICROPHONE - Provided is an integrated gooseneck condenser microphone including a microphone unit and an output module which are connected to each other. The gooseneck condenser microphone can improve the connection strength of a microphone housing and prevent the generation of noise due to disturbance electromagnetic waves. The gooseneck condenser microphone includes a connection member | 10-18-2012 |
20130216084 | UNIDIRECTIONAL CONDENSER MICROPHONE AND METHOD FOR ADJUSTING ACOUSTIC RESISTANCE - To provide an insulator, which supports a fixed pole in a unidirectional condenser microphone in a shareable manner among microphones that are different in the distance between acoustic terminals from one another. Coarse adjustment is performed on an insulator | 08-22-2013 |
20140112514 | VARIABLE DIRECTIVITY CONDENSER MICROPHONE - A first diaphragm FD and a second diaphragm RD are respectively arranged across a fixed electrode BP at both sides to constitute the variable directivity condenser microphone. A microphone body | 04-24-2014 |