Systems and methods of ultrasonic sensing in smart devices

A method, comprising:

• at an electronic device having memory, one or more processors, a speaker, and a microphone:
• while audibly communicating with a user via the speaker and microphone:
• sending one or more ultrasound pulses via the speaker;
• receiving, via the microphone, one or more signals corresponding to the one or more ultrasound pulses;
• and
• determining positioning of the user based on the one or more received signals.

An electronic device, comprising:

• one or more processors;
• memory coupled to the one or more processors;
• a microphone;
• a speaker;
• and
• one or more programs stored in the memory and configured for execution by the one or more processors, the one or more programs comprising instructions for:
• while audibly communicating with a user via the speaker and microphone:
• sending one or more ultrasound pulses via the speaker;
• receiving, via the microphone, one or more signals corresponding to the one or more ultrasound pulses;
• and
• determining positioning of the user based on the one or more received signals

A non-transitory computer-readable storage medium storing one or more programs, the one or more programs comprising instructions which, when executed by an electronic device with one or more processors, memory, a microphone, and a speaker, cause the electronic device to perform operations comprising:

• while audibly communicating with a user via the speaker and microphone:
• sending one or more ultrasound pulses via the speaker;
• receiving, via the microphone, one or more signals corresponding to the one or more ultrasound pulses;
• and
• determining positioning of the user based on the one or more received signals