Decomposition of composite signals
AssigneeAnalog Devices, Inc.
InventorIlker BAYRAM
Life of this patent
Estimating the term…
Abstract
Disclosed herein are example systems and approaches for decomposition of composite signals. Decomposition of the composite signals may include derivation of two or more signals from the composite signals. An upper envelope and lower envelope may be determined for a composite signal in accordance with a smoothness parameter. A smooth estimate may be produced based on the upper envelope and the lower envelope, where the smooth estimate provides an estimate for a smooth component of the composite signal, which may be more accurate than legacy approaches.
Claims20
One or more computer-readable media having instructions stored thereon, wherein the instructions, when executed by a device, cause the device to:
- produce an upper envelope for a composite signal;
- produce a lower envelope for the composite signal;
- and
- produce a smooth estimate for a smooth component of the composite signal, the smooth estimate to be located between the upper envelope and the lower envelope.
A method for decomposition of a composite signal, comprising:
- obtaining the composite signal for decomposition;
- producing an upper envelope based on the composite signal, the upper envelope meeting a smoothness criteria;
- producing a lower envelope based on the composite signal, the lower envelope meeting the smoothness criteria;
- and
- producing a smooth estimate of a smooth component of the composite signal, the smooth estimate located between the upper envelope and the lower envelope.
A vital monitor system, comprising:
- a sensor to:
- sense vital signs of an individual;
- and
- generate a composite signal based on the vital signs;
- and
- a device coupled to the sensor, the device to:
- obtain the composite signal from the sensor;
- produce an upper envelope based on the composite signal in accordance with a smoothness parameter;
- produce a lower envelope based on the composite signal in accordance with the smoothness parameter;
- and
- produce a smooth estimate for a smooth component of the composite signal, wherein the smooth estimate is to be located between the upper envelope and the lower envelope, and wherein the smooth estimate corresponds to a vital sign of the vital signs.
Dependencies are inferred from the claim text.