Prosecution Insights
Last updated: August 17, 2026
Application No. 18/520,208

TECHNIQUES FOR ADDING DISTANCE-DEPENDENT REVERB TO AN AUDIO SIGNAL FOR A VIRTUAL SOUND SOURCE

Non-Final OA §112
Filed
Nov 27, 2023
Examiner
ZHU, QIN
Art Unit
2691
Tech Center
2600 — Communications
Assignee
Harman International Industries Incorporated
OA Round
3 (Non-Final)
88%
Grant Probability
Favorable
3-4
OA Rounds
0m
Est. Remaining
91%
With Interview

Examiner Intelligence

Grants 88% — above average
88%
Career Allowance Rate
553 granted / 631 resolved
+25.6% vs TC avg
Minimal +3% lift
Without
With
+3.0%
Interview Lift
resolved cases with interview
Fast prosecutor
1y 11m
Avg Prosecution
25 currently pending
Career history
652
Total Applications
across all art units

Statute-Specific Performance

§101
4.7%
-35.3% vs TC avg
§103
46.0%
+6.0% vs TC avg
§102
17.8%
-22.2% vs TC avg
§112
17.7%
-22.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 631 resolved cases

Office Action

§112
DETAILED ACTION This action is in response to communications filed remarks filed 6/1/2026: Claims 1-20 are pending 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 Arguments Applicant’s arguments, see remarks, filed 6/1/2026, with respect to claims 1-20 have been fully considered and are persuasive. The rejection of 3/2/2026 has been withdrawn. Response to Amendment Claim Rejections - 35 USC § 112 The following is a quotation of 35 U.S.C. 112(b): (b) CONCLUSION.—The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the inventor or a joint inventor regards as the invention. The following is a quotation of 35 U.S.C. 112 (pre-AIA ), second paragraph: The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention. Claims 1-13 are rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor (or for applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention. Regarding claim 1, it recites “determining a boundary…of a first physical sound source” and “generating a first virtual audio signal for a first physical sound source, wherein the first virtual audio signal is associated with the first virtual audio source and is based on the wet-signal distribution”. It is unclear whether the first recitation of “a first physical sound source” is the same as the second recitation or whether these physical sound sources are different and thus require a further amendment to show the clear difference. Claims 2-13 are dependent upon and indefinite parent claim and thus also considered to be indefinite. Allowable Subject Matter Claims 1-20 are allowed upon overcoming the above rejection(s). The following is an examiner’s statement of reasons for allowance: regarding claims 1, 14, and 20, the prior art or combination thereof fails to disclose and make obvious the invention as a whole. Regarding claim 1, Eronen fails to explicitly teach the amended portions of “determining a boundary of the listening area based on at least a first position in the acoustic environment of a first physical sound source and determining, based on the current position of the first virtual audio source relative to the boundary, a set-signal distribution. Similarly, Eronen fails to disclose each and every limitation of claims 14 and 20 in a similar fashion. The respective dependent claims are also allowable as they depend upon an allowable parent claim. Any comments considered necessary by applicant must be submitted no later than the payment of the issue fee and, to avoid processing delays, should preferably accompany the issue fee. Such submissions should be clearly labeled “Comments on Statement of Reasons for Allowance.” Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Refer to PTO-892, Notice of References Cited for a listing of analogous art. Any inquiry concerning this communication or earlier communications from the examiner should be directed to QIN ZHU whose telephone number is (571)270-1304. The examiner can normally be reached on Mon-Fri: 7:30AM-5:00PM EST. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Duc Nguyen can be reached on (571)272-7503. The fax phone number for the organization where this application or proceeding is assigned 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). If you would like assistance from a USPTO Customer Service Representative or access to the automated information system, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /QIN ZHU/Primary Examiner, Art Unit 2691
Read full office action

Prosecution Timeline

Nov 27, 2023
Application Filed
Oct 29, 2025
Non-Final Rejection mailed — §112
Jan 27, 2026
Response Filed
Mar 02, 2026
Final Rejection mailed — §112
Apr 29, 2026
Response after Non-Final Action
Jun 01, 2026
Request for Continued Examination
Jun 04, 2026
Response after Non-Final Action
Jul 10, 2026
Non-Final Rejection mailed — §112 (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

3-4
Expected OA Rounds
88%
Grant Probability
91%
With Interview (+3.0%)
1y 11m (~0m remaining)
Median Time to Grant
High
PTA Risk
Based on 631 resolved cases by this examiner. Grant probability derived from career allowance rate.

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