IP Library › Granted Patent US 12,401,134
Granted Patent B2
US 12,401,134 · App. 17/505,019 · Granted Aug 26, 2025

Embedded downlight and radar system

Inventors: Ho Chun Lee (Yuen Long, HK); Chung Hong Wong (Ma On Shan, HK)
Assignee: Infineon Technologies AG
H01Q21/065G01S13/325G01S13/524G01S13/87G01S13/931H01Q25/008
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 12,401,134
App. No.
17/505,019
Granted
Aug 26, 2025
Kind
B2
Abstract

In an embodiment, a downlight includes: a plurality of light emitting diodes (LEDs) disposed in a housing of the downlight, and a millimeter-wave radar. The millimeter-wave radar includes: an antenna disposed in the housing, a controller configured to: detect a presence of a human in a field-of-view of the millimeter-wave radar, determine a direction of movement of the detected human, and produce log data based on the direction of movement of the detected human, and a wireless module configured to transmit the log data to a wireless server.

Claims (71)

1. A method comprising:

detecting a presence of a human in a field-of-view of a millimeter-wave radar embedded in a housing of a downlight;

determining a direction of movement of the detected human using the millimeter-wave radar;

producing log data based on the direction of movement of the detected human; and

transmitting the log data to a server using a wireless transmission channel.

2. The method of claim 1 , further comprising:

receiving log data from a plurality of downlights, the plurality of downlights comprising the downlight;

determining a number of humans inside a building based on the log data from the plurality of downlights; and

controlling a brightness of light produced by the plurality of downlights based on the determined number of humans inside the building.

3. The method of claim 2 , further comprising dimming the downlights when the determined number of humans inside the building drops below a threshold.

4. The method of claim 2 , further comprising controlling an operation of an air conditioner of the building based on the determined number of humans inside the building.

5. The method of claim 1 , further comprising:

receiving data from a pressure sensor located at a window or door of a building; and

controlling a brightness of light produced by the downlight based on the data received from the pressure sensor.

6. The method of claim 1 , wherein the wireless transmission channel is based on a low-power wide-area network (LPWAN) protocol.

7. The method of claim 1 , wherein the millimeter-wave radar is implemented in a monostatic configuration.

8. The method of claim 1 , wherein the millimeter-wave radar is implemented in a bistatic configuration.

9. The method of claim 1 , wherein detecting the presence of a human comprises:

determining a range to an object in the field-of-view of the millimeter-wave radar; and

detecting the presence of the human when the range to the object increases by an average height of a human.

10. The method of claim 9 , wherein determining the direction of movement of the detected human comprises:

when the range to the object increases by a first value smaller than the average height of the human, determining the direction of movement as a first direction; and

when the range to the object decreases by a second value smaller than the average height of the human, determining the direction of movement as a second direction, the second direction being opposite to the first direction.

11. The method of claim 10 , further comprising determining whether the detected human is entering or exiting a building based on the determined direction.

12. The method of claim 9 , further comprising determining an age of the detected human based on the range.

13. The method of claim 1 , wherein detecting the presence of a human comprises:

transmitting radar signals with the millimeter-wave radar;

receiving reflected radar signals with the millimeter-wave radar;

determining a Doppler frequency change between transmitted radar signals and the received reflected radar signals; and

detecting the presence of the human when the Doppler frequency change is higher than a predetermined threshold.

14. The method of claim 13 , wherein determining the direction of movement of the detected human comprises:

when the Doppler frequency is higher than a transmission frequency of the transmission radar signals, determining the direction of movement as a first direction; and

when the Doppler frequency is lower than the transmission frequency, determining the direction of movement as a second direction, the second direction being opposite to the first direction.

15. The method of claim 1 , wherein the millimeter-wave radar performs the determination of the direction of movement of the detected human.

16. The method of claim 1 , further comprising:

transmitting a plurality of radar signals at different strengths using the millimeter-wave radar without having a human in the field-of-view of the millimeter-wave radar;

receiving first reflected radar signals associated with the plurality of radar signals transmitted at different strengths; and

selecting one of the different strengths based on the first reflected radar signals.

