US 12,422,326 B2
Method for determining calibrated values of atmospheric pressure and related electronic apparatus
Enri Duqi, Milan (IT); Patrick Fedeli, Senago (IT); Nicolo' Manca, Turin (IT); and Silvia Adorno, Novate Milanese (IT)
Assigned to STMICROELECTRONICS S.r.l., Agrate Brianza (IT)
Filed by STMICROELECTRONICS S.r.l., Agrate Brianza (IT)
Filed on Feb. 15, 2023, as Appl. No. 18/169,818.
Claims priority of application No. 102022000003803 (IT), filed on Mar. 1, 2022.
Prior Publication US 2023/0314257 A1, Oct. 5, 2023
Int. Cl. G01L 27/00 (2006.01); H02J 50/10 (2016.01)
CPC G01L 27/005 (2013.01) [H02J 50/10 (2016.02)] 20 Claims
OG exemplary drawing
 
1. A method, comprising:
determining a first and a second calibrated value of atmospheric pressure by an electronic apparatus including a fixed device and at least a first and a second movable barometer operatively couplable to the fixed device, the fixed device being a charging dock-station for electric charging, of wireless and induction type, of the first and the second movable barometer;
in a first operative condition of the electronic apparatus, preventing the electric charging by the fixed device by electromagnetically decoupling at least one of the first and the second movable barometer from the fixed device; and
in a second operative condition of the electronic apparatus charging by the fixed device by physically contacting and electromagnetically coupling the first and the second movable barometers with the fixed device;
determining, by a main control unit coupled to the electronic apparatus, whether the electronic apparatus is in the second operative condition;
if the electronic apparatus is in the second operative condition,
acquiring by the main control unit a first measured value of atmospheric pressure through the first movable barometer;
acquiring by the main control unit a second measured value of atmospheric pressure through the second movable barometer; and
acquiring a reference value of atmospheric pressure at a common reference point of the fixed device of the electronic apparatus, the first and the second movable barometers being, in the second operative condition, at first and second height differences with respect to the common reference point;
calculating, by the main control unit, a first pressure difference as a function of the first measured value and of the reference value, and a second pressure difference as a function of the second measured value and of the reference value; and
when the electronic apparatus switches from the second operative condition to the first operative condition:
acquiring, by the main control unit, a new first measured value of atmospheric pressure through the first movable barometer and a new second measured value of atmospheric pressure through the second movable barometer; and
determining, by the main control unit, said first calibrated value as a function of the new first measured value and of the first pressure difference, and said second calibrated value as a function of the new second measured value and of the second pressure difference.