Invalidity dossier
US 7099848
Audio delivery and rendering method and apparatus
Current assignee: Intel Corp
Added 9/23/2026, 10:11:08 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 — US 7,099,848 B1
Title: Audio delivery and rendering method and apparatus
Inventor: Timothy Robert Bratton
Application: US 09/505,486, filed 2000-02-16
Priority date: 1999-02-16
Granted/publication date: 2006-08-29
Original assignee: Listen.com Inc. (later recorded assignees shown as Tuneto.com, Listen.com Inc., RealNetworks Digital Music of California Inc., RealNetworks Inc., and Intel Corp; the listing notes assignees may be inaccurate and no ownership analysis is made here.)
Status shown: Expired – Fee Related; anticipated expiration 2020-02-16
Source: https://patents.google.com/patent/US7099848/en
Purpose
The patent addresses coding and reproduction of audio signals, noting that digital synthesizers and MIDI-based systems struggle to recreate the nuances of real instruments, human voices, live recordings, and background sounds. Its stated aim is to separate music or other information-bearing sound into two or more components, where no single component allows reproduction of sounds resembling the original, and to allow encryption or encoding of selected components and changes to their format parameters.
Plain-language scope (per the excerpt)
- One or more selected segments — "pre-processing components" (PPCs) — are removed from a digital signal stream of information-bearing sounds (ISA). The remainder is a reduced data file (ISDF).
- The ISDF, as a first sequence, and the PPCs, as a second sequence, are processed differently and sent over different communication channels.
- The ISDF may be encrypted with an encryption key EK; a data supplement DS for the PPC sequence may include PPC location, sizes, separation distances, ISDF component sizes, and at least part of EK.
- More than one PPC sequence may be formed, each with its own DS, communicated separately. The ISA may be disassembled into N+1 complementary sequences such that N or fewer sequences cannot reproduce the original — useful, for example, for distributing legally protected (e.g., copyrighted) content.
- Classifications include G06F21/10 (DRM) and G10L19/00 (audio coding).
What the excerpt does not establish
The excerpt provides only illustrative application language and no verbatim claim set. It does not establish claim scope, claim count, dependency, or claim terminology; does not substantiate the assignee list or legal status; and does not address validity, enforceability, prior art, prosecution history, or litigation.
Generated 10/1/2026, 9:33:43 PM
Cases on file (0)
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Litigation summary
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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.