(19)
(11) EP 4 508 753 A1

(12)

(43) Date of publication:
19.02.2025 Bulletin 2025/08

(21) Application number: 23726179.7

(22) Date of filing: 28.04.2023
(51) International Patent Classification (IPC): 
H03M 1/06(2006.01)
H03M 1/74(2006.01)
 H03M 1/08(2006.01)
(52) Cooperative Patent Classification (CPC):
H03M 1/0614; H03M 1/0863; H03M 1/742
(86) International application number:
PCT/IB2023/054467
(87) International publication number:
WO 2023/218283 (16.11.2023 Gazette 2023/46)
(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:
KH MA MD TN

(30) Priority: 10.05.2022 US 202217741139
10.05.2022 US 202217741152

(71) Applicant: Ciena Corporation
Hanover, MD 21076 (US)

(72) Inventors:
  • BABAEE, Ramin
    Ottawa, Ontario K2K 0L1 (CA)
  • BOUCHARD, Martin
    Ottawa, Ontario K1N 7M7 (CA)
  • OVEIS GHARAN, Shahab
    Ottawa, Ontario K2K 0L1 (CA)

(74) Representative: Dehns 
10 Old Bailey
London EC4M 7NG
London EC4M 7NG (GB)

   


(54) DIGITAL-TO-ANALOG CONVERTER (DAC) ARCHITECTURE OPTIMIZATION AND DISTORTION PRE-COMPENSATION