Prosecution Insights
Last updated: August 17, 2026
Application No. 18/724,595

IMAGE ENCODING/DECODING METHOD AND DEVICE, AND RECORDING MEDIUM ON WHICH BITSTREAM IS STORED

Final Rejection §103
Filed
Feb 18, 2025
Priority
Dec 29, 2021 — RE 10-2021-0190995 +1 more
Examiner
KIM, MATTHEW DAVID
Art Unit
2483
Tech Center
2400 — Computer Networks
Assignee
LG Electronics Inc.
OA Round
2 (Final)
74%
Grant Probability
Favorable
3-4
OA Rounds
9m
Est. Remaining
89%
With Interview

Examiner Intelligence

Grants 74% — above average
74%
Career Allowance Rate
221 granted / 300 resolved
+15.7% vs TC avg
Moderate +15% lift
Without
With
+14.9%
Interview Lift
resolved cases with interview
Typical timeline
2y 3m
Avg Prosecution
15 currently pending
Career history
316
Total Applications
across all art units

Statute-Specific Performance

§101
3.2%
-36.8% vs TC avg
§103
69.1%
+29.1% vs TC avg
§102
6.8%
-33.2% vs TC avg
§112
15.8%
-24.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 300 resolved cases

Office Action

§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 . Response to Amendment The amendment filed on 05/26/2026 has been entered. Claims 1-11 and 13 remain pending in the application. Applicant’s amendments to the claims have overcome the 35 U.S.C. 112(b) and 101 rejection(s) set forth in the previous office action. Response to Arguments Applicant’s arguments with respect to the 35 U.S.C. 103 rejections for claims 1-11 and 13 have been considered but are moot because the arguments are directed towards amended claim language, addressed on new grounds of rejection below. 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 taught 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. The factual inquiries set forth in Graham v. John Deere Co., 383 U.S. 1, 148 USPQ 459 (1966), that are applied for establishing a background for determining obviousness under 35 U.S.C. 103 are summarized as follows: 1. Determining the scope and contents of the prior art. 2. Ascertaining the differences between the prior art and the claims at issue. 3. Resolving the level of ordinary skill in the pertinent art. 4. Considering objective evidence present in the application indicating obviousness or nonobviousness. Claim(s) 1-5, 7-9, 11, and 13 is/are rejected under 35 U.S.C. 103 as being unpatentable over Chuang et al. (US 20170374369) (hereinafter Chuang) in view of Kim (US 20210006778) (hereinafter Kim), further in view of Deng et al. (US 20220248025) (hereinafter Deng), further in view of Vanam et al. (US 20190373285) (hereinafter Vanam). Regarding claim 1, Chuang teaches An image decoding method, the method comprising: deriving an intra prediction mode of a current block based on a derivation mode, wherein the derivation mode includes at least one of a first derivation mode and a second derivation mode (see Chuang paragraphs 3, 5, 15, 43, 48, 57, 63-65, and 86 regarding deriving based on reconstructed neighboring samples, an intra mode with a DIMD with a plurality of modes that could be derived, including a template region cost calculating mode for template regions around the current block, determining a reference sample, generating a prediction sample, and transmitting it as a bitstream), the second derivation mode represents a mode for deriving the intra prediction mode of the current block based on a cost calculated from difference between prediction samples and reconstructed samples in a template region adjacent to the current block; determining a reference sample of the current block; and based on the intra prediction mode and the reference sample, generating a prediction sample of the current block (see Chuang paragraphs 3, 5, 15, 43, 48, 57, 63-65, and 86 regarding deriving based on reconstructed neighboring samples, an intra mode with a DIMD with a plurality of modes that could be derived, including a template region cost calculating mode for template regions around the current block based on a difference between prediction samples and reconstructed samples, determining a reference sample, generating a prediction sample, and transmitting it as a bitstream), However, Chuang does not explicitly teach a first mode as needed for the limitations of claim 1. Kim, in a similar field of endeavor, teaches the first derivation mode represents a mode for deriving the intra prediction mode of the current block (see Kim paragraph 237 and 305 regarding deriving prediction mode from reconstructed neighboring samples of current block- in combination with Chuang, which derives prediction mode based on reconstructed neighboring samples, the prediction mode may be derived from reconstructed neighboring samples of current block for a first mode in addition to Chuang's second mode) Therefore, it would have been obvious to a person of ordinary skill in the art before the effective filing date of the application to modify the teaching of Chuang to include the teaching of Kim so that in combination with Chuang, which derives prediction mode based on reconstructed neighboring samples, the prediction mode may be derived from reconstructed neighboring samples of current block for a first mode in addition to Chuang's second mode. One would be motivated to combine these teachings in order to enhance coding efficiency through