Prosecution Insights
Last updated: September 02, 2026
Application No. 18/834,954

OPTICAL COMMUNICATION SYSTEM, AGGREGATE STATION AND COMMUNICATION METHOD

Non-Final OA §102
Filed
Jul 31, 2024
Priority
Feb 03, 2022 — nonprovisional of PCTJP2022004228
Examiner
VANDERPUYE, KENNETH N
Art Unit
2634
Tech Center
2600 — Communications
Assignee
Nippon Telegraph and Telephone Corporation
OA Round
1 (Non-Final)
24%
Grant Probability
At Risk
1-2
OA Rounds
1y 3m
Est. Remaining
24%
With Interview

Examiner Intelligence

Grants only 24% of cases
24%
Career Allowance Rate
16 granted / 67 resolved
-38.1% vs TC avg
Minimal +0% lift
Without
With
+0.0%
Interview Lift
resolved cases with interview
Typical timeline
3y 4m
Avg Prosecution
28 currently pending
Career history
87
Total Applications
across all art units

Statute-Specific Performance

§101
4.1%
-35.9% vs TC avg
§103
54.5%
+14.5% vs TC avg
§102
23.8%
-16.2% vs TC avg
§112
14.8%
-25.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 67 resolved cases

Office Action

§102
CTNF 18/834,954 CTNF 101705 Notice of Pre-AIA or AIA Status 07-03-aia AIA 15-10-aia 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 07-07-aia AIA 07-07 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 – 07-08-aia AIA (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. 07-15-aia AIA Claim(s) 1-3 is/are rejected under 35 U.S.C. 102 (a)(1) as being anticipated by Yamamoto (JP 2003/324393A) . Regarding Claims 1 and 3, Yamamoto teaches An optical communication system (FIG. 1) having an aggregate station at a head (FIG. 1: 400) and a plurality of extension stations connected in series (FIG. 1: 500), wherein the aggregate station outputs a downlink optical signal generated by performing electrical-to-optical (E/O) conversion for a radio signal (FIG. 1: 403) to the plurality of extension stations (FIG. 1: 500) and acquires radio signals by performing optical-to-electrical (O/E) conversion for uplink optical signals input from the plurality of extension stations (FIG. 1: 404), wherein each extension station transmits a radio signal obtained by performing O/E conversion for the downlink optical signal received from the aggregate station (FIG. 1: 508) and transmits an uplink optical signal generated by performing E/O conversion for a received radio signal to the aggregate station (FIG. 1: 503), and wherein wavelengths of the uplink optical signal and the downlink optical signal allocated to the plurality of extension stations are the same ([0092] (“The wavelength band of the optical signal output from the electrical / optical converter 503 and the wavelength band of the optical signal output from the electrical / optical converter 403 may be the same or different”)). Regarding Claim 2 , An aggregate station in an optical communication system (FIG. 1) having the aggregate station at a head (FIG. 1: 400) and a plurality of extension stations connected in series (FIG. 1: 500), wherein only an optical signal of a first wavelength is transmitted to the extension station (FIG. 1: 403) and only an optical signal of a second wavelength different from the first wavelength is received from the extension station. (FIG. 1 : 503); ([0092] (“The wavelength band of the optical signal output from the electrical / optical converter 503 and the wavelength band of the optical signal output from the electrical / optical converter 403 may be the same or different”)). Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to PAUL M BROCK whose telephone number is (571)272-7257. The examiner can normally be reached 8-4:30pm. 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, Kenneth Vanderpuye can be reached at (571) 272-3078. 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. /PAUL MORGAN BROCK/Examiner, Art Unit 2634 May 19, 2026 /KENNETH N VANDERPUYE/Supervisory Patent Examiner, Art Unit 2634 Application/Control Number: 18/834,954 Page 2 Art Unit: 2634 Application/Control Number: 18/834,954 Page 3 Art Unit: 2634 Application/Control Number: 18/834,954 Page 4 Art Unit: 2634
Read full office action

Prosecution Timeline

Jul 31, 2024
Application Filed
May 27, 2026
Non-Final Rejection mailed — §102
Aug 24, 2026
Response Filed

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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
24%
Grant Probability
24%
With Interview (+0.0%)
3y 4m (~1y 3m remaining)
Median Time to Grant
Low
PTA Risk
Based on 67 resolved cases by this examiner. Grant probability derived from career allowance rate.

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