Assignee
NORTH ELECTRIC CO
18 granted patents·742 citations·filing 1974–1976
Top patents by PatentIndex Score
18 records- 0197US4093985AMemory sparing arrangementNORTH ELECTRIC CO·Filed 1976·Granted Jun 6, 1978·88 cites·4 claims
- 0288US4071040AWater-proof air-pressure equalizing valveNORTH ELECTRIC CO·Filed 1976·Granted Jan 31, 1978·115 cites·2 claims
- 0388US3974343ASmall modular communications switching system with distributed programmable controlNORTH ELECTRIC CO·Filed 1975·Granted Aug 10, 1976·101 cites·16 claims
- 0486US4064369AMethod and apparatus for path testing in a time division multiplex switching networkNORTH ELECTRIC CO·Filed 1975·Granted Dec 20, 1977·33 cites·23 claims
- 0586US4016368AFraming circuit for digital receiverNORTH ELECTRIC CO·Filed 1975·Granted Apr 5, 1977·86 cites·16 claims
- 0686US3986052APower switching control circuit with enhanced turn-off driveNORTH ELECTRIC CO·Filed 1975·Granted Oct 12, 1976·27 cites·7 claims
- 0786US3961138AAsynchronous bit-serial data receiverNORTH ELECTRIC CO·Filed 1974·Granted Jun 1, 1976·36 cites·18 claims
- 0884US3949299ASignal coding for telephone communication systemNORTH ELECTRIC CO·Filed 1974·Granted Apr 6, 1976·33 cites·29 claims
- 0980US3983418ADrive circuit for power switching deviceNORTH ELECTRIC CO·Filed 1975·Granted Sep 28, 1976·19 cites·4 claims
- 1078US4041252ATransformerless two-wire/four-wire hybrid with DC sourcing capabilityNORTH ELECTRIC CO·Filed 1976·Granted Aug 9, 1977·50 cites·6 claims
- 1177US4002963AConverter circuit and method having fast responding current balance and limitingNORTH ELECTRIC CO·Filed 1975·Granted Jan 11, 1977·27 cites·7 claims
- 1275US4087754ADigital-to-analog converter for a communication systemNORTH ELECTRIC CO·Filed 1976·Granted May 2, 1978·20 cites·3 claims
- 1374US3963872ANon-symmetric folded four-stage switching networkNORTH ELECTRIC CO·Filed 1974·Granted Jun 15, 1976·28 cites·19 claims
- 1474US3937897ASignal coding for telephone communication systemNORTH ELECTRIC CO·Filed 1974·Granted Feb 10, 1976·20 cites·29 claims
- 1564US4011434AStand-alone cumulative elapsed-time calculating systemNORTH ELECTRIC CO·Filed 1975·Granted Mar 8, 1977·26 cites·18 claims
- 1663US3988662AVariable flux-reset ferroresonant voltage regulatorNORTH ELECTRIC CO·Filed 1974·Granted Oct 26, 1976·14 cites·17 claims
- 1757US3963908AEncoding scheme for failure detection in random access memoriesNORTH ELECTRIC CO·Filed 1975·Granted Jun 15, 1976·18 cites·14 claims
- 1815US4058685AInteroffice loop supervision arrangementNORTH ELECTRIC CO·Filed 1976·Granted Nov 15, 1977·1 cites·6 claims
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