Inventor

JIZHENG XU

Inventor

US

Overview

2021–2026

Patent span

Electricity

Primary field (CPC H)

Patents· 395 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

H04Nprimary

H04NPictorial communication, e.g. television94%

G06TImage data processing or generation, in general2%

G06FElectric digital data processing1%

H03MCoding1%

G06VImage or video recognition or understanding1%

H04LTransmission of digital information, e.g. telegraphic communication0%

G06NComputing arrangements based on specific computational models0%

PatentTitleYear

12,581,090Quantization parameter for chroma deblocking filtering2026 12,581,086Merge with MVD based on geometry partition2026 12,568,201Bitstream conformance constraints for intra block copy in video coding2026 12,568,230Syntax signaling and parsing based on colour component2026 12,563,194Sub-block transform in transform skip mode2026 12,563,225Context coding for matrix-based intra prediction2026 12,556,742Features of base color index map mode for video and image coding and decoding2026 12,549,744Adjustments to encoding and decoding when switching color spaces2026 12,537,938Sub-block based motion candidate selection and signaling2026 12,531,991Coding of pictures containing slices and tiles2026 12,526,424Calculation in matrix-based intra prediction2026 12,519,945Matrix-based intra prediction using upsampling2026 12,519,968Motion vector range based on motion vector precision2026 12,513,291Prediction refinement for affine merge and affine motion vector prediction mode2025 12,513,290Chroma deblocking harmonization for video coding2025 12,477,130Use of offsets with adaptive colour transform coding tool2025 12,470,701Intra block copy buffer and palette predictor update2025 12,464,142Palette mode with intra block copy prediction2025 12,457,352Regression-based motion vector field based sub-block motion vector derivation2025 12,445,602Pruning method in different prediction mode2025 12,439,063Video decoder initialization information2025 12,432,355Using combined inter intra prediction in video processing2025 12,432,385Signaling in transform skip mode2025 12,432,350High level syntax for inter prediction with geometric partitioning2025 12,432,077Indication of digital medial integrity2025 12,432,345Boundary strength determination for deblocking filters in video processing2025 12,425,578Harmonization between different video process mode2025 12,425,589Simplified inter prediction with geometric partitioning2025 12,425,586Using quantization groups in video coding2025 12,418,647Using quantization groups in video coding2025 12,413,784Deblocking signaling in video coding2025 12,413,771Block vector prediction in video and image coding/decoding2025 12,407,829Transform coding based on matrix-based intra prediction2025 12,407,831Method, apparatus, and medium for video processing2025 12,407,812Deriving reference sample positions in video coding2025 12,395,661Signaling of slice types in video pictures headers2025 12,395,647Condition dependent video block partition2025 12,395,650General constraints information for video coding2025 12,395,623Intra coded video using quantized residual differential pulse code modulation coding2025 12,389,037Use of secondary transform in coded video2025 12,389,022Buffer resetting for intra block copy in video coding2025 12,388,989Prediction refinement for affine merge and affine motion vector prediction mode2025 12,382,016Size restriction for intra-block copy virtual buffer2025 12,382,085Decoder side motion derivation based on processing parameters2025 12,382,060Chroma quantization parameter in video coding2025 12,375,643Matrix derivation in intra coding mode2025 12,375,693Video decoder initialization information constraints2025 12,375,714Context coding for matrix-based intra prediction2025 12,375,668Adjusting quantization/scaling and inverse quantization/scaling when switching color spaces2025 12,375,719Selective use of adaptive in-loop color-space transform and other video coding tools2025 12,375,679Restricted upsampling process in matrix-based intra prediction2025 12,368,844Intra coded video using quantized residual differential pulse code modulation coding2025 12,368,841Methods for cross component dependency reduction2025 12,368,875Two-step cross-component prediction mode2025 12,363,303Minimum allowed quantization for