Electrical audio signal processing systems and devices inventions 04/07

20070092084 - Method and apparatus to generate spatial stereo sound: A method of processing a 2-channel stereo sound signal into a spatial stereo sound includes generating stereo signals of first and second channels from a first input channel signal and a second input channel signal by applying a time difference of times taken for each channel signal to arrive at... Agent: Stanzione & Kim, LLP

20070092085 - Signal processing device and sound image orientation apparatus: A signal processing device includes a filter that is set to frequency characteristics in which a dip existing in an intermediate and high frequency range is smoothed in the frequency characteristics of a virtual characteristic applying filter for applying transfer characteristics of a space transfer path to a sound signal,... Agent: Pillsbury Winthrop Shaw Pittman LLP

20070092086 - Removing time delays in signal paths: The disclosed embodiments include systems, methods, apparatuses, and computer-readable mediums for compensating one or more signals and/or one or more parameters for time delays in one or more signal processing paths.... Agent: Fish & Richardson P.C.

20070092087 - System and method allowing for safe use of a headset: A system and method allow for safe use of headphones that include a microphone when using the headphones with a cellular phone, a music device, or the like. A desired audio signal, e.g., a voice of a caller or music, is discontinued when a microphone associated with the headphones picks... Agent: Sterne, Kessler, Goldstein & Fox P.l.l.c.

20070092088 - Wireless plug-in speaker unit: A wireless speaker assembly is disclosed. The wireless speaker assembly comprises a housing and an electrical plug comprising one or more prongs, where those one or more prongs can be disposed within the housing. The wireless speaker assembly further comprises an AC adapter interconnected to the electrical plug, where that... Agent: Dale F. Regelman

20070092089 - Method, apparatus and computer program for calculating and adjusting the perceived loudness of an audio signal: One or a combination of two or more specific loudness model functions selected from a group of two or more of such functions are employed in calculating the perceptual loudness of an audio signal. The function or functions may be selected, for example, by a measure of the degree to... Agent: Gallagher & Lathrop

20070092090 - Apparatus for detecting a module: Apparatus for detecting a module comprising a detector arranged to use an alternating out of band signal to detect if a module is coupled to the apparatus.... Agent: Freescale Semiconductor, Inc. Law Department

20070092091 - Speaker driving apparatus: A speaker driving apparatus includes a speaker enclosure whose inside is tightly closed, at least two speakers that are provided to the speaker enclosure so as to have a common rear space, and a signal supplying unit that supplies a stereo left channel signal to the speaker in a first... Agent: Morrison & Foerster, LLP

20070092092 - Audio output apparatus and method: An audio output apparatus for converting an input audio signal into audio and outputting the audio includes a first oscillation enhancing panel for outputting the audio as a result of being oscillated; a second oscillation enhancing panel for outputting the audio as a result of being oscillated; a first transducer... Agent: Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20070092093 - Electromagnetically-shielded speaker systems and methods: The present invention relates to electromagnetically-shielded speaker (or microphone) systems for generating acoustic sounds (or electric signals) based upon electric signals (or acoustic sounds) supplied thereto while minimizing irradiation of undesirable electromagnetic waves. More particularly, the present invention relates to various speaker systems each of which has at least one... Agent: Youngtack Shim

20070092094 - System and method for an adaptor for interconnecting a hearing assistance device to a sound conduit: One embodiment of the present subject matter includes a hearing assistance device housing shaped to fit at least partially behind the ear, the hearing assistance device housing containing a microphone, sound processing electronics, and a speaker to deliver sound to a spout at an aperture in the hearing assistance device... Agent: Schwegman, Lundberg, Woessner & Kluth, P.A.

