Invalidity dossier
US 11570469B2
Added 10/28/2026, 12:01:07 PM
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Patent summary
Title, assignee, inventors, filing/issue dates, abstract, and a plain-language overview of the claims.
Patent Overview: US11570469B2
Title: Moving picture coding method, moving picture coding apparatus, moving picture decoding method, and moving picture decoding apparatus
Patent number: US11570469B2 (application US17/215,065; pre-grant publication US20210218988A1)
Current/Original Assignee: Tagivan II LLC
Key dates (as listed; the source treats priority and legal status as assumptions, not legal conclusions):
- Priority date: 2011-11-02
- Filing date: 2021-03-29
- Publication of application: 2021-07-15
- Grant/publication of patent: 2023-01-31
- Adjusted expiration: 2033-03-10; status listed as Active
Inventors: Toshiyasu Sugio, Takahiro Nishi, Youji Shibahara, Kyoko Tanikawa, Hisao Sasai, Toru Matsunobu, Kengo Terada
Purpose and plain-language scope: The patent concerns predictive coding of digital video, particularly motion estimation and motion compensation. Based on the supplied classification entries and prior-art keywords ("motion vector," "coding unit," "moving picture"), the claimed subject matter appears directed to how motion vectors are processed and predictively encoded—e.g., initializing a vector search, handling multiple reference frames, and choosing or referencing prediction units within a coding block structure. The title indicates the disclosure covers both encoding and decoding methods and corresponding apparatuses. The excerpt does not include claim text, so the precise scope of the claims cannot be stated from this material.
Classification highlights (supplied): H04N19/51 and H04N19/513 (motion estimation/compensation; motion vector processing); H04N19/52 and H04N19/517 (predictive encoding of motion vectors); H04N19/56 (vector search initialization); H04N19/573 (multi-frame prediction); H04N19/176 (block-based coding); H04N19/423 (memory arrangements).
Source: https://patents.google.com/patent/[US11570469](/patent/US11570469)/en
What this excerpt does not establish: The actual claim language and limitations; the specification's technical details, embodiments, and figures; the identity or content of cited prior art; the relationship to related applications (e.g., US18/087,981/US11812055B2 is listed only as a later priority link); and any litigation, ownership, or validity matters, which were not researched per instruction.
Generated 10/28/2026, 12:01:24 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
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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.