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Electrical Audio Signal Processing Systems And Devices > Circuitry Combined With Specific Type Microphone Or Loudspeaker Circuitry Combined With Specific Type Microphone Or LoudspeakerCircuitry Combined With Specific Type Microphone Or Loudspeaker patent applications listed are from June 2005 to current and include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.10/11/07 - 20070237343 - Sound enhancement A device (1) is arranged for adjusting the amplitude of an audio signal (x) such that the output of a transducer (2) coupled to the device is equivalent to the output of a reference transducer. The device comprises a first simulation unit (11) for producing a reference signal (y) in ... 09/20/07 - 20070217629 - System for automatic reception enhancement of hearing assistance devices Method and apparatus for automatic reception enhancement of hearing assistance devices. The present subject matter relates to methods and apparatus for automatic reception enhancement in hearing assistance devices. It provides a power estimation scheme that is reliable against both steady and transient input. It provides a TSM estimation scheme that ... 08/16/07 - 20070189554 - Audio speaker including impedance matching circuit An audio speaker (10) including an electrical circuit that is interconnected within the speaker circuitry within the speaker enclosure (14) to selectively alter the resistance of the speaker (10), such as from 4 ohms to 8 ohms. It therefore allows the owner to use the speaker as a replacement speaker ... 07/12/07 - 20070160233 - Loudspeaker A loudspeaker comprising a magnet unit that generates a magnetic field, and a membrane which is mounted in a frame and which is provided with an electrical conductor arranged in a pattern on the membrane, which membrane is positioned in the magnetic field in such a manner that a force ... 06/28/07 - 20070147640 - Audio accessory and method An audio accessory (100) and corresponding method for operating the audio accessory are provided. The audio accessory includes a first speaker, a second speaker, a microphone, and a multiplexer circuit for multiplexing the second speaker with the microphone. The audio accessory is suitable for use with an electronic device (200), ... 06/07/07 - 20070127742 - Output coupling capacitor free audio power amplifier dynamically configured for speakers and headphones with excellent click and pop performance First and second channel bridge amplifiers are dynamically configured to drive either speakers or headphones. The first channel bridge amplifier includes a first amplifier driving one end of a first speaker through a mechanical switch in a headphone-jack, and a second amplifier driving another end of the first speaker. The ... 06/07/07 - 20070127741 - Receiver The present invention provides a receiver for making an earphone cord of an earphone function as an earphone antenna. The receiver includes a receiver circuit for receiving a broadcast wave signal received at the earphone code of the earphone and outputting an audio signal, an earphone jack into which a ... 06/07/07 - 20070127740 - Sound reproduction in portable electronic equipment The present invention is directed towards a portable electronic equipment (10) comprising a speaker (16) and a receiver (18), wherein the receiver (18) is damped while the speaker (16) is active to provide good sound reproduction. ... 05/31/07 - 20070121968 - Ultra directional speaker system and signal processing method thereof An ultra directional speaker system and a signal processing method thereof are disclosed. In accordance with the present invention, the pre-distortion compensation may be applied to the input signal in real time and a signal to be modulated is subjected to a VSB modulation to minimize the distortion according to ... 05/31/07 - 20070121967 - Hearing aid with large diaphragm microphone element including a printed circuit board A disposable-type hearing aid uses a relatively large single diaphragm or a large single diaphragm subdivided into a plurality of smaller active diaphragm areas obtained using a grate-like back support plate with ridges which contact and divide the diaphragm into the several smaller active diaphragm areas. The diaphragm and a ... 04/26/07 - 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 ... 04/26/07 - 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. ... 04/19/07 - 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. ... 12/28/06 - 20060291672 - Condenser microphone A condenser microphone is obtained, in which the bias of a current amplifier circuit in emitter-follower connection immediately after an impedance converter automatically changes in accordance with the switching of phantom power supply voltages and the maximum output level and the maximum permissible input sound pressure level are increased at ... 12/21/06 - 20060285702 - Multi-mode driver circuit A multi-mode driver circuit includes a first channel driver, a second channel driver, and a control module. The first channel driver module is operably coupled to drive a first channel signal to a first node of an output. The second channel driver module is operably coupled to drive a second ... 11/30/06 - 20060269084 - Electronic apparatus According to one embodiment, an electronic apparatus comprises: a speaker; a sound circuit section that drives the speaker; and a power supply section which is powered by an AC source, which comprises a battery, and which can feed DC power to the sound circuit section by power of the AC ... 11/30/06 - 20060269083 - Multi-purpose speaker This invention has given birth to a multi-purpose speaker, and this type of speaker contains an external cover, loudspeaker, power supply, microphone, magnified circuit, switch and a volume adjustor. In the front of the resonance cartridge in the loudspeaker is a spotlight. The external cover is composed of a loudspeaker, ... 11/23/06 - 20060262945 - Electronic driving circuit for directing an audio signal selectively to one of two speakers A driving circuit selectively operates a hands-free loudspeaker and an earpiece speaker of a mobile terminal. The driving circuit includes a voiceband electronic circuit with a balanced output adapted for being switched between an in-phase and an opposite-phase mode, an interconnection function for connecting the earpiece speaker directly to the ... 