US 11,968,004 B2
Communication between devices during wireless power transfer
Jeffrey D. Louis, Auckland (NZ); and Zaid A. AbuKhalaf, Sunnyvale, CA (US)
Assigned to Apple Inc., Cupertino, CA (US)
Filed by Apple Inc., Cupertino, CA (US)
Filed on Jun. 26, 2023, as Appl. No. 18/341,538.
Application 18/341,538 is a continuation of application No. 17/714,902, filed on Apr. 6, 2022, granted, now 11,736,147.
Application 17/714,902 is a continuation of application No. 17/183,169, filed on Feb. 23, 2021, granted, now 11,329,696, issued on May 10, 2022.
Claims priority of provisional application 63/043,818, filed on Jun. 25, 2020.
Claims priority of provisional application 63/043,711, filed on Jun. 24, 2020.
Prior Publication US 2023/0336211 A1, Oct. 19, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H02J 50/80 (2016.01); H02J 50/12 (2016.01); H04B 5/79 (2024.01); H04L 27/02 (2006.01); H04L 27/10 (2006.01); H02J 50/60 (2016.01)
CPC H04B 5/79 (2024.01) [H02J 50/12 (2016.02); H02J 50/80 (2016.02); H04L 27/02 (2013.01); H04L 27/10 (2013.01); H02J 50/60 (2016.02)] 23 Claims
OG exemplary drawing
 
1. Control circuitry configured to be coupled to a wireless power transfer coil of an electronic device, the control circuitry being further configured to:
initiate a frequency-shift keying communication during which wireless power signals provided to the wireless power transfer coil are modulated between a first frequency and a second frequency that is different than the first frequency;
while transmitting modulation states for the frequency-shift keying communication, determine if amplitude-shift keying modulation of the wireless power signals is present; and
in response to determining the amplitude-shift keying modulation of the wireless power signals is present, abort the frequency-shift keying communication.