US 12,248,064 B2
Augmented reality glasses topology using ultrasonic handshakes on frames
Dongeek Shin, Santa Clara, CA (US); Adarsh Prakash Murthy Kowdle, San Francisco, CA (US); Jingying Hu, Menlo Park, CA (US); and Andrea Colaco, Los Altos, CA (US)
Assigned to GOOGLE LLC, Mountain View, CA (US)
Filed by GOOGLE LLC, Mountain View, CA (US)
Filed on Feb. 15, 2022, as Appl. No. 17/651,152.
Prior Publication US 2023/0258798 A1, Aug. 17, 2023
Int. Cl. G01S 15/10 (2006.01); G06F 3/03 (2006.01); G02B 27/01 (2006.01)
CPC G01S 15/104 (2013.01) [G06F 3/03 (2013.01); G02B 27/017 (2013.01); G02B 2027/0178 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
in response to a control signal, generating an audio signal by a first audio device included in a first portion of a head mounted computing device;
determining a first time associated with a peak of a first pulse associated with the audio signal;
detecting the audio signal by a second audio device included in a second portion of the head mounted computing device;
determining a second time associated with a peak of a second pulse associated with the detected audio signal;
estimating a distance between the first portion and the second portion based on a difference between the first time and the second time;
estimating an angle between one of the first portion or the second portion and a third portion of the head mounted computing device based on the difference between the first time and the second time;
determining a frame configuration of the head mounted computing device based on the estimated distance and the estimated angle; and
triggering an action using the head mounted computing device based on the frame configuration.