Prosecution Insights
Last updated: October 02, 2026
Application No. 18/878,265

SYSTEM AND METHOD FOR DIGITAL SIGNAL PROCESSING USING ADAPTIVE SOFT CLIPPING WITH LOOKAHEAD

Non-Final OA §102
Filed
Dec 23, 2024
Priority
Jun 21, 2022 — provisional 63/353,957 +1 more
Examiner
KRZYSTAN, ALEXANDER J
Art Unit
Tech Center
Assignee
Spotify AB
OA Round
1 (Non-Final)
81%
Grant Probability
Favorable
1-2
OA Rounds
1y 2m
Est. Remaining
88%
With Interview

Examiner Intelligence

Grants 81% — above average
81%
Career Allowance Rate
925 granted / 1138 resolved
+21.3% vs TC avg
Moderate +7% lift
Without
With
+7.2%
Interview Lift
resolved cases with interview
Typical timeline
2y 12m
Avg Prosecution
49 currently pending
Career history
1176
Total Applications
across all art units

Statute-Specific Performance

§101
2.8%
-37.2% vs TC avg
§103
41.9%
+1.9% vs TC avg
§102
20.2%
-19.8% vs TC avg
§112
18.1%
-21.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1138 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 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) 1-20 is/are rejected under 35 U.S.C. 102a1 as being anticipated by Garcia (US 11394356 B1). As per claims 1,11, Garcia discloses a system and method for processing an audio signal comprising: one or more algorithms operating on a processor (the following system is digital processor based and requires software and algorithms to enable the cited elements below) and configured to: generate a block of audio data (fig 2 output of 215), determine whether a previous block of audio data was processed with clipping active (stage 220, previous via the lookahead delay); scanning the block of audio data to generate lookahead information if the previous block of audio data was not processed with clipping active (the processing to produce the output 220); and using adaptive soft clipping if the previous block of audio data was processed with clipping active (the soft clipping adapts based on the output 220, when a peak is detected/when the previous audio was processed with clipping active) (the clipping is performed via the adapted gain applied to 225). As per claim 2,12, the system of claim 1 wherein using adaptive soft clipping if the previous block of audio data was processed with clipping active comprises using adaptive soft clipping with lookahead (per fig. 2). As per claim 3,13, the system of claim 1 further comprising applying a same soft clipping to the block of audio data as was applied to the previous block of audio data (via the hold mode in fig. 3, where the gain is held constant over a time period). As per claims 4,14, the system of claim 1 further comprising applying a same soft clipping to the block of audio data as was applied to the previous block of audio data if it is determined that soft clipping is active (via the hold mode in fig. 3 where the gain is constant over time). As per claims 5,15, the system of claim 1, further comprising applying hard clipping to the block of audio data (the hold mode where the gain is held constant provides a hard clip relative to the attack and release modes). As per claims 6,16, the system of claim 1 further comprising applying hard clipping to the block of audio data if it is determined that soft clipping is not active (the indication to implement the hold mode per fig. 3 where the constant gain provides the hard limit). As per claim 7,17, the system of claim l further comprising determining whether an input signal has dropped below a threshold (since the system is digital every cited signal, including the input signal, is compared to a threshold as part of the normal quantizing inherent to digital processing). As per claims 8,18, the system of claim I further comprising determining whether an input signal has dropped below a threshold and continuing soft clipping if the input signal has not dropped below the threshold (para. 50, via the block gain value, para 55, the attack mode). As per claims 9,19, the system of claim I, further comprising determining whether an input signal has dropped below a threshold and continuing hard clipping if the input signal has not dropped below the threshold (para. 50, via the block gain value, para 55, the hold mode). As per claims 10,20, the system of claim 1 further comprising determining whether an input signal has dropped below a threshold (per para 50) and scanning the block of audio data to generate the lookahead information if the input signal has dropped below the threshold (the lookahead information is generated based on the processing of fig. 2, is based on the input signal and its relationship to the threshold per para 50). Any inquiry concerning this communication or earlier communications from the examiner should be directed to ALEXANDER KRZYSTAN whose telephone number is 571-272-7498, and whose email address is alexander.krzystan@uspto.gov The examiner can usually be reached on m-f 7:30-4:00 est. If attempts to reach the examiner by telephone or email are unsuccessful, the examiner’s supervisor, Fan Tsang can be reached on (571) 272-7547. The fax phone numbers for the organization where this application or proceeding is assigned are 571-273-8300 for regular communications and 571-273-8300 for After Final communications. /ALEXANDER KRZYSTAN/Primary Examiner, Art Unit 2653 Examiner Alexander Krzystan June 3, 2026
Read full office action

Prosecution Timeline

Dec 23, 2024
Application Filed
Jun 05, 2026
Non-Final Rejection mailed — §102
Aug 28, 2026
Interview Requested
Sep 25, 2026
Applicant Interview (Telephonic)
Sep 25, 2026
Examiner Interview Summary

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12739584
Method and Apparatus for Obtaining a Higher-Order Ambisonics (HOA) Coefficient
3y 0m to grant Granted Sep 15, 2026
Patent 12707221
METHODS, APPARATUS AND SYSTEMS FOR A PRE-RENDERED SIGNAL FOR AUDIO RENDERING
3y 7m to grant Granted Aug 11, 2026
Patent 12705016
SYSTEMS AND METHODS FOR MULTI-POINT CONTEXTUAL CONNECTIVITY FOR WIRELESS AUDIO DEVICES
2y 7m to grant Granted Aug 11, 2026
Patent 12707219
ELECTRONIC SYSTEM WITH EARPHONE/HEADPHONE RECOMMENDATION BASED ON EXPECTED CONTEXT OF DAILY USAGE OF WEARABLE AUDIO OUTPUT DEVICE(S)
2y 4m to grant Granted Aug 11, 2026
Patent 12689693
SPATIALLY BASED ADAPTIVE FILTER FOR A DOUBLE TALK RECOVERY METHOD
2y 8m to grant Granted Jul 21, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

Strategy Recommendation AI-generated — please review before filing

Get a prosecution strategy drawn from examiner precedents, rejection analysis, and claim mapping.
Typically takes 5-10 seconds — AI-generated, attorney review required before filing

Prosecution Projections

1-2
Expected OA Rounds
81%
Grant Probability
88%
With Interview (+7.2%)
2y 12m (~1y 2m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1138 resolved cases by this examiner. Grant probability derived from career allowance rate.

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month