prediction techniques (see Kim paragraph 237 and 305). However, Chuang and Kim does not explicitly teach a gradient as needed for the limitations of claim 1. Deng, in a similar field of endeavor, teaches [deriving an intra prediction mode] based on a gradient calculated from a reconstructed neighboring sample of the current block (see Deng paragraph 169 regarding deriving an intra prediction mode of a current block based on a gradient calculated from a reconstructed neighboring sample- in combination with Chuang and Kim, the deriving of the intra prediction mode may be based on a gradient from a reconstructed neighboring sample), and Therefore, it would have been obvious to a person of ordinary skill in the art before the effective filing date of the application to modify the teaching of Chuang and Kim to include the teaching of Kim so that in combination with Chuang and Kim, the deriving of the intra prediction mode may be based on a gradient from a reconstructed neighboring sample. One would be motivated to combine these teachings in order to enhance coding efficiency through prediction derivation techniques (see Deng paragraph 169). However, Chuang, Kim, and Deng does not explicitly teach a gradient as needed for the limitations of claim 1. Vanam, in a similar field of endeavor, teaches wherein based on an intra prediction mode derived by using the first derivation mode or the second derivation mode being a planar mode, parsing for a flag indicating whether the planar mode is used is skipped (see Vanam paragraph 104 regarding skipping the signaling of a planar mode being used based on particular modes being used, and the decoder deriving the mode being used rather than parsing for signaling- in combination with Chuang and Kim, the method may skip parsing for a flag indicating planar mode based on the first or second derivation mode being used). Therefore, it would have been obvious to a person of ordinary skill in the art before the effective filing date of the application to modify the teaching of Chuang, Kim, and Deng to include the teaching of Kim so that in combination with Chuang and Kim, the method may skip parsing for a flag indicating planar mode based on the first or second derivation mode being used. One would be motivated to combine these teachings in order to enhance coding efficiency through prediction derivation techniques (see Vanam paragraph 104). Regarding claim 2, the combination of Chuang, Kim, Vanam, and Zhao teaches all aforementioned limitations of claim 1, and is analyzed as previously discussed. Furthermore, the combination of Chuang, Kim, Vanam, and Zhao teaches wherein deriving the intra prediction mode of the current block includes: configuring a first candidate list including a plurality of MPM candidates (see Chuang paragraphs 3, 5, 15, 43, 48, 57, 63-65, and 86 regarding deriving based on reconstructed neighboring samples, an intra mode with a DIMD with a plurality of modes that could be derived, including a template region cost calculating mode for template regions around the current block, and configuring a candidate list including a plurality of MPM candidates); and configuring a second candidate list including remaining intra prediction modes excluding the plurality of MPM candidates (see Kim paragraphs 251, 268, and 278 regarding a second candidate list of non-MPM candidates in addition to MPM list). One would be motivated to combine these teachings in order to enhance coding efficiency through prediction techniques (see Kim paragraph 237 and 305). Regarding claim 3, the combination of Chuang, Kim, Vanam, and Zhao teaches all aforementioned limitations of claim 2, and is analyzed as previously discussed. Furthermore, the combination of Chuang, Kim, Vanam, and Zhao teaches wherein: an intra prediction mode derived by using the first derivation mode is added to the second candidate list based on whether a predefined condition is satisfied (see Chuang paragraphs 3, 5, 10, 15, 43, 48, 57, 63-65, and 86 regarding performing redundancy test before adding mode to candidate list- in combination with Kim, the redundancy test can be performed before adding a candidate to second list from the first mode). Regarding claim 4, the combination of Chuang, Kim, Vanam, and Zhao teaches all aforementioned limitations of claim 3, and is analyzed as previously discussed. Furthermore, the combination of Chuang, Kim, Vanam, and Zhao teaches wherein: when the first derivation mode is activated, the intra prediction mode derived by using the first derivation mode is added to the second candidate list, a largest index is allocated to the intra prediction mode derived by using the first derivation mode among intra prediction modes included in the second candidate list (see Kim paragraph 237, 251, 268, 278, and 305 regarding deriving prediction mode from reconstructed neighboring samples of current block, a second candidate list of non-MPM candidates in addition to MPM list, and assigning index based on adaptive priority, in broadly, a largest, most prominent index). One would be motivated to combine these teachings in order to enhance coding efficiency through prediction techniques (see Kim paragraph 237 and 305). Regarding claim 5, the combination of