11/09/06 - 20060251274 - Condenser microphone In a condenser microphone in which a microphone unit section is replaceable, an electromagnetic wave is prevented without fail from entering into an internal circuit through a coupled portion of the microphone unit section and a microphone case and generation of noises caused by the electromagnetic wave is prevented. The ... 10/26/06 - 20060239475 - Microphone A microphone having: a first bidirectional microphone unit formed by connecting two unidirectional microphone units, each of which has a vibrating section on a front side thereof, back to back; and a second bidirectional microphone unit formed by connecting two unidirectional microphone units, each of which has a vibrating section ... 08/10/06 - 20060177076 - Apparatus for altering poles on an accessory An accessory (100) has a housing (102) for varying a number of accessible poles (110A, 110C, 112A, 112C, 112E). The accessory includes a plurality of projections (110, 112) each having at least one pole coupled to an insulator (110B, 112B, 112D) to prevent electrical contact with another pole, a plurality ... 07/20/06 - 20060159289 - Bessel array with full amplitude signal to half amplitude position transducers A Bessel Array loudspeaker in which identical transducers are fed full amplitude signals. The half amplitude output at some Bessel positions can be achieved by angling those transducers to the side or up/down. The half amplitude transducers can be coupled to separate cabinets which can be rotated left/right with respect ... 07/20/06 - 20060159288 - Bessel dipole loudspeaker A dipole loudspeaker in which the oppositely oriented transducers each is a Bessel Array. Optionally, Improved or Super Bessel Arrays are used, and their half-amplitude end position transducers may be shared and aimed in a perpendicular—typically vertical—orientation. The Bessel Dipole is especially useful as a surround channel loudspeaker; for the ... 07/20/06 - 20060159287 - Mtm of bessels loudspeaker An MTM loudspeaker in which the Ms and/or the T is constructed as a Bessel Array. The shapes of the diaphragms, the transducer count, the Bessel type, and/or the acoustic center positioning can be adjusted to achieve desired packing factor, enclosure size, off-axis performance, and so forth. ... 07/20/06 - 20060159286 - Bessel array with non-empty null positions An e.g. 7-element Bessel Array in which the null or zero positions are occupied with sound producing means producing sound outside the Bessel functional frequency range, such as a higher frequency Bessel Array, a higher frequency MTM, or a port. ... 06/08/06 - 20060120541 - Combined microphone-loudspeaker Assembly for generating and recording sound, comprising an electromagnetic transducer (1) for transforming electrical energy into acoustical energy, wherein the assembly comprises at least one microphone (2), wherein at least part of said microphone (2) is located within said transducer (1). The invention further provides an apparatus for generating and ... 05/04/06 - 20060093162 - Voltage biased capacitor circuit for a loudspeaker A voltage biased capacitor circuit (10) for a loudspeaker (14′) includes at least two audio circuit capacitors (32A, 32B) wired in series either on one of an audio connector or between audio connectors (16A′, 16B′). A direct current voltage source (34) is wired in electrical communication with the audio circuit ... 02/16/06 - 20060034472 - Integrated audio codec with silicon audio transducer An integrated audio transducer with associated signal processing electronics is disclosed. A silicon audio transducer, such as a MEMS microphone or speaker, can be integrated with audio processing electronics in a single package. The audio processing electronics can be configured using control signals. The audio processing electronics can provide a ... 02/09/06 - 20060029238 - Device and method for driving speaker Distortion caused in the voltage of an audio signal due to a back electromotive force generated due to loads in a speaker is detected, the detected distorted voltage is eliminated from the voltage of the audio signal, and the audio signal without the distorted voltage is amplified and given to ... 11/24/05 - 20050259835 - Condenser microphone The occurrence of noise caused by external electromagnetic waves is prevented and a high voltage is prevented in a microphone case, so that the possibility of an electrical shock is eliminated. A condenser microphone, comrising a microphone case (shield case) 10 including a circuit board 11 having a ground circuit ... 10/20/05 - 20050232446 - Trickle-charged amplifier A long-term power storage device associated with an amplifier is trickle-charged by a relatively low-power source. In that amplification has a very large peak-to-average power ratio, high output levels can be obtained from a low average input power. Furthermore, since most amplification use is not constant, refractory periods exist wherein ... 10/13/05 - 20050226443 - Method for riaa correction of audio signal with use of transformer and capacitor RIAA correction of audio frequency signals is disclosed. A RIAA-correcting pre-amplifier uses a transformer having a primary winding and two or more secondary windings, with two of the secondary windings playing an essential role in RIAA-correction. Frequency correction of a signal coming from one of the secondary windings is carried ... 09/22/05 - 20050207596 - Packaged digital microphone device with auxiliary line-in function A digital microphone device outputs a digital audio signal to a digital signal processing system. The digital microphone device includes an acoustic transducer for producing an analog voltage signal representative of an acoustic signal, and an integrated circuit including an input multiplexer. The input multiplexer has a first analog input ... 09/22/05 - 20050207595 - Microphone apparatus built in computer network A microphone device into which desired sound for broadcasting can be written through a network is provided. A microphone device 1 having a microphone element 11 for supplying a sound from a loudspeaker to a broadcasting device comprises a writable and readable storing means 15 for storing sound data transferred ... 07/21/05 - 20050157892 - Cabled & wireless dual-purpose microphone A cabled and wireless dual-purpose microphone is comprised of a receiver containing a transmission baseboard, the baseboard connected to a receiving unit and to Type 1 adapter, a wireless connector containing a casing to accommodate a battery source, a primary end of the casing connected to Type 2 adapter relatively ... ### FreshPatents.com Support |