US 11,818,535 B2
Loudspeaker with reduced audio coloration caused by reflections from a surface
Martin E. Johnson, Los Gatos, CA (US); Simon K. Porter, San Jose, CA (US); Suzanne Hardy, San Jose, CA (US); and John H. Sheerin, Santa Clara, CA (US)
Assigned to Apple, Inc., Cupertino, CA (US)
Filed by Apple, Inc., Cupertino, CA (US)
Filed on Feb. 17, 2022, as Appl. No. 17/651,563.
Application 17/651,563 is a continuation of application No. 16/822,474, filed on Mar. 18, 2020, granted, now 11,290,805.
Application 16/822,474 is a continuation of application No. 15/513,955, filed on Mar. 23, 2017.
Application 16/822,474 is a continuation of application No. PCT/US2015/053025, filed on Sep. 29, 2015, granted, now 10,652,650, issued on May 12, 2020.
Claims priority of provisional application 62/057,992, filed on Sep. 30, 2014.
Prior Publication US 2022/0174399 A1, Jun. 2, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04R 1/28 (2006.01); H04R 1/40 (2006.01); H04R 1/02 (2006.01); H04R 1/26 (2006.01); H04R 3/14 (2006.01)
CPC H04R 1/2811 (2013.01) [H04R 1/02 (2013.01); H04R 1/025 (2013.01); H04R 1/26 (2013.01); H04R 1/2803 (2013.01); H04R 1/288 (2013.01); H04R 1/403 (2013.01); H04R 3/14 (2013.01); H04R 2201/401 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An electronic device, comprising:
an array of tweeters;
a cabinet enclosing the array of tweeters and defining one or more acoustic channels configured to direct sounds generated by the array of tweeters out of the cabinet, wherein the one or more acoustic channels are defined by horns that redirect the sounds generated by the array of tweeters to sound output openings of the cabinet; and
a baseplate supporting the cabinet, a surface of the baseplate cooperating with a surface of the cabinet to define a sound radiation area through which sounds generated by the array of tweeters pass after exiting the cabinet.