Abstract: The present disclosure relates to systems and methods for enhancing active noise cancellation (ANC) in vehicles, particularly for addressing the challenges associated with broadband noise control. The disclosure introduces a novel approach to subband adaptive filtering (SAF) that significantly reduces computational load and improves noise cancellation across a wide frequency spectrum. The noise cancellation system comprises a reference sensor, adaptive weight filter, speakers, error microphones, signal processing unit, subband processing module, gradient determination module, adaptive step size determination module, subband adaptive weight update module, and weight transformation module. The disclosed approaches enable implementation of ANC in environments with limited processing power without sacrificing performance, by reducing complexity and improving convergence speed and stability of the adaptive filter weights.

Abstract: Described herein are methods and systems for a vehicle system which provide inbuilt road noise cancellation in the vehicle. In one or more embodiments, a method for road noise cancellation comprises using a head-tracking device to monitor an occupant ear position, capturing airborne noise using a feedforward microphone and a headrest microphone of a zone in which the occupant ear is positioned, updating acoustic path information according to the occupant ear position(s) and speaker position(s) within the zone, generating a noise cancellation signal using sampling rate greater than 2 kHz, and outputting the noise cancellation signal via a headrest speaker located near the zone in which the occupant ear is positioned to at least partially reduce a road noise sound level in the zone.

Abstract: Embodiments of a diagnostic tool for an active noise cancelling system are presented. The diagnostic tool may generate an output from the active noise cancelling system and capture input to the active noise cancelling system that results from the output of the active noise cancelling system. The diagnostic tool may generate visual output to aid in evaluation of active noise cancelling systems.

Abstract: Methods and systems are disclosed for an audio system for a vehicle system. In one example, a noise cancellation system includes a vehicle having a plurality of speakers and a plurality of microphones, a plurality of sensors, and a controller. The controller includes instructions stored on non-transitory memory that when executed cause the controller to generate a noise cancellation signal using a set of head-related impulse responses for the plurality of speakers and the plurality of microphones based on a head position of one or more occupants and a plurality of transfer functions, including to selectively update only a subset of the plurality of transfer functions responsive to the plurality of sensors detecting head movement greater than a threshold.

Abstract: The present disclosure relates to profiling industrial networks as part of an engineering, commissioning, modification, maintenance, or repair process. The comparison of a current running profile of an industrial network to previous or archived profiles provides unique information for the commissioning, modification, maintenance, or repair of the network. Further, the comparison of the current running profile of a network to reference profiles is provided. Generally, a network condition-based monitoring analysis engine is provided.

Abstract: In order to reduce the dimensions of the mechanical components and the number and size of the sensory and electronic components in an arrangement comprising a magnetic-field-dependent angle sensor which is effectively connected to a magnetic transmitter which is arranged such that it can rotate with respect to the angle sensor, while maintaining or improving the resolution of the output signal, the angle sensor is formed by at least one magnetoelectric converter, the electrical properties of which are dependent on the magnetic field strength but independent of the polarity of the magnetic field acting on the at least one converter. The magnetic field strength is selected such that the at least one converter is controlled in saturation.

Abstract: An International Standards Organization (“OSI”) Layer-2 (“Ethernet”) Pseudo-wire (“OSI Layer-1 type service”) appliance, method, system and hub service is disclosed. The method and system facilitate the rapid deployment of Layer-2 Pseudo-wires over unknown and untrusted Internet Protocol (“IP”) networks. The method and system facilitate the fluid edge of corporate networks and any situation where the Layer-3 network addresses cannot be changed.

Abstract: An International Standards Organization (“OSI”) Layer-2 (“Ethernet”) Pseudo-wire (“OSI Layer-1 type service”) appliance, method, system and hub service is disclosed. The method and system facilitate the rapid deployment of Layer-2 Pseudo-wires over unknown and untrusted Internet Protocol (“IP”) networks. The method and system facilitate the fluid edge of corporate networks and any situation where the Layer-3 network addresses cannot be changed.

