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Electrical Audio Signal Processing Systems And Devices > Electro-acoustic Audio Transducer

Electro-acoustic Audio Transducer

Electro-acoustic Audio Transducer patent applications listed include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.

11/20/14 - 20140341399 - Method and apparatus for controlling portable audio devices
Embodiments of the disclosure may provide an apparatus and method of controlling and altering the acoustic output of audio devices that are used in conjunction with a computing device. In some embodiments, the apparatus and methods include a wireless speaker communication method and computing device software application that are configured...

11/20/14 - 20140341400 - Impedance matching circuit for driving a speaker system
An impedance matched resonant circuit uses inductors coupling an audio source and a speaker array in order to reduce feedback reflection induced by an audio signal traveling from the audio source to the array of speakers. An RC circuit could also be coupled to the positive and negative terminals of...

11/13/14 - 20140334648 - Multifunction light controller
An apparatus and method allow end users to interactively create complex lighting patterns by remote control. Applications include decorative lighting, landscape lighting, signage, or advertising platforms. A lighting control system can be equipped with sensors that can receive remote control signals from a variety of different sources, and route the...

09/04/14 - 20140247955 - Folded electrostatic speaker
The invention is directed to a folded electrostatic speaker. An exemplary speaker comprises: a first membrane; a first electrode; a second membrane, at least a portion of the first membrane being connected to at least a portion of the second membrane; a second electrode; and a first opening defined between...

06/05/14 - 20140153748 - Electronic device
An electronic device suitable for connecting with an expansion assembly is provided. The electronic device includes a main body and an expansion module. The expansion module is pivoted to the main body and suitable for rotating relative to the main body between an operating position and an accommodating position. When...

05/01/14 - 20140119575 - Worksite audio device with wireless interface
Systems and methods including a wireless device in communication with, controlling, and providing streaming media to a worksite audio device. The worksite audio device, such as a radio, includes a rugged structure enabling its use on construction sites. The worksite audio device is powerable via a power tool battery pack...

02/13/14 - 20140044286 - Dynamic speaker selection for mobile computing devices
A method is disclosed for optimizing audio performance of a portable electronic device having multiple audio ports. The method can include detecting an orientation of the mobile device. Therefore, the portable electronic device includes a sensor for determining orientation of the portable electronic device; and one or more sensors placed...

12/05/13 - 20130322659 - 3.5mm audio plug with built-in lighting source
The invention relates to a 3.5 mm audio plug with built-in light source, particularly to a light-emitting element arranged in a hollow tube and two conductive portions and several insulating portions arranged on a predetermined position of a surface of the audio plug for acquiring power and supplying the power...

10/03/13 - 20130259270 - Personalized display
In one embodiment, a kit for making a personalized display includes a blank foldable to form a cavity according to score lines to form a display with a cavity, a print medium to receive a user selected-image and to adhere to the blank, and a bending wave generation unit attachable...

08/15/13 - 20130208924 - Loudspeaker with reversible sound port
A speaker is provided with multiple sound ports and a port plug. The sound port plug is used to close one of the sound ports while leaving the other sound port open to transmit sound. The speaker may have a first sound port located on the front of the speaker...

08/01/13 - 20130195290 - Graphene-drum pump and engine systems
The present invention relates to pump systems and engine systems having graphene drums. In embodiments of the invention, the graphene drum can be utilized in the main chambers and/or valves of the pumps and engines....

07/11/13 - 20130177178 - Musical advertising keyring
MUSICAL ADVERTISING KEYRING, that with the hermetic carcass (2) that hosts in its interior an electronic mechanism form at least by battery (4), programmable microchip (5), speaker (6) and sensors, buttons or activation switches (7). Elements that are connected in a way, that when activated reproduce a melody or melodies...

02/21/13 - 20130044902 - Transducers employing bowed lamina
A new type of sound transducer, with high output capability and compact size employs a motor in combination with a displacement amplification system using curved lamina. The motor may be electrostatic, such as piezoelectric, or electrodynamic, such as magnetostrictive, or balanced armature. Newer forms of driver materials such as PMN-PT...

12/20/12 - 20120321107 - Speaker assembly with air retarding cushion
An exemplary speaker assembly includes a housing, a loudspeaker, a sound-guiding channel and a cushion with a plurality of meshes. The housing has a receiving chamber and an acoustic chamber. The loudspeaker is accommodated in the receiving chamber. The sound-guiding channel is formed in the acoustic chamber. The sound-guiding channel...

12/20/12 - 20120321108 - Electrode connection structure of speaker unit
An electrode connection structure of a speaker unit is provided. The speaker unit includes at least one electrode layer, which is made of a conductive material, or made of a non-conductive material with a conductive layer formed on a surface thereof. The electrode connection structure includes a conductive electrode and...

12/06/12 - 20120308053 - Plate, transducer and methods for making and operating a transducer
A plate, a transducer, a method for making a transducer, and a method for operating a transducer are disclosed. An embodiment comprises a plate comprising a first material layer comprising a first stress, a second material layer arranged beneath the first material layer, the second material layer comprising a second...