20070092095 - Line array electroacoustical transducing: A line array loudspeaker, including a first plurality of acoustic drivers each acoustic driver comprising an axis, the first plurality of acoustic drivers arranged so that the axes of first plurality of acoustic drivers are coplanar in a first plane and so that a straight line intersects each axis at... Agent: Fish & Richardson PC

20070092096 - Passive acoustical radiating: An audio device has passive radiators that are driven by acoustic drivers. The passive radiators are arranged so that the net mechanical vibration is minimized.... Agent: Fish & Richardson PC

20070092097 - Audio porting assembly: Both water intrusion and wind noise issues are addressed with an audio porting assembly including a single frame (102) having a speaker cavity (110) and a microphone cavity (112) formed therein. An opening (114) formed within the frame (102) between the speaker cavity (110) and the microphone cavity (112) provides... Agent: Motorola, Inc Intellectual Property Section

20070092098 - Headphones with elastic earpiece interface: An improved headphone design delivers an improved listening experience. The headphones provide comfortable and uniform earpiece pressure against the listener's ear. The headphones help eliminate environmental noise and reduce audible interference, masking, and other undesirable intrusions into the listening experience.... Agent: Brinks Hofer Gilson & Lione

20070092099 - Audio reproducing apparatus and audio reproducing method: An audio reproducing apparatus is disclosed. The audio reproducing apparatus includes a plurality of speaker units and a directivity controlling section. The radiation surfaces of the plurality of speaker units outwardly face. The directivity controlling section controls directivities of the plurality of speaker units so as to form one or... Agent: Wolf Greenfield & Sacks, PC

20070092100 - Headrest surround channel electroacoustical transducing: An audio system including a first audio source, including a surround channel signal, coupled to an electroacoustical transducer mounted in the back of a seat of, for example, an automobile, so that the surround channel is radiated from the electroacoustical transducer. In one embodiment, the electroacoustical transducer is oriented to... Agent: Fish & Richardson PC

20070092101 - Method and apparatus for controlling material vibration modes in polymer and paper high performance speaker diaphragms: A method for reducing the radiation amplitude of material vibration modes (division vibrations) from a loudspeaker transducer diaphragm mechanically vibrated for the purpose of transforming an electrical signal into an acoustic signal. The diaphragm material may consist of formed paper or plastic sheet materials or molded paper pulp. The amplitude... Agent: Dr. Mark D. Mckenzie

20070086594 - Signal processor, method of signal processing and computer program: A CPU generates the reference value (root mean squared value) of sound level and outputs it to a DSP, the DSP generates a measured value of sound level (root mean squared value), and compares thus-generated measured value of sound level (root mean squared value) with the reference value (root mean... Agent: Armstrong, Kratz, Quintos, Hanson & Brooks, LLP

20070086596 - Measuring apparatus, measuring method, and sound signal processing apparatus: A measuring apparatus that measures sound arrival delay time from a speaker to a microphone on the basis of a result obtained by collecting signals output from the speaker by means of the microphone includes: measuring means for measuring the sound arrival delay time that makes a control such that... Agent: Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20070086597 - Sound measuring apparatus and method, and audio signal processing apparatus: A sound measuring apparatus for measuring a sound-arrival delay time from a speaker to a microphone on the basis of a result obtained by outputting a test signal from the speaker and picking up the test signal using the microphone includes the following elements. A control unit performs control so... Agent: Wolf Greenfield & Sacks, PC

20070086595 - Test tone determination method and sound field correction apparatus: A test tone determination method includes picking up a test tone output from a speaker; calculating first and second distances from the speaker to first and second microphones and a distance difference between the first and second distances; determining whether or not the distance difference is smaller than or equal... Agent: Wolf Greenfield & Sacks, PC

20070086598 - Active noise control method and apparatus including feedforward and feedback controllers: An active noise control apparatus for reducing noise from a noise source includes a microphone for detecting noise produced by the noise source, and a generalized finite impulse response (FIR) filter for receiving noise signals of the detected noise from the microphone and generating control signals for reducing the noise... Agent: Greer, Burns & Crain

20070086599 - Earplug: Earplug comprising a plug member for blocking a man's ear canal, said plug member comprising at least one acoustic channel for channeling incoming acoustic energy to said man's ear. According to the invention, a detector for detecting an acoustic energy level or for detecting a control signal that is indicative... Agent: Leydig Voit & Mayer, Ltd

20070086600 - Dual ear voice communication device: A method for voice communication which includes sensing at least one channel of audio information from proximate a first external auditory canal of a user, sensing at least one channel of audio information proximate a second external auditory canal of the user, and wirelessly transmitting the at least one channel... Agent: Mckee, Voorhees & Sease, P.L.C

