Identifying electronic devices in a room using a spread code

A system, comprising:

• a memory;
• and
• at least one processor coupled to the memory and configured to:
• receive, at a location, a spread spectrum signal from a first electronic device over an audio data channel;
• despread the spread spectrum signal based on a spreading code;
• determine a time of receipt of the spread spectrum signal based on the despreading;
• receive a time of transmission of the spread spectrum signal;
• calculate an airtime delay associated with the first electronic device based on the time of receipt and the time of transmission;
• determine a direction of the first electronic device from the system based on the spread spectrum signal from the first electronic device and beam forming techniques;
• and
• adjust, for the location, playback of audiovisual content at the first electronic device based on the airtime delay associated with the first electronic device and the direction of the first electronic device.

A non-transitory computer-readable medium having instructions stored thereon that, when executed by at least one computing device, cause the at least one computing device to perform operations comprising:

• receiving, at the at least one computing device at a location, a spread spectrum signal from a first electronic device over an audio data channel;
• despreading the spread spectrum signal based on a spreading code;
• determining a time of receipt of the spread spectrum signal based on the despreading;
• receiving a time of transmission of the spread spectrum signal;
• calculating an airtime delay associated with the first electronic device based on the time of receipt and the time of transmission;
• determining a direction of the first electronic device from the at least one computing device based on the spread spectrum signal from the first electronic device and beam forming techniques;
• and
• adjusting, for the location, playback of audiovisual content at the first electronic device based on the airtime delay associated with the first electronic device and the direction of the first electronic device.