Chuang, Kim, Vanam, and Zhao teaches all aforementioned limitations of claim 3, and is analyzed as previously discussed. Furthermore, the combination of Chuang, Kim, Vanam, and Zhao teaches wherein: when the first derivation mode is activated and only one intra prediction mode is derived by using the first derivation mode, the intra prediction mode derived by using the first derivation mode is added to the second candidate list, a largest index is allocated to the intra prediction mode derived by using the first derivation mode among intra prediction modes included in the second candidate list (see Kim paragraph 237, 251, 268, 278, and 305 regarding deriving prediction mode from reconstructed neighboring samples of current block, a second candidate list of non-MPM candidates in addition to MPM list, and assigning index based on adaptive priority, in broadly, a largest, most prominent index, including case where only one mode is derived using the first derivation mode). One would be motivated to combine these teachings in order to enhance coding efficiency through prediction techniques (see Kim paragraph 237 and 305). Regarding claim 7, the combination of Chuang, Kim, Vanam, and Zhao teaches all aforementioned limitations of claim 2, and is analyzed as previously discussed. Furthermore, the combination of Chuang, Kim, Vanam, and Zhao teaches wherein: an intra prediction mode derived by using the second derivation mode is added to the second candidate list based on whether a predefined condition is satisfied (see Chuang paragraphs 3, 5, 10, 15, 43, 48, 57, 63-65, and 86 regarding performing redundancy test before adding mode to candidate list- in combination with Kim, the redundancy test can be performed before adding a candidate to second list from the second mode). Regarding claim 8, the combination of Chuang, Kim, Vanam, and Zhao teaches all aforementioned limitations of claim 7, and is analyzed as previously discussed. Furthermore, the combination of Chuang, Kim, Vanam, and Zhao teaches wherein: when the second derivation mode is activated, the intra prediction mode derived by using the second derivation mode is added to the second candidate list, a largest index is allocated to the intra prediction mode derived by using the second derivation mode among intra prediction modes included in the second candidate list (see Kim paragraph 237, 251, 268, 278, and 305 regarding deriving prediction mode from reconstructed neighboring samples of current block, a second candidate list of non-MPM candidates in addition to MPM list, and assigning index based on adaptive priority, in broadly, a largest, most prominent index- this may also be for modes derived be second derivation mode). One would be motivated to combine these teachings in order to enhance coding efficiency through prediction techniques (see Kim paragraph 237 and 305). Regarding claim 9, the combination of Chuang, Kim, Vanam, and Zhao teaches all aforementioned limitations of claim 7, and is analyzed as previously discussed. Furthermore, the combination of Chuang, Kim, Vanam, and Zhao teaches wherein: when the second derivation mode is activated and only one intra prediction mode is derived by using the second derivation mode, the intra prediction mode derived by using the second derivation mode is added to the second candidate list, a largest index is allocated to the intra prediction mode derived by using the second derivation mode among intra prediction modes included in the second candidate list (see Kim paragraph 237, 251, 268, 278, and 305 regarding deriving prediction mode from reconstructed neighboring samples of current block, a second candidate list of non-MPM candidates in addition to MPM list, and assigning index based on adaptive priority, in broadly, a largest, most prominent index- this may also be for modes derived be second derivation mode including case where only one mode is derived using the second derivation mode). One would be motivated to combine these teachings in order to enhance coding efficiency through prediction techniques (see Kim paragraph 237 and 305). Regarding claim 11, Chuang teaches An image encoding method, the method comprising: determining an intra prediction mode of a current block, wherein the intra prediction mode of the current block is determined based on a determination mode, wherein the determination mode includes at least one of a first determination mode and a second determination mode (see Chuang paragraphs 3, 5, 15, 43, 48, 57, 63-65, and 86 regarding deriving based on reconstructed neighboring samples, an intra mode with a DIMD with a plurality of modes that could be derived, including a template region cost calculating mode for template regions around the current block, determining a reference sample, generating a prediction sample, and transmitting it as a bitstream), the second determination mode represents a mode for determining the intra prediction mode of the current block based on a cost calculated from difference between prediction samples and reconstructed samples in a template region adjacent to the current block; determining a reference sample of the current block; and based on the intra prediction mode and the reference sample, generating a prediction sample of the current