(19)
(11) EP 3 679 750 A2

(12)

(88) Date of publication A3:
11.04.2019

(43) Date of publication:
15.07.2020 Bulletin 2020/29

(21) Application number: 18853876.3

(22) Date of filing: 06.09.2018
(51) International Patent Classification (IPC): 
H04W 64/00(2009.01)
 H04L 12/26(2006.01)
(86) International application number:
PCT/US2018/049683
(87) International publication number:
WO 2019/051040 (14.03.2019 Gazette 2019/11)
(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: 06.09.2017 US 201715697284

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

(72) Inventors:
  • SETH, Manu
    Berkeley, California 94704 (US)
  • KONG, Lingkai
    Palo Alto, California 94306 (US)
  • YLAMURTO, Tommi
    Los Gatos, California 95033 (US)
  • SUBRAMANIAN, Vivek
    Orinda, California 94563 (US)

(74) Representative: Barnfather, Karl Jon 
Withers & Rogers LLP 4 More London Riverside
London SE1 2AU
London SE1 2AU (GB)

   


(54) SYSTEMS AND METHODS FOR COARSE AND FINE TIME OF FLIGHT ESTIMATES FOR PRECISE RADIO FREQUENCY LOCALIZATION IN THE PRESENCE OF MULTIPLE COMMUNICATION PATHS