Abstract:
A semiconductor device includes a first sensor element in a first branch of a Wheatstone bridge and a second sensor element in a second branch of the Wheatstone bridge. The semiconductor device includes a first reference element in the first branch and a second reference element in the second branch. The semiconductor device includes a circuit configured to switch the first sensor element to the second branch and the second sensor element to the first branch.
Abstract:
A method for measuring an angular position of a rotating shaft, the method including providing a magnetic field which rotates with the shaft about an axis of rotation, positioning an integrated circuit having first and second magnetic sensing bridges within the magnetic field at a radially off-center position from the axis of rotation, the first and second magnetic sensing bridges respectively providing first and second signals representative of first and second magnetic field directions, the integrated circuit having a set of adjustment parameters for modifying attributes of the first and second signals, modifying values of the set of adjustment parameters until errors in the first and second signals are substantially minimized, and determining an angular position of the shaft based on the first and second signals.
Abstract:
The invention is related to intelligent tire systems and methods. In one embodiment, an intelligent tire system (ITS) comprises a first sensor device, a second sensor device, a central control unit, and a transceiver. The first sensor device is mounted in a tire of a vehicle and comprises a radio frequency (RF) transmitter. The second sensor device is mounted in the tire and comprises an RF transceiver, the second sensor device adapted to receive a transmitter transmission from the first sensor device comprising first sensor data. The central control unit is mounted in the vehicle. The transceiver is mounted in the vehicle and is adapted to receive a transceiver transmission from the second sensor device comprising first sensor data and second sensor data and to transmit the transceiver transmission to the central control unit.
Abstract:
An embodiment of a magnetic-field sensor has a plurality of sensor elements connected to form measurement arrangements, each measurement arrangement having a measurement tap, and a control circuit formed to perform an embodiment of a method of calibrating the magnetic-field sensor.
Abstract:
In one embodiment, A system for communication has a receiver for receiving data from a passive transmitter capacitively coupled to the receiver. The receiver has a sensing element having a plurality of terminals configured to be capacitively coupled to the passive transmitter and DC isolated from the passive transmitter.
Abstract:
A semiconductor device includes a first sensor element in a first branch of a Wheatstone bridge and a second sensor element in a second branch of the Wheatstone bridge. The semiconductor device includes a first reference element in the first branch and a second reference element in the second branch. The semiconductor device includes a circuit configured to switch the first sensor element to the second branch and the second sensor element to the first branch.
Abstract:
An apparatus for reading out a modulated time-continuous sensor output signal includes a loop filter, a sample-quantizer and a feedback circuit. The loop filter filters the sensor output signal to provide a filtered sensor output signal, and amplifies frequency proportions present in a frequency range. The sample-quantizer samples and quantizes the filtered sensor output signal to provide a time-discrete, quantized sensor output signal. The feedback circuit feeds a feedback signal based on the time-discrete, quantized sensor output signal back to the loop filter and provides a readout signal.
Abstract:
A semiconductor device includes a diaphragm, a sensing element, and a circuit. The sensing element is configured to sense deflection of the diaphragm. The circuit is configured to heat the diaphragm to induce deflection of the diaphragm.
Abstract:
In an embodiment of the present invention, a method for sensing a body is disclosed. The method includes measuring an impedance of a body occupying a seat over a plurality of frequencies and comparing the measured impedance of the body with a predefined body model. The method also includes determining whether the predefined body model corresponds to the measured impedance of the body.
Abstract:
An angle measurement system including a magnet coupled to a rotating member and adapted to provide a magnetic field which rotates with the rotating member about a rotational axis of the rotating member, and an integrated circuit angle sensor disposed within the magnetic field at a radially off-center position from the rotational axis. The integrated circuit angle sensor includes first and second bridges of magneto resistive elements configured to respectively provide first and second signals representative of substantially orthogonal first and second directional components of the magnetic field and together representative of an angular position of the rotating member, and a set of adjustment parameters for adjusting attributes of the first and second signals having values selected to minimize errors in the first and second signals.