transform skip blocks in video coding2025 12,363,337Coding and decoding of video coding modes2025 12,356,020Cross-component adaptive loop filtering in video coding2025 12,355,979Multi-models for intra prediction2025 12,355,983Restriction of applicability for intra block copy mode2025 12,348,769Representative motion information for temporal motion prediction in video encoding and decoding2025 12,348,779Using subpictures and tiles in video coding2025 12,348,782Transform skip residual coding2025 12,348,760Coding and decoding of video coding modes2025 12,348,723Combined intra and intra-block copy prediction for video coding2025 12,348,708Mode determination for palette mode coding2025 12,341,966Condition dependent coding of palette mode usage indication2025 12,335,531Intra block copy coding and decoding2025 12,335,532Using subpictures and tiles in video coding2025 12,335,480Independent coding of palette mode usage indication2025 12,323,583Setting intra-block copy virtual buffer based on virtual pipeline data unit2025 12,323,582Intra-picture prediction using non-adjacent reference lines of sample values2025 12,323,600Resource constrained video encoding2025 12,316,871Context determination for matrix-based intra prediction2025 12,316,878Reference picture information signaling in a video bitstream2025 12,316,829Dictionary based coding of video data2025 12,301,799Controlling deblocking filtering at different levels in coded video2025 12,301,839Scanning orders for non-transform coding2025 12,301,845Parameter derivation in cross component mode2025 12,301,793Sample identification for intra block copy in video coding2025 12,294,709Minimum allowed quantization for transform skip blocks in video coding2025 12,294,701Size restriction based for chroma intra mode2025 12,289,466Generalized bi directional prediction mode in video processing2025 12,289,467Adaptive switching of color spaces, color sampling rates and/or bit depths2025 12,284,371Use of offsets with adaptive colour transform coding tool2025 12,284,374Data storage in buffers for intra block copy in video coding2025 12,284,347Adaptive colour transform in image/video coding2025 12,284,354Transform coding based on matrix-based intra prediction2025 12,278,949Quantization properties of adaptive in-loop color-space transform for video coding2025 12,273,515Constraints on adaptation parameter set syntax elements2025 12,273,525Context adaptive coding of block vectors2025 12,262,045Features of intra block copy prediction mode for video and image coding and decoding2025 12,256,104Non-transform coding2025 12,256,107Use of header syntax elements and adaptation parameter set2025 12,256,089Coded-block-flag coding and derivation2025 12,244,823Encoder-side options for intra block copy prediction mode for video and image coding2025 12,244,826Video block partition based on quinary-tree2025 12,244,811Combined screen content coding mode2025 12,238,346Condition-dependent unsymmetrical quad-tree partitioning2025 12,238,324Flexible reference picture management for video encoding and decoding2025 12,238,314Prediction using extra-buffer samples for intra block copy in video coding2025 12,238,305Signaling and syntax for in-loop reshaping information2025 12,231,680Using palette predictor in video coding2025 12,231,698Filter parameter signaling in video picture headers2025 12,231,625Range constrains for block vector in intra-block copy mode2025 12,231,693Entropy coding for palette escape symbol2025 12,219,136Residual coding for transform skipped blocks2025 12,219,165Alignment of prediction weights in video coding2025 12,219,167Coding of block vectors for intra block copy-coded blocks2025 12,212,769Method for local illumination compensation2025 12,206,850Techniques for modifying quantization parameter in transform skip mode2025 12,200,242Construction method for a spatial motion candidate list2025 12,200,244Multi-HMVP for affine2025 12,192,459Interplay between subpictures and in-loop filtering2025 12,184,865Multi-parameters based intra prediction2024 12,170,766Constraints on adaptation parameter set syntax elements2024 12,170,789Motion compensation along different directions2024 12,166,988Residual coefficients coding2024 12,143,641Interplay between picture header and slice header of a video bitstream2024 12,136,188Image/video super resolution2024 12,137,257Signaling