11/22/12 - 20120294463 - Control of audio output state based on wireless charging
According to the present disclosure, there is provided a wireless power receiver configured to provide a continuous phone call environment or content reproduction environment while at the same time conveniently performing wireless charging during the phone call or content reproduction by controlling to activate the operation of an audio output...

09/13/12 - 20120230521 - Inductively chargeable audio devices
An inductively enabled audio speaker is disclosed configured to receive power inductively from an inductive power outlet. The audio speaker device has a voice coil which, as well as being able to produce an audible output, is further configured to function as a secondary inductor to inductively couple with a...

07/05/12 - 20120170776 - Portable electronic device having universal earphone jack
A portable electronic device includes an earphone jack for receiving an earphone plug, a switch unit and a signal processing unit. The switch unit is connected to the earphone jack and is switchable between a first state and a second state. The signal processing unit is connected to the earphone...

05/31/12 - 20120134517 - Portable information processing terminal
A portable information processing terminal is provided which can display an application execution-enabled time period. A download section 122 stores, in an application storage section 103, an application obtained from an outside. An application management table 500 has registered therein a power consumption, per unit time, for the application stored...

04/19/12 - 20120093345 - Acoustic transducer including airfoil for generating sound
Systems, apparatus, devices, and methods for converting electrical signals into sound using an acoustic transducer. The inventive acoustic transducer utilizes the motion of an airfoil shaped element to generate a sound wave, with the airfoil element being driven in response to an electrical signal input to a suitable driving element....

03/01/12 - 20120051563 - System for operating a device for producing an audible alarm
A backup alarm for producing an audible warning signal which warbles or beeps, at selected audible output power (Db) levels includes a computer which drives a speaker by switching drive voltage to the speaker with above audible, high frequency pulses in packets repetitive at audible frequency. The high frequency pulses...

02/09/12 - 20120033835 - System and method for modifying an audio signal
There is provided a method and apparatus for modifying an audio signal. An exemplary method comprises providing an audio signal and analyzing the characteristics of the provided audio signal relative to one or more predetermined desired audio characteristics. The exemplary method also comprises applying to the provided audio signal a...

02/02/12 - 20120027234 - Reduced footprint microphone system with spacer member having through-hole
A microphone system has a chip system coupled to a base. Among other things, the chip system includes a microphone chip and a circuit chip, in a stacked relationship, configured to electrically communicate. The microphone chip has a diaphragm configured to move upon receipt of an incident audio signal, while...

01/26/12 - 20120020500 - Printed circuit board
A printed circuit board includes a first signal layer, a first ground layer, a second signal layer, a power layer, a second ground layer, and a third signal layer. The first signal layer includes an analog audio input/output (I/O) port and an audio chip. The audio chip includes a main...

01/12/12 - 20120008804 - Drive pin forming method and assembly for a transducer
A transducer and method of forming a transducer is disclosed. The method comprises locating a feed wire for forming a drive pin on a reed surface, welding a first end of the feed wire to the reed, cutting the feed wire to form a drive pin, and securing the drive...

12/22/11 - 20110311077 - Personalizable alarm siren
This device enables the user to personalize the sound that comes out of his/her siren, since this invention is an improvement over conventional sirens in that it has a 3.5 mm female jack for an audio input, a male connector for a pushbutton, a female connector joined to the pushbutton...

12/22/11 - 20110311078 - Microscale implementation of a bio-inspired acoustic localization device
An apparatus and method for creating a MEMS directional sensor system capable of determining direction from at least two microphones to a sound source over a wide range of frequencies is disclosed. By utilizing a stiff beam stand-off architecture that relies on a unique manufacturing technique in a MEMS device,...

08/18/11 - 20110200211 - Acoustics transmission fidelity augmentation interface for inertial type audio transducers
An acoustical transmission interface comprising a plate comprising a first portion having a first thickness and a second portion having a second thickness wherein the first thickness is thinner than the second thickness; an inertial type audio transducer; and means to affix the audio transducer and the first portion of...

08/04/11 - 20110188677 - Using an audio cable as an inductive charging coil
The disclosed embodiments relate to a technique for inductively charging an electronic device. This technique involves winding an audio cable for the electronic device around a charging mechanism multiple times so that one or more conductors in the audio cable form an inductive receiving coil. Next, a magnetic field is...

07/28/11 - 20110182446 - Controlled overlap driver circuit
The present invention relates to a driver circuit wherein upper and lower legs of a first driver comprise first and second sets of parellelly coupled semiconductor switches, respectively. A control circuit is configured to generate respective control signals for the first and second sets of parellelly coupled semiconductor switches to...

06/09/11 - 20110135119 - Automated customization of loudspeakers
In general, in some aspects, a loudspeaker includes a horn including a first end panel, a second end panel, a first side panel, and a second side panel. Edges of at least the first and second side panels define a diffraction slot opening. A plurality of manifold components each has...

