Patent ID: 11922949
Assignee: AMAZON TECHNOLOGIES, INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 1:
2. The device of claim 1, further comprising:
a memory buffer accessible to the central processing unit;
a down sampler configured to:
receive audio data generated by the microphone at a first sampling rate, wherein the audio data corresponds to the second audio; and
generate the second input data by down sampling the audio data using a second sampling rate; and

a digital signal processor configured to:
receive the second input data in the second power mode;
detect a wake word based on the second input data; and
store, in the memory buffer, the second input data,

wherein the central processing unit is further configured to:
receive, from the memory buffer, the second input data in the first power mode; and
perform an action based on the second input data.