Invalidity dossier
US 7885993
Communication apparatus, communication method, electronic apparatus, control method for controlling electronic apparatus, and storage medium
Current assignee: Sony Corp
Added 9/24/2026, 2:17:11 AM
Active provider: DeepSeek · deepseek-flash
Patent summary
Title, assignee, inventors, filing/issue dates, abstract, and a plain-language overview of the claims.
Patent Overview: US7885993B2
Title: Communication apparatus, communication method, electronic apparatus, control method for controlling electronic apparatus, and storage medium
Patent Number: US7885993B2
Assignee: Sony Corp (current and original assignee, per the supplied text)
Inventor(s): Tetsujiro Kondo; Akira Tange
Key Dates:
- Prior art date: 2001-01-23
- Application number: US11/964,595
- Filing date: 2007-12-26
- Publication date: 2011-02-08
- Adjusted expiration: 2023-09-30
- Legal status: Expired – Fee Related
Other Version: US20080215662A1
Purpose and Plain-Language Scope:
Based only on the supplied text, this patent relates to a communication apparatus, a communication method, an electronic apparatus, a control method for controlling an electronic apparatus, and a storage medium. The classification data suggests subject matter involving the interconnection or transfer of information/signals between memories and input/output devices or central processing units (G06F13/00); selective content distribution such as interactive television or video on demand (H04N21/00); learning user preferences for recommending movies (H04N21/251); processing multiple end-users' preferences to derive collaborative data (H04N21/252); search customisation based on user profiles and personalisation (G06F16/9535); and end-user preference data, e.g., favourite actors or genre (H04N21/4755).
The prior art keywords listed are: user, information, electronic apparatus, communication, recording. These suggest a system concerning user information and recording within a communication context, but the excerpt does not supply the claims or detailed description.
What the Excerpt Does Not Establish:
The excerpt does not provide the patent's actual claims, specification, or detailed description of the invention. It does not establish the precise technical implementation, the exact problem solved, or the specific inventive scope. It also does not establish any litigation outcome, ownership transfer details, validity, or prior-art analysis beyond the listed prior art date and keywords. The legal status is expressly noted as an assumption, not a legal conclusion.
Source: https://patents.google.com/patent/[US7885993](/patent/US7885993)/en
Generated 10/1/2026, 9:30:52 PM
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.