17. The method of claim 16 , further comprising:

transmitting radar signals at the selected one strength using the millimeter-wave radar with a human in the field-of-view of the millimeter-wave radar;

receiving second reflected radar signals associated with the radar signals transmitted at the selected one strength; and

determining a threshold for determining whether the presence of the human is detected based on the second reflected radar signals.

18. A method comprising:

receiving log data from a plurality of downlights via a wireless transmission channel, wherein the log data comprises data based on a direction of movement of a human detected by a millimeter-wave radar embedded within a housing of at least one downlight of the plurality of downlights;

determining a number of humans inside a building based on the log data from the plurality of downlights; and

controlling a brightness of light produced by the plurality of downlights based on the determined number of humans inside the building.

19. The method of claim 18 , further comprising dimming the downlights when the determined number of humans inside the building drops below a threshold.

20. The method of claim 19 , further comprising controlling an operation of an air conditioner of the building based on the determined number of humans inside the building.

21. The method of claim 18 , wherein the wireless transmission channel is based on a low-power wide-area network (LPWAN) protocol.

22. A downlight comprising:

a housing;

an illumination device configured to produce visual light;

a millimeter-wave radar device embedded in the housing of the downlight;

a wireless communication device;

a controller configured to:

detect a presence of a human in a field-of-view of the millimeter-wave radar device embedded in the housing of the downlight using the millimeter-wave radar device;

determine a direction of movement of the detected human using the millimeter-wave radar device;

produce log data based on the direction of movement of the detected human; and

transmit the log data to a server via a wireless transmission channel using the wireless communication device.

23. The downlight of claim 22 , wherein the controller is further configured to:

determine a range to an object in the field-of-view of the millimeter-wave radar device; and

detect the presence of the human when the range to the object increases by an average height of a human.

24. The downlight of claim 23 , wherein the controller is further configured to:

when the range to the object increases by a first value smaller than the average height of the human, determine the direction of movement as a first direction; and

when the range to the object decreases by a second value smaller than the average height of the human, determine the direction of movement as a second direction, the second direction being opposite to the first direction.

25. The downlight of claim 24 , wherein the controller is further configured to determine whether the detected human is entering or exiting a building based on the determined direction.

26. The downlight of claim 22 , wherein:

the millimeter-wave radar device is further configured to:

transmit a plurality of radar signals at different strengths using the millimeter-wave radar without having a human in the field-of-view of the millimeter-wave radar device, and

receive first reflected radar signals associated with the plurality of radar signals transmitted at different strengths; and

the controller is further configured to select one of the different strengths based on the first reflected radar signals.