20070086601 - Flexible wireless air interface system: A flexible air interface is provided. The air interface may include a frame synchronization word field to delineate the start of a frame structure, an out-of-band message channel field allowing a low speed communication link between a plurality of processors attached to wireless devices, and a configurable payload field to... Agent: Stephen D. Scanlon

20070086602 - System and method for matching microphones: This invention relates to a system (10) and method for matching one or more microphones. A first and second microphone (110, 210) communicates, respectively, a first and second microphone signal to an amplitude compensating means (16) adjusting amplitude of the first microphone signal in accordance with amplitude of the second... Agent: Birch Stewart Kolasch & Birch

20070086603 - Method and apparatus for sound transduction with minimal interference from background noise and minimal local acoustic radiation: A transducer senses sounds produced by a talker or other source and measures acceleration of air. Enhancement of acceleration is accompanied by reduction of the portion of the sound energy that escapes from the regions around the transducer. The result is a high sensitivity transducer, with increased privacy for use... Agent: Steven J Weissburg

20070086604 - Constant sound level: A receiver or playback device (100) with an audio output includes an automatic volume control system (200) which has a controller (230) configured to output a control signal (235) to change levels of an input signal; and an adjustor (240) which changes levels of the input signal to form an... Agent: Philips Intellectual Property & Standards

20070086605 - Electro-acoustic transducer comprising an rfid circuit: In an electro-acoustic transducer (1), there are provided sound-generating means (38) of an annular form that surround an interior space (22), in which interior space (22) is housed an integrated circuit (31) by means of which a communication circuit (31B) of an RFID communication partner device (37) is formed.... Agent: Philips Electronics North America Corporation Intellectual Property & Standards

20070086606 - Transducer array with nonuniform asymmetric spacing and method for configuring array: A transducer array includes speaker drivers having nonuniform asymmetric spacing. The array includes at least three drivers formed along a line or arc. The first of the drivers is positioned having a first spacing from an adjacent second driver that is different from a second spacing between the second driver... Agent: Creative Labs, Inc. Legal Department

20070086607 - Toy building element comprising a number of parts: A toy building element with coupling studs (6) and/or coupling skirts (7) that are complementary therewith for being interconnected with other toy building elements provided with corresponding coupling studs and/or coupling skirts, said interconnection taking place in an axial direction of the coupling studs and/or the coupling skirts. The toy... Agent: Day Pitney LLP

20070086608 - Bone-conduction microphone and method of manufacturing the same: According to an embodiment of the present invention, a piezoelectric element composing a detecting part of a bone-conduction microphone is cantilevered by being mechanically pressed into an element mounting opening of a supporting member in a microphone case while temporarily bonded to a connecting member including a signal communication spacer,... Agent: Oliff & Berridge, PLC

20070086609 - Vehicle door structure: A vehicle door structure, comprising: a loudspeaker mounting hole provide in a door inner panel of a vehicle; a first service hole provided in the door inner panel and located in the vicinity of the loudspeaker mounting hole; a second service hole provided in the door inner panel and located... Agent: Birch Stewart Kolasch & Birch

20070086610 - Hearing aid device with an antenna: The production of a hearing aid device suitable for wireless signal transmission is simplified by providing fastening elements connected as one piece with the housing shell. The fastening elements serve for placement and fastening of an antenna or coil in the housing shell of the appertaining hearing aid device. The... Agent: Schiff Hardin, LLP Patent Department

20070086611 - Hearing aid that facilitates removal of earwax and trapping of moisture: A hearing aid (2) is provided which includes a receiver tube (14) containing waterproof ear wax mesh trap (16). The receiver tube is removably connected directly to the hearing aid receiver (12) and the tube may be cleaned or replaced by a hearing aid dispenser or audiologist during a patient... Agent: Raymond R. Moser Jr., Esq. MoserIPLaw Group

20070086612 - Cushion and acoustic system with the cushion: h

20070086613 - Multi-media loudspeaker capable of receiving and transmitting voice via the internet: A multi-media loudspeaker which includes a primary loudspeaker case connected with a transmission cable, a loudspeaker, a microphone, a headphone socket, and a volume control, a secondary loudspeaker case connected with the primary loudspeaker case via a cord, a retractable coiling cord device connected with the cord, the retractable coiling... Agent: Leong C Lei

