Invalidity dossier
US 10003820B2
Image encoding/decoding method and apparatus for same
Current assignee: Electronics and Telecommunications Research Institute ETRI
Added 10/10/2026, 12:01:11 AM
Active provider: DeepSeek · deepseek-v4-flash
Patent summary
Title, assignee, inventors, filing/issue dates, abstract, and a plain-language overview of the claims.
Patent Overview — US10003820B2
Title: Image encoding/decoding method and apparatus for same
Patent number: US10003820B2
Application number: US15/070,155
Assignee (current and original): Electronics and Telecommunications Research Institute (ETRI)
Inventors: Jin Ho Lee; Hui Yong KIM; Sung Chang Lim; Jin Soo Choi; Jin Woong Kim
Priority date: 2011-06-20 (stated as an assumption, not a legal conclusion)
Filing date: 2016-03-15
Publication date (grant): 2018-06-19
Anticipated expiration: 2032-06-20
Legal status: Active (as listed; the source states this is an assumption and not a legal conclusion)
Other version: US20160198191A1
Source: https://patents.google.com/patent/[US10003820](/patent/US10003820)/en
Purpose and plain-language scope (inferred only from the supplied text):
The patent concerns encoding and decoding of images/video. Based on the "prior art keywords" listed (prediction, pixel, block, mode, filtering) and the assigned classifications, the disclosed subject matter relates to predictive coding of digital video — spatially predicting a block's pixels from neighboring pixels, selecting among multiple spatial prediction modes, and applying filtering. Classification entries include H04N19/50 and H04N19/593 (predictive coding using spatial prediction), H04N19/11 (selection among multiple spatial predictive coding modes), H04N19/105 (selection of a reference unit for prediction), H04N19/117 (filters for pre-/post-processing), H04N19/122 (transform size selection), and H04N19/159 (prediction type). The excerpt does not include the claims, abstract, description, or drawings, so the precise claimed scope cannot be described from the supplied text.
What the excerpt does not establish:
- The actual claims, abstract, or written description (omitted).
- The specific technical steps, embodiments, or formulae.
- The content of the cited/related prior art (none listed in the excerpt).
- Any litigation, ownership transfer, validity, or enforceability details; the excerpt only notes that a "first worldwide family litigation" entry exists via a third-party database link.
Per instructions, no litigation, ownership, validity, or prior-art research was performed.
Generated 10/10/2026, 12:01:33 AM
Cases on file (0)
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Litigation summary
Past and pending lawsuits — plaintiffs, defendants, jurisdictions, outcomes, and notable rulings.
Proceedings on file (0)
All PTAB activity →AIA trial proceedings (IPR / PGR / CBM) filed at the USPTO Patent Trial and Appeal Board against this patent. Sourced from the USPTO Open Data Portal and refreshed every six hours; each proceeding number deep-links to the PTAB E2E docket.
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.