Patent ID: 11925447
Assignee: AMAZON TECHNOLOGIES, INC.
Field: Medical technology (Instruments)
Classification: CPC A  G | IPC A  G

Claim 4:
5. The monitoring device of claim 1, wherein the first zone is associated with a respiratory zone of the first user and the operations further comprise:
identifying a location within the first zone, wherein the location corresponds to a subset of radar signals having a highest relative signal strength of a historical radar signal set associated with the first zone;
determining a first angle diverging from the radar sensor of the monitoring device, wherein the first angle having a first angle value determined by adding a first offset angle value to a value representing an orientation of an axis of the monitoring device that is aligned with the location within the first zone associated with the respiratory zone; and
determining a second angle diverging from the monitoring device, wherein the second angle having a second angle value determined by adding a second offset angle value to the first angle value, wherein the first angle value and the second angle value define the second zone.