(19)
(11) EP 3 928 118 A1

(12)

(43) Date of publication:
29.12.2021 Bulletin 2021/52

(21) Application number: 20759578.6

(22) Date of filing: 12.02.2020
(51) International Patent Classification (IPC): 
G01S 5/02(2010.01)
(52) Cooperative Patent Classification (CPC):
G01S 5/0278; G01S 5/0289
(86) International application number:
PCT/US2020/017857
(87) International publication number:
WO 2020/172014 (27.08.2020 Gazette 2020/35)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME
Designated Validation States:
KH MA MD TN

(30) Priority: 24.02.2019 US 201916283780

(71) Applicant: Locix Inc.
San Bruno CA 94066 (US)

(72) Inventors:
  • YLAMURTO, Tommi
    Los Gatos, California 95033 (US)
  • SETH, Manu
    Berkeley, California 94704 (US)
  • KONG, Lingkai
    Palo Alto, California 94306 (US)
  • DEY, Sourav
    San Francisco, California 94080 (US)
  • BA, Demba
    Cambridge, MA 02139 (US)

(74) Representative: Barnfather, Karl Jon 
Withers & Rogers LLP 2 London Bridge
London SE1 9RA
London SE1 9RA (GB)

   


(54) SYSTEMS AND METHODS FOR PRECISE RADIO FREQUENCY LOCALIZATION USING TIME SWEEP TIME DIFFERENCE OF ARRIVAL