Abstract: Estimated output signals of the reference signals are generated using an estimated filter path transfer function that provides an estimated effect on sound waves traversing a physical path, the estimated filter path transfer function performing processing according to a diagonalization matrix and reference signals. Anti-noise signals are generated from the reference signals using an adaptive filter driven by learning unit signals received from a learning algorithm unit, the learning unit signals based in part on error output signals generated from the estimated output signals, the anti-noise signals including signals per sound zone and per reference signal, each sound zone including a microphone and one or more loudspeakers. A sum across references is performed on the anti-noise signals to generate a set of output signals per sound zone. The set of output signals are processed by the diagonalization matrix to generate a set of output signals per loudspeaker.

Abstract: In order to achieve the above-mentioned object or another objective, a portable acoustic device according to one aspect of the present invention comprises: a man body housing having an opening at a first surface thereof; an acoustic output unit provided inside the main body housing; an ear housing having a first end portion connected to the opening at the first surface of the main body housing, and having an acoustic hole formed at a second end portion; and a rotating module for rotating the ear housing relative to the main body housing, wherein the portable acoustic device can be carried by being inserted into the ear of a user, can be worn in either the left ear or the right, and increases wearing sensation by being wearable since the angle thereof is changed to be suitable for the ears of the user.

Abstract: A two-wire communication system includes a first audio circuit, and a second audio circuit electrically connected to the first audio circuit via a two-wire bi-directional multi-node communication bus. The communication connects the first audio circuit to the second audio circuit wherein an audio signal, an enable signal, and a clip detect signal are transmitted over the bus.

Abstract: A method comprising: receiving audio input from multiple microphones; receiving position information for the multiple microphones; selecting in dependence upon positions of the microphones, at least a first microphone as a source of audio input forming a first output; selecting in dependence upon positions of the microphones, at least a second microphone as a source of audio input forming a second output; and enabling live rendering of audio by providing the first output for rendering via a left loudspeaker and the second output for rendering via a right loudspeaker.

Abstract: A sensor cord construction to prevent capacitance variation is described herein. A sensor may be connected to a controller via a cord that includes a first cable and a second cable. The first cable includes first shield wires that are twisted around the first cable in a first direction, and the second cable includes second shield wires that are twisted around the second cable in a second direction that is opposite the first direction. When the cord is twisted, one of the first or second cables may provide a positive capacitance variation, while the other of the first or second cables may provide a negative capacitance variation in an amount that is directly proportional to the positive capacitance variation. Thus, the controller detects a minimum capacitance variation, when the cord is twisted, due to the capacitance variation of the first cable and the second cable canceling each other out.

Abstract: Systems, devices, and methods are described for providing loudspeaker protection. An upstream loudspeaker model estimation component receives sensed electrical characteristics of a loudspeaker and generates an impedance model from which an excursion model, and associated parameters, of the loudspeaker as well as a gain change parameter may be generated. The impedance components are fitted to features of an estimated impedance, based on the voltage and current sense data, to generate the estimated impedance model that is converted to an excursion model of the loudspeaker. A downstream audio signal processing component, based on the excursion model, or parameters thereof, limits a predicted excursion of the loudspeaker utilizing excursion-constraining processing circuitry that includes a non-linear constraint filter. Processed audio signals associated with the limited excursion are subject to distortion suppression prior to releasing the output audio signals for playback on the loudspeaker.

Abstract: A method of predicting battery test results includes using a battery test computer to predict a battery test result for a battery undergoing testing. The battery test computer comprises a tangible, non-transitory computer-readable medium storing a battery test management system implemented as one or more sets of instructions. The battery test management system includes a predictive module configured to predict the battery test result using less than all data required for the battery test to be complete, a validation module configured to validate the prediction, and a training module configured to re-train the predictive module based on results generated by the validation module. The battery test computer also includes processing circuitry configured to execute the one or more sets of instructions, and outputting, via a user interface, the prediction of the result and a confidence level associated with the prediction.

Abstract: An entertainment audio processing system includes a music limiter configured to receive an audio signal, volume control information for music, and volume control information for announcement. The music limiter is further configured to calculate a gain parameter based on a music-to-announcement ratio. In another aspect, an entertainment audio processing system includes a mixer configured to substantially match a left audio signal channel and a right audio signal channel. The entertainment audio processing system further includes an equalizer configured to introduce magnitude and phase changes between the left audio signal channel and the right audio signal channel.

