Office Action Predictor
Last updated: April 15, 2026
Application No. 18/625,890

DEVICE AND METHOD FOR DETECTING A WEARING STATUS OF A HEADPHONE

Non-Final OA §102§103
Filed
Apr 03, 2024
Examiner
OJO, OYESOLA C
Art Unit
2695
Tech Center
2600 — Communications
Assignee
Lanto Electronic Limited
OA Round
1 (Non-Final)
82%
Grant Probability
Favorable
1-2
OA Rounds
2y 1m
To Grant
88%
With Interview

Examiner Intelligence

Grants 82% — above average
82%
Career Allow Rate
587 granted / 715 resolved
+20.1% vs TC avg
Moderate +6% lift
Without
With
+5.9%
Interview Lift
resolved cases with interview
Fast prosecutor
2y 1m
Avg Prosecution
21 currently pending
Career history
736
Total Applications
across all art units

Statute-Specific Performance

§101
1.1%
-38.9% vs TC avg
§103
56.8%
+16.8% vs TC avg
§102
24.0%
-16.0% vs TC avg
§112
9.8%
-30.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 715 resolved cases

Office Action

§102 §103
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 . Status of Claims Claims 1 and 8-10 are rejected Claims 2-7 and 11-18 are objected to 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 (i.e., changing from AIA to pre-AIA ) 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 and 9 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Song et al (US PUB 20190387304, hereinafter Song). Regarding Claim 1, Song discloses a device for detecting a wearing status of a headphone (e.g. a headset 100), (see at least the abstract and figure 1), comprising: a sensor (e.g. sensor 311 of a wearing status sensing module 31), (see figure 2), a player (e.g. a player of a sound control system 30), an acoustic detection assembly (e.g. sound collection module 34), and a microprocessor (e.g. a control module 32), wherein the acoustic detection assembly is connected to the player through a digital-to-analog converter (e.g. a DAC within the main control unit 321), and the microprocessor is connected to the sensor and the acoustic detection assembly separately (see figure 4); the sensor is configured to determine, in combination with the microprocessor, a wearing status (e.g. wearing status sensing module 31) of the headphone within a period of time after current time in a case where the headphone is in a worn status at the current time (e.g. the actual wearing time period of the headset 100 in case the headset 100 is in a worn state is determined through via an optical sensor); and the acoustic detection assembly is configured to determine, in combination with the microprocessor and the player, the wearing status of the headphone within the period of time after the current time in a case where the headphone is in a non-worn status at the current time (e.g. the time period at which the headset 100 has been taken-off is also determined via the optical sensor when it is discovered that the headset 100 is in a no-wearing state), (see Song, [0012], [0023]-[0026], [0031], [0033]-[0034], [0052] and [0054], also figures 1-4). Regarding Claim 9, Song discloses a method for detecting a wearing status of a headphone (e.g. a headset 100), the method being performed by a device for detecting a wearing status of a headphone of claim 1 (e.g. using the device according to figures 1-4), and comprising: in a case where the headphone is in a worn status at current time, determining a wearing status of the headphone (e.g. via wearing status sensing module 31) within a period of time after the current time through the sensor (an optical sensor); and in a case where the headphone is in a non-worn status at current time, determining a wearing status of the headphone within a period of time after the current time through the player and the acoustic detection assembly (see Song, [0024], [0052] and [0054], also figures 3-4). Claim(s) 8 and 10 is/are rejected under 35 U.S.C. 103 as being unpatentable over Song in view of Hayashi et al (US PUB 20170142522, hereinafter Hayashi). Regarding Claim 8, Song discloses a device for detecting a wearing status of a headphone (e.g. a headset 100), (see at least the abstract and figure 1), comprising: a sensor (e.g. sensor 311 of a wearing status sensing module 31), (see figure 2), a player (e.g. a player of a sound control system 30), (e.g. sound collection module 34), an acoustic detection assembly (e.g. sound collection module 34) and a microprocessor (e.g. a control module 32), wherein the acoustic detection assembly is connected to the player through a digital-to-analog converter (e.g. a DAC within the main control unit 321), and the microprocessor is connected to the sensor and the acoustic detection assembly separately; and the acoustic detection assembly is configured to, receive an audio signal by a receiver (e.g. a speaker 20) in the acoustic detection assembly (see figure 4), wherein the audio signal is played by the player (see Song, [0012], [0023]-[0026], [0031], [0033]-[0034], [0052] and [0054], also figures 1-4). Song does not explicitly teach the sensor is configured to send a trigger signal to the microprocessor after sensing that the headphone leaves an ear; the microprocessor is configured to trigger the acoustic detection assembly to detect the wearing status of the headphone after receiving the trigger signal, and convert the audio signal from a time domain signal to a frequency domain signal, and identify the frequency domain signal after conversion to determine the wearing status of the headphone. However, Hayashi in the same field of endeavor teaches a device for detecting a wearing status of a headphone (e.g. a headphone 1), (see figure 3), comprising a sensor (e.g. a sensor positioned on housing 10 of the headphone) is configured to send a trigger signal to a microprocessor (e.g. DSP 106) after sensing that the headphone leaves an ear; the microprocessor is configured to trigger the acoustic detection assembly to detect the wearing status of the headphone after receiving the trigger signal, and convert the audio signal from a time domain signal to a frequency domain signal, and identify the frequency domain signal after conversion to determine the wearing status of the headphone (e.g. a signal converting unit 121 executes signal processing of converting a signal from a time domain into a frequency domain on an audio signal 2 to be supplied to the headphone and the audio reproduction signal output from the microphone amplifier 104), (see Hayashi, [0053]-[0054] and [0089]-[0090], also figure 3). Therefore, it would have been obvious to any person having an ordinary skill in the art before the effective filing date of the present invention to incorporate a triggering event, and the ability to convert the audio signal from time domain to frequency and identify the frequency domain signal as taught by Hayashi in the teachings of Song, in order to simplify the different signal processing steps, and further improve accuracy of the wearing status determination outcome. Regarding Claim 10, Song as modified by Hayashi discloses the method for detecting a wearing status of a headphone, the method being performed by the device for detecting a wearing status of a headphone of claim 8 and comprising: triggering the acoustic detection assembly after the sensor senses that the headphone leaves an ear; receiving, by the receiver of the acoustic detection assembly, an audio signal played by the player; and converting, by the acoustic detection assembly, the audio signal from a time domain signal to a frequency domain signal, and identifying the frequency domain signal after conversion to determine the wearing status of the headphone (see Hayashi, [0053]-[0054] and [0089]-[0090], also figure 3). Allowable Subject Matter Claims 2-7, 11 and 15-18 are objected to as being dependent upon a rejected base claim, but would be allowable if rewritten in independent form including all of the limitations of the base claim and any intervening claims. Conclusion The prior art made of record provided on PTO 892 and not relied upon is considered pertinent to applicant's disclosure. Any inquiry concerning this communication or earlier communications from the examiner should be directed to OYESOLA C OJO whose telephone number is (571)272-0848. The examiner can normally be reached Monday through Friday 8:00am to 4:00pm Central Time. 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, Vivian Chin can be reached at 571-272-7840. 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. /OYESOLA C OJO/Primary Examiner, Art Unit 2695
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Prosecution Timeline

Apr 03, 2024
Application Filed
Dec 13, 2025
Non-Final Rejection — §102, §103
Mar 30, 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
82%
Grant Probability
88%
With Interview (+5.9%)
2y 1m
Median Time to Grant
Low
PTA Risk
Based on 715 resolved cases by this examiner. Grant probability derived from career allow rate.

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