(19)
(11) EP 4 816 839 A1

(12)

(43) Date of publication:
07.10.2026 Bulletin 2026/41

(21) Application number: 24898602.8

(22) Date of filing: 25.11.2024
(51) International Patent Classification (IPC): 
G01R 31/58(2020.01)
B06B 1/02(2006.01)
 G01R 31/67(2020.01)
H04B 17/00(2015.01)
(52) Cooperative Patent Classification (CPC):
G01R 31/54; G01R 31/52; G01R 31/11
(86) International application number:
PCT/US2024/057343
(87) International publication number:
WO 2025/117476 (05.06.2025 Gazette 2025/23)
(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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA
Designated Validation States:
GE KH MA MD TN

(30) Priority: 30.11.2023 US 202318525384

(71) Applicant: Teradyne, Inc.
North Reading, MA 01864 (US)

(72) Inventors:
  • GOHEL, Tushar
    Winchester, Massachusetts 01890 (US)
  • FARRER, Zachary
    Boston, Massachusetts 02115 (US)
  • DESJARDIN, Daniel
    Grafton, Massachusetts 01560 (US)

(74) Representative: Fish & Richardson P.C. 
Highlight Business Towers Mies-van-der-Rohe-Straße 8
80807 München
80807 München (DE)

   


(54) INJECTING VIBRATIONS TO DETECT A FAULT IN A TRANSMISSION LINE