Continuity (2)
Division 16130507 · Sep 13, 2018
Related Publication 20220037801A1 · Feb 3, 2022
References Cited (219)
US 4241347A · Albanese et al. · 1980 [cited by applicant]
US 6147572A · Kaminski et al. · 2000 [cited by applicant]
US 6304178B1 · Hayashida · 2001 [cited by applicant]
US 6414631B1 · Fujimoto · 2002 [cited by applicant]
US 6636174B2 · Arikan et al. · 2003 [cited by applicant]
US 7048973B2 · Sakamoto et al. · 2006 [cited by applicant]
US 7057564B2 · Tsai et al. · 2006 [cited by applicant]
US 7171052B2 · Park · 2007 [cited by applicant]
US 7317417B2 · Arikan et al. · 2008 [cited by applicant]
US 7474258B1 · Arikan et al. · 2009 [cited by applicant]
US 7596241B2 · Rittscher et al. · 2009 [cited by applicant]
US 7692574B2 · Nakagawa · 2010 [cited by applicant]
US 7873326B2 · Sadr · 2011 [cited by applicant]
US 7889147B2 · Tam et al. · 2011 [cited by applicant]
US 8089394B2 · Stewart et al. · 2012 [cited by applicant]
US 8223067B2 · Moulton et al. · 2012 [cited by applicant]
US 8228382B2 · Pattikonda · 2012 [cited by applicant]
US 8497805B2 · Rofougaran et al. · 2013 [cited by applicant]
US 8659369B2 · Rofougaran et al. · 2014 [cited by applicant]
US 8731502B2 · Salle et al. · 2014 [cited by applicant]
US 8836596B2 · Richards et al. · 2014 [cited by applicant]
US 8847814B2 · Himmelstoss et al. · 2014 [cited by applicant]
US 8860532B2 · Gong et al. · 2014 [cited by applicant]
US 8976061B2 · Chowdhury · 2015 [cited by applicant]
US 9172132B2 · Kam et al. · 2015 [cited by applicant]
US 9182476B2 · Wintermantel · 2015 [cited by applicant]
US 9202105B1 · Wang et al. · 2015 [cited by applicant]
US 9413079B2 · Kamgaing et al. · 2016 [cited by applicant]
US 9495600B2 · Heu et al. · 2016 [cited by applicant]
US 9714797B2 · Groot et al. · 2017 [cited by applicant]
US 9886095B2 · Pothier · 2018 [cited by applicant]
US 9935065B1 · Baheti et al. · 2018 [cited by applicant]
US 10775482B2 · Santra et al. · 2020 [cited by applicant]
US 20020030623A1 · Arikan et al. · 2002 [cited by applicant]
US 20030164790A1 · Kurita et al. · 2003 [cited by applicant]
US 20030179127A1 · Wienand · 2003 [cited by applicant]
US 20040178942A1 · McLemore · 2004 [cited by applicant]
US 20040238857A1 · Beroz et al. · 2004 [cited by applicant]
US 20060001572A1 · Gaucher et al. · 2006 [cited by applicant]
US 20060049995A1 · Imaoka et al. · 2006 [cited by applicant]
US 20060067456A1 · Ku et al. · 2006 [cited by applicant]
US 20070210959A1 · Herd et al. · 2007 [cited by applicant]
US 20080106460A1 · Kurtz et al. · 2008 [cited by applicant]
US 20080238759A1 · Carocari et al. · 2008 [cited by applicant]
US 20080238762A1 · Gumas · 2008 [cited by applicant]
US 20080291115A1 · Doan et al. · 2008 [cited by applicant]
US 20080308917A1 · Pressel et al. · 2008 [cited by applicant]
US 20090073026A1 · Nakagawa · 2009 [cited by applicant]
US 20090085815A1 · Jakab et al. · 2009 [cited by applicant]
US 20090153428A1 · Rofougaran et al. · 2009 [cited by applicant]
US 20090315761A1 · Walter et al. · 2009 [cited by applicant]
US 20100207805A1 · Haworth · 2010 [cited by applicant]
US 20110299433A1 · Darabi et al. · 2011 [cited by applicant]
US 20120068876A1 · Bangera et al. · 2012 [cited by applicant]
US 20120087230A1 · Guo et al. · 2012 [cited by applicant]
US 20120092284A1 · Rofougaran et al. · 2012 [cited by applicant]
US 20120105267A1 · DeLia et al. · 2012 [cited by applicant]
US 20120116231A1 · Liao et al. · 2012 [cited by applicant]
US 20120195161A1 · Little et al. · 2012 [cited by applicant]
US 20120206339A1 · Dahl · 2012 [cited by applicant]