for video block partition mode2024 12,137,252Signaling for inter prediction in high level syntax2024 12,132,884Palette mode coding in prediction process2024 12,132,888Virtual prediction buffer for intra block copy in video coding2024 12,126,802Partitions on sub-block transform mode2024 12,126,805Coding of pictures containing slices and tiles2024 12,120,300Restriction on number of context coded bins2024 12,120,313Restriction of applicability for intra block copy mode2024 12,120,302Coded representation of history-based motion vector prediction tables2024 12,114,016Interplay between in-loop filtering and video slices2024 12,113,986Interaction between screen content coding tools and motion information2024 12,113,972Adaptive resolution change and scalable coding for screen contents2024 12,108,090Unsymmetrical quad-tree partitioning2024 12,101,503Encoding strategies for adaptive switching of color spaces, color sampling rates and/or bit depths2024 12,101,494Prediction using intra-buffer samples for intra block copy in video coding2024 12,096,026Position-dependent intra prediction sample filtering2024 12,096,021Signaling of in-loop reshaping information using parameter sets2024 12,096,024Features of base color index map mode for video and image coding and decoding2024 12,096,013Signaling for transform skip mode2024 12,088,834Selective use of virtual pipeline data units for intra block copy video coding2024 12,081,779Rules for intra-picture prediction modes when wavefront parallel processing is enabled2024 12,081,767Interaction between MV precisions and MV difference coding2024 12,075,030Subpicture dependent signaling in video bitstreams2024 12,075,094Signaling in transform skip mode2024 12,075,038Selective use of alternative interpolation filters in video processing2024 12,069,282Order-based updating for intra block copy in video coding2024 12,069,239Sub-block based motion candidate selection and signaling2024 12,069,309Intra block copy coding and decoding2024 12,069,278Video region partition based on color format2024 12,063,356Palette mode coding in prediction process2024 12,063,362Restrictions on adaptive-loop filtering parameter sets2024 12,063,348Weighted sample bi-prediction in video coding2024 12,058,310Methods of coding images/videos with alpha channels2024 12,052,420Intra prediction and residual coding2024 12,047,558Subpicture dependent signaling in video bitstreams2024 12,041,223Chroma intra mode derivation in screen content coding2024 12,034,942Conditions for applicability of cross-component coding2024 12,034,964Selective application of decoder side refining tools2024 12,034,975Conditional signaling of syntax elements in a picture header2024 12,028,537Adjustments to encoding and decoding when switching color spaces2024 12,015,795Signaling of slice types in video pictures headers2024 12,010,321Affine based merge with MVD2024 12,010,338Representative motion information for temporal motion prediction in video encoding and decoding2024 12,003,711Deblocking filter for video coding2024 12,003,715Deblocking filter for video coding2024 12,003,745Buffer updating for intra block copy in video coding2024 11,997,318Filter parameter signaling in video picture headers2024 11,997,264Chroma deblocking harmonization for video coding2024 11,997,303Bidirectional optical flow based video coding and decoding2024 11,991,382Motion vector management for decoder side motion vector refinement2024 11,985,329Quantization parameter offset for chroma deblocking filtering2024 11,985,323Quantized residual differential pulse code modulation representation of coded video2024 11,985,340History-based affine parameters inheritance2024 11,985,317Coefficient scaling for high precision image and video coding2024 11,985,308Implementation aspects in intra block copy in video coding2024 11,973,959Quantization parameter for chroma deblocking filtering2024 11,973,973Prediction refinement based on optical flow2024 11,968,368Cross-component prediction with multiple-parameter model2024 11,962,814Indication of tiles in a video picture2024 11,962,771Syntax constraints in parameter set signaling of subpictures2024 11,956,439Signaling of chroma residual scaling2024 11,956,465Difference calculation based on partial position2024 11,956,438Direction-based prediction for intra block copy in video coding2024 11,956,449Simplification