Abstract: A method for measuring three dimensional coordinates of each of points on a surface of an object includes pre-storing an algorithm that includes a plurality of parameters. A driving device is controlled to drive a distance sensor to move to each of measuring positions, and a first distance between each of the points and the distance sensor is obtained using the distance sensor. Each position information of the distance sensor is obtained using a position sensor, when the distance sensor is located at each of the measuring positions. Once a parameter of a reference coordinate is determined, the three dimensional coordinates of each of the points is computed using the algorithm based on the plurality of parameters.

Abstract: A loudspeaker arrangement for a passenger cabin of a transport means, including a loudspeaker and a housing having a receiver for the loudspeaker. The loudspeaker includes at least one membrane capable of oscillation and at least one loudspeaker coil. The loudspeaker coil is integrated into the membrane capable of oscillation, wherein the membrane electrically insulates the loudspeaker coil at least in part.

Abstract: A semiconductor integrated circuit device includes a temperature prediction circuit that predicts the temperature of a power semiconductor device having a built-in switching transistor. The temperature prediction circuit includes: a delay circuit that stores a history of electric power values for a specific number of times, the electric power values being calculated based on the steady loss and switching loss of the switching transistor; and a circuit that calculates the temperature prediction value of the power semiconductor device based on the value of the delay circuit and a time factor corresponding to a temperature heat dissipation characteristic.

Abstract: Disclosed is an electronic device including a side speaker hole. The disclosed electronic device may include: a housing including a first face facing a first direction, a second face facing a second direction opposite the first direction, a side face facing a third direction perpendicular to each of the first and second directions and surrounding at least a portion of a space between the first and second faces; a first plate disposed on the first face and exposed in the first direction; and a second plate disposed on the second face and exposed in the second direction. The first plate may include a plurality of first edge regions, and at least one of the first edge regions includes, in at least a portion thereof, at least one first curved region that extends in the third direction, and at least one speaker hole may be disposed on a side face between the first curved region and the second plate.

Abstract: A system and method are disclosed for interrogating a liquid in a container. In one embodiment, methods are provided to interrogate and identify a container material type and a liquid within a container.

Abstract: The present disclosure provides an automated rail inspection system. The present disclosure also provides a method for calibrating a strain gage based neutral temperature measurement system.

Abstract: At least one processor that performs at least one of determine at least two audio signals, determine at least one directionality of at least one audio source from the at least two audio signals, determine at least one timing of the at least one audio source from the at least two audio signals, generate at least one context for the at least two audio signals based on the at least one directionality and the at least one timing of the at least two audio signals, and provide at least one user interface based on the generated at least one context.

Abstract: Active noise control systems and methods are disclosed that include generating with a first sub-system, anti-noise that is configured to reduce or cancel noise occurring at a listening position. Generating with a second sub-system, anti-noise that is configured to reduce or cancel noise occurring at the listening position. The first active noise control sub-system has a higher robustness than the second active noise control sub-system.

Abstract: Methods and apparatuses for noise masking are described. In one example, a location data is received or identified at a noise masking system, the noise masking system including a plurality of selectable noise masking sound audio files and a plurality of selectable video files. A noise masking sound audio file is selected from the plurality of selectable noise masking sound audio files and a video file is selected from the plurality of selectable video files utilizing the location data. The noise masking sound audio file is output to a loudspeaker and the video file is output to a video display device.

Abstract: An improved method and system for enhancing a user's experience within an immersive environment is disclosed. Solutions and implementations provided improve the user's ability to both hear and identify sounds from outside the user's immersive experience. Implementations include receiving audio and sensor input from the environment, analyzing the received input and adjusting either the display or audio outputs generated for the user based in part on pre-determined policies.

Abstract: In a mounting assembly of a vehicular utility part mounting member and a vehicular interior part, the vehicular utility part mounting member includes first and second walls extending from a cover member to be opposite each other and configured to have a vehicular utility part therebetween, an extended wall including first and second extended portions extending from extended distal end portions of the first and second walls to an outside of the cover member and parallel to the cover member, and a connection portion connecting end portions of the first and second extended portions that are outside the cover member. The vehicular utility part arranged in a space inside the extended wall has an exposed portion that is disposed outside the cover member and the exposed portion overlaps an insertion hole edge of the insertion hole of the vehicular interior part.

Abstract: A state of a ballast water treatment system of a ship detected by a variety of sensors is monitored by transmitting it to a control means provided with a data storage/transmission means. The control means transmits from a satellite communication means to a satellite communication means on the receiving side via a communication satellite, and a host computer receives it. The host computer analyzes and monitors information from the various sensors S1 to S6 and sends back an optimal operation state, which is received by the satellite communication means on the ship side via the communication satellite, and the control means maintains an operation of the ballast water treatment system based on instructions from the host computer. According to the remote monitoring device for a ballast water treatment system as above, the ballast water treatment system can be monitored and controlled from remote.