block (see Chuang paragraphs 3, 5, 15, 43, 48, 57, 63-65, and 86 regarding deriving based on reconstructed neighboring samples, an intra mode with a DIMD with a plurality of modes that could be derived, including a template region cost calculating mode for template regions around the current block based on a difference between prediction samples and reconstructed samples, determining a reference sample, generating a prediction sample, and transmitting it as a bitstream), However, Chuang does not explicitly teach a first mode as needed for the limitations of claim 11. Kim, in a similar field of endeavor, teaches the first determination mode represents a mode for determining the intra prediction mode of the current block (see Kim paragraph 237 and 305 regarding deriving prediction mode from reconstructed neighboring samples of current block- in combination with Chuang, which derives prediction mode based on reconstructed neighboring samples, the prediction mode may be derived from reconstructed neighboring samples of current block for a first mode in addition to Chuang's second mode) Therefore, it would have been obvious to a person of ordinary skill in the art before the effective filing date of the application to modify the teaching of Chuang to include the teaching of Kim so that in combination with Chuang, which derives prediction mode based on reconstructed neighboring samples, the prediction mode may be derived from reconstructed neighboring samples of current block for a first mode in addition to Chuang's second mode. One would be motivated to combine these teachings in order to enhance coding efficiency through prediction techniques (see Kim paragraph 237 and 305). However, Chuang and Kim does not explicitly teach a gradient as needed for the limitations of claim 11. Deng, in a similar field of endeavor, teaches [deriving an intra prediction mode] based on a gradient calculated from a reconstructed neighboring sample of the current block (see Deng paragraph 169 regarding deriving an intra prediction mode of a current block based on a gradient calculated from a reconstructed neighboring sample- in combination with Chuang and Kim, the deriving of the intra prediction mode may be based on a gradient from a reconstructed neighboring sample), and Therefore, it would have been obvious to a person of ordinary skill in the art before the effective filing date of the application to modify the teaching of Chuang and Kim to include the teaching of Kim so that in combination with Chuang and Kim, the deriving of the intra prediction mode may be based on a gradient from a reconstructed neighboring sample. One would be motivated to combine these teachings in order to enhance coding efficiency through prediction derivation techniques (see Deng paragraph 169). However, Chuang, Kim, and Deng does not explicitly teach a gradient as needed for the limitations of claim 11. Vanam, in a similar field of endeavor, teaches wherein based on an intra prediction mode derived by using the first derivation mode or the second derivation mode being a planar mode, parsing for a flag indicating whether the planar mode is used is skipped (see Vanam paragraph 104 regarding skipping the signaling of a planar mode being used based on particular modes being used, and the decoder deriving the mode being used rather than parsing for signaling- in combination with Chuang and Kim, the method may skip parsing for a flag indicating planar mode based on the first or second derivation mode being used). Therefore, it would have been obvious to a person of ordinary skill in the art before the effective filing date of the application to modify the teaching of Chuang, Kim, and Deng to include the teaching of Kim so that in combination with Chuang and Kim, the method may skip parsing for a flag indicating planar mode based on the first or second derivation mode being used. One would be motivated to combine these teachings in order to enhance coding efficiency through prediction derivation techniques (see Vanam paragraph 104). Regarding claim 13, Chuang teaches A method for transmitting data for image information, the method comprising: determining an intra prediction mode of a current block, wherein the intra prediction mode of the current block is determined based on a determination mode, wherein the determination mode includes at least one of a first determination mode and a second determination mode (see Chuang paragraphs 3, 5, 15, 43, 48, 57, 63-65, and 86 regarding deriving based on reconstructed neighboring samples, an intra mode with a DIMD with a plurality of modes that could be derived, including a template region cost calculating mode for template regions around the current block, determining a reference sample, generating a prediction sample, and transmitting it as a bitstream), the second determination mode represents a mode for determining the intra prediction mode of the current block based on a cost calculated from difference between prediction samples and reconstructed samples in a template region adjacent to the current block; determining a reference sample of the current block; based on the intra prediction mode and the reference sample, generating a prediction sample of the current block; generating a