Abstract: A phase detection system (100) comprises an input terminal (101), first and second peak detectors (103, 113), an averaging unit (107), an offset unit (122), and a comparator (126). Input terminal (101) is coupled to the first and to the second peak detectors (103, 113) and provides an input signal to phase detection system (100). Averaging unit (107) is coupled between offset unit (122) and both the first peak detector and the second peak detector (103, 113), and generates an intermediate signal. Offset unit (122) is coupled to input terminal (101) and generates two comparable signals by applying a predetermined offset in signal strength to the input signal or the intermediate signal. The comparator (126) is coupled to the offset unit (122) and generates an output signal by comparing the two comparable signals which is indicative of the phase of the input signal.

Abstract: In order to reduce the dimensions of the mechanical components and the number and size of the sensory and electronic components in an arrangement comprising a magnetic-field-dependent angle sensor which is effectively connected to a magnetic transmitter which is arranged such that it can rotate with respect to the angle sensor, while maintaining or improving the resolution of the output signal, the angle sensor is formed by at least one magnetoelectric converter, the electrical properties of which are dependent on the magnetic field strength but independent of the polarity of the magnetic field acting on the at least one converter. The magnetic field strength is selected such that the at least one converter is controlled in saturation.

Abstract: According to an example embodiment, there is a magneto-resistive (MR) sensor having an operation mode and a test mode. The MR sensors comprise a first plurality of first MR elements and a second plurality of second MR elements. A first signal processing unit is connected to the first plurality of first MR elements for generating a first output signal; the first output signal has a first phase. As second signal processing unit is connected to the second plurality of second MR elements for generating a second output signal; the second output signal has a second phase. There is a third signal processing unit or processing the first and second output signals; the third signal processing unit is adapted to activate one of the operation mode and the test mode on the basis of the first and second output signals. When the first and second plurality of first and second MR elements are exposed to a homogeneous magnetic field, the third signal processing unit is adapted to activate the test mode.

Abstract: A phase detection system (100) comprises an input terminal (101), first and second peak detectors (103, 113), an averaging unit (107), an offset unit (122), and a comparator (126). Input terminal (101) is coupled to the first and to the second peak detectors (103, 113) and provides an input signal to phase detection system (100). Averaging unit (107) is coupled between offset unit (122) and both the first peak detector and the second peak detector (103, 113), and generates an intermediate signal. Offset unit (122) is coupled to input terminal (101) and generates two comparable signals by applying a predetermined offset in signal strength to the input signal or the intermediate signal. The comparator (126) is coupled to the offset unit (122) and generates an output signal by comparing the two comparable signals which is indicative of the phase of the input signal.

Abstract: In particular in automotive applications, sensor systems comprising geometrical leak shift sensor elements must fulfill properties and requirements with respect to quality, accuracy and safety. For this, sensors have to be tested and trimmed. According to an exemplary embodiment of the present invention, a magneto-resistive sensor is provided, allowing for a testing and trimming of the sensor elements by applying a homogenous magnetic field to the sensor Advantageously, this allows for the provision of a magneto-resistive sensor, having a simple arrangement.

Abstract: Magnetic field sensors may be used for determination of a position or of a rotational speed of an object. According to an exemplary embodiment of the present invention, a sensor system comprises a sensor unit generating a frequency output reflecting the rotational speed or the position of the object, wherein the frequency output has a higher frequency than an encoding frequency of the object. This may provide for an improved resolution. The intrinsic sensor characteristic leads to a signal having twice or four times the frequency of the encoded magnetic field. The sensor may be a giant magneto-resistance (GMR) sensor.

Abstract: In an arrangement comprising a magnetic field sensor which is effectively connected to a magnetic encoder which is arranged such that it can move with respect to the sensor and comprises magnetic poles with alternating polarity, wherein the sensor consists of at least two half-bridges which are in each case formed by two magnetoelectric elements, the electrical properties of which depend on the magnetic field strength, it is provided that the elements of each half-bridge have resistance/field strength characteristics which run in opposite directions and are arranged such that they are in phase with respect to the magnetic field, and that the spacing between the half-bridges corresponds to part of the pole pitch of the magnetic encoder.

