Assignee

OKI ELECTRIC

JP·2 granted patents·14 citations·filing 1985–1997

Technology mixH03M1 H04L1 H04N1 H04Q1

Top patents by PatentIndex Score

2 records

0146US4672612AError correction system in a teletext systemOKI ELECTRIC·Filed 1985·Granted Jun 9, 1987·12 cites·5 claims
0213US6005941AMethod and apparatus for providing optional service functions in a private branch exchangeOKI ELECTRIC·Filed 1997·Granted Dec 21, 1999·2 cites·18 claims

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