Invalidity dossier
US 11122275
Video encoding apparatus, video decoding apparatus, and video decoding method for performing intra-prediction based on directionality of neighboring block
Current assignee: Ideahub Inc
Added 9/23/2026, 2:00:14 PM
Active provider: DeepSeek · deepseek-flash
Patent summary
Title, assignee, inventors, filing/issue dates, abstract, and a plain-language overview of the claims.
Patent Overview — US11122275B2
Title: "Video encoding apparatus, video decoding apparatus, and video decoding method for performing intra-prediction based on directionality of neighboring block"
Patent number: US11122275B2
Application number: US16/407,095 (filed 2019-05-08)
Prior art date / priority date (as listed): 2009-12-30
Grant/publication date: 2021-09-14
Inventor(s): Je Chang Jeong; Soon Jong Jin; Sang Jun Park; Hyuk Lee
Assignee: Ideahub Inc (current and original, as listed)
Legal status (as listed): Active; anticipated expiration 2030-12-23
Classifications (selected): H04N19/159 (prediction type), H04N19/11 (spatial predictive coding modes), H04N19/176 (block-based unit), H04N19/593 (spatial prediction), H04N19/134, H04N19/157, H04N19/61.
Purpose and plain-language scope (per supplied text):
The patent concerns video encoding and decoding in which intra-prediction is performed based on the directionality of a neighboring block. The listing's key terms ("intra prediction," "current block," "neighboring block") and classification entries indicate a block-based spatial (intra-frame) prediction scheme in which prediction modes are selected from a set of spatial predictive modes, using directionality information associated with a neighboring block. The text also references encoding/decoding apparatuses and a decoding method, and mentions supporting operations such as partition, transform, quantization, and compression.
Source: https://patents.google.com/patent/[US11122275](/patent/US11122275)/en
What the excerpt does not establish:
The supplied text does not include the claims, abstract, or detailed description, so it does not establish the specific steps, data structures, or claim limitations (e.g., how directionality is derived or applied). It does not establish an abstract, embodiments, or figures. It does not establish litigation, ownership transfers, validity, patentability, or prior-art effect. The dates shown are labeled assumptions and are not legal conclusions. Other family members are only partially indicated (US20190268604A1); continuity details are not established.
Generated 10/1/2026, 9:52:37 PM
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Litigation summary
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Proceedings on file (0)
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No PTAB proceedings on file. This patent has not been challenged via IPR, PGR, or CBM. The absence is itself a signal — well-asserted patents eventually attract IPRs. The LLM analysis below may surface filings the ODP feed hasn’t indexed yet.
PTAB challenges
AIA trial proceedings at the USPTO Patent Trial and Appeal Board — IPR, PGR, and CBM. Petitioners, judge panels, claim-level invalidation outcomes from Final Written Decisions, and Federal Circuit appeals. The single most important defensive datapoint after litigation history.
Assignment history
Inventors, original assignee, and the chain of ownership recorded with the USPTO — including the correspondent attorney who recorded each assignment, since shell-LLC chains often share one repeat-player attorney even when the entity names look unrelated. Surfaces NPE / patent-troll patterns: shell-entity transfers, known asserters in the chain, repeat correspondent fingerprints, pre-litigation assignments, and bankruptcy fire-sales.
Prior art
Earlier patents, publications, and products that may anticipate or render the claims unpatentable.
Obviousness
Combinations of prior art that suggest the claimed invention would have been obvious under 35 U.S.C. § 103.
Extensions
Patent term adjustments, term extensions, continuations, divisionals, family members, and expiration dates.
Derivative works
Defensive disclosure: derivative variations of each claim designed to render future incremental improvements obvious or non-novel.