bitstream by encoding the current block based on the prediction sample; and transmitting data including the bitstream (see Chuang paragraphs 3, 5, 15, 43, 48, 57, 63-65, and 86 regarding deriving based on reconstructed neighboring samples, an intra mode with a DIMD with a plurality of modes that could be derived, including a template region cost calculating mode for template regions around the current block based on a difference between prediction samples and reconstructed samples, determining a reference sample, generating a prediction sample, and transmitting it as a bitstream), However, Chuang does not explicitly teach an first mode as needed for the limitations of claim 13. Kim, in a similar field of endeavor, teaches the first determination mode represents a mode for determining the intra prediction mode of the current block (see Kim paragraph 237 and 305 regarding deriving prediction mode from reconstructed neighboring samples of current block- in combination with Chuang, which derives prediction mode based on reconstructed neighboring samples, the prediction mode may be derived from reconstructed neighboring samples of current block for a first mode in addition to Chuang's second mode) Therefore, it would have been obvious to a person of ordinary skill in the art before the effective filing date of the application to modify the teaching of Chuang to include the teaching of Kim so that in combination with Chuang, which derives prediction mode based on reconstructed neighboring samples, the prediction mode may be derived from reconstructed neighboring samples of current block for a first mode in addition to Chuang's second mode. One would be motivated to combine these teachings in order to enhance coding efficiency through prediction techniques (see Kim paragraph 237 and 305). However, Chuang and Kim does not explicitly teach a gradient as needed for the limitations of claim 13. Deng, in a similar field of endeavor, teaches [deriving an intra prediction mode] based on a gradient calculated from a reconstructed neighboring sample of the current block (see Deng paragraph 169 regarding deriving an intra prediction mode of a current block based on a gradient calculated from a reconstructed neighboring sample- in combination with Chuang and Kim, the deriving of the intra prediction mode may be based on a gradient from a reconstructed neighboring sample), and Therefore, it would have been obvious to a person of ordinary skill in the art before the effective filing date of the application to modify the teaching of Chuang and Kim to include the teaching of Kim so that in combination with Chuang and Kim, the deriving of the intra prediction mode may be based on a gradient from a reconstructed neighboring sample. One would be motivated to combine these teachings in order to enhance coding efficiency through prediction derivation techniques (see Deng paragraph 169). However, Chuang, Kim, and Deng does not explicitly teach a gradient as needed for the limitations of claim 13. Vanam, in a similar field of endeavor, teaches wherein based on an intra prediction mode derived by using the first derivation mode or the second derivation mode being a planar mode, parsing for a flag indicating whether the planar mode is used is skipped (see Vanam paragraph 104 regarding skipping the signaling of a planar mode being used based on particular modes being used, and the decoder deriving the mode being used rather than parsing for signaling- in combination with Chuang and Kim, the method may skip parsing for a flag indicating planar mode based on the first or second derivation mode being used). Therefore, it would have been obvious to a person of ordinary skill in the art before the effective filing date of the application to modify the teaching of Chuang, Kim, and Deng to include the teaching of Kim so that in combination with Chuang and Kim, the method may skip parsing for a flag indicating planar mode based on the first or second derivation mode being used. One would be motivated to combine these teachings in order to enhance coding efficiency through prediction derivation techniques (see Vanam paragraph 104). Claim(s) 6 and 10 is/are rejected under 35 U.S.C. 103 as being unpatentable over Chuang et al. (US 20170374369) (hereinafter Chuang) in view of Kim (US 20210006778) (hereinafter Kim), further in view of Deng et al. (US 20220248025) (hereinafter Deng), further in view of Vanam et al. (US 20190373285) (hereinafter Vanam), further in view of Zhao et al. (US 20200112722) (hereinafter Zhao). Regarding claim 6, the combination of Chuang, Kim, Vanam, and Zhao teaches all aforementioned limitations of claim 3, and is analyzed as previously discussed. Furthermore, the combination of Chuang, Kim, Vanam, and Zhao teaches wherein: when the first derivation mode is activated, only one intra prediction mode is derived by using the first derivation mode (see Kim paragraph 237, 251, 268, 278, and 305 regarding deriving prediction mode from reconstructed neighboring samples of current block, a second candidate list of non-MPM candidates in addition to MPM list, and assigning index based on adaptive priority, in broadly, a largest, most prominent index, including case where only one mode is derived using the