Abstract:
A hearing aid (100) comprises first wireless link means configured to receive a first data signal using a first carrier frequency and second wireless link means configured to receive a second data signal using a second carrier frequency and wherein a first electrical antenna of the first wireless link means also forms part of a first band pass filter of the second wireless link means. The invention provides a hearing aid, a binaural hearing aid system and a method of receiving a first and second wireless signal.
Abstract:
A monitoring system including a master device adapted for wireless communication with at least one slave device having a sensor. The sensor of the at least one slave device is adapted for acquiring a physiological signal. The master device is adapted for providing a synchronization signal to the at least one slave device and instructing the at least one slave device to acquire the physiological signal based on timing instructions. The at least one slave device is adapted for acquiring the physiological signal by means of the sensor according to the received timing instructions and transmitting the acquired physiological signal wirelessly to the master device. The master device includes a processor for processing the synchronized, physiological signals acquired by sensors synchronized via wireless communication.
Abstract:
A hearing assistive system including a first hearing assistive device adapted for wireless communication with second hearing assistive device, wherein the first hearing assistive device and the second hearing assistive device have at least one sensor adapted for acquiring a physiological signal each. The first hearing assistive device is adapted for providing a synchronization signal to the second hearing assistive device and instructing the second hearing assistive device to acquire the physiological signal based on timing instructions. The second hearing assistive device is adapted for acquiring the physiological signal by means of the sensor according to the received timing instructions and transmitting the acquired physiological signal wirelessly to the first hearing assistive device. The first hearing assistive device includes a processor for processing the synchronized, physiological signals acquired by sensors of the first hearing assistive device and the second hearing assistive device and synchronized via wireless communication.
Abstract:
An frequency shift keying (FSK) transceiver for use in a hearing aid is capable of automatic tuning of the transceiver frequency. The automatic tuning makes use of a phase difference detector and a tuning manager adapted to control the frequency of a resonant circuit of the FSK transceiver according to information received from the phase difference detector. The phase difference detector measures the phase difference across a component of the resonant circuit of the FSK transceiver. If the phase difference of a binary FSK symbol is equal to the phase difference of the opposite binary FSK symbol, the resonant circuit is tuned, otherwise the tuning manager performs a tuning procedure in order to minimize the difference in phase differences, and adjusts the frequency of the resonant circuit accordingly.