Abstract: What is described is a magnetoresistive sensor for operation with a magnetized encoder, which is equipped with a zone with magnetic north and south poles arranged alternately along a direction of motion, comprising a Wheatstone bridge configuration with a first bridge arm between a first supply terminal and a first signal output terminal of the Wheatstone bridge configuration, a second bridge arm between the first supply terminal and a second signal output terminal of the Wheatstone bridge configuration, a third bridge arm between a second supply terminal and the first signal output terminal of the Wheatstone bridge configuration, and a fourth bridge arm between the second supply terminal and the second signal output terminal of the Wheatstone bridge configuration, wherein each of the bridge arms comprises an ohmic resistance element with a resistance-value dependence on the magnetic field strength of a magnetic field influencing the ohmic resistance element in accordance with a defined characteristic.

Abstract: What is described is a configuration for determining the position of a body along a movement direction, wherein the body is in the form of a magnetized encoder with two magnetic tracks extending, on one surface of the body, along the movement direction, at least essentially in parallel with one another, wherein, at specified intervals along the movement direction, a first of the magnetic tracks exhibits magnetized sections in which the magnetic north poles are aligned so as to be at least largely coincident in a magnetization direction that is essentially at right-angles to the surface of the body, and wherein, at intervals specified to coincide with the above-mentioned intervals along the movement coordinate, the second of the magnetic tracks exhibits magnetized sections in which the magnetic south poles are aligned so as to be at least largely coincident in the said magnetization direction, and wherein, in each case, a magnetized section of one of the magnetic tracks is located at least largely centrally in

Abstract: A radio frequency (RF) power combiner for connecting multiple base transceiver stations with one antenna assembly includes at least one combinational logic device coupled to at least two base transceiver stations for combining signals generated thereby into a combined signal for being transmitted by the antenna assembly. At least one frequency selective RF power detector is coupled to one of the signals generated from one of the base transceiver stations for generating an output indicating whether the signal at a predetermined frequency is present. A logic control module is coupled to the frequency selective RF power detector for generating a control signal in response to the output of the detector. An oscillator is coupled to the logic control module for generating a carrier signal at the predetermined frequency for the combined signal in response to the control signal.

Abstract: What is described is a magnetoresistive sensor for operation with a magnetized encoder, which is equipped with a zone with magnetic north and south poles arranged alternately along a direction of motion, comprising a Wheatstone bridge configuration with a first bridge arm between a first supply terminal and a first signal output terminal of the Wheatstone bridge configuration, a second bridge arm between the first supply terminal and a second signal output terminal of the Wheatstone bridge configuration, a third bridge arm between a second supply terminal and the first signal output terminal of the Wheatstone bridge configuration, and a fourth bridge arm between the second supply terminal and the second signal output terminal of the Wheatstone bridge configuration, wherein each of the bridge arms comprises an ohmic resistance element with a resistance-value dependence on the magnetic field strength of a magnetic field influencing the ohmic resistance element in accordance with a defined characteristic.

Abstract: What is described is a configuration for determining the position of a body along a movement direction, wherein the body is in the form of a magnetized encoder with two magnetic tracks extending, on one surface of the body, along the movement direction, at least essentially in parallel with one another, wherein, at specified intervals along the movement direction, a first of the magnetic tracks exhibits magnetized sections in which the magnetic north poles are aligned so as to be at least largely coincident in a magnetization direction that is essentially at right-angles to the surface of the body, and wherein, at intervals specified to coincide with the above-mentioned intervals along the movement coordinate, the second of the magnetic tracks exhibits magnetized sections in which the magnetic south poles are aligned so as to be at least largely coincident in the said magnetization direction, and wherein, in each case, a magnetized section of one of the magnetic tracks is located at least largely centrally in