公开(公告)号：US10026306B2

公开(公告)日：2018-07-17

申请号：US13751335

申请日：2013-01-28

Applicant: Infineon Technologies AG

Inventor： Dirk Hammerschmidt

IPC: G08C19/16 ,  G08C19/20

Abstract: A signal generator includes a signal provider and a signal processing unit. The signal provider is configured to provide a sensor signal indicating a repeatedly detected event, occurring within differing time intervals. The signal processing unit is configured to generate a transmit signal based on the sensor signal. The transmit signal includes event information representing the temporal occurrence of the event and additional information representing additional data. The event information includes pulses or signal edges associated to detected events, wherein the pulses or signal edges are temporarily separated within the transmit signal according to the differing time intervals of detected events so that each time interval of the differing time intervals includes one pulse or one signal edge associated with a detected event. Further, the additional data includes at least one frame including a predefined number of additional data bits. The information of the additional data bits of the at least one frame is distributed over at least two time intervals of the differing time intervals.

公开(公告)号：US09967119B2

公开(公告)日：2018-05-08

申请号：US15379894

申请日：2016-12-15

Applicant: Infineon Technologies AG

Inventor： David Levy ,  Dirk Hammerschmidt

IPC: H04L27/12 ,  H04L27/148

CPC classification number: H04L27/148 ,  H04B1/713 ,  H04B3/02 ,  H04L27/12

Abstract: A communication system having a configurable bandpass filter is disclosed. The system includes a bandpass filter and a bandpass controller. The bandpass filter has an adjustable center frequency. The bandpass controller is configured to identify a frequency shift in a master in or received signal and to shift the center frequency of the bandpass filter according to the identified frequency shift.

公开(公告)号：US09965422B2

公开(公告)日：2018-05-08

申请号：US15379838

申请日：2016-12-15

Applicant: Infineon Technologies AG

Inventor： David Levy ,  Harald Witschnig ,  Dirk Hammerschmidt ,  Wolfgang Scherr ,  Andrea Morici

IPC: G06F13/36 ,  G06F13/364 ,  G06F13/42 ,  G06F13/40

CPC classification number: G06F13/364 ,  G06F13/385 ,  G06F13/404 ,  G06F13/42 ,  G06F13/4282

Abstract: A sensor system utilizing adaptively selected carrier frequencies is disclosed. The system includes a system bus, a bus master, and a sensor. The system bus is configured to transfer power and data. The bus master is coupled to the system bus and is configured to provide power to the bus and receive data from the bus. The sensor is coupled to the system bus and is configured to transfer data on the bus using an adaptively selected carrier frequency.

公开(公告)号：US09886660B2

公开(公告)日：2018-02-06

申请号：US15344191

申请日：2016-11-04

Applicant: Infineon Technologies AG

Inventor： Dirk Hammerschmidt ,  Bernhard Goller ,  Gerald Holweg ,  Thomas Herndl

IPC: G06K19/06 ,  G06K19/077 ,  G06K19/073 ,  G06K19/07

CPC classification number: G06K19/07758 ,  G06K19/0704 ,  G06K19/0705 ,  G06K19/0717 ,  G06K19/0723 ,  G06K19/073

Abstract: A semiconductor device includes a semiconductor substrate having an upper first main face and first and second recess areas formed in the upper first main face, a battery arranged at the first recess area and one or more of a shock sensor and an acceleration sensor arranged at the second recess area. The shock sensor or the acceleration sensor includes a movable mass, a cantilever connected to the moveable mass, a piezoelectric layer applied to the cantilever, and a wiring connected to the piezoelectric layer. The wiring has first and second terminals. The moveable mass and part of the cantilever are arranged above the second recess area, so that the shock sensor or the acceleration sensor delivers a voltage between the first and second terminals, a strength of the voltage being dependent on a strength of a shock or acceleration exerted on the semiconductor device.

公开(公告)号：US09882579B2

公开(公告)日：2018-01-30

申请号：US14933349

申请日：2015-11-05

Applicant: Infineon Technologies AG

Inventor： Dirk Hammerschmidt

IPC: H03M5/02 ,  H03M5/22

CPC classification number: H03M5/02 ,  H03M5/22

Abstract: A receiver includes a receiver circuit to receive a first transition in a first direction, a second transition in a second, different direction after the first transition and a third transition in the first transition after the second transition of a signal. A first time period between the first and third transitions is indicative of a datum to be received. The receiver circuit is also configured to determine a second time period between the first transition and a second transition and to determine an additional datum to be received based at least on the determined second time period between the first and second transitions. Using the determined second time period allows for more information to be received in a reliable manner.

