Granted Patent B2

US 12,436,239 · App. 18/597,120 · Granted Oct 7, 2025

Inventors: Bradley Michael Eckert (Palo Alto, CA); Luca Rigazio (Los Gatos, CA); Neal Khosla (Palo Alto, CA); Kiran Joshi (Palo Alto, CA); Lenin Patra (Palo Alto, CA)

Assignee: Koko Home, Inc.

G01S7/417G01S13/723G01S7/352G01S13/0209

Abstract

Claims (55)

1. A method, comprising:

pre-defining a plurality of activities to be detected in an interior room, the activities based on vital signs;

determining a model for each predefined activity based on recorded activity data in a plurality of locations;

forming a virtual array with a plurality of transmit and receive antennas;

beaming with the virtual array, a plurality of radar signals into the interior room;

receiving with the virtual array, radar data including a plurality of radar reflections corresponding to the plurality of radar signals;

processing the plurality of radar reflections to form a plurality of processed radar signals, the processing including noise removal;

determining, at least one activity from the plurality of pre-defined activities by matching the plurality of processed radar signals with one of the determined models; and

determining a notification action to perform in response to the determined at least one activity.

2. The method of claim 1 wherein the processing the plurality of radar reflections comprises:

determining a first movement track of a first moving object in response to the plurality of radar reflections; and

determining a first set of processed radar signals from the plurality of radar reflections in response to the first movement track of the first moving object;

wherein the plurality of processed radar signals comprises the first set of processed radar signals.

3. The method of claim 2 wherein the processing the plurality of radar reflections further comprises:

determining a second movement track of a second moving object in response to the plurality of radar reflections; and

determining a second set of processed radar signals from the plurality of radar reflections in response to the second movement track of the second moving object;

wherein the plurality of processed radar signals further comprises the second set of processed radar signals.

4. The method of claim 1 , wherein the notification action includes providing a behavioral feedback to an individual in response to the determined at least one activity, wherein the feedback modifies a pre-sleep behavior of the individual that affects sleep of the individual when the behavioral feedback is followed by the individual, resulting in an improvement of the sleep of the individual.

5. The method of claim 1 , wherein the notification action is selected from a group including: communicating with a remote server, outputting a sound, controlling a peripheral, turning on a light, unlocking a door, dialing a telephone number, adjusting a thermostat, turning off an appliance, turning off gas service, and turning off water service.

6. The method of claim 1 , further comprising communicating occurrence of the at least one activity to a remote destination.

7. The method of claim 6 , wherein the predefined activities are associated with activities of daily life, falling and sleeping.

8. The method of claim 1 , wherein the notification action comprises establishing a voice connection to a remote location.

9. A computing system, comprising:

a virtual array comprising a plurality of transmit and receive antennas configured to transmit a plurality of radar signals into an interior region and receive radar data including a plurality of radar reflections corresponding to the plurality of radar signals;

a processor coupled to the virtual array wherein the processor is configured to generate a plurality of processed radar signals including noise removal and to determine a model for each predefined activity based on recorded activity data in a plurality of locations;

the processor further configured to determine at least one activity from a plurality of activities that are pre-defined, the plurality of activities based on vital signs, by matching the processed plurality of radar reflections with one of the determined models, the plurality of activities being associated with multiple locations in the interior region; and

the processor further configured to determine a notification action to perform in response to the at least one activity.

10. The computing system of claim 9 ,

wherein the processor is configured to determine a first movement track of a first moving object in response to the plurality of radar reflections;

wherein the processor is configured to determine a first set of processed radar signals from the plurality of radar reflections in response to the first movement track of the first moving object; and

wherein the plurality of processed radar signals comprises the first set of processed radar signals.

11. The computing system of claim 10 ,

wherein the processor is further configured to determine a second movement track of a second moving object in response to the plurality of radar reflections;

wherein the processor is further configured to determine a second set of processed radar signals from the plurality of radar reflections in response to the second movement track of the second moving object; and

wherein the plurality of processed radar signals further comprises the second set of processed radar signals.

12. The computing system of claim 9 ,

wherein the plurality of radar reflections comprises data from multiple objects within the interior region; and

wherein the processor is configured to track an object from the multiple objects within the interior region to determine the plurality of processed radar signals in response to the plurality of radar reflections.

13. The computing system of claim 9 , wherein the notification action is selected from a group including: communicating with a remote server, outputting a sound, controlling a peripheral, turning on a light, unlocking a door, dialing a telephone number, adjusting a thermostat, turning off an appliance, turning off gas service, and turning off water service.

14. A system, comprising:

a virtual array with a plurality of transmit and receive antennas;

at least one processor communicatively coupled to the virtual array; and

a memory device having stored thereon instructions to cause the at least one processor to execute a method comprising

pre-defining a plurality of activities to be detected in an interior region, the activities based on vital signs;

determining a model for each predefined activity based on recorded activity data in a plurality of locations;

causing the virtual array to beam a plurality of radar signals into the interior region and receive reflections corresponding to the plurality of the radar signals;

processing the plurality of radar reflections to form a plurality of processed radar signals including noise removal;

determining at least one activity from the plurality of pre-defined activities by matching the plurality of processed radar signals with one of the determined models; and

determining a notification action to perform in response to the at least one activity.

15. The system of claim 14 , wherein the method further comprises extracting periodic signals from the plurality of radar reflections generated by vital signs.

16. The system of claim 14 , wherein the notification action includes providing a behavioral feedback to an individual in response to the determined at least one activity, wherein the feedback modifies a pre-sleep behavior of the individual that affects sleep of the individual when the behavioral feedback is followed by the individual, resulting in an improvement of the sleep of the individual.

17. The system of claim 14 , wherein the notification action is selected from a group including: communicating with a remote server, outputting a sound, controlling a peripheral, turning on a light, unlocking a door, dialing a telephone number, adjusting a thermostat, turning off an appliance, turning off gas service, and turning off water service.

18. The system of claim 14 , wherein the method further comprises communicating occurrence of the at least one activity to a remote destination.

19. The system of claim 14 , wherein the processing includes feature extraction.

20. The system of claim 14 , wherein the method further comprises forming the virtual array from a plurality of antennas.

Assignments (2)

Continuity (2)

References Cited (254)