(19)
(11) EP 4 816 979 A1

(12)

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

(21) Application number: 24938073.4

(22) Date of filing: 27.11.2024
(51) International Patent Classification (IPC): 
G06N 10/00(2022.01)
G06F 7/523(2006.01)
G06E 3/00(2006.01)
G02B 6/12(2006.01)
G06F 9/50(2006.01)
B82Y 20/00(2011.01)
(52) Cooperative Patent Classification (CPC):
B82Y 20/00; G06E 3/00; G06N 10/00; G06E 3/001; G06N 3/0675; G06N 10/70; G06N 3/067; G06N 10/40; G06E 3/005; B82Y 10/00
(86) International application number:
PCT/US2024/057825
(87) International publication number:
WO 2025/230574 (06.11.2025 Gazette 2025/45)
(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: 28.11.2023 US 202363603397 P

(71) Applicant: NTT Research, Inc.
Sunnyvale, CA 94085 (US)

(72) Inventors:
  • NG, Edwin
    Sunnyvale, CA 94085 (US)
  • YANAGIMOTO, Ryotatsu
    Sunnyvale, CA 94085 (US)

(74) Representative: Barker Brettell LLP 
100 Hagley Road Edgbaston
Birmingham, West Midlands B16 8QQ
Birmingham, West Midlands B16 8QQ (GB)

   


(54) QUANTUM NON-DEMOLITION MEASUREMENT OF OPTICAL MULTIPLY-AND-ACCUMULATE OPERATIONS