20070086614 - Electronic apparatus with speaker: An electronic apparatus comprising a speaker section 2 for outputting sound from a sound radiating section 2a, box section 3 comprising a space capable of containing the speaker section 2, box guide section 4 for coupling an electronic apparatus body 1 with the box section 3 and for guiding movement... Agent: Connolly Bove Lodge & Hutz LLP

20070086615 - Loudspeaker including slotted waveguide for enhanced directivity and associated methods: A loudspeaker may include a baffle, a planar diaphragm transducer carried by the baffle and having a front surface for radiating acoustic energy therefrom, and a slotted waveguide adjacent the front surface of the planar diaphragm transducer. The planar diaphragm transducer may be operable to a desired high frequency, and... Agent: Allen, Dyer, Doppelt, Milbrath & Gilchrist P.A.

20070086616 - Resonant element transducer: A transducer (14) for producing a force which excites an acoustic radiator, e.g. a panel (12) to produce an acoustic output. The transducer (14) has an intended operative frequency range and comprises a resonant element which has a distribution of modes and which is modal in the operative frequency range.... Agent: Foley And Lardner LLP Suite 500

20070086617 - Cable coiling method and apparatus: passing a second (22) of the at least one end of the cable strap (21) over a second (11) of the earphones by inserting the second earphone (11) through a second slot (23) in the second end (22) for releasably attaching the second earphone (11) to the cable strap (21).... Agent: Creative Labs, Inc. Legal Department

20070086618 - Loudspeaker with field replaceable parts and method of assembly: A loudspeaker and method of assembly according to this invention provides for precise alignment between the frame and motor structure before they are connected to one another, and employs a fixture to form the moving assembly of the speaker, i.e. the voice coil, upper and lower suspensions and diaphragm, outside... Agent: Gray Robinson, P.A.

20070081674 - Method and apparatus of amplifying stereo effect: A method and apparatus of amplifying a stereo effect of a stereo sound recording apparatus, the apparatus including a first signal processing unit to amplify a separation degree of left sound and right sound through feed-forward cross-mixing of left and right channel input signals with a predetermined delay value, and... Agent: Stanzione & Kim, LLP

20070081675 - Method and apparatus for outputting an audio signal according to a dmb channel: A method and apparatus for outputting an audio signal according to a DMB channel are provided. The default volume level of a DMB signal received on each DMB channel is compared with a plurality of predetermined volume levels available to the DMB terminal. Correction values are determined according to the... Agent: Dilworth & Barrese, LLP

20070081676 - Enhanced rotary multi-pole electrical switch: Implementations provide a first option of simultaneously turning on or turning off two distinctly separate and isolated electrical circuits, such as when each of two electrical devices are powered by a different energy source. Implementations provide a second option of connecting the two separate circuits together, such as when both... Agent: Davis Wright Tremaine, LLP

20070081677 - Speaker array and microphone array: A speaker array, includes a plurality of speakers which are linearly arranged at a predetermined interval; and one-dimensional digital filters which are provided to correspond to the speakers respectively, in which predetermined filter coefficients are set previously, and which apply a filtering process to input sound data in response to... Agent: Pillsbury Winthrop Shaw Pittman LLP

20070081678 - Video camera with integrated radio: A video camera with an integral radio. The video camera records video images on a desired recording medium contemporaneously with an audio track from a selected audio source. Various audio sources including a microphone, a radio receiver, and a line-in auxiliary input are available. With multiple audio sources available, a... Agent: Knox Patents

20070081679 - Portable audio drive unit: A portable audio drive unit has a case, an audio signal output section that outputs an audio signal, and a magnetostrictive actuator that drives on the basis of the audio signal output from the audio output section. The magnetostrictive actuator includes a displacement transfer section. The displacement transfer section has... Agent: Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20070081680 - Fidelity speaker: An improved-fidelity speaker system is presented. The sound system includes a frame and a pair of matching speakers. The frame is formed to hold a first speaker and a second speaker, each having a front side, a back side, and central axis. When attached with the frame, the two speakers... Agent: Tope-mckay & Associates

20070081681 - Thin film transparent acoustic transducer: A thin film acoustic transducer is formed with an electrically actuatable substantially transparent thin film. Substantially transparent conductive thin films are supported on both sides of the electrically actuatable substantially transparent thin film. The thin film transducer may be used to sense sound, or produce sound in various embodiments. In... Agent: Schwegman, Lundberg, Woessner & Kluth, P.A.

