Prosecution Insights
Last updated: April 19, 2026
Application No. 19/006,002

VIDEO SIGNAL PROCESSING METHOD AND DEVICE

Non-Final OA §DP
Filed
Dec 30, 2024
Examiner
WONG, ALLEN C
Art Unit
2488
Tech Center
2400 — Computer Networks
Assignee
Kt Corporation
OA Round
1 (Non-Final)
83%
Grant Probability
Favorable
1-2
OA Rounds
2y 11m
To Grant
95%
With Interview

Examiner Intelligence

Grants 83% — above average
83%
Career Allow Rate
669 granted / 805 resolved
+25.1% vs TC avg
Moderate +12% lift
Without
With
+11.8%
Interview Lift
resolved cases with interview
Typical timeline
2y 11m
Avg Prosecution
27 currently pending
Career history
832
Total Applications
across all art units

Statute-Specific Performance

§101
12.4%
-27.6% vs TC avg
§103
41.6%
+1.6% vs TC avg
§102
16.5%
-23.5% vs TC avg
§112
9.8%
-30.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 805 resolved cases

Office Action

§DP
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 . Information Disclosure Statement The information disclosure statement (IDS) submitted on 12/30/24 is in compliance with the provisions of 37 CFR 1.97. Accordingly, the information disclosure statement has been considered by the examiner. Double Patenting The nonstatutory double patenting rejection is based on a judicially created doctrine grounded in public policy (a policy reflected in the statute) so as to prevent the unjustified or improper timewise extension of the “right to exclude” granted by a patent and to prevent possible harassment by multiple assignees. A nonstatutory double patenting rejection is appropriate where the conflicting claims are not identical, but at least one examined application claim is not patentably distinct from the reference claim(s) because the examined application claim is either anticipated by, or would have been obvious over, the reference claim(s). See, e.g., In re Berg, 140 F.3d 1428, 46 USPQ2d 1226 (Fed. Cir. 1998); In re Goodman, 11 F.3d 1046, 29 USPQ2d 2010 (Fed. Cir. 1993); In re Longi, 759 F.2d 887, 225 USPQ 645 (Fed. Cir. 1985); In re Van Ornum, 686 F.2d 937, 214 USPQ 761 (CCPA 1982); In re Vogel, 422 F.2d 438, 164 USPQ 619 (CCPA 1970); In re Thorington, 418 F.2d 528, 163 USPQ 644 (CCPA 1969). A timely filed terminal disclaimer in compliance with 37 CFR 1.321(c) or 1.321(d) may be used to overcome an actual or provisional rejection based on nonstatutory double patenting provided the reference application or patent either is shown to be commonly owned with the examined application, or claims an invention made as a result of activities undertaken within the scope of a joint research agreement. See MPEP § 717.02 for applications subject to examination under the first inventor to file provisions of the AIA as explained in MPEP § 2159. See MPEP § 2146 et seq. for applications not subject to examination under the first inventor to file provisions of the AIA . A terminal disclaimer must be signed in compliance with 37 CFR 1.321(b). The filing of a terminal disclaimer by itself is not a complete reply to a nonstatutory double patenting (NSDP) rejection. A complete reply requires that the terminal disclaimer be accompanied by a reply requesting reconsideration of the prior Office action. Even where the NSDP rejection is provisional the reply must be complete. See MPEP § 804, subsection I.B.1. For a reply to a non-final Office action, see 37 CFR 1.111(a). For a reply to final Office action, see 37 CFR 1.113(c). A request for reconsideration while not provided for in 37 CFR 1.113(c) may be filed after final for consideration. See MPEP §§ 706.07(e) and 714.13. The USPTO Internet website contains terminal disclaimer forms which may be used. Please visit www.uspto.gov/patent/patents-forms. The actual filing date of the application in which the form is filed determines what form (e.g., PTO/SB/25, PTO/SB/26, PTO/AIA /25, or PTO/AIA /26) should be used. A web-based eTerminal Disclaimer may be filled out completely online using web-screens. An eTerminal Disclaimer that meets all requirements is auto-processed and approved immediately upon submission. For more information about eTerminal Disclaimers, refer to www.uspto.gov/patents/apply/applying-online/eterminal-disclaimer. Claims 10-13 are rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1-4 of U.S. Patent No. 12,219,134 in view of Sim (US 10,477,205). With regards to claim 10, claim 10 of present Application ‘002 is similar to claim 1 of Patent ‘134 in that claim 1 of Patent ‘134 discloses most of the limitations of claim 10 of present Application ‘002. Peruse the table below. Claim 1 of Patent ‘134 does not disclose the limitation