Prosecution Insights
Last updated: October 04, 2026
Application No. 18/879,485

METHOD OF ENCODING, METHOD OF DECODING, AND SYSTEM

Final Rejection §103
Filed
Dec 27, 2024
Priority
Jul 05, 2022 — provisional 63/367,708 +2 more
Examiner
BECK, LERON
Art Unit
2487
Tech Center
2400 — Computer Networks
Assignee
Guangdong OPPO Mobile Telecommunications Corp., Ltd.
OA Round
2 (Final)
80%
Grant Probability
Favorable
3-4
OA Rounds
9m
Est. Remaining
91%
With Interview

Examiner Intelligence

Grants 80% — above average
80%
Career Allowance Rate
711 granted / 887 resolved
+22.2% vs TC avg
Moderate +11% lift
Without
With
+11.0%
Interview Lift
resolved cases with interview
Typical timeline
2y 7m
Avg Prosecution
35 currently pending
Career history
937
Total Applications
across all art units

Statute-Specific Performance

§101
8.6%
-31.4% vs TC avg
§103
52.5%
+12.5% vs TC avg
§102
12.3%
-27.7% vs TC avg
§112
12.2%
-27.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 887 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 . Status of Claims 2. This is a final action on the merits in response to the reply received 6/16/2026. Response to Arguments Applicant’s arguments have been considered but are not persuasive. Applicant argues that Chen fails to teach in response to a size of the search block in the reference frame meeting a threshold size, selecting, by the at least one processor, a first weighting factor from a first set of more than two weighting factors associated with the MHP procedure. The examiner respectfully disagrees. Chen discloses that the weight value is specified based on any size at a block level. For example, no mater what size of the unit, weight value is specified. In addition, Pham discloses selecting weights based on block sizes in [0230]. Therefore, it would have been obvious to one of ordinary skilled in the art before the effective filing date of the claimed invention to modify the method disclosed by Chen to disclose in response to a size of the search block in the reference frame meeting a threshold size, selecting, by the at least one processor, a first weighting factor from a first set of more than two weighting factors associated with the MHP procedure as taught by Pham, to improve combined inter-intra prediction mode for prediction of video data ([0022], Pham). Rejection remains. 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. Claim(s) 1, 5-6, 13, 17-19, 23-24 are rejected under 35 U.S.C. 103 as being unpatentable over US patent 12335460 B2-Chen et al (hereinafter referred to as “Chen”), in view of US 20200260091 A1-Pham Van et al (hereinafter referred to as “Pham”) Regarding claim 1, Chen discloses a method of encoding by an encoder (abstract, wherein methods are described for video coding), comprising: receiving, by at least one processor, a set of frames including a reference frame and a current frame (Column 1, lines 45-55); performing, by the at least one processor, a multi-hypothesis prediction (MHP) procedure for a coding unit (CU) located in the current frame based on a search block in the reference frame (Column 6, lines 1-15); and in response to a size of the search block in the reference frame meeting a threshold size, selecting, by the at least one processor, a first weighting factor from a first set of more than two weighting factors associated with the MHP procedure (column 6, lines 45-60). Chen fails to disclose selecting weights based on block sizes. However, in the same field of endeavor, Pham discloses selecting weights based on block sizes ([0230]) Therefore, it would have been obvious to one of ordinary skilled in the art before the effective filing date of the claimed invention to modify the method disclosed by Chen to disclose in response to a size of the search block in the reference frame meeting a threshold size, selecting, by the at least one processor, a first weighting factor from a first set of more than two weighting factors associated with the MHP procedure as taught by Pham, to improve combined inter-intra prediction mode for prediction of video data ([0022], Pham). Regarding claim 5, Pham discloses the method of claim 1, wherein the performing, by the at least one processor, the MHP procedure for the CU located in the current frame based on a search block in the reference frame comprises: obtaining, by the at least one processor, motion information associated with the CU located in the current frame based and the search block in the reference frame using template matching (column 10, lines 35-50); and encoding, by the at least one processor, the current frame based on the motion information and the first weighting factor (column 10, lines 35-50), wherein the first weighting factor is selected based on the motion information obtained via template matching (column 15, lines 55-67). Regarding claim 6, Pham discloses the method of claim 1, further comprising: identifying, by at least one processor, a weighting factor sign associated with the first weighting factor (column 10, lines 55-67); and sending, by the at least one processor, an indication of the weighting factor sign associated with the first weighting factor in a bitstream ((column 10, lines 55-67)). Regarding claim 13, analyses are analogous to those presented for claim 1 and are applicable for claim 13. Regarding claim 17, analyses are analogous to those presented for claim 5 and are applicable for claim 17. Regarding claim 18, analyses are analogous to those presented for claim 6 and are applicable for claim 18. Regarding claim 19, analyses are analogous to those presented for claim 1 and are applicable for claim 19. Regarding claim 23, analyses are analogous to those presented for claim 5 and are applicable for claim 23. Regarding claim 24, analyses are analogous to those presented for claim 6 and are applicable for claim 24. Allowable Subject Matter Claim 2-4, 14-16, 20-22 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 THIS ACTION IS MADE FINAL. 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 directed to LERON BECK whose telephone number is (571)270-1175. The examiner can normally be reached M-F 8 am-5pm. 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, David Czekaj can be reached at (571) 272-7327. 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. LERON . BECK Examiner Art Unit 2487 /LERON BECK/ Primary Examiner, Art Unit 2487
Read full office action

Prosecution Timeline

Dec 27, 2024
Application Filed
Mar 17, 2026
Non-Final Rejection mailed — §103
Jun 16, 2026
Response Filed
Aug 27, 2026
Final Rejection mailed — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12750520
TEMPLATE MATCHING-BASED MOTION REFINEMENT IN VIDEO CODING
2y 0m to grant Granted Sep 29, 2026
Patent 12750524
TRANSFORM-BASED IMAGE DECODING/ENCODING APPARATUS AND APPARATUS FOR TRANSMITTING THEREFOR
1y 12m to grant Granted Sep 29, 2026
Patent 12744937
SIGNIFICANCE MAP ENCODING AND DECODING USING PARTITION SELECTION
1y 11m to grant Granted Sep 22, 2026
Patent 12744984
CAMERA SYSTEM FOR USE IN HARSH ENVIRONMENTS
1y 6m to grant Granted Sep 22, 2026
Patent 12739423
SUBBLOCK-BASED TEMPORAL MOTION VECTOR PREDICTION
1y 11m to grant Granted Sep 15, 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
80%
Grant Probability
91%
With Interview (+11.0%)
2y 7m (~9m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 887 resolved cases by this examiner. Grant probability derived from career allowance rate.

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