20070081682 - Hearing aid device with digital control elements: The invention is intended to simplify the operation of a hearing aid device. Toward that end, means are present in the hearing aid device for storing the value of a parameter which can be set by the hearing aid device wearer by actuation of a control element, which parameter value... Agent: Siemens Corporation Intellectual Property Department

20070081683 - Physiologically-based signal processing system and method: A system and method for improving sound quality for subjects with impaired hearing by applying a lowpass filter and a set of mid- to high-frequency narrowband filters to a signal. A set of narrowband filters are applied to sounds so that the impaired ear is stimulated to respond in a... Agent: Bond, Schoeneck & King, PLLC

20070081684 - Hearing aid with battery door: The invention comprises a hearing aid with a casing and a battery with a battery access door in the casing. According to the invention: the door is hingedly connected to the casing to allow a pivotal motion between the battery door and the casing, a flexible locking latch having a... Agent: Dykema Gossett PLLC

20070081685 - Textured surfaces for hearing instruments: The physical fit, comfort, and appearance of a hearing instrument that resides in the ear can be improved by providing the shell of the instrument with a textured finish. A variety of textured finishes can be imparted during the fabrication process or applied after fabrication.... Agent: Siemens Corporation Intellectual Property Department

20070081686 - Hearing aid: In accordance with the present invention, a behind the ear type hearing aid device is provided that includes a one piece case that defines an opening at a first end. The hearing aid also includes a carriage that supports the electrical components of the hearing aid. The carriage, including the... Agent: Rankin, Hill, Porter & Clark LLP

20070081687 - Speaker system: A loudspeaker system includes a speaker enclosure that includes a plurality of faces which surround so as to have an internal space tightly closed, a cut-away portion that is cut away along a contour of a virtual plane figure surrounded by a line on one face of the speaker enclosure... Agent: Morrison & Foerster, LLP

20070081688 - Earphone: An earphone has a body, a connecting element and a speaker. The body has a distal end, a joint, a core, a base, an outer side, an inner side, and a connecting cylinder. The joint extends from the distal end. The base is formed in the core. The connecting cylinder... Agent: Rosenberg, Klein & Lee

20070081689 - Portable waterproof equipment: A portable waterproof equipment includes a body configured for containing articles therein, a sealing structure, a cable and a sealing device. The body has an opening configured for providing an access for the articles entering into the body. The sealing structure is configured for sealing the opening of the body.... Agent: Hamre, Schumann, Mueller & Larson, P.C.

20070081690 - Electroluminescent lighted headphones: A control module adapted to connect to an energy source and having a headphone assembly connected to a first end of the control module. The control module further connected to an input wire assembly at a second end of the control module, wherein at least one of the headphone assembly... Agent: Schwegman, Lundberg, Woessner & Kluth, P.A.

20070081691 - Speaker device for portable terminal: Provided is a speaker device for a portable terminal. The speaker device includes a speaker housing which provides a mounting space for accommodating a speaker unit and a resonating space connected to the mounting space and located around the mounting space. The speaker device solves the disadvantages of a small-size... Agent: Dilworth & Barrese, LLP

20070081692 - Speaker device: A speaker device includes a magnetic circuit, a vibration system, a frame and a terminal. The frame is formed into a frame shape, and an inner wall thereof holds the magnetic circuit. Particularly, the frame has an opening for ventilation, which makes a rear surface positioned on a side opposite... Agent: Nixon & Vanderhye, PC

20070081693 - Insert molded surround with mechanical support: A suspension member for a diaphragm, the suspension member comprising an inner portion being adapted to be attached to a substantially stiff piston part, a outer portion arranged on or integrated with a substantially stiff support member so as to mechanically stabilise the suspension member, and a flexible member connecting... Agent: Jenkens & Gilchrist, P.C.

