Prosecution Insights
Last updated: April 19, 2026
Application No. 19/186,131

ENTROPY CODING SUPPORTING MODE SWITCHING

Non-Final OA §102
Filed
Apr 22, 2025
Examiner
LIMA, FABIO S
Art Unit
2486
Tech Center
2400 — Computer Networks
Assignee
Dolby Video Compression LLC
OA Round
1 (Non-Final)
77%
Grant Probability
Favorable
1-2
OA Rounds
2y 1m
To Grant
92%
With Interview

Examiner Intelligence

Grants 77% — above average
77%
Career Allow Rate
319 granted / 415 resolved
+18.9% vs TC avg
Moderate +15% lift
Without
With
+14.8%
Interview Lift
resolved cases with interview
Fast prosecutor
2y 1m
Avg Prosecution
32 currently pending
Career history
447
Total Applications
across all art units

Statute-Specific Performance

§101
2.7%
-37.3% vs TC avg
§103
45.8%
+5.8% vs TC avg
§102
19.1%
-20.9% vs TC avg
§112
19.7%
-20.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 415 resolved cases

Office Action

§102
DETAILED ACTION Notice of Pre-AIA or AIA Status The present application is being examined under the pre-AIA first to invent provisions. 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 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) the invention was known or used by others in this country, or patented or described in a printed publication in this or a foreign country, before the invention thereof by the applicant for a patent. (b) the invention was patented or described in a printed publication in this or a foreign country or in public use or on sale in this country, more than one year prior to the date of application for patent in the United States. (e) the invention was described in (1) an application for patent, published under section 122(b), by another filed in the United States before the invention by the applicant for patent or (2) a patent granted on an application for patent by another filed in the United States before the invention by the applicant for patent, except that an international application filed under the treaty defined in section 351(a) shall have the effects for purposes of this subsection of an application filed in the United States only if the international application designated the United States and was published under Article 21(2) of such treaty in the English language. Claim 12 is rejected under 35 U.S.C. 102(b) as being anticipated by Marpe et al. (US 20050038837 Al), hereinafter referred to as Marpe. Regarding claims 12, this claim is directed to a non-transitory computer-readable medium for storing data associated with a video, comprising: a data stream generated by the feature encoding method (operations) which is a product by process claim limitation where the product is the data stream and the process is the method steps to generate the data stream. MPEP §2113 recites “Product-by-Process claims are not limited to the manipulations of the recited steps, only the structure implied by the steps”. Thus, the scope of the claim is the non-transitory computer-readable medium storing the data stream (with the structure implied by the method steps). The structure includes the information and samples manipulated by the steps. “To be given patentable weight, the printed matter and associated product must be in a functional relationship. A functional relationship can be found where the printed matter performs some function with respect to the product to which it is associated”. MPEP §2111.05(I)(A). When a claimed “non-transitory computer-readable medium” merely serves as a support for information or data, no functional relationship exists. MPEP §2111.05(III). The non-transitory computer-readable medium storing the claimed data stream in claim 12 merely serves as a support for the storage of the data stream and provides no functional relationship between the stored data stream and storage medium. Therefor the data stream, which scope is implied by the method steps, is non-functional descriptive material and given no patentable weight. MPEP §2111.05(III). Thus, the claim scope is just a non-transitory computer-readable medium storing data and is anticipated by Marple which recites a non-transitory computer-readable medium storing a data stream (See Marple, ¶[0137] ). Allowable Subject Matter Claims 2- 11 are allowed. The following is an Examiner's statement of reasons for allowance: The instant invention is related to an entropy-coding concept for coding video media content. Applicant uniquely claimed a distinct feature in the independent claim 2. The feature is wherein the selection depends on the activated one of the low-complexity mode and the high-efficiency mode, wherein the entropy decoder is configured such that each of the plurality of entropy decoding schemes involves arithmetic decoding of the symbols the respective entropy decoding scheme has been selected for, with the plurality of entropy decoding schemes differing from each other in using a different probability estimate in the arithmetic decoding and such that the plurality of entropy decoding schemes perform their probability sub-division on a common probability interval so as to decode the symbols from one common bitstream, wherein the entropy decoder is configured such that merely one probability interval width value R and offset state value V is managed for the plurality of entropy decoding schemes, wherein each symbol of the sequence of symbols is associated with a respective one of a plurality of symbol types, wherein for each symbol of a predetermined symbol type, in both the low-complexity mode and the high-efficiency mode, one of the plurality of entropy decoding schemes is selected, and the selection depends on a probability model associated with the predetermined symbol type and the probability model is updated depending on the symbols of the predetermined symbol type at a first update rate in case of the high-efficiency mode being activated, and at a second update rate lower than the first update rate in case of the low-complexity mode being activated. The closest prior art found were Marpe and Sole Rojas et al. (US 8,902,988 B2), hereinafter referred to as Sole Rojas. Marpe pertains to binarization schemes and coding schemes, in particular, to binarization and arithmetic coding schemes for use in video coding applications comprising a context modeler that adapts an actual bit or bin value probability distribution estimation in accordance with a predetermined context model type, which is associated with that bit, or bin (Marpe [0046]). Sole Rojals is directed to video coding and, more particularly, entropy coding for video coding comprising a context-modeling unit that updates the probability estimate associated with an assigned context in a joint context model within joint context model store. By continually updating the probability estimates of the joint context model to reflect the actual decoded values of the coefficients, the probability estimates for future coefficients assigned to the same contexts in the joint context model may be more accurate and result in further reduced bit decoding by arithmetic decoding unit (Sole Rojals Col. 26:34-43). However, the above prior art, either, singularly or in combination, fail to anticipate or render the above underlined limitations obvious. Independent claim 5, 8 and 11 recite limitations similar to the limitations, in question, discussed above. Therefore, independent claim 37 is allowable for analogous reasons. Dependent claims 2-4, 6, 7, 9 and 10 are allowed for the reasons concerning the independent claims. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. See PTO-892 for additional references. Any inquiry concerning this communication or earlier communications from the examiner should be directed to FABIO S LIMA whose telephone number is (571)270-0625. The examiner can normally be reached on Monday through Friday, 7:30 AM - 4:00 PM (EST). 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, JAMIE ATALA can be reached on (571)272-7384. 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. /FABIO S LIMA/Primary Examiner, Art Unit 2486
Read full office action

Prosecution Timeline

Apr 22, 2025
Application Filed
Mar 24, 2026
Non-Final Rejection — §102 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12604015
METHOD, APPARATUS, AND MEDIUM FOR VIDEO PROCESSING
2y 5m to grant Granted Apr 14, 2026
Patent 12593038
TEMPORAL PREDICTION OF PARAMETERS IN NON-LINEAR ADAPTIVE LOOP FILTER
2y 5m to grant Granted Mar 31, 2026
Patent 12593045
ENTROPY CODING-BASED FEATURE ENCODING/DECODING METHOD AND DEVICE, RECORDING MEDIUM HAVING BITSTREAM STORED THEREIN, AND METHOD FOR TRANSMITTING BITSTREAM
2y 5m to grant Granted Mar 31, 2026
Patent 12581099
INFORMATION PROCESSING DEVICE AND METHOD
2y 5m to grant Granted Mar 17, 2026
Patent 12581094
IMAGE SIGNAL ENCODING/DECODING METHOD AND DEVICE THEREFOR
2y 5m to grant Granted Mar 17, 2026
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
77%
Grant Probability
92%
With Interview (+14.8%)
2y 1m
Median Time to Grant
Low
PTA Risk
Based on 415 resolved cases by this examiner. Grant probability derived from career allow rate.

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