Cross-device data synchronization based on simultaneous hotword triggers

A computer program product comprising one or more non-transitory computer-readable storage media having program instructions collectively stored on the one or more non-transitory computer-readable storage media, the program instructions executable to:

• execute a first instance of an automated assistant in an inactive state at least in part on a first computing device operated by a user;
• while in the inactive state, receive, via one or more microphones of the first computing device, first audio data that captures a spoken utterance of the user;
• while in the inactive state, process the first audio data using one or more hotword detection models to generate:
• a first predicted output that indicates a first probability of one or more synchronization hotwords being present in the first audio data, and
• a second predicted output that indicates a second probability of one or more other hotwords being present in the first audio data, wherein the one or more other hotwords are distinct from the synchronization hotwords, and the one or more other hotwords are usable to activate speech recognition or natural language understanding of the automated assistant;
• determine that the first predicted output satisfies a first threshold that is indicative of the one or more synchronization hotwords being present in the first audio data;
• determine that there is a match between an attribute of the user that is identified as a joint secret and stored on each of the first computing device and the second computing device, wherein the determining includes causing the joint secret (i) to be used to generate encrypted data on one of the first and second computing devices and (ii) to be used to decrypt the encrypted data on the other of the first and second computing devices, wherein the joint secret is based on a date of birth of the user, an email address of the user, a phone number of the user, or preferences of the user;
• and
• in response to determining that the first predicted output satisfies the first threshold and that there is a match between the attribute of the user identified as the joint secret, initiate peer-to-peer bidirectional synchronization of configuration data between the first instance of the automated assistant on the first computing device and the second instance of the automated assistant on the second computing device, wherein the bidirectional synchronization occurs at the first computing device and the second computing device.

A system comprising:

• a processor, a computer-readable memory, one or more computer-readable storage media, and program instructions collectively stored on the one or more computer-readable storage media, the program instructions executable to:
• execute a first instance of an automated assistant in an inactive state at least in part on a first computing device operated by a user;
• while in the inactive state, receive, via one or more microphones of the first computing device, first audio data that captures a spoken utterance of the user;
• while in the inactive state, process the first audio data using one or more hotword detection models to generate:
• a first predicted output that indicates a first probability of one or more synchronization hotwords being present in the first audio data, and
• a second predicted output that indicates a second probability of one or more other hotwords being present in the first audio data, wherein the one or more other hotwords are distinct from the synchronization hotwords, and the one or more other hotwords are usable to activate speech recognition or natural language understanding of the automated assistant;
• determine that the first predicted output satisfies a first threshold that is indicative of the one or more synchronization hotwords being present in the first audio data;
• determine that there is a match between an attribute of the user that is identified as a joint secret and stored on each of the first computing device and the second computing device, wherein the determining includes causing the joint secret (i) to be used to generate encrypted data on one of the first and second computing devices and (ii) to be used to decrypt the encrypted data on the other of the first and second computing devices, wherein the joint secret is based on a date of birth of the user, an email address of the user, a phone number of the user, or preferences of the user;
• and
• in response to determining that the first predicted output satisfies the first threshold and that there is a match between the attribute of the user identified as the joint secret, initiate peer-to-peer bidirectional synchronization of configuration data between the first instance of the automated assistant on the first computing device and the second instance of the automated assistant on the second computing device, wherein the bidirectional synchronization occurs at the first computing device and the second computing device.