US 20120265486A1 · Klofer et al. · 2012 [cited by applicant]
US 20120268314A1 · Kuwahara et al. · 2012 [cited by applicant]
US 20120280900A1 · Wang et al. · 2012 [cited by applicant]
US 20130027240A1 · Chowdhury · 2013 [cited by applicant]
US 20130106673A1 · McCormack et al. · 2013 [cited by applicant]
US 20130113647A1 · Sentelle et al. · 2013 [cited by applicant]
US 20140028542A1 · Lovitt et al. · 2014 [cited by applicant]
US 20140070994A1 · Schmalenberg et al. · 2014 [cited by applicant]
US 20140145883A1 · Baks et al. · 2014 [cited by applicant]
US 20140316261A1 · Lux et al. · 2014 [cited by applicant]
US 20140324888A1 · Xie et al. · 2014 [cited by applicant]
US 20150035440A1 · Spero · 2015 [cited by applicant]
US 20150061926A1 · Ranney et al. · 2015 [cited by applicant]
US 20150181840A1 · Tupin, Jr. et al. · 2015 [cited by applicant]
US 20150185316A1 · Rao et al. · 2015 [cited by applicant]
US 20150212198A1 · Nishio et al. · 2015 [cited by applicant]
US 20150243575A1 · Strothmann et al. · 2015 [cited by applicant]
US 20150277569A1 · Sprenger et al. · 2015 [cited by applicant]
US 20150325925A1 · Kamgaing et al. · 2015 [cited by applicant]
US 20150346820A1 · Poupyrev et al. · 2015 [cited by applicant]
US 20150348821A1 · Iwanaga et al. · 2015 [cited by applicant]
US 20150364816A1 · Murugan et al. · 2015 [cited by applicant]
US 20160018511A1 · Nayyar et al. · 2016 [cited by applicant]
US 20160041617A1 · Poupyrev · 2016 [cited by applicant]
US 20160041618A1 · Poupyrev · 2016 [cited by applicant]
US 20160061942A1 · Rao et al. · 2016 [cited by applicant]
US 20160061947A1 · Patole et al. · 2016 [cited by applicant]
US 20160098089A1 · Poupyrev · 2016 [cited by applicant]
US 20160103213A1 · Ikram et al. · 2016 [cited by applicant]
US 20160109566A1 · Liu et al. · 2016 [cited by applicant]
US 20160118353A1 · Ahrens et al. · 2016 [cited by applicant]
US 20160135655A1 · Ahn et al. · 2016 [cited by applicant]
US 20160146931A1 · Rao et al. · 2016 [cited by applicant]
US 20160146933A1 · Rao et al. · 2016 [cited by applicant]
US 20160178730A1 · Trotta et al. · 2016 [cited by applicant]
US 20160187462A1 · Altus et al. · 2016 [cited by applicant]
US 20160191232A1 · Subburaj et al. · 2016 [cited by applicant]
US 20160195856A1 · Spero · 2016 [cited by applicant]
US 20160200276A1 · Diewald · 2016 [cited by applicant]
US 20160223651A1 · Kamo et al. · 2016 [cited by applicant]
US 20160240907A1 · Haroun · 2016 [cited by applicant]
US 20160249133A1 · Sorensen · 2016 [cited by applicant]
US 20160252607A1 · Saboo et al. · 2016 [cited by applicant]
US 20160259037A1 · Molchanov et al. · 2016 [cited by applicant]
US 20160266233A1 · Mansour · 2016 [cited by applicant]
US 20160269815A1 · Liao et al. · 2016 [cited by applicant]
US 20160291130A1 · Ginsburg et al. · 2016 [cited by applicant]
US 20160299215A1 · Dandu et al. · 2016 [cited by applicant]
US 20160306034A1 · Trotta et al. · 2016 [cited by applicant]
US 20160320852A1 · Poupyrev · 2016 [cited by applicant]
US 20160320853A1 · Lien et al. · 2016 [cited by applicant]
US 20160327633A1 · Kumar et al. · 2016 [cited by applicant]
US 20160334502A1 · Ali et al. · 2016 [cited by applicant]
US 20160349845A1 · Poupyrev et al. · 2016 [cited by applicant]
US 20170033062A1 · Liu et al. · 2017 [cited by applicant]
US 20170045607A1 · Bharadwaj et al. · 2017 [cited by applicant]
US 20170052618A1 · Lee et al. · 2017 [cited by applicant]
US 20170054449A1 · Mani et al. · 2017 [cited by applicant]
US 20170060254A1 · Molchanov et al. · 2017 [cited by applicant]
