Prosecution Insights
Last updated: July 17, 2026
Application No. 18/750,666

METHOD FOR GENERATING SUBTITLE, ELECTRONIC DEVICE, AND COMPUTER-READABLE STORAGE MEDIUM

Non-Final OA §103
Filed
Jun 21, 2024
Priority
Dec 22, 2021 — CN 202111583584.6 +1 more
Examiner
WENDMAGEGN, GIRUMSEW
Art Unit
2484
Tech Center
2400 — Computer Networks
Assignee
Tencent Music Entertainment Technology (Shenzhen) Co. Ltd.
OA Round
2 (Non-Final)
77%
Grant Probability
Favorable
2-3
OA Rounds
10m
Est. Remaining
98%
With Interview

Examiner Intelligence

Grants 77% — above average
77%
Career Allowance Rate
752 granted / 979 resolved
+18.8% vs TC avg
Strong +21% interview lift
Without
With
+21.3%
Interview Lift
resolved cases with interview
Typical timeline
2y 11m
Avg Prosecution
11 currently pending
Career history
994
Total Applications
across all art units

Statute-Specific Performance

§101
3.7%
-36.3% vs TC avg
§103
67.0%
+27.0% vs TC avg
§102
19.1%
-20.9% vs TC avg
§112
0.5%
-39.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 979 resolved cases

