Prosecution Insights
Last updated: April 19, 2026
Application No. 18/539,574

OPTICAL TRANSMISSION DEVICE, OPTICAL TRANSMISSION SYSTEM, AND OPTICAL TRANSMISSION METHOD

Non-Final OA §102
Filed
Dec 14, 2023
Examiner
BELLO, AGUSTIN
Art Unit
2635
Tech Center
2600 — Communications
Assignee
NEC Corporation
OA Round
1 (Non-Final)
75%
Grant Probability
Favorable
1-2
OA Rounds
2y 8m
To Grant
88%
With Interview

Examiner Intelligence

Grants 75% — above average
75%
Career Allow Rate
679 granted / 901 resolved
+13.4% vs TC avg
Moderate +12% lift
Without
With
+12.1%
Interview Lift
resolved cases with interview
Typical timeline
2y 8m
Avg Prosecution
24 currently pending
Career history
925
Total Applications
across all art units

Statute-Specific Performance

§101
2.7%
-37.3% vs TC avg
§103
39.9%
-0.1% vs TC avg
§102
45.5%
+5.5% vs TC avg
§112
8.9%
-31.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 901 resolved cases

Office Action

§102
DETAILED ACTION Notice of Pre-AIA or AIA Status The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . Claim Rejections - 35 USC § 102 In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. The following is a quotation of the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: A person shall be entitled to a patent unless – (a)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale, or otherwise available to the public before the effective filing date of the claimed invention. Claim(s) 1-14 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Takemura (Publication No.: US 2023/0268994 A1). Regarding claim 1, 13, Takemura teaches An optical transmission device to be used in an optical transmission system in which a band of an optical fiber transmission path constituted of one optical fiber is shared by a plurality of users by using a wavelength multiplexed signal acquired by wavelength-multiplexing a plurality of optical signals, the optical transmission device comprising: an optical monitor (reference numeral 100 in Figure 1) configured to output, for each wavelength associated with and allocated to each of the plurality of users, alarm information related to each of the plurality of optical signals; and a management circuit (reference numeral 130 in Figure 1) configured to transmit the alarm information for each wavelength being output from the optical monitor, to only a user with whom the wavelength is associated (e.g. “respond to a request signal including an identifying code” as in paragraph [0029] and/or “with respect to each user associated with the ID number and the password” as in paragraph [0033]). Regarding claim 2, 14, Takemura teaches The optical transmission device according to claim 1, wherein the alarm information is notified, based on user information indicating correspondence between wavelengths of the plurality of optical signals and information of the plurality of users, to only a user who uses the wavelength (e.g. “respond to a request signal including an identifying code” as in paragraph [0029] and/or “with respect to each user associated with the ID number and the password” as in paragraph [0033]). Regarding claim 3, Takemura teaches The optical transmission device according to claim 2, wherein the user information includes: wavelength information (e.g. “sub-band signal information” as in paragraph [0033]) indicating correspondence between wavelengths of the plurality of optical signals and identifiers for identifying the plurality of users (e.g. “user names” as in paragraph [0033]); and address information (e.g. “password” as in paragraph [0033]) indicating correspondence between the identifier and a transmission destination of the alarm information for each of the identifiers. Regarding claim 4, Takemura teaches The optical transmission device according to claim 3, wherein the optical monitor (reference numeral 100 in Figure 3) outputs the alarm information to the management circuit, based on the wavelength information, and the management circuit notifies, based on the address information, the alarm information to only a user who uses the wavelength among the plurality of users (e.g. “sub-band signal information with respect to each user is not read by another user” as in paragraph [0034]). Regarding claim 5, Takemura teaches The optical transmission device according to claim 4, wherein the optical monitor (reference numeral 100 in Figure 1) includes a plurality of optical channel monitors each of which is associated with the plurality of users on a one-to-one basis (e.g. by virtue of “sweeping an optical bandpass filter by using a wavelength slot” as in paragraph [0026]), and the plurality of optical channel monitors output the alarm information of the optical signal having a wavelength allocated to the associated user (e.g. “sub-bands are allocated to users” as in paragraph [0025]). Regarding claim 6, Takemura teaches The optical transmission device according to claim 2, wherein the management circuit notifies, based on the user information, the alarm information to only a user who uses the wavelength (e.g. “sub-band signal information with respect to each user is not read by another user” as in paragraph [0034]) . Regarding claim 7, 9, Takemura teaches The optical transmission device according to claim 1, further comprising a multiplexer (reference numeral 1200 in Figure 5) configured to wavelength-multiplex the plurality of optical signals and output the wavelength-multiplexed optical signals to the optical fiber transmission path, wherein the optical monitor (reference numeral 100 in Figure 1) outputs the alarm information of the plurality of optical signals being output from the multiplexer (e.g. as illustrated in Figure 3). Regarding claim 8, 12, Takemura teaches The optical transmission device according to claim 1, further comprising a demultiplexer (reference numeral 1200 in Figure 5 by virtue of “transmits/receives” as in paragraph [0010] and “reception side” as in paragraph [0055]) configured to output the plurality of optical signals acquired by wavelength-demultiplexing the plurality of optical signals received from the optical fiber transmission path, wherein the optical monitor outputs the alarm information of the plurality of optical signals being input to the demultiplexer (e.g. as illustrated in Figure 3). Regarding claim 10, Takemura teaches The optical transmission system according to claim 9, further comprising an operation support system (e.g. “EMS” as in paragraph [0029] and throughout) configured to be installed for each of the plurality of users and receive the alarm information being output by the management circuit. Regarding claim 11, Takemura teaches The optical transmission system according to claim 9, wherein the optical fiber transmission path is any of optical fibers included in one fiber pair (e.g. “optical fiber” as in paragraph [0003] and throughout) . Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to AGUSTIN BELLO whose telephone number is (571)272-3026. The examiner can normally be reached Monday through Friday, 9 AM - 5 PM. Examiner interviews are available via telephone, in-person, and video conferencing using a USPTO supplied web-based collaboration tool. To schedule an interview, applicant is encouraged to use the USPTO Automated Interview Request (AIR) at http://www.uspto.gov/interviewpractice. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, David Payne can be reached at (571)272-3024. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of published or unpublished applications may be obtained from Patent Center. Unpublished application information in Patent Center is available to registered users. To file and manage patent submissions in Patent Center, visit: https://patentcenter.uspto.gov. Visit https://www.uspto.gov/patents/apply/patent-center for more information about Patent Center and https://www.uspto.gov/patents/docx for information about filing in DOCX format. For additional questions, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /AGUSTIN BELLO/Primary Examiner, Art Unit 2635
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Prosecution Timeline

Dec 14, 2023
Application Filed
Nov 25, 2025
Non-Final Rejection — §102 (current)

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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

1-2
Expected OA Rounds
75%
Grant Probability
88%
With Interview (+12.1%)
2y 8m
Median Time to Grant
Low
PTA Risk
Based on 901 resolved cases by this examiner. Grant probability derived from career allow rate.

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