US 20170070952A1 · Balakrishnan et al. · 2017 [cited by applicant]
US 20170074974A1 · Rao et al. · 2017 [cited by applicant]
US 20170074980A1 · Adib et al. · 2017 [cited by applicant]
US 20170090014A1 · Subburaj et al. · 2017 [cited by applicant]
US 20170090015A1 · Breen et al. · 2017 [cited by applicant]
US 20170115377A1 · Giannini et al. · 2017 [cited by applicant]
US 20170131395A1 · Reynolds et al. · 2017 [cited by applicant]
US 20170139036A1 · Nayyar et al. · 2017 [cited by applicant]
US 20170139043A1 · Takada · 2017 [cited by applicant]
US 20170141453A1 · Waelde et al. · 2017 [cited by applicant]
US 20170170947A1 · Yang · 2017 [cited by applicant]
US 20170176574A1 · Eswaran et al. · 2017 [cited by applicant]
US 20170192847A1 · Rao et al. · 2017 [cited by applicant]
US 20170201019A1 · Trotta · 2017 [cited by applicant]
US 20170212597A1 · Mishra · 2017 [cited by applicant]
US 20170364160A1 · Malysa et al. · 2017 [cited by applicant]
US 20180011182A1 · Sud · 2018 [cited by applicant]
US 20180046255A1 · Rothera et al. · 2018 [cited by applicant]
US 20180074173A1 · Trotta et al. · 2018 [cited by applicant]
US 20180101239A1 · Yin et al. · 2018 [cited by applicant]
US 20180106897A1 · Shouldice et al. · 2018 [cited by applicant]
US 20180120420A1 · McMahon et al. · 2018 [cited by applicant]
US 20180159244A1 · Tzuang · 2018 [cited by examiner]
US 20180192544A1 · Reynov · 2018 [cited by examiner]
US 20180192919A1 · Nakayama et al. · 2018 [cited by applicant]
US 20190196004A1 · Zhao et al. · 2019 [cited by applicant]
CN 1463161A · 2003 [cited by applicant]
CN 1716695A · 2006 [cited by applicant]
CN 101490578A · 2009 [cited by applicant]
CN 101585361A · 2009 [cited by applicant]
CN 102788969A · 2012 [cited by applicant]
CN 102967854A · 2013 [cited by applicant]
CN 103529444A · 2014 [cited by applicant]
CN 203950036U · 2014 [cited by applicant]
CN 104482466A · 2015 [cited by applicant]
CN 108131642A · 2018 [cited by applicant]
DE 102008054570A1 · 2010 [cited by applicant]
DE 102011100907A1 · 2012 [cited by applicant]
DE 102011075725A1 · 2012 [cited by applicant]
DE 102014118063A1 · 2015 [cited by applicant]
EP 1732247A1 · 2006 [cited by applicant]
GB 2247799A · 1992 [cited by applicant]
JP 2001174539A · 2001 [cited by applicant]
JP 2004198312A · 2004 [cited by applicant]
JP 2006234513A · 2006 [cited by applicant]
JP 2008029025A · 2008 [cited by applicant]
JP 2008089614A · 2008 [cited by applicant]
JP 2009069124A · 2009 [cited by applicant]
JP 2011529181A · 2011 [cited by applicant]
JP 2012112861A · 2012 [cited by applicant]
JP 2013521508A · 2013 [cited by applicant]
JP 2014055957A · 2014 [cited by applicant]
KR 20090063166A · 2009 [cited by applicant]
KR 20140082815A · 2014 [cited by applicant]
WO 2007060069A1 · 2007 [cited by applicant]
WO 2009129232A1 · 2009 [cited by applicant]
WO 2013009473A2 · 2013 [cited by applicant]
WO 2016033361A1 · 2016 [cited by applicant]
WO 2017151682A1 · 2017 [cited by applicant]
Chen, Xiaolong et al., “Detection and Extraction of Target with Micromotion in Spiky Sea Clutter via Short-Time Fractional Fourier Transform”, IEEE Transactions on Geoscience and Remote Sensing, vol. 52, No. 2, Feb. 201… [cited by applicant]
Chen, Xiaolong et al., “Detection and Extraction of Marine Target with Micromotion via Short-Time Fractional Fourier Transform in Sparse Domain,” IEEE International Conference on Signal Processing, Communications and Co… [cited by applicant]
Chuanhua, Du, “FMCW Radar Range-Doppler Processing and Beam Formation Technology,” Chinese Doctoral Dissertations & Master's Theses Full Text Database (Masters)—Information Science and Technology Series, China National … [cited by applicant]