Office Action

§103
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 with respect to claims 1-20 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. Claim Rejections - 35 USC § 103 The following is a quotation of 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action: A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made. Claims 1-2, 5-7, 9-10, 13-15, 17-18 are rejected under 35 U.S.C. 103 as being unpatentable over Zhao US 2018/0349494 in view of Sakurai JP 3787545B2. Regarding claim1, Zhao teaches a method for generating a subtitle, comprising: extracting a song audio signal from target video data(fig. 1 step 101 extracting an audio file in the video ); determining a target song corresponding to the song audio signal and a time position of the song audio signal in the target song(fig. 1, step102, acquiring a candidate song file corresponding to the candidate song identity and…),; obtaining lyric information corresponding to the target song, wherein the lyric information comprises one or more lyrics, and the lyric information further comprises a starting time and duration of each lyric and/or a starting time and duration of each word in each lyric([0026], acquiring the supplemental content(lyrics) corresponding to the segment of the audio content according to the target song identification, the corresponding first timestamp, and the duration, [0125], searching for lyrics of the piece of music including timestamps associated with the piece of music played in the video and the relative location of the piece of music in the identified song) but does not teach and Sakurai teaches rendering a subtitle in the target video data based on the lyric information and the time position to obtain target video data with a subtitle([0006], the control means generates lyric subtitle image data according to the lyric data singing time information, and video output means uses the lyrics subtitle image to output video signal). It would have been obvious to a person having ordinary skill in the art before the effective filing date of the claimed invention display lyrics subtitle as in Sakurai in order to improve synchronism between the subtitle and music ([0024]). Regarding claim2,Zahao teaches the method of claim 1, wherein determining the target song corresponding to the song audio signal and the time position of the song audio signal in the target song comprises: converting the song audio signal into speech spectrum information([0054], [0132-0133], converting the audio into audio frequency); determining fingerprint information of the song audio signal based on a peak point in the speech spectrum information([0133], acquiring the corresponding frequency spectrum of the audio frame of the audio frequency and then extracting the corresponding frequency spectrum peak points of the audio frame so as to obtain the frequency spectrum peak points corresponding to the audio frequency, and then combining the peak points in the set two by two so as to obtain the audio fingerprint, [0134-0136]); and matching the fingerprint information of the song audio signal with song fingerprint information in a song fingerprint database to determine the target song corresponding to the song audio signal and the time position of the song audio signal in the target song([0147], [0154], [0162-0164]). Regarding claim5, Zahao in view of Sakurai teaches the method of claim 1, wherein rendering the subtitle in the target video data based on the lyric information corresponding to the target song and the time position of the song audio signal in the target song to obtain the target video data with the subtitle comprises: determining a subtitle content corresponding to the song audio signal and time information of the subtitle content in the target video data based on the lyric information corresponding to the target song and the time position of the song audio signal in the target song(Sakurai:[0006], the control means generates lyric subtitle image data according to the lyric data singing time information); and rendering the subtitle in the target video data based on the subtitle content corresponding to the song audio signal and the time information of the subtitle content in the target video data to obtain the target video data with the subtitle(Sakurai:[0006], and video output means uses the lyrics subtitle image to output video signal). The motivation for combining the prior arts discussed in claim1 above. Regarding claim6, Zahao in view of Sakurai teaches the method of claim 5, wherein rendering the subtitle in the target video data based on the subtitle content corresponding to the song audio signal and the time information of the subtitle content in the target video data to obtain the target video data with the subtitle comprises: drawing the subtitle content as one or more subtitle pictures based on a target font configuration file(Sakurai:[0006], the control means generates lyric subtitle image data based on the lyric character information(font) and layout information according to the lyric data singing time information); and rendering the subtitle in the target video data based on the one or more subtitle pictures and the time information of the subtitle content in the target video data to obtain the target video data with the subtitle(Sakurai:[0006], and video output means uses the lyrics subtitle image to output video signal). The motivation for combining the prior arts discussed in claim1 above. Regarding claim7, Zahao in view of Sakurai teaches the method of claim 6, wherein rendering the subtitle in the target video data based on the one or more subtitle pictures and the time information of the subtitle content in the target video data to obtain the target video data with the subtitle comprises: determining position information of the one or more subtitle pictures in a video frame of the target video data(Sakurai:[0006], [0016-0018], [0029]); and rendering the subtitle in the target video data based on the one or more subtitle pictures, the time information of the subtitle content in the target video data, and the position information of the one or more subtitle pictures in the video frame of the target video data, to obtain the target video data with the subtitle(Sakurai:[0006], the control means generates lyric subtitle image data according to the lyric data singing time information, and video output means uses the lyrics subtitle image to output video signal). The motivation for combining the prior arts discussed in claim1 above. Regarding claim9, Zahao teaches an electronic device comprising a processor(fig. 4 processing unit 41), a communication interface(fig. 4 communication connection 46), and a memory(fig. 4 storage unit 42, 43), wherein the processor, the communication interface, and the memory are connected to each other, wherein the memory is configured to store executable program codes([0295], computer readable instructions may be loaded to the storage unit 42 to be executed, for instance by the processing unit 41), and the processor is configured to invoke the executable program codes to: extract a song audio signal from target video data((fig. 1 step 101 extracting an audio file in the video ); determine a target song corresponding to the song audio signal and a time position of the song audio signal in the target song(fig. 1, step102, acquiring a candidate song file corresponding to the candidate song identity and…); obtain lyric information corresponding to the target song, wherein the lyric information comprises one or more lyrics, and the lyric information further comprises a starting time and duration of each lyric and/or a starting time and duration of each word in each lyric([0026], acquiring the supplemental content(lyrics) corresponding to the segment of the audio content according to the target song identification, the corresponding first timestamp, and the duration, [0125], searching for lyrics of the piece of music including timestamps associated with the piece of music played in the video and the relative location of the piece of music in the identified song) but does not teach and Sakurai teaches rendering a subtitle in the target video data based on the lyric information and the time position to obtain target video data with a subtitle([0006], the control means generates lyric subtitle image data according to the lyric data singing time information, and video output means uses the lyrics subtitle image to output video signal). It would have been obvious to a person having ordinary skill in the art before the effective filing date of the claimed invention display lyrics subtitle as in Sakurai in order to improve synchronism between the subtitle and music ([0024]). Claim10 is rejected for similar reason as discussed in claim2 above. Claim13 is rejected for similar reason as discussed in claim5 above. Claim14 is rejected for similar reason as discussed in claim6 above. Claim15 is rejected for similar reason as discussed in claim7 above. Claim17 is rejected for similar reason as discussed in claim9 above. Claim18 is rejected for similar reason as discussed in claim2 above. Claim15 is rejected for similar reason as discussed in claim7 above. Allowable Subject Matter Claims 3-4, 8, 11-12, 16, 19-20 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. Any inquiry concerning this communication or earlier communications from the examiner should be directed to GIRUMSEW WENDMAGEGN whose telephone number is (571)270-1118. The examiner can normally be reached 9:00-7:00 PM. 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, Thai Tran can be reached at (571) 272-7382. 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. GIRUMSEW WENDMAGEGN Primary Examiner Art Unit 2484 /GIRUMSEW WENDMAGEGN/ Primary Examiner, Art Unit 2484
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Prosecution Timeline

Jun 21, 2024
Application Filed
Oct 02, 2025
Non-Final Rejection mailed — §103
Dec 30, 2025
Response Filed
May 04, 2026
Non-Final Rejection mailed — §103 (current)

Precedent Cases

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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

2-3
Expected OA Rounds
77%
Grant Probability
98%
With Interview (+21.3%)
2y 11m (~10m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 979 resolved cases by this examiner. Grant probability derived from career allowance rate.

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