| Patent Number |
Title Of Patent |
Date Issued |
| D451089 |
Sliding boom headset |
November 27, 2001 |
|
| 7471798 |
Microphone array having a second order directional pattern |
December 30, 2008 |
| A directional microphone system is disclosed, which comprises circuitry for low pass filtering a first order signal, and circuitry for high pass filtering a second order signal. The system further comprises circuitry for summing the low pass filtered first order signal and the high pass |
| 7443997 |
Armature for a receiver |
October 28, 2008 |
| An armature for a receiver comprising a first and a second leg portion each having a thickness and a width and connected to each other, and a connection portion in communication with the first and second leg portions. The connection portion has a width greater than the width of the f |
| 7439616 |
Miniature silicon condenser microphone |
October 21, 2008 |
| A silicon condenser microphone package includes a transducer unit, a substrate, and a cover. The substrate includes an upper surface transducer unit is attached to the upper surface of the substrate and overlaps at least a portion of the recess wherein a back volume of the transducer |
| 7415125 |
Apparatus and method for creating acoustic energy in a receiver assembly with improved diaphragm |
August 19, 2008 |
| A receiver assembly includes a first diaphragm assembly having a diaphragm, and a second diaphragm assembly having a diaphragm. A linkage assembly is coupled to an armature of the receiver. The linkage assembly is also coupled to the first diaphragm assembly and to the second diaphra |
| 7412763 |
Method of making an acoustic assembly for a transducer |
August 19, 2008 |
| A method of making an acoustic assembly for use in a transducer includes forming a multi-layer assembly. The multi-layer assembly includes a first layer member and a second layer member. Each member includes a center portion, an edge portion and an aperture separating the center portion |
| 7382048 |
Acoustic transducer module |
June 3, 2008 |
| A module (100, 200, 300, 400, 500, 600, 900) may be electrically connected to a PCB (18, 918) residing in a device (14) or may be joined to the device (14) to form a portion of the housing (16, 916) of the device (14). The module may include a housing (102, 202, 302, 402, 502, 602) h |
| 7381589 |
Silicon condenser microphone and manufacturing method |
June 3, 2008 |
| A silicon condenser microphone package is disclosed. The silicon condenser microphone package comprises a transducer unit substrate, and a cover. The substrate includes an upper surface having a recess formed therein. The transducer unit is attached to the upper surface of the substrate |
| 7366317 |
Apparatus for creating motion amplification in a transducer with improved linkage structure |
April 29, 2008 |
| Various linkage assemblies are shown and described for connecting a first movable member to a second movable member of a transducer. The linkage assemblies provide for motion amplification or reduction and, when used for sound generating purposes such as hearing aids or speakers, three |
| 7362878 |
Magnetic assembly for a transducer |
April 22, 2008 |
| A transducer suitable for use as a microphone or receiver in a hearing aid has a housing and a diaphragm disposed within the housing. A motor assembly is also disposed within the housing and operatively coupled to the diaphragm. The motor assembly includes a magnet assembly having a |
| 7352876 |
Method and apparatus for substantially improving power supply rejection performance in a miniatu |
April 1, 2008 |
| A hybrid circuit (300) for use in a miniature microphone assembly (100) reduces power supply noise on the audio signal input (214) of an impedance buffer amplifier (200) using one or both of shielding conductors 422, 424 to reduce parasitic capacitance between signal (418) and power |
| 7336797 |
Apparatus and method for generating acoustic energy in a receiver assembly |
February 26, 2008 |
| A receiver assembly includes a housing having a fixed housing portion and a shiftable housing portion cooperating to define a hollow cavity. A flexible membrane secured between the fixed housing portion and the shiftable housing portion and adapted to allow relative motion between th |
| 7317997 |
System and method for facilitating listening |
January 8, 2008 |
| A system and method for assisting listening wherein an integrated circuit selects one or more audio sources from among a plurality audio sources to be presented to a signal processing circuit. Selection of the audio source can be automatically executed in response to detection of an |
| 7302748 |
Linkage assembly for an acoustic transducer |
December 4, 2007 |
| A linkage assembly (140) is used for mechanically coupling an armature (124) and a diaphragm (118) of a balanced receiver (100), the linkage assembly (140) formed from a first linkage member (822) displaced from a strip of stock material (800) relative to the plane of the stock material |
| 7297567 |
Method for singulating a released microelectromechanical system wafer |
November 20, 2007 |
| A plurality of MEMS structures is formed on a wafer. The wafer is mounted on a dicing frame assembly having a dicing frame and a dicing tape attached to the dicing frame. A protective layer is applied to cover the entire surface of the wafer or may be limited to the portion of the su |
| 7260230 |
High performance microphone and manufacturing method thereof |
August 21, 2007 |
| A microphone (100) and method of manufacture thereof is disclosed. The microphone (100) includes a housing (108), a diaphragm assembly (120), a spacer (134), a backplate assembly (140), a body assembly (150), and a printed circuit board (164) disposed within the housing (100). The di |
| 7242089 |
Miniature silicon condenser microphone |
