Patent ID: 11915711
Assignee: DIRECT CURSUS TECHNOLOGY L.L.C
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A computer-implemented method for determining an association between a human assessor and a given audio feed reproduced by an electronic device, the method comprising:
capturing an in-use audio signal having been generated in a vicinity of the electronic device in response to reproducing the given audio feed;
determining presence of an identity water mark associated with the human assessor in the in-use audio signal,
the identity watermark having been generated based on an indication of identity of the human assessor, the indication of identity being representable by a unique sequence of bits;
a respective value of a given bit of the unique sequence of bits having been indicated, in the given audio feed, by modifying respective energy levels of an original audio signal associated therewith at at least two different frequency levels,
the respective value of the given bit being a binary value;

determining the respective value of the given bit including:
determining a respective primary energy level of the in-use audio signal at each one of the at least two different frequency levels;
determining a respective secondary energy level of the in-use audio signal at a respective adjacent frequency level to each one of the at least two different frequency levels;
determining, for each one of the at least two different frequency levels, a respective difference value between the respective primary energy level and the respective secondary energy level of the in-use audio signal;
aggregating respective difference values associated with the at least two different frequency levels to determine an aggregate difference value associated with the given bit, the aggregating comprising:
determining a first aggregate value as a sum over respective difference values associated with those of the at least two different frequency levels at which respective primary energy levels are indicative of the respective value of the given bit being ‘1’;
determining a second aggregate value as a sum over respective difference values associated with those of the at least two different frequency levels at which respective primary energy levels are indicative of the respective value of the given bit being ‘0’;
determining the aggregate difference value as being a difference between the first aggregate value and the second aggregate value;

determining, based on the aggregate difference value, a respective value of the given bit for inclusion thereof in an in-use sequence of bits associated with the in-use audio signal, the determining comprising:
determining the respective value as being 1′ if the aggregate difference value is a positive value; and
determining the respective value as being ‘0’ if the aggregate difference value is a non-positive value; and

in response to the in-use sequence of bits corresponding to the unique sequence of bits associated with the human assessor, determining the presence of the identity watermark in the in-use audio signal, thereby determining the given audio feed as having been personalized for the human assessor for transmission thereto for completion one or more digital tasks based on appreciation of the given audio feed.