05/05/11 - 20110103620 - Apparatus and method for generating filter characteristics
An apparatus for generating filter characteristics for filters connectible to at least three loudspeakers at defined locations with respect to a sound reproduction zone includes an impulse response reverser for time-reversing impulse responses associated to the loudspeakers to obtain time-reversed impulse responses. The apparatus furthermore includes an impulse response modifier...

11/11/10 - 20100284552 - Mounting components in electronic devices
An electronic device comprises electronic circuitry and a moulded plastic covering (5). In order to prevent ingress of water and dust, a hermetic seal is provided between the covering (5) and components that are accessible through the covering (5), such as a socket (7) or display, or components such as...

11/04/10 - 20100278361 - Configurations and methods for broadband planar magnetic induction transducers
Contemplated planar magnetic induction transducers comprise a driver portion that provides a static magnetic field and a dynamic magnetic field to an electrically conductive sound producing membrane to thereby induce a current in the membrane that operates as a voice coil. Most typically, the dynamic magnetic field is produced by...

10/21/10 - 20100266148 - 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 transducer includes a displaceable membrane with a deformable corner. The deformable corner may extend the...

07/29/10 - 20100189287 - Bus circuit
Clock control is handed over in a bus circuit from a first circuit (14) to a second circuit (12). A clock conductor (10a) is driven to a predetermined voltage level with the driver circuit of the first circuit after a last clock period following the start of execution of the...

07/22/10 - 20100183171 - Structure of speaker
An improved structure of a speaker comprises a cone frame, a surround and a diaphragm, wherein a circumference of the diaphragm is sealed to an edge of an opening of the cone frame. A container portion is disposed on an inner side of the opening of the cone frame. The...

07/22/10 - 20100183172 - Method for producing a signal which is audible by an individual
Audible signals (m2) which are transmitted via an uncontrolled transmission path (11) to an individual's ear wearing the control signal processing path (l) of a hearing device are compensated by audible signals (m3) which are produced by an additional controlled signal processing path (20). Signal processing parts are commonly exploited...

07/01/10 - 20100166230 - Flat speaker structure and device
A solar flat speaker structure including a flat speaker and a solar cell is provided. The flat speaker includes a chamber substrate, a diaphragm and an upper electrode; the solar cell includes a substrate, and the flat speaker is disposed on a surface of the substrate of the solar cell,...

07/01/10 - 20100166231 - Thermoacoustic device
A thermoacoustic device includes a substrate, at least one first electrode, at least one second electrode and a sound wave generator. The at least one first electrode and the at least one second electrode are disposed on the substrate. The sound wave generator is contacting with the at least one...

03/25/10 - 20100074458 - Structure of mems electroacoustic transducer and fabricating method thereof
A structure of a micro-electro-mechanical systems (MEMS) electroacoustic transducer includes a substrate, a diaphragm, a silicon material layer, and a conductive pattern. The substrate includes an MEMS device region. The diaphragm has openings, and is disposed in the MEMS device region. A first cavity is formed between the diaphragm and...

02/18/10 - 20100040246 - Compound membrane, method of manufacturing the same, and acoustic device
A compound membrane (100) for an acoustic device (200), the compound membrane (100) comprising a first layer (101) and a second layer (102), wherein a value of Young's modulus of the second layer (102) does not vary more than essentially 30% in a temperature range between essentially −20° C. and...

02/11/10 - 20100034402 - Electrode connection structure of speaker unit
An electrode connection structure of a speaker unit is provided. The speaker unit includes at least one electrode layer, which is made of a conductive material, or made of a non-conductive material with a conductive layer formed on a surface thereof. The electrode connection structure includes a conductive electrode and...

02/04/10 - 20100027814 - Speaker devices
A speaker device may include a substrate, a membrane above the substrate, and an electrode above the membrane, a plurality of first supporting members, and a plurality of second supporting members. The second chamber is enclosed between the membrane and the substrate, and the first chamber is enclosed between the...

01/28/10 - 20100020989 - Method for operating a hearing device and a hearing device
A method to operate a hearing device and a hearing device are disclosed comprising a plurality of source units (S1, . . . , Sn). The method comprises the steps of monitoring activities of the source units (S1, . . . , Sn), selecting input signals of active source units...

07/23/09 - 20090185698 - Structure of an andio device
An audio device or system includes a housing which accommodates a circuit board having a micro control unit located within the housing, at least a speaker, and at least an optical trace detecting module coupled to the micro control unit. The optical trace detecting module at least has a light...

04/16/09 - 20090097678 - Digital microphone and power supply unit for a digital microphone
Provided is a digital microphone having a power supply. In this case the power supply is configured so as to provide a P48 V phantom power....

03/05/09 - 20090060230 - Electromechanical transducer and a production method
The invention relates to an electromechanical transducer and a method for manufacturing the transducer. The transducer includes a membrane (3), two electrodes (1, 2), the electric field between which can be controlled or measured, and a support structure (4, 5), on which the membrane (3) is arranged to vibrate interactively...