of "...obtaining a reconstruction sample of the chroma block based on the prediction sample". However, Sim teaches obtaining a reconstruction sample of the chroma block based on the prediction sample (col.16, ln.45-50, Sim discloses that the second chrominance block can be reconstructed by using a sample of the first chrominance block, wherein the sample of the first chrominance block can be predicted by using a sample of the luminance block, and thus, Sim discloses obtaining a reconstruction sample of the chroma block based on the prediction sample since the reconstruction sample of the second chroma block is obtained by the utilization of the predicted sample of the first chrominance block). Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to combine the teachings of claim 1 of Patent ‘134 and Sim together as a whole for improving the efficiency of video data compression and decompression (Sim’s col.2, ln.14-16). Claim 11 of present Application ‘002 is similar to claim 2 of Patent ‘134. Thus, claim 11 of present Application ‘002 is anticipated by claim 2 of Patent ‘134. Claim 12 of present Application ‘002 is similar to claim 3 of Patent ‘134. Thus, claim 12 of present Application ‘002 is anticipated by claim 3 of Patent ‘134. Claim 13 of present Application ‘002 is similar to claim 4 of Patent ‘134. Thus, claim 13 of present Application ‘002 is anticipated by claim 4 of Patent ‘134. Claims 14-15 are rejected on the ground of nonstatutory double patenting as being unpatentable over claims 5-6 of U.S. Patent No. 12,219,134 in view of Ma (US 2021/0329261). With regards to claim 14, claim 14 of present Application ‘002 is similar to claim 5 of Patent ‘134 in that claim 5 of Patent ‘134 discloses most of the limitations of claim 14 of present Application ‘002. Peruse the table below. Claim 5 of Patent ‘134 does not disclose the limitation "obtaining a residual sample of the chroma block by subtracting the prediction sample from an original sample". However, Ma teaches obtaining a residual sample of the chroma block by subtracting the prediction sample from an original sample (paragraph [279], Ma discloses that to obtain residual information of the chroma block, a subtraction process is performed to subtract prediction information (ie. sample) of the chroma block from original information (ie. sample) of the chroma block to ascertain residual information (ie. sample) of the chroma block, thus, Ma discloses obtaining a residual sample of the chroma block by subtracting the prediction sample from an original sample). Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to combine the teachings of claim 5 of Patent ‘134 and Ma together as a whole for permitting efficient storage and transmission of video data (Ma’s paragraph [67]). With regards to claim 15, claim 15 of present Application ‘002 is similar to claim 6 of Patent ‘134 in that claim 6 of Patent ‘134 discloses most of the limitations of claim 15 of present Application ‘002. Peruse the table below. Claim 6 of Patent ‘134 does not disclose the limitation "obtaining a residual sample of the chroma block by subtracting the prediction sample from an original sample". However, Ma teaches obtaining a residual sample of the chroma block by subtracting the prediction sample from an original sample (paragraph [279], Ma discloses that to obtain residual information of the chroma block, a subtraction process is performed to subtract prediction information (ie. sample) of the chroma block from original information (ie. sample) of the chroma block to ascertain residual information (ie. sample) of the chroma block, thus, Ma discloses obtaining a residual sample of the chroma block by subtracting the prediction sample from an original sample). Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to combine the teachings of claim 6 of Patent ‘134 and Ma together as a whole for permitting efficient storage and transmission of video data (Ma’s paragraph [67]). Peruse the table below. Present Application 19/006,002 US Patent No. 12,219,134 Claim 10. A method of decoding a video, comprising: determining whether a CCLM (Cross-Component Linear Model) mode is applied to a chroma block; in response to the CCLM mode being applied to the chroma block, deriving a CCLM parameter based on neighboring chroma samples of the chroma block and filtered neighboring luma samples; obtaining a prediction sample of the chroma block based on a down-sampled luma sample and the CCLM parameter; and obtaining a reconstruction sample of the chroma block based on the prediction sample, wherein the down-sampled luma sample is obtained