of combined inter-intra prediction2024 11,956,432Interplay between subpictures and in-loop filtering2024 11,949,880Video region partition based on color format2024 11,943,440Adjusting quantization/scaling and inverse quantization/scaling when switching color spaces2024 11,943,481Entropy coding for palette escape symbol2024 11,943,439Adaptive colour transform in image/video coding2024 11,943,444Restricted upsampling process in matrix-based intra prediction2024 11,936,884Coded-block-flag coding and derivation2024 11,936,855Alternative interpolation filters in video coding2024 11,936,852Sample identification for intra block copy in video coding2024 11,930,216Recursive splitting of video coding blocks2024 11,930,190Scanning orders for non-transform coding2024 11,930,185Multi-parameters based intra prediction2024 11,930,165Size dependent inter coding2024 11,924,432Condition dependent coding of palette mode usage indication2024 11,924,421Blending method for inter prediction with geometry partition2024 11,924,472Syntax element for chroma residual scaling2024 11,917,197Extensions of intra coding modes in video coding2024 11,917,169Palette mode for local dual tree2024 11,917,211Signaling of slice and tile picture partitions2024 11,910,005Block vector prediction in video and image coding/decoding2024 11,902,550Pruning method for history-based affine parameters2024 11,902,507Parameter derivation for intra prediction2024 11,895,295Encoder-side decisions for sample adaptive offset filtering2024 11,882,287Direction-based prediction for intra block copy in video coding2024 11,876,932Size selective application of decoder side refining tools2024 11,876,993Signaling of combined intra-inter prediction2024 11,871,025Motion precision in sub-block based inter prediction2024 11,870,996Transform bypass coded residual blocks in digital video2024 11,871,039Transform skip residual coding2024 11,863,784Sub-table for history-based affine mode2024 11,863,715Joint use of adaptive colour transform and differential coding of video2024 11,863,771Updating of history based motion vector prediction tables2024 11,856,185Pruning method in different prediction mode2023 11,856,237Use of header syntax elements and adaptation parameter set2023 11,856,211Usage for history-based affine parameters2023 11,843,798Motion vector range based on motion vector precision2023 11,843,725Using combined inter intra prediction in video processing2023 11,838,523General constraints information for video coding2023 11,831,899Flexible reference picture management for video encoding and decoding2023 11,831,877Calculation in matrix-based intra prediction2023 11,831,901Generalized bi directional prediction mode in video processing2023 11,825,123Interplay between in-loop filtering and video tiles2023 11,825,030Intra block copy mode with dual tree partition2023 11,812,067Slice and tile partitioning in video coding2023 11,805,275Context determination for matrix-based intra prediction2023 11,805,280Reference picture information signaling in a video bitstream2023 11,805,268Two step cross-component prediction mode2023 11,805,274Early determination of hash-based motion searching2023 11,800,090Clipping in reference picture resampling2023 11,800,155Deblocking parameters for chroma component2023 11,792,435Signaling for inter prediction in high level syntax2023 11,785,260Cross-component adaptive loop filtering in video coding2023 11,778,176Intra block copy buffer and palette predictor update2023 11,778,175Calculation for multiple coding tools2023 11,778,233Selective use of adaptive in-loop color-space transform and other video coding tools2023 11,765,367Palette mode with intra block copy prediction2023 11,765,390Non-transform coding2023 11,758,196Downsampling filter type for chroma blending mask generation2023 11,758,143Motion vector handling in geometry partition mode2023 11,758,127Intra-picture prediction using non-adjacent reference lines of sample values2023 11,758,162Rules for intra-picture prediction modes when wavefront parallel processing is enabled2023 11,750,799Methods for cross component dependency reduction2023 11,750,806Adaptive color transform in video coding2023 11,743,454Deriving reference sample positions in video coding2023 11,743,453Pulse code modulation technique in video processing2023 11,743,504Prediction type signaling