公开(公告)号：US09817381B2

公开(公告)日：2017-11-14

申请号：US14867091

申请日：2015-09-28

Applicant: Infineon Technologies AG

Inventor： Dirk Hammerschmidt

IPC: G05B19/042 ,  H04Q9/00 ,  H02M3/335 ,  H03M1/56

CPC classification number: G05B19/0423 ,  H02M3/33515 ,  H03M1/56 ,  H04Q9/00 ,  H04Q2209/80

Abstract: The present disclosure is directed towards a sensor interface module that delivers a supply voltage to a plurality of sensors, and which exchanges data signals between the plurality of sensors and a control unit (e.g., an ECU). The sensor interface often employs a single-bit comparator (or a coarse analog to digital converter (ADC), e.g., a 2-bit or 3-bit ADC) to track signals to be exchanged between the sensors and controller over the sensor interface. Compared to power hungry ADC with more bits (e.g., 32 bit ADC), the single-bit comparator/coarse ADC limits hardware complexity and power consumption. In addition, in some embodiments the sensor interface module can include an estimator and assist comparators to speed up the tracking ability of the sensor interface module. In this way, techniques provided herein facilitate reliable, low-power communication between a control unit (e.g., an ECU) and its corresponding sensors.

公开(公告)号：US20170276520A1

公开(公告)日：2017-09-28

申请号：US15463499

申请日：2017-03-20

Applicant: Infineon Technologies AG

Inventor： Dirk Hammerschmidt

IPC: G01D5/244 ,  G01D5/16

CPC classification number: G01D5/24428 ,  G01D5/16 ,  G01R33/09

Abstract: Embodiments relate to an integrated circuit including a magneto-resistive stack of ferromagnetic and non-magnetic layers formed on a common substrate. The integrated circuit includes at least a first magneto-resistive sensor element provided by a first section of the magneto-resistive stack, at least a second magneto-resistive sensor element provided by a separate second section of the magneto-resistive stack, and a shield element provided by a separate third section of the magneto-resistive stack between the first and the second section. The shield element is configured to operate as an electric shield between the at least one first and the at least one second magneto-resistive sensor elements.

公开(公告)号：US09735992B2

公开(公告)日：2017-08-15

申请号：US15274730

申请日：2016-09-23

Applicant: Infineon Technologies AG

Inventor： Dirk Hammerschmidt ,  Wolfgang Scherr

IPC: H04B14/04 ,  H04L27/156 ,  H04L7/00

CPC classification number: H04L27/1563 ,  G08C19/22 ,  H04B1/16 ,  H04B1/48 ,  H04L7/0087 ,  H04L25/4902

Abstract: A receiver may receive a pulse width encoded signal. The receiver may determine a position of a transition of a pulse of the pulse width encoded signal by oversampling the pulse width encoded signal with respect to a quantization function. The receiver may determine that the position of the transition deviates from an expected position according to the quantization function by more than a predetermined range. The receiver may generate a signal, indicating an unexpected event, based on determining that the position of the transition deviates from the expected position. The receiver may detect an error in a message corresponding to the pulse width encoded signal based on a check value identified from the pulse width encoded signal. The receiver may adjust, based on the signal indicating the unexpected event, a value, corresponding to the position of the transition, to cause the error in the message to be corrected.

公开(公告)号：US20170199056A1

公开(公告)日：2017-07-13

申请号：US15471193

申请日：2017-03-28

Applicant: Infineon Technologies AG

Inventor： Wolfgang Granig ,  Dirk Hammerschmidt ,  Udo Ausserlechner

IPC: G01D5/14 ,  G01D5/165

CPC classification number: G01D5/145 ,  G01D5/165 ,  G01R33/06

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.

公开(公告)号：US09689770B2

公开(公告)日：2017-06-27

申请号：US14333736

申请日：2014-07-17

Applicant: Infineon Technologies AG

Inventor： Dirk Hammerschmidt

IPC: G01L27/00 ,  G01L9/00

CPC classification number: G01L27/005 ,  G01L9/0073

Abstract: A pressure sensor calibration system comprises one or more pressures sensors for calibrating sensor parameters based on a membrane deflection or a membrane displacement from an electrostatic force. A measuring component measures capacitance values corresponding to applied voltages at the electrodes of the one or more pressure sensors. Sensor parameters are derived from capacitance measurements and a pressure measurement, which are utilized by a calibration component for calibration and recalibration of the one or more pressure sensors.