Evidence for what a patent covers, and what came before it
SEP Insights reads the standards themselves, the contribution record behind them and the declarations made against them, so an essentiality or validity position rests on quoted text with a date, not on an assertion.
Map a claim onto the clauses of the standard it is declared to, with the quoted clause beside each element. Every 3GPP release and the codec specs are ingested clause by clause.
Search the contribution record, the earlier releases, the patent literature worldwide and the academic literature — all gated to the priority date, and all reporting whether they actually searched.
Trace a clause back to the contribution that introduced it, who filed it and when. Where the trail breaks, the gap is named rather than papered over.
SEP Insights presents the record for your own assessment. It does not render a legal determination.