July 10, 2007 |
| A silicon condenser microphone package includes a transducer unit, a substrate, and a cover. The substrate includes an upper surface transducer unit is attached to the upper surface of the substrate and overlaps at least a portion of the recess wherein a back volume of the transducer |
| 7236609 |
Electro-acoustic transducer with resistance to shock-waves |
June 26, 2007 |
| A transducer comprising a pair of spaced magnets at least partially forming a tunnel having a central axis. A coil having a first and a second side wall and an upper and a lower wall at least partially forms the tunnel. A reed having a central portion extends through the tunnel. The |
| 7221766 |
Microphone input buffer biasing circuit |
May 22, 2007 |
| An input biasing circuit for a microphone is disclosed. The circuit includes an input and an output. An input transistor is connected between the input and the output and to a biasing circuit. The biasing circuit DC biases the gate terminal of the input transistor. A resistor operably |
| 7203334 |
Apparatus for creating acoustic energy in a balanced receiver assembly and manufacturing method |
April 10, 2007 |
| A paddle (142) of a diaphragm (118) of a receiver (100) is manufactured using one or more layers of a material selected for their inertial mass and rigidity. The paddle may have a layered structure with stiff outer layers such as aluminum and a less dense inner layer, such as thermop |
| 7184563 |
Electret condenser microphone |
February 27, 2007 |
| A condenser microphone having a housing, a diaphragm assembly and backplate located within the housing. A spacer isolates the diaphragm assembly from the housing and spaces the diaphragm assembly from the backplate. The spacer has a first portion disposed between the backplate and th |
| 7166910 |
Miniature silicon condenser microphone |
January 23, 2007 |
| A silicon condenser microphone package is disclosed. The silicon condenser microphone package comprises a transducer unit, a substrate, and a cover. The substrate includes an upper surface having a recess formed therein. The transducer unit is attached to the upper surface of the substra |
| 7164776 |
Vibration balanced receiver |
January 16, 2007 |
| A balanced receiver providing significantly reduced vibration is disclosed. The balanced receiver comprises a closed loop operably attached between an armature and a diaphragm. The effective moving mass of the diaphragm is designed to match the effective moving mass of the armature. |
| 7162381 |
System and method for facilitating listening |
January 9, 2007 |
| A system and method for assisting listening wherein an integrated circuit selects one or more audio sources from among a plurality audio sources to be presented to a signal processing circuit. Selection of the audio source can be automatically executed in response to detection of an |
| 7136500 |
Electret condenser microphone |
November 14, 2006 |
| An electret condenser microphone includes a housing, a diaphragm disposed within the housing, first and second sound inlet ports and an acoustic resistive material disposed within the housing and in the acoustic path between the second inlet port and the diaphragm. The acoustic resistive |
| 7136497 |
Acoustical switch for a directional microphone |
November 14, 2006 |
| An acoustical switch is provided for a directional microphone of a hearing aid device. The hearing aid device includes a faceplate having a switch aperture, a front port, and a rear port. The microphone includes a front inlet in communication with the front port within the face plate and |
| 7132307 |
High performance silicon condenser microphone with perforated single crystal silicon backplate |
November 7, 2006 |
| A silicon condenser microphone is described. The silicon condenser microphone of the present invention comprises a perforated backplate comprising a portion of a single crystal silicon substrate, a support structure formed on the single crystal silicon substrate, and a floating silic |
| 7113604 |
Apparatus and method for matching the response of microphones in magnitude and phase |
September 26, 2006 |
| An apparatus is provided for matching the response of a pair of microphones. The two microphones provide a first and second output, respectively, in response to an audible input. The microphone outputs are subtract from each other to produce a gain control output for operably control |
| 7103196 |
Method for reducing distortion in a receiver |
September 5, 2006 |
| A receiver, such as for use in a hearing aid, is disclosed. The receiver comprises a housing and a diaphragm assembly disposed within the housing. The diaphragm assembly acoustically divides the housing into a front volume and a back volume. The diaphragm assembly comprises a paddle |
| 7092538 |
Switched microphone buffer |
August 15, 2006 |
| A method and apparatus for substantially reducing and virtually eliminating direct current flow through the input transistor(s) of an input buffer circuit for an electret microphone is disclosed. An input transistor is provided and operably connected to an input and an output of the |
| 7050602 |
Low capacitance receiver coil |
May 23, 2006 |
| The disclosure relates to electroacoustic receivers of the type which incorporate a reed armature. Thus, a receiver comprises a coil, magnets, pole pieces and a reed armature which passes through a central tunnel defined by the coil. A central portion of the reed lies within the tunn |
| 7023066 |
Silicon microphone |
April 4, 2006 |
| A solid-state transducer is disclosed. The transducer comprises a semi-conductor substrate forming a support structure and having an opening. A thin-film structure forming a diaphragm responsive to fluid-transmitted acoustic pressure is disposed over the opening. The transducer furth |
| 6987859 |