first derivation mode) and the intra prediction mode derived by using the first derivation mode is added to the second candidate list, a largest index is allocated to the intra prediction mode derived by using the first derivation mode among intra prediction modes included in the second candidate list (see Kim paragraph 237, 251, 268, 278, and 305 regarding deriving prediction mode from reconstructed neighboring samples of current block, a second candidate list of non-MPM candidates in addition to MPM list, and assigning index based on adaptive priority, in broadly, a largest, most prominent index, including case where only one mode is derived using the first derivation mode). However, the combination of Chuang, Kim, Vanam, and Zhao does not explicitly teach a reference line as needed for the limitations of claim 6. Zhao, in a similar field of endeavor, teaches a reference line adjacent to the current block is used for an intra prediction of the current block (see Zhao paragraph figure 2 and paragraphs 25 and 30 regarding using a reference line adjacent to the current block for intra prediction of the current block- in combination with Chuang, Kim, Vanam, and Zhao, a reference line adjacent to the current block may be used for an intra prediction of the current block), Therefore, it would have been obvious to a person of ordinary skill in the art before the effective filing date of the application to modify the combination of Chuang, Kim, Vanam, and Zhao to include the teaching of Zhao so that in combination with Chuang, Kim, Vanam, and Zhao, a reference line adjacent to the current block may be used for an intra prediction of the current block. One would be motivated to combine these teachings in order to enhance the efficiency of intra coding techniques (see Zhao paragraph figure 2 and paragraphs 25 and 30). Regarding claim 10, the combination of Chuang, Kim, Vanam, and Zhao teaches all aforementioned limitations of claim 7, and is analyzed as previously discussed. Furthermore, the combination of Chuang, Kim, Vanam, and Zhao teaches wherein: when the second derivation mode is activated, only one intra prediction mode is derived by using the second derivation mode (see Kim paragraph 237, 251, 268, 278, and 305 regarding deriving prediction mode from reconstructed neighboring samples of current block, a second candidate list of non-MPM candidates in addition to MPM list, and assigning index based on adaptive priority, in broadly, a largest, most prominent index- this may also be for modes derived be second derivation mode including case where only one mode is derived using the second derivation mode) and the intra prediction mode derived by using the second derivation mode is added to the second candidate list, a largest index is allocated to the intra prediction mode derived by using the second derivation mode among intra prediction modes included in the second candidate list (see Kim paragraph 237, 251, 268, 278, and 305 regarding deriving prediction mode from reconstructed neighboring samples of current block, a second candidate list of non-MPM candidates in addition to MPM list, and assigning index based on adaptive priority, in broadly, a largest, most prominent index- this may also be for modes derived be second derivation mode including case where only one mode is derived using the second derivation mode). However, the combination of Chuang, Kim, Vanam, and Zhao does not explicitly teach a reference line as needed for the limitations of claim 10. Zhao, in a similar field of endeavor, teaches a reference line adjacent to the current block is used for an intra prediction of the current block (see Zhao paragraph figure 2 and paragraphs 25 and 30 regarding using a reference line adjacent to the current block for intra prediction of the current block- in combination with Chuang, Kim, Vanam, and Zhao, a reference line adjacent to the current block may be used for an intra prediction of the current block), Therefore, it would have been obvious to a person of ordinary skill in the art before the effective filing date of the application to modify the combination of Chuang, Kim, Vanam, and Zhao to include the teaching of Zhao so that in combination with Chuang, Kim, Vanam, and Zhao, a reference line adjacent to the current block may be used for an intra prediction of the current block. One would be motivated to combine these teachings in order to enhance the efficiency of intra coding techniques (see Zhao paragraph figure 2 and paragraphs 25 and 30). Conclusion Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). 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 Matthew D Kim whose telephone number is (571)272-3527. The examiner can normally be reached Monday - Friday: 9:30am - 5:30pm 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, Joseph Ustaris can be reached at (571) 272-7383. 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. /MATTHEW DAVID KIM/Primary Examiner, Art Unit 2483
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Prosecution Timeline

Feb 18, 2025
Application Filed
Feb 25, 2026
Non-Final Rejection mailed — §103
May 26, 2026
Response Filed
Aug 06, 2026
Final Rejection mailed — §103 (current)

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