Abstract: A method operates a hearing system that has first and second hearing devices. In the first hearing device, a first reference signal and a first auxiliary signal are generated from an environment sound collected by microphones. A first pre-processed signal is generated by applying a direction-sensitive pre-processing to the first reference and auxiliary signals using first reference and first auxiliary pre-processing coefficients. For the microphones, a respective first reference head related transfer function and first auxiliary head related transfer function are provided, and a first head related transfer function is derived from the first reference and first auxiliary pre-processing coefficients and from the first reference and auxiliary head related transfer functions. For the second hearing device a second pre-processed signal is generated using second microphones, and a second position related transfer function is provided.

Abstract: Aspects of the subject disclosure may include, for example, identifying a modulation scheme for transmitting data from a transmitter to a receiver, identifying a plurality of symbols associated with the modulation scheme, determining that a transfer function of a filter that is applied at the transmitter imposes an interdependence amongst at least two symbols of the plurality of symbols, determining, based on the transfer function, a joint probability distribution of the plurality of symbols that reduces a signal power of at least one signal that is used to transmit the data subject to a constraint that an information rate associated with the at least one signal is greater than a threshold, and causing the data to be transmitted via the at least one signal from the transmitter to the receiver in accordance with the joint probability distribution. Other aspects are disclosed.

Abstract: An apparatus, method, and computer program product arranged to determine a communication frequency and communicate with a collision detection device at the determined communication frequency based on collision risk.

Abstract: A method detects a direction of arrival of an acoustic target signal. A local device contains first and second local microphones, and a remote device contains a first remote microphone. The method includes the steps of: deriving a first local input signal from first and second local microphone signals, deriving a second local input signal from the first and/or second local microphone signals, and deriving a first remote input signal from the first remote microphone. The first and second local input signals and first remote input signal form a part of a set of input signals. A plurality of spatial feature quantities are each derived from different respective pairs, and are indicative of a spatial relation between the two corresponding input signals. The spatial feature quantities are input to a neural network. The direction of arrival of the acoustic target signal is estimated in the neural network.

Abstract: Aspects of the subject disclosure may include, for example, identifying a modulation scheme for transmitting data from a transmitter to a receiver, identifying a plurality of symbols associated with the modulation scheme, determining that a transfer function of a filter that is applied at the transmitter imposes an interdependence amongst at least two symbols of the plurality of symbols, determining, based on the transfer function, a joint probability distribution of the plurality of symbols that reduces a signal power of at least one signal that is used to transmit the data subject to a constraint that an information rate associated with the at least one signal is greater than a threshold, and causing the data to be transmitted via the at least one signal from the transmitter to the receiver in accordance with the joint probability distribution. Other aspects are disclosed.

Abstract: A method operates a hearing system that has first and second hearing devices. In the first hearing device, a first reference signal and a first auxiliary signal are generated from an environment sound collected by microphones. A first pre-processed signal is generated by applying a direction-sensitive pre-processing to the first reference and auxiliary signals using first reference and first auxiliary pre-processing coefficients. For the microphones, a respective first reference head related transfer function and first auxiliary head related transfer function are provided, and a first head related transfer function is derived from the first reference and first auxiliary pre-processing coefficients and from the first reference and auxiliary head related transfer functions. For the second hearing device a second pre-processed signal is generated using second microphones, and a second position related transfer function is provided.

Abstract: An apparatus comprises circuitry configured to generate a predicted error signal by applying to a digital signal a distortion model characterized by parameters configured to model circuit component mismatches in a digital-to-analog converter (DAC), circuitry configured to generate a pre-compensated digital signal using the digital signal and the predicted error signal, and circuitry configured to provide the pre-compensated digital signal to the DAC for conversion into an analog signal.

Abstract: An apparatus comprises circuitry configured to generate a predicted error signal by applying to a digital signal a distortion model characterized by parameters configured to model circuit component mismatches in a digital-to-analog converter (DAC), circuitry configured to generate a pre-compensated digital signal using the digital signal and the predicted error signal, and circuitry configured to provide the pre-compensated digital signal to the DAC for conversion into an analog signal.

Abstract: A digital-to-analog converter (DAC) comprises circuitry configured to generate, based on a mapping, L signals representing an N-bit digital input, wherein N and L are positive integers, and wherein N<L<2N?1, and circuitry configured to control current flow from L weighted current sources using the L respective signals, thereby generating an analog output that uniquely represents the N-bit digital input, wherein the weighted current sources have weights configured to minimize at least one error metric associated with the analog output.

Abstract: A digital-to-analog converter (DAC) comprises circuitry configured to generate, based on a mapping, L signals representing an N-bit digital input, wherein N and L are positive integers, and wherein N<L<2N?1, and circuitry configured to control current flow from L weighted current sources using the L respective signals, thereby generating an analog output that uniquely represents the N-bit digital input, wherein the weighted current sources have weights configured to minimize at least one error metric associated with the analog output.

Abstract: A method for acknowledging presence in a context-aware environment includes the steps of detecting, with at least one context awareness mechanism, if a context-aware device is within a predetermined range or distance. The method further includes, that when the vehicle device or personal device is within a range of the moving vehicle, sending a request of acknowledgment to the vehicle device or personal device. In events where the moving vehicle device does not receive an acknowledgment from another vehicle or a worker within a predetermined duration, the moving vehicle is automatically stopped. In events where the moving vehicle device receives an acknowledgment from all the devices within the predetermined range, the device of the moving vehicle considers the context as non-hazardous and the vehicle may continue along its path.

