US 12,293,872 B2
Magnetic structure with multiple opposing poles on a surface for use with magnetically sensitive components
Afshin Partovi, Palo Alto, CA (US)
Assigned to Mojo Mobility Inc., Sunnyvale, CA (US)
Filed by Mojo Mobility Inc., Palo Alto, CA (US)
Filed on Nov. 9, 2021, as Appl. No. 17/522,367.
Application 17/522,367 is a continuation of application No. 17/492,083, filed on Oct. 1, 2021.
Application 17/492,083 is a continuation of application No. 16/538,452, filed on Aug. 12, 2019, granted, now 11,283,306.
Application 16/538,452 is a continuation of application No. 14/556,760, filed on Dec. 1, 2014, granted, now 10,714,986, issued on Jul. 14, 2020.
Application 14/556,760 is a continuation of application No. 13/708,838, filed on Dec. 7, 2012, granted, now 8,901,881, issued on Dec. 2, 2014.
Application 13/708,838 is a continuation of application No. 13/158,134, filed on Jun. 10, 2011, granted, now 8,890,470, issued on Nov. 18, 2014.
Claims priority of provisional application 61/478,015, filed on Apr. 21, 2011.
Claims priority of provisional application 61/387,895, filed on Sep. 29, 2010.
Claims priority of provisional application 61/354,114, filed on Jun. 11, 2010.
Prior Publication US 2022/0255369 A1, Aug. 11, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H02J 50/90 (2016.01); H01F 7/02 (2006.01); H02J 7/00 (2006.01); H02J 50/12 (2016.01); H02J 50/40 (2016.01); H02J 50/70 (2016.01); H02J 50/80 (2016.01); H02J 50/00 (2016.01)
CPC H01F 7/0252 (2013.01) [H02J 7/00034 (2020.01); H02J 7/0044 (2013.01); H02J 50/12 (2016.02); H02J 50/402 (2020.01); H02J 50/70 (2016.02); H02J 50/80 (2016.02); H02J 50/90 (2016.02); H01F 7/0247 (2013.01); H02J 50/005 (2020.01)] 39 Claims
OG exemplary drawing
 
1. An electronic device having an inductive charger for charging a second electronic device inductively, the electronic device comprising:
a camera;
a compass;
a rechargeable battery configured to power the inductive charger of the electronic device to charge the second electronic device; and
a first permanent magnetic structure configured for aligning the electronic device with a protective cover and for creating a separable magnetic attachment between the electronic device and the protective cover,
wherein the first permanent magnetic structure defines a substantially flat first surface and a substantially flat second surface,
wherein the first permanent magnetic structure comprises more than three magnetic sections arranged in a linear configuration, with each of the magnetic sections in the first permanent magnetic structure magnetized in a direction perpendicular to the first and second surfaces of the first permanent magnetic structure,
wherein the first permanent magnetic structure generates magnetic flux densities having substantially similar magnitudes relative to the first and second surfaces as a function of distance from the first and second surfaces, respectively, along an axis that runs perpendicular to the first and second surfaces, and
wherein adjacent magnetic sections are magnetized in opposing directions such that the first permanent magnetic structure does not impair normal operation of the camera, the compass, and the inductive charger in the electronic device.