US 10,461,866 C2 (13,231st)
Linearized optical digital-to-analog modulator
Yossef Ehrlichman, Nazareth Ilit (IL); Ofer Amrani, Tel Aviv (IL); and Shlomo Ruschin, Herzliya (IL)
Filed by Ramot at Tel-Aviv University Ltd., Tel-Aviv (IL)
Assigned to RAMOT AT TEL-AVIV UNIVERSITY LTD., Tel-Aviv (IL)
Reexamination Request No. 90/015,280, Aug. 29, 2023.
Reexamination Certificate for Patent 10,461,866, issued Oct. 29, 2019, Appl. No. 16/386,391, Apr. 17, 2019.
Reexamination Certificate C1 10,461,866, issued Jul. 6, 2023.
Application 90/015,280 is a continuation of application No. 16/234,635, filed on Dec. 28, 2018, granted, now 10,270,535.
Application 16/234,635 is a continuation of application No. 15/298,373, filed on Oct. 20, 2016, granted, now 10,205,527.
Application 15/298,373 is a continuation of application No. 14/922,165, filed on Oct. 25, 2015, granted, now 9,479,191.
Application 14/922,165 is a continuation of application No. 14/662,343, filed on Mar. 19, 2015, granted, now 9,203,425.
Application 14/662,343 is a continuation of application No. 14/325,486, filed on Jul. 8, 2014, granted, now 9,031,417.
Application 14/325,486 is a continuation of application No. 13/280,371, filed on Oct. 25, 2011, granted, now 8,797,198.
Application 13/280,371 is a continuation of application No. 12/636,805, filed on Dec. 14, 2009, granted, now 8,044,835.
Ex Parte Reexamination Certificate issued on Apr. 8, 2026.
Int. Cl. H03M 1/00 (2006.01); G02F 1/01 (2006.01); G02F 1/225 (2006.01); G02F 7/00 (2006.01); H03M 1/70 (2006.01); H04B 10/25 (2013.01); H04B 10/2575 (2013.01); H04B 10/50 (2013.01); H04B 10/516 (2013.01); H04B 10/54 (2013.01); H04B 10/556 (2013.01); G02F 1/015 (2006.01); G02F 1/21 (2006.01)
CPC H04B 10/516 (2013.01) [G02F 1/0121 (2013.01); G02F 1/225 (2013.01); G02F 7/00 (2013.01); H03M 1/002 (2013.01); H03M 1/70 (2013.01); H04B 10/2575 (2013.01); H04B 10/25891 (2020.05); H04B 10/505 (2013.01); H04B 10/541 (2013.01); H04B 10/556 (2013.01); G02F 1/015 (2013.01); G02F 1/212 (2021.01); G02F 2203/19 (2013.01); H04B 10/5055 (2013.01)]
OG exemplary drawing
AS A RESULT OF REEXAMINATION, IT HAS BEEN DETERMINED THAT:
The patentability of claims 7, 8, 10-12, 19, 20 and 22-24 is confirmed.
Claims 1-6, 9, 13-18 and 21 were not reexamined.
7. A method for converting digital electrical data into one or more modulated optical streams using a modulation system, said method comprising:
inputting into a digital to digital converter coupled to an electrically controllable optical modulator N bits of a digital data word, N being larger than 1;
using the digital to digital converter for mapping a set of N input values corresponding to the N bits of digital data word to a digital drive vector corresponding to M drive voltage values where M is larger than N;
coupling the drive voltage values corresponding to the digital drive vector to the electrically controllable optical modulator, enabled to modulate by pulse modulation one or more unmodulated input optical signals, responsively to the drive voltage values, to provide one or more pulse modulated output optical signals.