Abstract: A method for delivering an optimized acoustic signal to a targeted sound field includes determining a bright zone having a high acoustic energy sound delivery region and a dark zone having low acoustic energy sound delivery region. The system selects a finite impulse response (FIR) filter set associated with a plurality of loudspeakers, and generates, via the plurality of loudspeakers and based on the FIR filter set, an acoustic signal having a sound pressure due to the combined loudspeakers (p) at an observation point r in a sound field disposed in the bright zone. The acoustic signal is delivered such that the sound pressure due to the combined loudspeakers at the observation point is approximately equal to unity acoustic energy at the observation point when the sound pressure due to the combined loudspeakers is generated via a single loudspeaker of the plurality of loudspeakers, and the remaining loudspeakers of the plurality of loudspeakers are off.

Abstract: An accessory support assembly for a vehicle seat includes a support frame that includes an upper bracket and a lower bracket coupled to a bottom of the upper bracket. The lower bracket includes coupling features. The lower bracket defines side projections that extend from opposing sides of the support frame. A speaker assembly is coupled to the support frame. The speaker assembly includes a first speaker housing and a second speaker housing. The first and second speaker housings are coupled to the side projections of the support frame, respectively. A speaker is disposed in each of the first and second housings.

Abstract: An accessory support assembly for a vehicle seat includes a support frame that includes an upper bracket and a lower bracket coupled to a bottom of the upper bracket. The lower bracket includes coupling features. The lower bracket defines side projections that extend from opposing sides of the support frame. A speaker assembly is coupled to the support frame. The speaker assembly includes a first speaker housing and a second speaker housing. The first and second speaker housings are coupled to the side projections of the support frame, respectively. A speaker is disposed in each of the first and second housings.

Abstract: A system and method to perform signal processing using a loudspeaker output are described. The system includes an enclosure configured to define a back cavity of the loudspeaker and components to obtain a representation of the loudspeaker acoustic output at the back cavity. The system also includes a processor to process the representation to perform the signal processing.

Abstract: A method, system and apparatus for loudspeaker excursion domain processing are provided. At a device comprising: a processor, a loudspeaker comprising a voice coil, one or more devices for determining loudspeaker voltage and current as a function of time, t, and a memory storing a Bl product for the loudspeaker, loudspeaker currents I(t) and corresponding voltages V(t) are received at the processor from the one or more devices. A current-from-voltage transfer function HIV(?) is derived from the loudspeaker currents I(t) and voltages V(t), as a function of frequency, ?. A Fourier space excursion-from-voltage transfer function HXV(?) is determined, whose form is constrained by parameters HIV(?), Bl, Rvc, and Lvc, where: Rvc comprises a resistance of the voice coil; and Lvc comprises an inductance of the voice coil. Filter coefficients are determined using HXV(?), which are used in a filter applied to an input signal for the loudspeaker.

Abstract: A method, system and apparatus for loudspeaker excursion domain processing and thermal limiting are provided. At a device comprising: a processor; a loudspeaker and voice coil, device(s) for determining loudspeaker voltage and current; a volume device; and a memory storing a Bl product for the loudspeaker, a Fourier space excursion-from-voltage transfer function HXV(?) is determined. An acoustic response of the loudspeaker below a dovetail frequency, is determined, relative to a respective acoustic response at the dovetail frequency, using at least a second time derivative of the transfer function HXV(?). An equalization is determined using the acoustic response, comprising gains that, when applied to the acoustic response, will adjust the acoustic response to the respective acoustic response at the respective acoustic response at the dovetail frequency. Filter coefficients are determined corresponding to the equalization, which are used in a filter applied to a loudspeaker input signal.

Abstract: A method, system and apparatus for loudspeaker excursion domain processing and thermal limiting are provided. At a device comprising: a processor; a loudspeaker and voice coil, device(s) for determining loudspeaker voltage and current; a volume device; and a memory storing a Bl product for the loudspeaker, a Fourier space excursion-from-voltage transfer function HXV(?) is determined. An acoustic response of the loudspeaker below a dovetail frequency, is determined, relative to a respective acoustic response at the dovetail frequency, using at least a second time derivative of the transfer function HXV(?). An equalization is determined using the acoustic response, comprising gains that, when applied to the acoustic response, will adjust the acoustic response to the respective acoustic response at the respective acoustic response at the dovetail frequency. Filter coefficients are determined corresponding to the equalization, which are used in a filter applied to a loudspeaker input signal.

Abstract: A method, system and apparatus for loudspeaker excursion domain processing are provided. At a device comprising: a processor, a loudspeaker comprising a voice coil, one or more devices for determining loudspeaker voltage and current as a function of time, t, and a memory storing a Bl product for the loudspeaker, loudspeaker currents I(t) and corresponding voltages V(t) are received at the processor from the one or more devices. A current-from-voltage transfer function HIV(?) is derived from the loudspeaker currents I(t) and voltages V(t), as a function of frequency, ?. A Fourier space excursion-from-voltage transfer function HXV(?) is determined, whos e form is constrained by parameters HIV(?), Bl, Rvc, and Lvc, where: Rvc comprises a resistance of the voice coil; and Lvc comprises an inductance of the voice coil. Filter coefficients are determined using HXV(?), which are used in a filter applied to an input signal for the loudspeaker.

