US 11,733,550 B2
Ultraminiature dynamic speaker for a fully in-ear monitor
Chuming Zhao, Redmond, WA (US); Drew Stone Briggs, Seattle, WA (US); Michael Edward Franks, Snoqualmie, WA (US); and Derek Wallin, Monroe, WA (US)
Assigned to Meta Platforms Technologies, LLC, Menlo Park, CA (US)
Filed by Meta Platforms Technologies, LLC, Menlo Park, CA (US)
Filed on Jul. 19, 2022, as Appl. No. 17/868,219.
Application 17/868,219 is a continuation of application No. 17/134,913, filed on Dec. 28, 2020, granted, now 11,422,392.
Claims priority of provisional application 63/087,785, filed on Oct. 5, 2020.
Prior Publication US 2022/0365375 A1, Nov. 17, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. G10K 11/16 (2006.01); G02C 11/00 (2006.01); G02B 27/01 (2006.01); H04R 1/10 (2006.01); G10K 11/178 (2006.01)
CPC G02C 11/10 (2013.01) [G02B 27/0176 (2013.01); G10K 11/17827 (2018.01); H04R 1/1016 (2013.01); G02B 2027/0178 (2013.01); G10K 2210/1081 (2013.01); G10K 2210/506 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An in-ear device comprising:
a transducer configured to output audio content into an ear canal of a user;
a driver assembly configured to drive a diaphragm to produce the audio content;
an external microphone configured to detect sound from a local area of the user; and
an internal microphone configured to detect sound from within the ear canal,
wherein the external microphone is located in a first section of the in-ear device that comprises an external shell located on a first end of the transducer, the transducer is located in a second section of the in-ear device, and the internal microphone is located in a third section of the in-ear device that comprises an internal shell located on a second end of the transducer, each section having a different central axis.