in video coding2023 11,743,506Deblocking signaling in video coding2023 11,736,722Palette predictor size adaptation in video coding2023 11,729,405Parameter derivation for intra prediction2023 11,716,478Adjustments to encoding and decoding when switching color spaces2023 11,711,547Use and signaling of refining video coding tools2023 11,711,516Intra prediction using polynomial model2023 11,706,414Residual coding for transform skipped blocks2023 11,706,409Signaling for reference picture resampling2023 11,706,443Construction of affine candidates in video processing2023 11,700,378High level syntax for inter prediction with geometric partitioning2023 11,695,946Reference picture resampling in video processing2023 11,689,735Alignment of prediction weights in video coding2023 11,683,521Representative motion information for temporal motion prediction in video encoding and decoding2023 11,683,522Adaptive switching of color spaces, color sampling rates and/or bit depths2023 11,683,500Precision transform coefficient scaling and quantization for image and video coding2023 11,683,476Size restriction for intra-block copy virtual buffer2023 11,683,503Mode determining for palette mode in prediction process2023 11,677,941Construction method for inter prediction with geometry partition2023 11,677,953Independent coding of palette mode usage indication2023 11,677,935Mode determination for palette mode coding2023 11,671,591Quantization properties of adaptive in-loop color-space transform for video coding2023 11,671,587Coordination method for sub-block based inter prediction2023 11,671,586Modified history based motion prediction2023 11,659,164Methods for cross component dependency reduction2023 11,659,185Matrix-based intra prediction using upsampling2023 11,659,202Position-dependent intra prediction sample filtering2023 11,659,180Simplified inter prediction with geometric partitioning2023 11,647,229Use of secondary transform in coded video2023 11,641,464Scaling window in video coding2023 11,641,478Usage of default and user-defined scaling matrices2023 11,638,004Setting intra-block copy virtual buffer based on virtual pipeline data unit2023 11,632,566Inter prediction with refinement in video processing2023 11,632,569Encoding strategies for adaptive switching of color spaces, color sampling rates and/or bit depths2023 11,632,541Using collocated blocks in sub-block temporal motion vector prediction mode2023 11,627,333Interactions between in-loop reshaping and palette mode2023 11,622,120Using chroma quantization parameter in video coding2023 11,616,973Coding of block vectors for intra block copy-coded blocks2023 11,616,978Simplification of hash-based motion searching2023 11,616,965Restriction on applicability of cross component mode2023 11,611,753Quantization process for palette mode2023 11,611,780Level-based signaling of video coding tools2023 11,606,570Syntax signaling and parsing based on colour component2023 11,601,652Coding mode determination based on color format2023 11,595,658Derivation of collocated motion vectors2023 11,595,641Alternative interpolation filters in video coding2023 11,595,671Signaling for transform skip mode2023 11,595,657Inter prediction using polynomial model2023 11,595,687Context-based intra prediction2023 11,582,451Coefficient scaling for high precision image and video coding2023 11,575,888Virtual prediction buffer for intra block copy in video coding2023 11,575,893Size restriction based for chroma intra mode2023

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2021–2026Patents assigned to BYTEDANCE INC (343)· patent assignee history

2021–2026Patents assigned to BEIJING BYTEDANCE NETWORK TECH CO LTD (303)· patent assignee history

2021–2026Patents assigned to MICROSOFT TECHNOLOGY LICENSING LLC (49)· patent assignee history

2021–2026Based in US· patent location history

2021–2026Based in CN· patent location history

2023–2025Patents assigned to LEMON INC (3)· patent assignee history

2024–2025Patents assigned to BEIJING BYTEDANCE NEWTORK TECH CO LTD (3)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
BYTEDANCE INC	343	2021–2026
BEIJING BYTEDANCE NETWORK TECH CO LTD	303	2021–2026
MICROSOFT TECHNOLOGY LICENSING LLC	49	2021–2026
BEIJING BYTEDANCE NEWTORK TECH CO LTD	3	2024–2025
LEMON INC	3	2023–2025

Locations

Location	Patents	Span
US	346	2021–2026
CN	49	2021–2026