Cree Smartcast Technology, “Wireless LED Lighting Controls”, Oct. 16, 2014, 12 pages. [cited by applicant]
Current, Powered by GE, “Wireless Integrated Thread Sensor” WIT100, Apr. 26, 2018, 2 pages. [cited by applicant]
Damashek, Jonathan “Elevator Installers and Repairers are Among Construction Occupations with Highest Injury Rate”, HKD Hecht, Kleeger & Damashek, Legal Blog, Mar. 24, 2015, 7 pages. [cited by applicant]
Deacon, Peter et al., “Frequency Modulated Continuous Wave (FMCW) Radar,” Design Team 6 Technical Lecture, Nov. 9, 2011, 27 pages. [cited by applicant]
Diederichs, Kailtyn et al., “Wireless Biometric Individual Identification Utilizing Millimeter Waves”, IEEE Sensors Letters, vol. 1, No. 1, IEEE Sensors Council 3500104, Feb. 2017, 4 pages. [cited by applicant]
Dooring Alert Systems, “Riders Matter,” http:\\dooringalertsystems.com, printed Oct. 4, 2017, 16 pages. [cited by applicant]
Filippelli, Mario et al., “Respiratory dynamics during laughter,” J Appl Physiol, (90), 1441-1446, Apr. 2001, http://iap.physiology.org/content/jap/90/4/1441.full.pdf. [cited by applicant]
Fox, Ben, “The Simple Technique That Could Save Cyclists' Lives,” https://www.outsideonline.com/2115116/simple-technique-could-save-cyclists-lives, Sep. 19, 2016, 6 pages. [cited by applicant]
GE Daintree, “Wired & Wireless Controls” Managing your environment, current, powered by GE, Aug. 3, 2018, 8 pages. [cited by applicant]
Gu, Changzhan et al., “Assessment of Human Respiration Patterns via Noncontact Sensing Using Doppler Multi-Radar System”, Sensors Mar. 2015, 15(3), 6383-6398, doi: 10.3390/s150306383, 17 pages. [cited by applicant]
Guercan, Yalin “Super-resolution Algorithms for Joint Range-Azimuth-Doppler Estimation in Automotive Radars,” Technische Universitet Delft, TUDelft University of Technology Challenge the Future, Jan. 25, 2017, 72 pages. [cited by applicant]
Inac, Ozgur et al., “A Phased Array RFIC with Built-In Self-Test Capabilities,” IEEE Transactions on Microwave Theory and Techniques, vol. 60, No. 1, Jan. 2012, 10 pages. [cited by applicant]
Infineon, Product Brief, BGT24LTR11, “Ultra-low power sensing using new generation of 24GHz radar”, Aug. 2018, 2 pages. [cited by applicant]
Infineon, “Using BGT24MTR11 in Low Power Applications”, BGT24MTR11, 24 Ghz Radar, RF and Protection Devices, Application Note AN341, Revision: Rev. 1.0, Dec. 2, 2013, 25 pages. [cited by applicant]
Kizhakkel, V., “Pulsed Radar Target Recognition Based on Micro-Doppler Signatures Using Wavelet Analysis”, A Thesis, Graduate Program in Electrical and Computer Engineering, Ohio State University, Jan. 2013-May 2013, 11… [cited by applicant]
Kuehnke, Lutz, “Phased Array Calibration Procedures Based on Measured Element Patterns,” 2001 Eleventh International Conference on Antennas and Propagation, IEEE Conf., Publ. No. 480, Apr. 17-20, 2001, 4 pages. [cited by applicant]
Lim, Soo-Chul et al., “Expansion of Smartwatch Touch Interface from Touchscreen to Around Device Interface Using Infrared Line Image Sensors,” Sensors 2015, ISSN 1424-8220, vol. 15, 16642-16653, doi:10.3390/s150716642, … [cited by applicant]
Lin, Jau-Jr et al., “Design of an FMCW radar baseband signal processing system for automotive application,” SpringerPlus a SpringerOpen Journal, (2016) 5:42, http://creativecommons.org/licenses/by/4.0/, DOI 10.1186/s400… [cited by applicant]
Wikipedia, “A low-power wide area network (LPWAN) or low-power wide-area (LPWA) network or low-power network (LPN)”, https://en.wikipedia.org/wiki/LPWAN, Jul. 22, 2018, 3 pages. [cited by applicant]