20070076891 - Apparatus and method of canceling vocal component in an audio signal: An apparatus and method of canceling a vocal component includes a first vocal canceling unit to delay each of the left and right channel input signals for a predetermined time and to feed-forward cross mix the delayed left and right channel signals with the left and right channel input signals,... Agent: Stanzione & Kim, LLP

20070076892 - Apparatus and method to cancel crosstalk and stereo sound generation system using the same: An apparatus and method for canceling crosstalk between 2-channel speakers and two ears of a listener in a stereo sound generation system. The crosstalk canceling apparatus includes a first signal processing unit to cross-mix first and second channel signals with gain and delay-adjusted first and second channel signals, a second... Agent: Stanzione & Kim, LLP

20070076893 - Multichannel spectral mapping audio apparatus and method with dynamically varying mapping coefficients: A method and circuit for deriving a set of multichannel audio signals from a conventional monaural or stereo audio signal uses an auxiliary multichannel spectral mapping data stream. Audio can be played back in stereo and multichannel formats from a conventional stereo signal on compact discs, FM radio, or other... Agent: Fish & Richardson P.C.

20070076894 - Audio control system: To propose an audio control system in that even if it has a thin center speaker, low sounds can be felt to be heard from the center speaker. A low frequency signal in a center channel audio signal is delayed, and then the delayed signal is added to a right... Agent: Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20070076895 - Audio processing system and method for hearing protection: The present invention relates to an audio processing method for hearing protection, includes steps of: obtaining analog audio signals amplified according to a current gain value; converting the analog audio signals obtained to digital audio signals; sampling the digital audio signals thereby obtaining a plurality of amplitude values mi; calculating... Agent: North America Intellectual Property Corporation

20070076896 - Active noise-reduction control apparatus and method: Apparatus includes generator generating reference signal based on noise emitted from sound source, detector detecting level of reference signal and change in level, unit comparing change with threshold-value range and produce compared result, filter filtering reference signal, adaptive filter having variable filter coefficient, unit updating filter coefficient according to change... Agent: Charles N.j. Ruggiero Ohlandt, Greeley, Ruggiero & Perle, L.L.P.

20070076897 - Headsets and headset power management: The invention relates to an energy saving headset that comprises a power management unit operable to reduce the power consumption of the headset when a user is not present. The power management unit uses capacitive sensing to detect the presence of the user. Capacitive sensing is advantageous since it provides... Agent: David Kiewit

20070076901 - Adapting a directional microphone signal to long-lasting influences: The directional effect of a static directional microphone is to be improved. In particular shadowing effects of the head for a hearing device worn on the head of the user are to be taken into account when adjusting at the directional microphone. To this end it is proposed that—like the... Agent: Siemens Corporation Intellectual Property Department

20070076898 - Adaptive beamformer with robustness against uncorrelated noise: The relatively robust adaptive beamformer, comprises: a filtered sum beamformer (107) to process input audio signals (u1, u2, u3) from an array of respective microphones (101, 103, 105), and arranged to yield as an output a first audio signal (z) predominantly corresponding to sound from a desired audio source (160);... Agent: Philips Intellectual Property & Standards

20070076899 - Audio collecting device by audio input matrix: An audio collecting device by audio input matrix comprises: a plurality of audio input devices for inputting audio sources and generating a plurality of audio signals; a plurality of sub-processors for connecting with a plurality of audio input devices to process the audio signals and generate audio processing signals of... Agent: Anthony R. Barkume

20070076900 - Microphone calibration with an rgsc beamformer: It is intended to improve and automate the calculation of calibration filters connected downstream from the microphones of an RGSC beamformer. To this end it is proposed that an adaptive calibration filter calculation unit be used, by means of which calibration filters are calculated from the output signals of adaptive... Agent: Siemens Corporation Intellectual Property Department

20070076902 - Method and apparatus for removing or isolating voice or instruments on stereo recordings: A first embodiment of the invention provides a method and apparatus for attenuating or amplifying voice or other signals present on a stereo audio recording that uses frequency domain techniques to calculate a time- and frequency-dependent gain factor, based on the input panning and phase information in the recording, and... Agent: Glenn Patent Group