based on a collocated luma sample in a luma block and neighboring luma samples adjacent to the collocated luma sample, a position of the collocated luma sample in the luma block being corresponding to a position of the prediction sample in the chroma block, wherein when a neighboring luma sample adjacent to the collocated luma sample is unavailable, the neighboring luma sample is set equal to the collocated luma sample, wherein the neighboring chroma samples are positioned at sub-sampled positions outside the chroma block, and wherein a subsampling rate for determining the sub-sampled positions is determined based on at least one of a size or a shape of the chroma block. Claim 1. A method of decoding a video, method comprising: determining whether a CCLM (Cross-Component Linear Model) mode is applied to a chroma block; in response to the CCLM mode being applied to the chroma block, deriving a CCLM parameter based on neighboring chroma samples of the chroma block and filtered neighboring luma samples; and obtaining a prediction sample of the chroma block based on a down-sampled luma sample and the CCLM parameter, wherein the down-sampled luma sample is obtained based on a collocated luma sample in a luma block and neighboring luma samples adjacent to the collocated luma sample, a position of the collocated luma sample in the luma block being corresponding to the prediction sample in the chroma block, wherein when a neighboring luma sample adjacent to the collocated luma sample is unavailable, the neighboring luma sample is set equal to the collocated luma sample, wherein the neighboring chroma samples are positioned at sub-sampled positions outside the chroma block, and wherein a subsampling rate for determining the sub-sampled positions is determined based on at least one of a size or a shape of the chroma block. Claim 11. The method of claim 10, wherein the filtered neighboring luma sample is generated by applying a down-sampling filter to a reference luma sample at a position corresponding to the neighboring chroma sample. Claim 2. The method of claim 1, wherein the filtered neighboring luma sample is generated by applying a down-sampling filter to a reference luma sample at a position corresponding to the neighboring chroma sample. Claim 12. The method of claim 11, wherein a type of the down-sampling filter applied to the reference luma sample is determined based on a type of a current image. Claim 3. The method of claim 2, wherein a type of the down-sampling filter applied to the reference luma sample is determined based on a type of a current image. Claim 13. The method of claim 12, wherein the type of the current image is determined either of a HDR (High Dynamic Range) type or a non-HDR type, and wherein a shape of the down-sample filter is different between when the current image is the HDR type and when the current image is the non-HDR type. Claim 4. The method of claim 3, wherein the type of the current image is determined either of a HDR (High Dynamic Range) type or a non-HDR type, wherein a shape of the down-sample filter is different between when the current image is the HDR type and when the current image is the non-HDR type. Claim 14. A method of encoding a video, comprising: deriving a CCLM (Cross-Component Linear Model) parameter based on neighboring chroma samples of a chroma block and filtered neighboring luma samples; obtaining a prediction sample of the chroma block based on a down-sampled luma sample and the CCLM parameter; obtaining a residual sample of the chroma block by subtracting the prediction sample from an original sample; and encoding information indicating whether a CCLM mode is applied to the chroma block, wherein the down-sampled luma sample is obtained based on a collocated luma sample in a luma block and neighboring luma samples adjacent to the collocated luma sample, a position of the collocated luma sample in the luma block being corresponding to a position of the prediction sample in the chroma block, wherein when a neighboring luma sample adjacent to the collocated luma sample is unavailable, the neighboring luma sample is set equal to the collocated luma sample, wherein the neighboring chroma samples are positioned at sub-sampled positions outside the chroma block, and wherein a subsampling rate for determining the sub-sampled positions is determined based on at least one of a size or a shape of the chroma block. Claim 5. A video encoding method comprising: deriving a CCLM (Cross-Component Linear Model) parameter based on neighboring chroma samples of a chroma block and filtered neighboring luma samples; obtaining