Abstract: A receiver is configured to detect, at a communication interface, a received signal that suffers from degradations incurred over a communication channel. The receiver applies an adaptive filter to a series of received blocks of a digital representation of the received signal, thereby generating respective filtered blocks, where each received block represents 2N frequency bins, and where N is a positive integer. The receiver calculates coefficients for use by the adaptive filter on a jth received block as a function of (i) error estimates associated with an (j?D?1)th filtered block, where D is a positive integer representing a number of blocks, and where j is a positive integer greater than (D?1); and (ii) an inverse of an approximate covariance matrix associated with the (j?D?1)th received block, where the approximate covariance matrix is a diagonal matrix of size L×L, and where L is a positive integer lower than 2N.

Abstract: A receiver is configured to detect, at a communication interface, a received signal that suffers from degradations incurred over a communication channel. The receiver applies an adaptive filter to a series of received blocks of a digital representation of the received signal, thereby generating respective filtered blocks.

Abstract: A method for acknowledging presence in a context-aware environment includes the steps of detecting, with at least one context awareness mechanism, if a context-aware device is within a predetermined range or distance. The method further includes, that when the vehicle device or personal device is within a range of the moving vehicle, sending a request of acknowledgment to the vehicle device or personal device. In events where the moving vehicle device does not receive an acknowledgment from another vehicle or a worker within a predetermined duration, the moving vehicle is automatically stopped. In events where the moving vehicle device receives an acknowledgment from all the devices within the predetermined range, the device of the moving vehicle considers the context as non-hazardous and the vehicle may continue along its path.

Abstract: An optical signal modulated with a stream of symbols comprising a sequence of training symbols is received at a receiver. First equalizer circuitry calculates and applies first coefficients to digital signals representative of the optical signal, thereby resulting in first compensated signals. Second equalizer circuitry calculates second coefficients based on a correlation between the first compensated signals and digital signals representative of the sequence of training symbols and applies the second coefficients to the first compensated signals, thereby resulting in second compensated signals. Third equalizer circuitry calculates and applies third coefficients to the second compensated signals, thereby resulting in third compensated signals. The first, second, and third coefficients compensate for impairments in the optical signal varying at respective first, second, and third rates, where the third rate is higher than the first rate and lower than the second rate.

Abstract: A method for enhancing a signal directionality in a hearing instrument wherein first and second signals are generated by first and second input transducers that are spaced apart from one another. A first directional signal is derived from the first input signal and the second input signal by applying a second-to-first relative transfer function with respect to a first target angle to the second input signal. The second-to-first relative transfer function is a relative transfer function from the second input transducer to the first input transducer with respect to the first target angle. Similarly, a second directional signal is derived from the second input signal and the first input signal by applying a first-to-second relative transfer function with respect to a second target angle to the first input signal. An angle-enhanced signal is derived from the first directional signal and the second directional signal.

Abstract: The invention discloses a method for noise reduction in a binaural hearing aid, said binaural hearing aid comprising a first local unit and a second local unit, wherein the method comprises the following steps: generating a first main signal and a first auxiliary signal in the first local unit from an environment sound, and a second main signal in the second local unit from the environment sound, estimating a direction of arrival of a useful sound signal in the environment sound, assigning a first frequency range and a second frequency range, generating a first range beamformer signal in the first frequency range from the first main signal, the first auxiliary signal and the second main signal by imposing at least one spatial condition related to the estimated direction of arrival on the directional characteristic of the first range beamformer signal, generating a second range beamformer signal in the second frequency range from the first main signal and the second main signal by imposing at least one spatial

Abstract: The invention proposes a method for improving the spatial hearing perception of a binaural hearing aid, said binaural hearing aid comprising a first local unit and a second local unit, wherein in the first local unit, a first input signal is generated from an environment sound by a first input transducer, and a first reference signal is derived from the first input signal, wherein in the second local unit, a second input signal is generated from the environment sound by a second input transducer, and a second reference signal is derived from the second input signal, wherein from the first reference signal and the second reference signal, a first binaural beamformer signal is derived, wherein from the first reference signal and the first binaural beamformer signal, a first coherence parameter is derived, wherein from the first coherence parameter, a first mixing parameter is derived, and wherein the first reference signal and the first binaural beamformer signal are mixed by means of the first mixing parameter

Abstract: The invention proposes a method for improving the spatial hearing perception of a binaural hearing aid, said binaural hearing aid comprising a first local unit and a second local unit, wherein in the first local unit, a first input signal is generated from an environment sound by a first input transducer, and a first reference signal is derived from the first input signal, wherein in the second local unit, a second input signal is generated from the environment sound by a second input transducer, and a second reference signal is derived from the second input signal, wherein from the first reference signal and the second reference signal, a first binaural beamformer signal is derived, wherein from the first reference signal and the first binaural beamformer signal, a first coherence parameter is derived, wherein from the first coherence parameter, a first mixing parameter is derived, and wherein the first reference signal and the first binaural beamformer signal are mixed by means of the first mixing parameter

Abstract: The invention discloses a method for noise reduction in a binaural hearing aid, said binaural hearing aid comprising a first local unit and a second local unit, weherein the method comprises the following steps: generating a first main signal and a first auxiliary signal in the first local unit from an environment sound, and a second main signal in the second local unit from the environment sound, estimating a direction of arrival of a useful sound signal in the environment sound, assigning a first frequency range and a second frequency range, generating a first range beamformer signal in the first frequency range from the first main signal, the first auxiliary signal and the second main signal by imposing at least one spatial condition related to the estimated direction of arrival on the directional characteristic of the first range beamformer signal, generating a second range beamformer signal in the second frequency range from the first main signal and the second main signal by imposing at least one spatia