US 11,714,286 B1
Accessory for head-mountable device
Darshan R. Kasar, San Francisco, CA (US)
Assigned to APPLE INC., Cupertino, CA (US)
Filed by Apple Inc., Cupertino, CA (US)
Filed on Feb. 5, 2021, as Appl. No. 17/169,258.
Claims priority of provisional application 63/006,627, filed on Apr. 7, 2020.
Int. Cl. G02B 27/01 (2006.01)
CPC G02B 27/0176 (2013.01) [G02B 27/0172 (2013.01); G02B 2027/0187 (2013.01); G02B 2027/0192 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A system comprising:
a head-mountable device comprising:
a frame;
an arm configured to secure the frame to a head of a user;
a display element;
a communication interface;
a controller; and
an attachment element;
a first accessory device comprising a battery for performing a first function comprising transferring power to the head-mountable device, wherein the battery is operably connected to the controller when the first accessory device is attached to the attachment element; and
a second accessory device comprising an accessory component for performing a second function, different than the first function, wherein the accessory component is operably connected to the controller when the second accessory device is attached to the attachment element,
wherein the controller is configured to:
when the first accessory device is connected to the head-mountable device, operate the display element at a first resolution and operate the communication interface to perform enhanced communication with an external device; and
when the first accessory device is not connected to the head-mountable device, operate the display element at a second resolution, lower than the first resolution, and operate the communication interface to perform reduced communication with the external device.