a prediction sample of the chroma block based on a down-sampled luma sample and the CCLM parameter; and encoding information indicating whether a CCLM mode is applied to the chroma block, wherein the down-sampled luma sample is obtained based on a collocated luma sample in a luma block and neighboring luma samples adjacent to the collocated luma sample, a position of the collocated luma sample in the luma block being corresponding to the prediction sample in the chroma block, wherein when a neighboring luma sample adjacent to the collocated luma sample is unavailable, the neighboring luma sample is set equal to the collocated luma sample, wherein the neighboring chroma samples are positioned at sub-sampled positions outside the chroma block, and wherein a subsampling rate for determining the sub-sampled positions is determined based on at least one of a size or a shape of the chroma block. Claim 15. A device for transmitting compressed video data, the device comprising: a processor configured to obtain the compressed video data; and a transmitting unit configured to transmit the compressed video data, wherein obtaining the compressed video comprises: deriving a CCLM (Cross-Component Linear Model) parameter based on neighboring chroma samples of a chroma block and filtered neighboring luma samples; obtaining a prediction sample of the chroma block based on a down-sampled luma sample and the CCLM parameter; obtaining a residual sample of the chroma block by subtracting the prediction sample from an original sample; and encoding information indicating whether a CCLM mode is applied to the current block, wherein the down-sampled luma sample is obtained based on a collocated luma sample in a luma block and neighboring luma samples adjacent to the collocated luma sample, a position of the collocated luma sample in the luma block being corresponding to a position of the prediction sample in the chroma block, wherein when a neighboring luma sample adjacent to the collocated luma sample is unavailable, the neighboring luma sample is set equal to the collocated luma sample, wherein the neighboring chroma samples are positioned at sub-sampled positions outside the chroma block, and wherein a subsampling rate for determining the sub-sampled positions is determined based on at least one of a size or a shape of the chroma block. Claim 6. A device for transmitting compressed video data, the device comprising: a processor configured to obtain the compressed video data; and a transmitting unit configured to transmit the compressed video data, wherein obtaining the compressed video comprises: deriving a CCLM (Cross-Component Linear Model) parameter based on neighboring chroma samples of a chroma block and filtered neighboring luma samples; obtaining a prediction sample of the chroma block based on a down-sampled luma sample and the CCLM parameter; and encoding information indicating whether a CCLM mode is applied to the current block, wherein the down-sampled luma sample is obtained based on a collocated luma sample in a luma block and neighboring luma samples adjacent to the collocated luma sample, a position of the collocated luma sample in the luma block being corresponding to the prediction sample in the chroma block, wherein when a neighboring luma sample adjacent to the collocated luma sample is unavailable, the neighboring luma sample is set equal to the collocated luma sample, wherein the neighboring chroma samples are positioned at sub-sampled positions outside the chroma block, and wherein a subsampling rate for determining the sub-sampled positions is determined based on at least one of a size or a shape of the chroma block. Contact Information Any inquiry concerning this communication or earlier communications from the examiner should be directed to ALLEN C WONG whose telephone number is (571)272-7341. The examiner can normally be reached on Flex Monday-Thursday 9:30am-7:30pm. 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, Sath V Perungavoor can be reached on 571-272-7455. 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. /ALLEN C WONG/Primary Examiner, Art Unit 2488
Read full office action

Prosecution Timeline

Dec 30, 2024
Application Filed
Jan 06, 2026
Non-Final Rejection — §DP (current)

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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
83%
Grant Probability
95%
With Interview (+11.8%)
2y 11m
Median Time to Grant
Low
PTA Risk
Based on 805 resolved cases by this examiner. Grant probability derived from career allow rate.

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