The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 29, 2021
Filed:
Sep. 02, 2020
Apple Inc., Cupertino, CA (US);
Sorin V. Dusan, San Jose, CA (US);
Raghunandan K. Pai, Cupertino, CA (US);
Scott Lopatin, San Francisco, CA (US);
Tommy Rochette, San Jose, CA (US);
Navin Bindiganavile Suparna, Cupertino, CA (US);
Emmanuel Lalande, San Francisco, CA (US);
Siva Ganesh Movva, Cupertino, CA (US);
Robert Watson, Santa Clara, CA (US);
Scott Grinker, Belmont, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
Systems, methods, devices and non-transitory, computer-readable storage mediums are disclosed for location-tracking wireless devices. In an embodiment, a method performed by an electronic device comprises: playing, or initiating the playing of, a sound through a loudspeaker of an accessory device via a communication link. The sound is played at a specified frequency that utilizes a frequency response of the loudspeaker (or loudspeaker plus speaker enclosure). The sound is received through two or more microphones of the electronic device and filtered by one or more filters. The one or more filters are configured to pass the sound at or around the specified frequency and to reduce masking of the sound by ambient noise. The filtered sound is associated with direction data generated from sensor data provided by one or more inertial sensors of the electronic device. In another embodiment, the specified frequency is higher than the maximum human hearing range.