公开(公告)号：US20200318999A1

公开(公告)日：2020-10-08

申请号：US16904157

申请日：2020-06-17

Applicant: Infineon Technologies AG

Inventor： Lorenzo COCEANI ,  Bernhard FORSTER

IPC: G01D5/244 ,  G01K1/00

Abstract: A sensor device includes a two-pin current interface including an input pin configured to draw an input current and an output pin configured to output an output current, a sensor configured to generate a measurement signal, and a current modulator configured to generate a current pulse as the output current such that the output current toggles between at least two main current states based on the measurement signal. The current modulator is configured to modulate the output current such that the output current is increased, to a first current level greater than the at least two main current states, at an initial phase of the current pulse for a first duration, and to modulate the output current such that the output current is decreased, to a second level less than the at least two main current states, at a terminal phase of the current pulse for a second duration.

公开(公告)号：US20220107338A1

公开(公告)日：2022-04-07

申请号：US17064195

申请日：2020-10-06

Applicant: Infineon Technologies AG

Inventor： Johannes GUETTINGER ,  Bernhard FORSTER ,  Simon HAINZ

IPC: G01P21/02 ,  H04W24/08 ,  G01P3/44

Abstract: A monitoring device of a sensor may obtain a first signal at a point on a first branch of a signal path of the sensor. The monitoring device may obtain a second signal at a point on a second branch of the signal path of the sensor and may monitor the first signal for first characteristics indicated by the first signal. The monitoring device may monitor the second signal for second characteristics indicated by the second signal. The monitoring device may determine whether a quantity of first characteristics indicated by the first signal without a particular quantity of second characteristics being indicated by the second signal reaches a threshold quantity of first characteristics. The monitoring device may assess functionality of the signal path based on whether the quantity of first characteristics indicated by the first signal without a particular quantity of second characteristics being indicated by the second signal reaches the threshold quantity of first characteristics.