US 11,856,720 B2
Accessory devices that communicate with electronic devices
Nagarajan Kalyanasundaram, Los Gatos, CA (US); Richard Hung Minh Dinh, Saratoga, CA (US); Amaury J. Heresztyn, Cupertino, CA (US); Frank F. Liang, San Jose, CA (US); Stephen T. Schooley, Menlo Park, CA (US); Lian Zhang, Cupertino, CA (US); and Derek J. Dicarlo, Santa Clara, CA (US)
Assigned to Apple Inc., Cupertino, CA (US)
Filed by Apple Inc., Cupertino, CA (US)
Filed on Jan. 25, 2021, as Appl. No. 17/157,938.
Claims priority of provisional application 63/090,110, filed on Oct. 9, 2020.
Prior Publication US 2022/0117098 A1, Apr. 14, 2022
Int. Cl. H05K 5/02 (2006.01); G05B 15/02 (2006.01); H02J 50/10 (2016.01); H05K 7/20 (2006.01); G08C 17/04 (2006.01)
CPC H05K 5/0217 (2013.01) [G05B 15/02 (2013.01); G08C 17/04 (2013.01); H02J 50/10 (2016.02); H05K 7/20 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A portable electronic device, comprising:
a housing;
a magnetic field sensor configured to detect a magnetic field from a magnetic assembly external to the housing;
processing circuitry electrically coupled to the magnetic field sensor and configured to compare the magnetic field detected by the magnetic field sensor with a predetermined magnetic field, the processing circuitry comprising a circuit;
a wireless communication circuit electrically coupled to the processing circuitry, wherein in response to the processing circuitry determining the magnetic field matches the predetermined magnetic field, within a predetermined tolerance, the wireless communication circuit reads information from an external wireless communication circuit; and
a control system that regulates the circuit to operate in accordance with a first set point temperature, and in response to the information received by the wireless communication circuit, the control system regulates the circuit to operate in accordance with a second set point temperature that is greater than the first set point temperature.