IP Library Granted Patent US 12,000,924
Granted Patent B2
US 12,000,924 · App. 17/515,421 · Granted Jun 4, 2024

Systems and methods for noninvasive detection of impermissible objects

Inventors: Hatch Graham (North Bend, WA); Ehsan Afshari (Ann Arbor, MI); Karl Triebes (Kirkland, WA); Ryan Kearny (Kirkland, WA)
Assignee: LASSEN PEAK, INC.
G01S13/887G01S13/89G08B5/22
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Quick Facts
Patent No.
US 12,000,924
App. No.
17/515,421
Granted
Jun 4, 2024
Kind
B2
Abstract

An apparatus comprises a first and second coherent radar system on a first chip configured to operate in a terahertz range to provide a frequency modulated continuous wave, and having a first and second field of view, respectively. The apparatus further comprises a first processor in communication with the first coherent radar system and configured to include instructions to send a first signal to the first coherent radar system to scan a target with the first field of view, and a second processor in communication with the second coherent radar system and configured to collaborate with the first processor, and further configured to include instructions to send a second signal to the second coherent radar system to scan a target within the second field of view.

Claims (47)

1. A method comprising:

scanning, by a first coherent radar system, including a first phased array antenna, on a first chip configured to provide a frequency modulated continuous wave in a terahertz range, a first field of view;

receiving a signal, at a second coherent radar system, including a second phased array antenna, on a second chip configured to provide a frequency modulated continuous wave in the terahertz range, to initiate a scan in a second field of view, the signal being based on the scanning by the first coherent radar system;

scanning, in the terahertz range, the second field of view;

transmitting, to a central management area, a data set based on the scanning of the first field of view and the second field of view;

determining, based on at least one of the scanning of the first field of view or the second field of view, whether an object exists on a target;

creating a user alert in response to the object being determined to exist on the target.

2. The method of claim 1 , wherein the terahertz range is between 0.1 THz and 1 THz, inclusive.

3. The method of claim 2 , further comprising:

receiving, at the first coherent radar system, an activation signal to activate a scan mode of the first field of view;

wherein the activation signal is based on a detection event, the detection event including at least one of a human form determined to be within the first field of view a motion detected in the first field of view; a sound detected within an audio reception distance of the first coherent radar system, a predetermined time occurring, or a signal received from an external source.

4. The method of claim 3 , wherein the data set includes at least one of metadata or image data.

5. The method of claim 2 wherein the user alert includes at least one of an alarm, a rendered image representation of the object, or a rendered image representation of the target.

6. The method of claim 5 , further comprising:

receiving the data set; and

logging the received data set.

7. A method comprising:

scanning, by a coherent radar system that includes a phased array antenna on a chip that provides a frequency modulated continuous wave to scan in a terahertz range, a target;

determining, at a processor in communication with the coherent radar system, whether the target is moving within a field of view of the coherent radar system;

reorienting, in response to the determining whether a target is moving within the field of view, the coherent radar system to keep the target within the field of view;

creating a scanning data set based on the scanning;

determining, based on the scanning data set, whether an object is present on the target;

transmitting an alert signal to create a user alert in response to the determining whether an object is present on the target.

8. The method of claim 7 , wherein the terahertz range is between 0.1 THz and 1 THz, inclusive.

9. The method of claim 7 , wherein the alert signal is sent to a central management area for at least one of storage or processing.

10. The method of claim 7 , wherein the alert signal is configured to render an image on a user device.

11. The method of claim 7 , further comprising determining when the target enters the field of view.

12. The method of claim 7 , further comprising determining whether if the target has left the field of view.

13. The method of claim 12 , wherein the coherent radar system is a first coherent radar system on a first chip, and wherein the phased array antenna is a first phased array antenna, and further comprising:

scanning, by a second coherent radar system, including a second phased array antenna, on a second chip configured to scan in the terahertz range, the target.

14. The method of claim 13 , further comprising:

sending, to a central management area, a first data set based on the scanning by the first radar system;

sending, to the central management area, a second data set based on the scanning by the second coherent radar system;

activating an alert, the alert being based on at least one of the first data set or the second data set.

15. An apparatus comprising:

a first coherent radar system, including a first phased array antenna, on a first chip configured to operate in a terahertz range to provide a frequency modulated continuous wave, and having a first field of view;

a second coherent radar system, including a second phased array antenna, on a second chip configured to operate the terahertz range to provide a frequency modulated continuous wave, and having a second field of view;

a first processor in communication with the first coherent radar system and configured to include instructions to:

send a first signal to the first coherent radar system to scan a target with the first field of view;

a second processor in communication with the second coherent radar system and configured to collaborate with the first processor, and further configured to include instructions to:

send a second signal to the second coherent radar system to scan a target within the second field of view.

16. The apparatus of claim 15 , wherein the terahertz range is between 0.1 THz and 1 THz, inclusive.

17. The apparatus of claim 16 , wherein the first signal is based on a detection event, the detection event including at least one of a human form determined to be within the first field of view of the coherent radar system, a motion detected in the first field of view of the coherent radar system; a sound detected within an audio reception distance of the coherent radar system, a predetermined time occurring, or a signal received from an external source.

18. The apparatus of claim 17 , wherein the first processor is further configured to send a data set to at least one of the second processor or a central management area.

19. The apparatus of claim 18 , further comprising:

a housing containing at least one of the first coherent radar system and second coherent radar system; and

a gimbal configured to move the housing such that the target remains within at least one of the first field of view and the second field of view.

Assignments (2)
SECURITY INTEREST Recorded Nov 4, 2025
From: LASSEN PEAK, INC.
To: OCEAN II PLO LLC
Reel/Frame 072781/0196 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 30, 2021
From: GRAHAM, HATCH; AFSHARI, EHSAN; TRIEBES, KARL; KEARNY, RYAN
To: LASSEN PEAK, INC.
Reel/Frame 057970/0873 →
Continuity (4)
Continuation In Part 17472156 · Sep 10, 2021
Provisional Application 63143880 · Jan 31, 2021
Provisional Application 63134373 · Jan 6, 2021
Related Publication 20220214447A1 · Jul 7, 2022