Raised microstructure of silicon based device |
January 17, 2006 |
| A raised microstructure for use in a silicon based device, such as a microphone, is disclosed. The raised microstructure comprises a generally planar film having a ribbed sidewall supporting the film. |
| 6972386 |
Digital pulse generator and manufacturing method thereof |
December 6, 2005 |
| A digital pulse generator including a circular housing having a cover and a base. The base including at least one contact terminal secured therein. The digital pulse generator further including an encoder disc secured within the cover and rotatable relative to the base. The encoder inclu |
| 6960816 |
System and method for sensing a magnetic field |
November 1, 2005 |
| A magnetic field sensor includes a transistor device having a base region, an emitter region, and a collector region. A barrier region disposed between the emitter region and the collector region to hamper charge carriers injected into the base region from the emitter region from rea |
| 6861604 |
Push button switch |
March 1, 2005 |
| A push button switch is provided having a switch housing having at least two contacts wherein at least one of the contacts has an engagement surface. The switch includes a switch actuator having an actuation surface. The actuator is in communication with the housing and is adapted to |
| 6847090 |
Silicon capacitive microphone |
January 25, 2005 |
| The present invention is directed to a process for the manufacture of a plurality of integrated capacitive transducers. The process comprises the steps of supplying a first substrate of a semiconductor material having first and second faces, supplying a second substrate of a semiconducto |
| 6801632 |
Microphone assembly for vehicular installation |
October 5, 2004 |
| A microphone assembly for installation on a surface in a cabin of a vehicle to electrically couple the microphone with a vehicular communication system is disclosed. The assembly comprises a microphone having an outer surface and a plurality of microphone contacts fixedly secured to the |
| 6781231 |
Microelectromechanical system package with environmental and interference shield |
August 24, 2004 |
| A microelectromechanical system package has a microelectromechanical system microphone, a substrate, and a cover. The substrate has a surface for supporting the microelectromechanical microphone. The cover includes a conductive layer having a center portion bounded by a peripheral edge |
| 6751326 |
Vibration-dampening receiver assembly |
June 15, 2004 |
| A receiver assembly for a hearing aid device, the assembly comprising a case having an inner cavity, one or more mounts disposed within the inner cavity of the case, and a receiver disposed within the inner cavity of the case and connected to the mounts such that the receiver is suspende |
| 6704427 |
Acoustic transducer with improved acoustic damper |
March 9, 2004 |
| An acoustic damper for covering a housing inlet of a transducer is disclosed. The damper includes a mesh panel and a non-mesh periphery. The non-mesh periphery of the damper is adhesively attached to the housing of the transducer wherein the mesh panel covers the inlet. The non-mesh |
| 6684484 |
Method for manufacturing acoustical transducer with reduced parasitic capacitance |
February 3, 2004 |
| A method for manufacturing a motor assembly for an acoustic transducer is provided. The motor assembly includes a base member, a support member, a diaphragm and a backplate. The base member has a surface and a protrusion extending a distance from the surface. The support member has an op |
| 6654473 |
Condenser microphone |
November 25, 2003 |
| A condenser microphone, and method of construction, is disclosed. The microphone comprises a cup-shaped housing having a base surface and an upstanding peripheral wall. The wall terminates at a distal edge defining an opening. The microphone further comprises a diaphragm and ring assembl |
| 6654468 |
Apparatus and method for matching the response of microphones in magnitude and phase |
November 25, 2003 |
| An apparatus is provided for matching the response of a pair of microphones. The two microphones provide a first and second output, respectively, in response to an audible input. The microphone outputs are subtract from each other to produce a gain control output for operably control |
| 6552469 |
Solid state transducer for converting between an electrical signal and sound |
April 22, 2003 |
| A solid state transducer is disclosed. The transducer comprises a micromachined electrostatic actuator formed of silicon, a support brace disposed about the actuator, and a membrane coupled to the support brace. The actuator is operatively coupled to the membrane. The transducer may be |
| 6535460 |
Miniature broadband acoustic transducer |
March 18, 2003 |
| An acoustic transducer is disclosed including: a fixed perforated member; a freely movable diaphragm spaced from the perforated member; a support ring in the perforated member maintaining the proper spacing between the diaphragm and the perforated member near the perimeter; means of |
| 6532293 |
Acoustical transducer with reduced parasitic capacitance |
March 11, 2003 |
| An acoustical transducer including a case and a support member, diaphragm, and backplate located within the case. The diaphragm is connected to the support member and is capable of vibrating. The backplate is mounted to the support member and is spaced a distance from the diaphragm to pr |
| 6377678 |
Telephone handset emulator |
April 23, 2002 |
| An interface device is provided for (1) automatically diagnosing the type and terminal connections of the earphone and microphone transducers used in any handset or headset and (2) automatically connecting any transducer set provided as a replacement handset or headset to emulate the ori |
