Abstract:
A MEMS sensor system and method of operation is provided. The MEMS sensor system comprises a sensor device having a movable member and a sensor circuitry communicatively coupled the sensor device to at least one or more terminals. The sensor circuitry comprises a sensor ASIC and an analog signal processor coupled to least one of the sensor ASIC, the sensor device, and the terminal. The sensor ASIC is configured to operate either at a full performance mode after an audio signal is detected or at a lower power mode when the audio signal is not detected. A preamplifier coupled to the sensor device is configured to output a signal indicative of acoustic pressures on the movable member is provided. The sensor circuitry further comprises a sigma-delta modulator communicatively coupled to the preamplifier. When a target audio signal is detected by the analog signal processor, a control signal is sent to the sensor ASIC to set the preamplifer to full performance mode and to power on the sigma-delta converter. When a target audio signal is not detected by the analog signal processor, the control signal to the sensor ASIC sets the preamplifier to low performance mode and powers down the sigma delta converter. The sensor ASIC and the audio signal processor may be either in a three-dimensional chip stacked configuration or integrated together to form a single sensor circuitry.
Abstract:
This application relates to earbuds configured with one or more biometric sensors. At least one of the biometric sensors is configured to be pressed up against a portion of the tragus for making biometric measurements. In some embodiments, the housing of the earbud can be symmetric so that the earbud can be worn interchangeably in either a left or a right ear of a user. In such an embodiment, the earbud can include a sensor and circuitry configured to determine and alter operation of the earbud in accordance to which ear the earbud is determined to be positioned within.
Abstract:
A method for representing a second presentation of audio channels or objects as a data stream, the method comprising the steps of: (a) providing a set of base signals, the base signals representing a first presentation of the audio channels or objects; (b) providing a set of transformation parameters, the transformation parameters intended to transform the first presentation into the second presentation; the transformation parameters further being specified for at least two frequency bands and including a set of multi-tap convolution matrix parameters for at least one of the frequency bands.
Abstract:
The present invention relates to method for managing operations on at least a portion (3P) of non volatile memory (3) of a hearing aid (10), the hearing aid (10) comprising at least one electroacoustic transducer (1, 1'); signal processing means (2), configured to receive from the at least an electroacoustic transducer (1) an electrical input signal and/or to provide the at least an electroacoustic transducer (1') with an electrical output signal, the signal processing means (2) cooperating with a non volatile memory (3) for storing, retrieving and/or erasing data; an internal power storage means (4) configured to provide power to said electroacoustic transducer (1, 1') and to said signal processing means (2) when said hearing aid (10) is worn by a user; and means for receiving power (6) from an external power source (5) comprising detection means for sensing whether said hearing aid (10) is connected to said external power source (5). The memory managing method comprises the steps of verifying, by the detection means, if the hearing aid (10) is connected to the external power source (5); and, only if it is verified that the hearing aid is connected to the external power source 5, performing erasure operations on at least a portion 3P of the non volatile memory 3. The present invention also relates to a hearing aid (10) configured to operate according to the above method and to a hearing aid system (20) comprising such a hearing aid 10 and an external power source (5).
Abstract:
A balanced armature ("BA") based valve is described. The valve includes a motor having a coil assembly and a magnetic system, an armature extending through or being located adjacent to the motor, a drive pin coupled to the armature, and a valve flap of a membrane having a hole therein. The valve flap is actuated by the drive pin into open and closed positions, in response to respective motions of the armature. A housing contains the motor, the armature, the drive pin, and the membrane. In one embodiment, the membrane is attached to the housing and divides the housing into an upper space and a lower space, and there is airflow through the hole, between the upper space and the lower space, only when the valve flap is open.
Abstract:
Die Erfindung betrifft ein Hörinstrument (1), das eine Signalverarbeitungseinheit (4) und eine Energieversorgungseinrichtung (15) umfasst. Letztere umfasst wiederum eine Energieversorgungselektronik (28) sowie in einem bestimmungsgemäßen Betriebszustand ein wiederholt aufladbares Energieversorgungsmittel (27). Ferner umfasst das Hörinstrument (1) ein Schaltmittel (11, 24), das zur Annahme von wenigstens zwei Schaltzuständen eingerichtet ist, wobei die Energieversorgungselektronik (15) dazu eingerichtet ist, in Abhängigkeit des Schaltzustands des Schaltmittels (11, 24) einen Abschaltzustand des Hörinstruments (1) zu steuern.
Abstract:
A headset includes a first speaker coupled to a first compensation network and a second speaker coupled to a second compensation network. The headset also includes a differential sensing module configured to determine a differential signal between a first input signal associated with the first speaker and a second input signal associated with the second speaker. The differential signal is used to determine whether the headset is detected as worn by a user. A controller adjusts a power level supplied to the headset based on the differential signal.
Abstract:
There is provided a hearing assistance system, comprising a first hearing assistance device (10) to be worn at a first one of a user's ears and a second hearing assistance device (11 ) to be worn at a second one of the user's ears, each hearing assistance device comprising an interface (20) for receiving a wireless external data stream (74) from an external data source device (60) and for receiving stream access information (76) transmitted from the external data source device and required to access the data stream, each hearing assistance device being adapted to exchange data with the other hearing assistance device, each hearing assistance device being adapted to switch, after elapse of a scanning period, between a scanning mode (80) in which the hearing assistance device scans for meta-information transmitted from the external data source and a sleeping mode (82) in which the hearing assistance device does not scan for stream information, wherein the hearing assistance devices are adapted to synchronize by data exchange between the first hearing assistance device and the second hearing assistance device in such manner that at least for some time one of the hearing assistance devices is in the scanning mode and the other one of the hearing assistance devices is in the sleeping mode, and wherein each hearing assistance device is adapted to notify, after having received stream access information from the external data source device in the scanning mode, the other one of the hearing assistance devices that it has received stream access information from the external data source device.
Abstract:
The present invention is related to a method of operating a hearing device (1) capable of active occlusion control (AOC) as well as to a hearing device (1) adapted to perform the method. In particular, the present invention is directed to preventing instabilities, avoiding saturation of the output transducer (e.g. receiver) as well as saving power in a hearing device employing AOC. As part of the proposed method a low frequency signal, which is preferably not audible for the user, is generated within the hearing device (1) and combined with a processed version of an audio signal picked, up by an ambient microphone (2) as well as a filtered version of an audio signal picked up by an ear canal microphone (5), and outputting the combined audio signal via a receiver (4) into an ear canal of the user. Furthermore, a gain is applied to the filtered version of the audio signal picked up by an ear canal microphone (5), whereby the gain is dependent on the outcome of analysing at least the audio signal picked up by the ear canal microphone (5) and for instance also the combined audio signal applied to the receiver (4).
Abstract:
An exemplary sound processor apparatus included in an auditory prosthesis system includes 1) an interface assembly that includes at least a first contact, 2) a first switchable current source having an output coupled to the first contact of the interface assembly by way of a first data line, 3) a differential transmitter having an output coupled to the first contact of the interface assembly by way of the first data line, 4) a differential receiver having an input coupled to the first contact of the interface assembly by way of the first data line, and 5) a control module communicatively coupled to the first switchable current source, the differential transmitter, and the differential receiver and configured to selectively operate in a component type detection mode and in a programming mode. Corresponding sound processor apparatuses, systems, and methods are also described.