Microwave Journal Frequency Matters, “Single-Chip 24 GHz Radar Front End,” Infineon Technologies AG, www.microwavejournal.com/articles/print/21553-single-chip-24-ghz-radar-front-end, Feb. 13, 2014, 2 pages. [cited by applicant]
Nanzer, Jeffrey A., “Millimeter-Wave Interferometric Angular Velocity Detection”, IEEE Transactions on Microwave Theory and Techniques, vol. 58, No. 12, Dec. 2010, 9 pages. [cited by applicant]
Richards, Mark A., “Fundamentals of Radar Signal Processing,” McGraw Hill Electronic Engineering, ISBN: 0-07-144474-2, Jun. 2005, 93 pages. [cited by applicant]
Santra, Avik et al., “Short-Range Millimetric-Wave Radar System for Occupancy Sensing Application”, Sensor Applications, vol. 1, No. 3, Jul. 2017, 4 pages. [cited by applicant]
Schroff, Florian et al., “FaceNet: A Unified Embedding for Face Recognition and Clustering,” CVF, CVPR2015, IEEE Computer Society Conference on Computer Vision and Pattern Recognition; Mar. 12, 2015, pp. 815-823. [cited by applicant]
Tanis, S., “Automotive Radar Sensors and Congested Radio Spectrum: An Urban Electronic Battlefield?”, Analog Devices, Analog Dialogue, Jul. 2018, 5 pages. [cited by applicant]
Simon, W., et al., “Highly Integrated KA-Band Tx Frontend Module Including 8×8 Antenna Array,” IMST GmbH, Germany, Asia Pacific Microwave Conference, Dec. 7-10, 2009, 63 pages. [cited by applicant]
Chen, J. et al., Solution Brief, Current powered by GE, “Turn Existing Street Lights Into Actionable Data Sources and Revenue Streams”, Jul. 2015, 4 pages. [cited by applicant]
Solutions, “Electronic Article Surveillance Plus”, http://www.nefits.com/html/EAS%20plus.html. [cited by applicant]
Stimmel, C. L. et al., Gigaom Research, “Smart Building Automation and the Enterprise Internet of Things”, Feb. 2015, 16 pages. [cited by applicant]
Suleymanov, Suleyman, “Design and Implementation of an FMCW Radar Signal Processing Module for Automotive Applications,” Master Thesis, University of Twente, Aug. 31, 2016, 61 pages. [cited by applicant]
Texas Instruments, “Programming Chirp Parameters in TI Radar Devices”, Application Report SWRA553—May 2017, 15 pages. [cited by applicant]
Texas Instruments, “XWR1xxx Power Management Optimizations—Low Cost LC Filter Solution”, Application Report SWRA577—Oct. 2017, 19 pages. [cited by applicant]
Thayananthan, T. et al., “Intelligent target recognition using micro-Doppler radar signatures,” Defence R&D Canada, Radar Sensor Technology III, Proc. of SPIE, vol. 7308, 730817, Dec. 9, 2009, 11 pages. [cited by applicant]
Thayaparan, T. et al., “Micro-Doppler Radar Signatures for Intelligent Target Recognition,” Defence Research and Development Canada, Technical Memorandum, DRDC Ottawa TM 2004-170, Sep. 2004, 73 pages. [cited by applicant]
Wilder, Carol N., et al., “Respiratory patterns in infant cry,” Canada Journal of Speech, Human Communication Winter, 1974-75, http://cjslpa.ca/files/1974_HumComm_Vol_01/No_03_2-60/Wilder_Baken_HumComm_1974.pdf, pp. 18-… [cited by applicant]
Infineon, XDPL8105—Digital Flyback Controller IC:, XDP digital power, Sep. 28, 2016, 33 pages. [cited by applicant]
Infineon, XDP LED-XDPL8105, “Digital flyback controller IC for LED drivers”, Nov. 2016, 2 pages. [cited by applicant]
Xin, Qin et al., “Signal Processing for Digital Beamforming FMCW SAR,” Hindawi Publishing Corporation, Mathematical Problems in Engineering, vol. 2014, Article ID 859890, http://dx.doi.org/10.1155/2014/859890, 11 pages. [cited by applicant]