US 12,135,334 B2
Method for reducing a microbreak memory area and enhanced timing scheme for freezing microbreak feature for a speed sensor
Christoph Schroers, Villach (AT); Simon Hainz, Villach (AT); Alessandro Petri, Villach (AT); and Massimiliano Zilli, Villach (AT)
Assigned to Infineon Technologies AG, Neubiberg (DE)
Filed by Infineon Technologies AG, Neubiberg (DE)
Filed on Jun. 30, 2022, as Appl. No. 17/854,293.
Claims priority of provisional application 63/280,169, filed on Nov. 17, 2021.
Prior Publication US 2023/0152344 A1, May 18, 2023
Int. Cl. G01P 3/487 (2006.01); G01P 3/481 (2006.01)
CPC G01P 3/487 (2013.01) [G01P 3/4815 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A magnetic sensor configured to detect a rotation of an object, comprising:
at least one sensor element configured to generate at least one sensor signal based on a magnetic field that is modulated by the rotation of the object;
a sensor circuit configured to generate a data transmission signal based on the at least one sensor signal, wherein the data transmission signal comprises a plurality of data transmission blocks; and
a memory comprising a transmission block status register configured to store transmission block status information indicative of whether or not one of the plurality of data transmission blocks has been triggered for transmission,
wherein the sensor circuit is configured to:
determine that a data transmission block, of the plurality of data transmission blocks, is about to be transmitted;
detect an interrupt event that disrupts a transmission of the data transmission signal;
determine, based on the transmission block status information, that the data transmission block has been triggered for transmission prior to the interrupt event; and
cause, based on a conclusion of the interrupt event, at least a portion of the data transmission block to be transmitted to avoid a complete loss of the data transmission block due to the detected interrupt event based on the transmission block status information present at a time the interrupt event is detected.