Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 8345898 | Transducer assembly A transducer assembly includes a first electroacoustic transducer and a second electroacoustic transducer. The first and the second electrostatic transducers include an electrode and a counter electrode. An inner circumference of an outer diaphragm section lying wit... | 01/01/2013 |
| 8284952 | Modeling of a microphone A system that models a microphone may include capsules that receive individual signals. The signals may be combined and modified based on a weighting factor. Directivity patterns of a converted signal may be modified or controlled based on the weighting of the signa... | 10/09/2012 |
| 8280094 | In-ear earphone An earphone device converts electric signals to audible sound. The earphone includes a first electroacoustic transducer and a second electroacoustic transducer. A separating part of the earphone is positioned between the second transducer and a sound opening of a pl... | 10/02/2012 |
| 8260608 | Dropout concealment for a multi-channel arrangement A method conceals dropouts in one or more audio channels of a multi-channel arrangement. The method maps transmitted signals into a frequency domain during an error-free signal transmission of two or more channels. A magnitude spectra and spectral filter coefficient... | 09/04/2012 |
| 8208679 | Transducer membrane with symmetrical curvature A transducer membrane enhances sound reproduction. Curved portions of the membrane periphery contribute to the enhanced sound reproduction. The transducer membrane may add or improve sound reproduction capability in cell phones, gaming systems, personal data assista... | 06/26/2012 |
| 8170260 | System for determining the position of sound sources A system determines the position of a sound source with a microphone in a fixed coordinate system. The microphone measures audio signals that are analyzed and processed to determine the position of the sound source in the fixed coordinate system. The system may adju... | 05/01/2012 |
| 8130126 | Analog to digital conversion system The system converts an analog input signal into a digital output signal while avoiding interference, such as clipping. The system derives two signal components having differing signal magnitude levels from the analog input signal. The signal components are subjected... | 03/06/2012 |
| 8086201 | Diversity receiving device A diversity receiving device includes two signal paths. Each path interfaces an antenna that receives a radio frequency signal and an amplifier that amplifies the received radio frequency signal. A variable signal level attenuator in each path attenuates the amplifi... | 12/27/2011 |
| 7873176 | Electrostatic microphone An electrostatic microphone has a capsule housing and a diaphragm, a rigid electrode, and an electrical circuit on a printed circuit board arranged in the capsule housing. The diaphragm is connected to a ring shoulder provided on the front side of the capsule housin... | 01/18/2011 |
| 7835531 | Microphone system A microphone system includes a microphone capsule, an audio amplifier and microphone electronics. A phantom power supply provides power to the audio amplifier and the microphone electronics through cable conductors. The microphone system includes a power supply that... | 11/16/2010 |
| 7711137 | Transducer with deformable corner A transducer generates acoustic energy. The transducer is suitable for incorporation into any device that needs sound reproduction capability, including devices with generally rectangular geometries such as cell phones, PDAs, and portable gaming devices. The transdu... | 05/04/2010 |
| D598011 | Microphone | 08/11/2009 |
| 7522737 | Microphones with equal sensitivity A microphone and a method for producing a microphone with a sensitivity stipulated within narrow limits. The microphone each has a microphone capsule and an amplifier. A network of passive components, preferably resistors, is allocated to the amplifier. The sensitiv... | 04/21/2009 |
| D590809 | Receiver | 04/21/2009 |
| D589490 | Transmitter | 03/31/2009 |
| D589033 | Microphone | 03/24/2009 |
| 7439706 | Battery determination system for battery-powered devices This system provides a method for determining whether ordinary battery cells, a battery pack, and/or a charger unit are attached to a portable electronic device. The system provides a center contact in a battery shaft that contacts a battery pack or a point on an in... | 10/21/2008 |
| 7400914 | Wireless headphones with connector socket Wireless headphones operated by a storage battery and having a connector socket for the insertion of a charge plug of an electric connection into a power pack. The headphones further have at least one miniature loudspeaker, audio electronics, a reception part, and c... | 07/15/2008 |
| 7356151 | Microphone system A system remotely controls a microphone through a remote control unit. The remote control unit includes a frequency modulator that modulates a control signal. A cable conductor that is used to provide phantom power also conveys a frequency-modulated control signal. ... | 04/08/2008 |
| 7289638 | Electroacoustic microphone An electroacoustic capsule or electroacoustic transducer for an electroacoustic device has electrostrictive or magnetostrictive elements connected to a controllable power supply. Dimensional changes of the electrostrictive or magnetostrictive elements cause changes ... | 10/30/2007 |
