US 12,422,448 B2
Stall detection for autoloader axes
Nicholas Newberg, Vista, CA (US); Prentash Djelosevic, Vista, CA (US); and Aaron Alan Stearrett, Vista, CA (US)
Assigned to Leica Biosystems Imaging, Inc., Vista, CA (US)
Appl. No. 17/309,700
Filed by Leica Biosystems Imaging, Inc., Vista, CA (US)
PCT Filed Aug. 6, 2020, PCT No. PCT/US2020/045258
§ 371(c)(1), (2) Date Jun. 15, 2021,
PCT Pub. No. WO2021/026383, PCT Pub. Date Feb. 11, 2021.
Claims priority of provisional application 62/883,581, filed on Aug. 6, 2019.
Prior Publication US 2022/0349909 A1, Nov. 3, 2022
Int. Cl. G01N 35/04 (2006.01); G01N 35/00 (2006.01)
CPC G01N 35/04 (2013.01) [G01N 35/00029 (2013.01); G01N 2035/00039 (2013.01); G01N 2035/0465 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A digital slide scanning apparatus, comprising:
a motor configured to generate a load resistance value when moving a glass slide during a process;
one or more hardware processors configured to:
monitor the load resistance value during the process,
compare the load resistance value to a predetermined threshold resistance value, the predetermined threshold resistance value corresponding to a pressure that is less than a pressure to break the glass slide, and
control the motor to stop movement of the glass slide in response to determining that the load resistance value exceeds the predetermined threshold resistance value,
wherein the load resistance value is defined by a difference between a first location of the motor and a second location of the motor, wherein the first location is an actual location of the motor and the second location is a calculated location of the motor.