20070076903 - Mute circuit: An NchMOS transistor (1) is provided for muting of an output terminal (10) to which positive and negative output signals are outputted, and a mute switch circuit (3) is provided for controlling on/off of the transistor (1) by switching a voltage applied to the gate of the transistor (1). When... Agent: Steptoe & Johnson LLP

20070076904 - Microphone preamplifier: A microphone preamplifier, comprising a differential input (102) stage with a first and a second input terminal and an output stage with an output terminal; where the microphone preamplifier is integrated on a semiconductor substrate. A feedback circuit, with a low-pass frequency transfer function (103), is coupled between the output... Agent: Darby & Darby P.C.

20070076905 - Audio output apparatus: An audio output apparatus has a measuring circuit which measures the levels of at least two sound signals, a sound level adjusting module (a sound level adjusting circuit and a gain control circuit) which adjusts a sound level so as to equal the levels of the sound signals based on... Agent: Rossi, Kimms & Mcdowell LLP.

20070076906 - Speaker system for musical instruments: A speaker system for a musical instrument that detects the displacement of a voice coil of a speaker and provides feedback processing. The speaker system has a preamp that alters the frequency characteristics of the an electrical signal that has been input to an input terminal, and a power amplifier... Agent: Foley & Lardner

20070076907 - Sound meter for portable audio headphones: A control module, at least a portion of which is adapted to illuminate upon excitation by an energy source, wherein the control module comprises an input port adapted to receive portable audio device signals, an energy source signal, control circuitry configured to measure a first parameter from the audio input.... Agent: Schwegman, Lundberg, Woessner & Kluth, P.A.

20070076908 - Multiple channel audio encoder using difference signal: A wireless device (300) receives and captures multiple-channel audio signals and outputs the multiple-channel audio signals on at least one channel output stream (606). The wireless device (300) includes a microphone (401) for capturing a first audio channel and at least one speaker (402) for capturing additional audio channels. Each... Agent: Motorola, Inc Intellectual Property Section

20070076909 - In-situ-fitted hearing device: The hearing device is operable in a fitting mode and in a listening mode and comprises a transducer for receiving, in the fitting mode, audio test signals, and for converting the audio test signals into signals to be perceived by the user in the fitting mode. It comprises a parameter... Agent: Pearne & Gordon LLP

20070076910 - Method for operating a hearing aid device system for the binaural supply of a user: In a hearing aid device system with a hearing aid device (1, 10) which can be worn on or in the left ear of a user and a hearing aid device (1′, 10′) which can be worn on or in the right ear of the user for the binaural supply... Agent: Siemens Corporation Intellectual Property Department

20070076911 - Portable audio reproduction system: A portable system capable of receiving audio signals from one or more sources and reproducing the signals via speakers contained therein. The portable audio reproduction system can include a docking station or similar means for communicatively coupling an audio device to the portable audio reproduction system, thereby reducing desktop clutter... Agent: Greenberg Traurig, LLP

20070076912 - Audio speaker enclosures: An audio speaker enclosure includes a housing with a plurality of walls enclosing an interior and an opening in one of the walls for mounting an audio speaker. The walls are made in their entirety of a solid metal plate component comprising a planar plate having an interior surface facing... Agent: Epstein & Gerken

20070076913 - Hearing aid apparatus and method: An improved hearing aid and method that employs a combination microphone/speaker, sized to be inserted within which the opening of the ear canal such that it does not obstruct the same for more natural hearing.... Agent: Marcus G Theodore, PC

20070076914 - Speaker system with oscillation detection unit: A speaker system comprising a magnetic circuit, a cylindrical shaped voice coil unit generating oscillation in the magnetic circuit, an oscillating plate extending in a circular conical shape from a outer peripheral surface of the voice coil unit, a dust cap connecting to the oscillating plate covering an open face... Agent: Foley & Lardner

20070076915 - Plane speaker having coil plate guide device: The present invention relates to a plate type speaker with a planar diaphragm. The plate type speaker of the present invention comprises a base frame; at least one magnetic body coupled to the base frame such that opposite polarities are provided at adjacent lateral positions and are spaced apart by... Agent: Ipla P.A.