| 7245738 | Electroacoustic transducer with small dimensions An electroacoustic transducer of small dimensions has a cup-shaped component made of a metallizable plastic material embedded in a housing component having a housing shape and being of a non-metallizable plastic material. The cup-shaped component has an inner surfac... | 07/17/2007 |
| 7172052 | Headphone A headphone has a headband and two earpieces each connected to the headband so as to be pivotable about at least two pivot axes. The two pivot axes intersect one another at a point of intersection that is positioned on or near a central axis of the earpiece, respect... | 02/06/2007 |
| 7151840 | Magnet system of a sound transducer A miniaturized electro-dynamic sound transducer has a housing made of deep drawn sheet metal. A magnet system with a magnet is arranged in the housing. A diaphragm provided with a coil is arranged in the housing, and wires extend from the coil to contacts. The housi... | 12/19/2006 |
| 7072483 | Headphone A headphone has a headband and two earpieces each connected to the headband so as to be pivotable relative thereto. When assuming a Cartesian coordinate system having a Z plane that is a symmetry plane of the headphone, having a Y plane that is positioned perpendicu... | 07/04/2006 |
| 7013017 | Microphone capsule support A microphone capsule support in which the microphone capsule is mounted elastically in a microphone housing using two annular diaphragms. The capsule is connected through the annular diaphragms to a bearing bushing and a cover is connected to the bearing bushing at ... | 03/14/2006 |
| D516546 | Microphone | 03/07/2006 |
| D508904 | Portable transmitter for radio headphones | 08/30/2005 |
| D504678 | Microphone | 05/03/2005 |
| 6885751 | Pressure-gradient microphone capsule An electrostatic pressure-gradient microphone capsule to be mounted essentially flush in or behind especially flat mounting surfaces includes a capsule housing with two sound inlet openings which may be divided, a diaphragm tightly mounted on a diaphragm ring, an el... | 04/26/2005 |
| 6845167 | Contacting arrangement for an electroacoustic microphone transducer An electroacoustic microphone transducer operating electrostatically has a microphone capsule, a flexprint, and a high-resistance pre-amplifier mounted on the flexprint and arranged in the microphone capsule. A post amplifier is arranged on a printed board. The flex... | 01/18/2005 |
| D498232 | Microphone | 11/09/2004 |
| 6792123 | Electroacoustic transducer An electrostatically operating electroacoustic transducer, operating as a sound receiver and configured to be mounted in a microphone capsule, has an electrode and a diaphragm connected to one another at a spacing from one another by a spacer ring, wherein on the el... | 09/14/2004 |
| 6789311 | Method of manufacturing a lacquer coated wire A method of manufacturing a wire includes pressing a lacquer-coated wire having a round cross-section into a wire having a long cross-sectional axis and a short cross-sectional axis, wherein the ratio of the axes is at most 3:1. ... | 09/14/2004 |
| 6668066 | Electroacoustic transducer with small dimensions An electroacoustic transducer of small dimensions has a cup-shaped component made of a metallizable plastic material embedded in a housing component having a housing shape and being of a non-metallizable plastic material. The cup-shaped component has an i... | 12/23/2003 |
| 6639991 | Electroacoustic transducer An electroacoustic transducer, functioning as an acoustic pick-up or as a sound generator, has a housing having a bottom and a wall portion. A diaphragm is connected to the housing opposite the bottom and encloses a diaphragm volume. An electromagnetic sy... | 10/28/2003 |
| 6622820 | Pop shield for microphone A pop shield for a microphone, the microphone having a housing and an electroacoustic transducer arranged in the housing and having a main voice input direction in an axial direction of the housing, is in the form of a cover of a first open-pore foam. The... | 09/23/2003 |
| 6619969 | Plug A plug, particularly for connecting a musical instrument, a microphone, or the like, to an amplifier, a recording device, or the like, the plug includes a central rod-shaped conductor, a mushroom-shaped part at an end of the rod-shaped conductor, a sleeve... | 09/16/2003 |
| 6587570 | Electroacoustic transducer An electroacoustic transducer operating in accordance with the electrodynamic principle include a diaphragm which has in the region of the coil an annular protrusion which is integrally connected to the diaphragm, wherein the coil is attached, preferably ... | 07/01/2003 |
| 6510231 | Electroacoustic transducer An electroacoustic transducer based on the capacitor principle includes an essentially rigid electrode and a flexible electrode constructed as a diaphragm. In the central areas of the electrodes the distance between the diaphragm and the rigid electrode i... | 01/21/2003 |
| 6351543 | Micro-microphone A micro-microphone, for attachment to the clothing or directly to the body of a user, has a housing with a housing mantle, an end plate connected to a first end of the housing mantle, and a bottom plate connected to the second end of the housing mantle. T... | 02/26/2002 |
