Prosecution Insights
Last updated: October 02, 2026
Application No. 18/915,382

SIGNAL PROCESSING CIRCUIT AND SENSOR UNIT

Final Rejection §102
Filed
Oct 15, 2024
Priority
Jan 11, 2024 — JP 2024-002335
Examiner
NGUYEN, LONG T
Art Unit
2842
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
TDK Corporation
OA Round
2 (Final)
89%
Grant Probability
Favorable
3-4
OA Rounds
0m
Est. Remaining
98%
With Interview

Examiner Intelligence

Grants 89% — above average
89%
Career Allowance Rate
850 granted / 951 resolved
+21.4% vs TC avg
Moderate +8% lift
Without
With
+8.3%
Interview Lift
resolved cases with interview
Fast prosecutor
1y 10m
Avg Prosecution
20 currently pending
Career history
977
Total Applications
across all art units

Statute-Specific Performance

§101
0.8%
-39.2% vs TC avg
§103
19.2%
-20.8% vs TC avg
§102
36.9%
-3.1% vs TC avg
§112
33.1%
-6.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 951 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 . Response to Amendment This office action is in responses to the amendment filed on 07/16/26. In this office action, withdrawn claim 3 is rejointed because independent claim 1 is allowable. Claim Rejections - 35 USC § 102 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 21 is rejected under 35 U.S.C. 102(a)(1) as being anticipated by Stevens (US 2006/0087326). For claim 1, Figure 1 of Stevens teaches a signal processing circuit comprising: a first element (R1) and a second element (R2) connected in series to each other between a first DC power supply (1a S1) and ground (1c S2), with respective resistance values thereof varying in response to a change in a physical amount of an observation target; an operational amplifier (IC1) having an inverting input terminal (- terminal) connected to a midpoint (1b) between the first element (R1) and the second element (R2), a non-inverting input terminal (+ terminal) connected to a second DC power supply (1e), and an output terminal (Vout); and a feedback resistor (Rf) connected between the output terminal (Vout) and the inverting input terminal (- terminal), wherein the inverting input terminal (- terminal) is directly connected to the midpoint (1b) between the first element (R1) and the second element (R2). Allowable Subject Matter Claims 1, 3-5 and 9-20 are allowed. The following is a statement of reasons for the indication of allowable subject matter: Claim 1, as amended, is allowed because applicant’ arguments are found persuasive that the closet prior art (Bicking, US 2003/0117208), taken alone or in combination, fails to teach or suggest a signal processing circuit including the limitation “wherein a minimum value of an input resistance value to the inverting input terminal determined by the respective resistance values of the first element and the second element is greater than a resistance value of the feedback resistor” in combine with other limitations in the claim as a whole. Note that, another closet prior art, Stevens (US 2006/0087326), taken alone or in combination, also fails to teach or suggest a signal processing circuit including the limitation “wherein a minimum value of an input resistance value to the inverting input terminal determined by the respective resistance values of the first element and the second element is greater than a resistance value of the feedback resistor” in combine with other limitations in the claim as a whole. Claims 3-5 and 9-20 are allowed because they depend on claim 1. Response to Arguments Applicant’s arguments with respect to claim 21 have been considered but are moot because the new ground of rejection does not rely on any reference applied in the prior rejection of record for any teaching or matter specifically challenged in the argument. Conclusion Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directly to Examiner Long Nguyen whose telephone number is (571) 272-1753. The Examiner can normally be reached on Monday to Friday from 8:30am to 5:00pm. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Regis Betsch, can be reached at (571) 270-7101. The fax number for this group is (571) 273-8300. Information regarding the status of an application may be obtained from the Patent Application Information Retrieval (PAIR) system. Status information for published applications may be obtained from either Private PAIR or Public PAIR. Status information for unpublished applications is available through Private PAIR only. For more information about the PAIR system, see http://pair-direct.uspto.gov. Should you have questions on access to the Private PAIR system, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). 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. /Long Nguyen/ Primary Examiner Art Unit 2836
Read full office action

Prosecution Timeline

Oct 15, 2024
Application Filed
Mar 16, 2026
Non-Final Rejection mailed — §102
Jun 23, 2026
Interview Requested
Jul 01, 2026
Examiner Interview Summary
Jul 01, 2026
Applicant Interview (Telephonic)
Jul 16, 2026
Response Filed
Sep 18, 2026
Final Rejection mailed — §102 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12744519
INTEGRATED CIRCUIT AND METHOD OF FORMING THE SAME
2y 2m to grant Granted Sep 22, 2026
Patent 12732169
SEMICONDUCTOR MODULE
2y 0m to grant Granted Sep 08, 2026
Patent 12719473
LEVEL SHIFTER
2y 1m to grant Granted Aug 25, 2026
Patent 12720655
INRUSH CURRENT PROTECTION CIRCUIT FOR SOLID STATE LIGHTING FIXTURES
1y 11m to grant Granted Aug 25, 2026
Patent 12712535
INTEGRATED CIRCUIT AND METHOD OF FORMING THE SAME
2y 0m to grant Granted Aug 18, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

3-4
Expected OA Rounds
89%
Grant Probability
98%
With Interview (+8.3%)
1y 10m (~0m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 951 resolved cases by this examiner. Grant probability derived from career allowance rate.

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