Abstract: A low magnetic interference battery is provided, the battery insertable into a mobile communication device, the mobile communication device comprising a radio interconnected with a microphone and a receiver. The battery comprises a battery portion enabled to provide electrical power to the radio, the battery portion emitting a magnetic field when in operation. The battery further comprises a sealing portion for sealing the battery portion therein such that the battery portion is protected from moisture, the sealing portion comprising a magnetic shield portion arranged relative to the battery portion such that magnetic flux from the battery portion is routed away from the receiver when the battery is in operation in the mobile communication device.

Abstract: Various embodiments are described herein for an electrode assembly for a stacked-cell battery. The electrode assembly comprises a first active material layer; a first current collector layer adjacent to and in electrical contact with an outer surface of the first active material layer; a tab element having an end lead portion and a second lead portion, the end lead portion being in electrical contact with at least one of the first active material layer and the first current collector layer, and the second lead portion extending away from the end lead portion and being substantially adjacent to a surface of at least one of the first active material layer and the first current collector layer and is adapted to provide an electrical connection to the electrode assembly; and an insulative layer covering an inner contact area of the second lead portion to electrically insulate this portion of the tab element.

Abstract: A system and method to perform signal processing using a loudspeaker output are described. The system includes an enclosure configured to define a back cavity of the loudspeaker and components to obtain a representation of the loudspeaker acoustic output at the back cavity. The system also includes a processor to process the representation to perform the signal processing.

Abstract: According to one aspect, an electronic device that includes a vibrating element adapted to vibrate the electronic device, at least one sensor operable to detect the presence of an audible higher-order harmonic above a fundamental frequency when the vibrating element is active. The device also includes a processor operable to adjust the vibrating element to reduce the audible higher-order harmonic when the audible higher-order harmonic is detected.

Abstract: An illustrative embodiment provides an apparatus comprising a positive electrode, a negative electrode, a separator, a first conductor, and a second conductor. The positive electrode and the negative electrode are separated by the separator. The first conductor is configured to transmit a first electrical current from the positive electrode. Also, the second conductor is configured to transmit a second electrical current from the negative electrode. A direction of the first electrical current transmitted through the first conductor is substantially opposite to a direction of the second electrical current transmitted through the second conductor. A magnitude of the first electrical current is substantially equal to a magnitude of the second electrical current.

Abstract: According to one aspect, an electronic device that includes a vibrating element adapted to vibrate the electronic device, at least one sensor operable to detect the presence of an audible higher-order harmonic above a fundamental frequency when the vibrating element is active. The device also includes a processor operable to adjust the vibrating element to reduce the audible higher-order harmonic when the audible higher-order harmonic is detected.

Abstract: A communication device, and battery there for, are provided. In at least one of the battery and the communication device is provided a magnetic shield portion for routing magnetic flux away from the receiver when the radio is in operation. The magnetic shield portion can be incorporated into at least one of the battery and the communication device. When the battery is inserted into mobile communication device, the magnetic shield portion is located substantially between a battery portion, in the battery, and the receiver.

Abstract: A low magnetic interference battery is provided, the battery insertable into a mobile communication device, the mobile communication device comprising a radio interconnected with a microphone and a receiver. The battery comprises a battery portion enabled to provide electrical power to the radio, the battery portion emitting a magnetic field when in operation. The battery further comprises a sealing portion for sealing the battery portion therein such that the battery portion is protected from moisture, the sealing portion comprising a magnetic shield portion arranged relative to the battery portion such that magnetic flux from the battery portion is routed away from the receiver when the battery is in operation in the mobile communication device.

Abstract: A low magnetic interference battery is provided, the battery insertable into a mobile communication device, the mobile communication device comprising a radio interconnected with a microphone and a receiver. The battery comprises a battery portion enabled to provide electrical power to the radio, the battery portion emitting a magnetic field when in operation. The battery further comprises a sealing portion for sealing the battery portion therein such that the battery portion is protected from moisture, the sealing portion comprising a magnetic shield portion arranged relative to the battery portion such that magnetic flux from the battery portion is routed away from the receiver when the battery is in operation in the mobile communication device.

Abstract: Various embodiments are described herein for an electrode assembly for a stacked-cell battery. The electrode assembly comprises a first active material layer; a first current collector layer adjacent to and in electrical contact with an outer surface of the first active material layer; a tab element having an end lead portion and a second lead portion, the end lead portion being in electrical contact with at least one of the first active material layer and the first current collector layer, and the second lead portion extending away from the end lead portion and being substantially adjacent to a surface of at least one of the first active material layer and the first current collector layer and is adapted to provide an electrical connection to the electrode assembly; and an insulative layer covering an inner contact area of the second lead portion to electrically insulate this portion of the tab element.

Abstract: A communication device, and battery there for, are provided. In at least one of the battery and the communication device is provided a magnetic shield portion for routing magnetic flux away from the receiver when the radio is in operation. The magnetic shield portion can be incorporated into at least one of the battery and the communication device. When the battery is inserted into mobile communications devicemobile communication device, the magnetic shield portion is located substantially between a battery portion, in the battery, and the receiver.

Abstract: A method includes utilizing a plurality of electrodes of a capacitive touch-sensitive display to detect touches on the touch-sensitive display, concurrently driving a first group of the plurality of electrodes, and detecting an object spaced from the touch-sensitive display utilizing a second group of the plurality of electrodes while concurrently driving the first group of the plurality of electrodes.