Assignee
STROMBERG CARLSON CORP
78 granted patents·1,431 citations·filing 1973–1984
Top patents by PatentIndex Score
78 records- 0195US3963874ABusy-test arrangement for electronic private automatic branch exchangeSTROMBERG CARLSON CORP·Filed 1975·Granted Jun 15, 1976·71 cites·15 claims
- 0294US4220823ASelectively controlled digital padSTROMBERG CARLSON CORP·Filed 1978·Granted Sep 2, 1980·75 cites·14 claims
- 0394US3932016APrinted circuit card receptacleSTROMBERG CARLSON CORP·Filed 1974·Granted Jan 13, 1976·163 cites·3 claims
- 0492US4573151AInterface unit for telephone system having remote unitsSTROMBERG CARLSON CORP·Filed 1984·Granted Feb 25, 1986·106 cites·14 claims
- 0590US4385206AProgrammable port sense and control signal preprocessor for a central office switching systemSTROMBERG CARLSON CORP·Filed 1980·Granted May 24, 1983·104 cites·33 claims
- 0690US4083616APrinted wiring board levered inject-eject camSTROMBERG CARLSON CORP·Filed 1977·Granted Apr 11, 1978·81 cites·2 claims
- 0786USD268411STelephone handsetSTROMBERG CARLSON CORP·Filed 1980·Granted Mar 29, 1983·23 cites·1 claims
- 0886US3963868ALoudspeaking telephone hysteresis and ambient noise controlSTROMBERG CARLSON CORP·Filed 1974·Granted Jun 15, 1976·50 cites·7 claims
- 0985US4037170ADifference amplifier having extended common mode rangeSTROMBERG CARLSON CORP·Filed 1976·Granted Jul 19, 1977·21 cites·5 claims
- 1085US3963873ALocal transfer arrangement for electronic private automatic branch exchangeSTROMBERG CARLSON CORP·Filed 1975·Granted Jun 15, 1976·25 cites·6 claims
- 1182USD268181STelephone baseSTROMBERG CARLSON CORP·Filed 1980·Granted Mar 8, 1983·19 cites·1 claims
- 1280US4153817ADigital conference circuitSTROMBERG CARLSON CORP·Filed 1977·Granted May 8, 1979·18 cites·35 claims
- 1379US4044312AComparison circuit for removing possibly false signals from a digital bit streamSTROMBERG CARLSON CORP·Filed 1976·Granted Aug 23, 1977·17 cites·3 claims
- 1477US3936604ASynchronization of clocks in digital signalling networksSTROMBERG CARLSON CORP·Filed 1975·Granted Feb 3, 1976·23 cites·3 claims
- 1576US3975595AService code conversionSTROMBERG CARLSON CORP·Filed 1974·Granted Aug 17, 1976·24 cites·10 claims
- 1675US4276451AControl system for telephone switching systemSTROMBERG CARLSON CORP·Filed 1979·Granted Jun 30, 1981·23 cites·24 claims
- 1774US3970786ALoudspeaking telephone with improved receive sensitivitySTROMBERG CARLSON CORP·Filed 1974·Granted Jul 20, 1976·24 cites·5 claims
- 1874US3933187AControlled epoxy dispensing technique as related to transistor chip bondingSTROMBERG CARLSON CORP·Filed 1974·Granted Jan 20, 1976·26 cites·3 claims
- 1971US4366350AControl system for telephone switching systemSTROMBERG CARLSON CORP·Filed 1980·Granted Dec 28, 1982·22 cites·21 claims
- 2071US4042790AVoice guard circuit for a tone receiverSTROMBERG CARLSON CORP·Filed 1976·Granted Aug 16, 1977·12 cites·12 claims
- 2171US3999137ALow pass active filter apparatusSTROMBERG CARLSON CORP·Filed 1976·Granted Dec 21, 1976·17 cites·4 claims
- 2270US4430530ATelephony system with automatic test call generator for remote port groupsSTROMBERG CARLSON CORP·Filed 1982·Granted Feb 7, 1984·32 cites·32 claims
- 2370US4042789ATone combination detector and coincidence timer circuitSTROMBERG CARLSON CORP·Filed 1976·Granted Aug 16, 1977·11 cites·7 claims
- 2470US4011517ATimer apparatus for incrementing timing code at variable clock ratesSTROMBERG CARLSON CORP·Filed 1975·Granted Mar 8, 1977·17 cites·9 claims
- 2569US4096839AInternal combustion engine air-fuel ratio control system utilizing oxygen sensorSTROMBERG CARLSON CORP·Filed 1976·Granted Jun 27, 1978·18 cites·8 claims
- 2669US4042788ATone detectorSTROMBERG CARLSON CORP·Filed 1976·Granted Aug 16, 1977·10 cites·8 claims
- 2768US4475011AArrangement of interactive telephone switching processors providing selective functional capability by portSTROMBERG CARLSON CORP·Filed 1979·Granted Oct 2, 1984·12 cites·24 claims
- 2867US4447673ARing trip apparatus for a line circuit connected to DCO switchSTROMBERG CARLSON CORP·Filed 1981·Granted May 8, 1984·18 cites·18 claims
- 2967US4015745AReusable seal with thermal expansion compensationSTROMBERG CARLSON CORP·Filed 1975·Granted Apr 5, 1977·21 cites·4 claims
- 3066US3963875AUniversal answer arrangement for a PABXSTROMBERG CARLSON CORP·Filed 1974·Granted Jun 15, 1976·15 cites·8 claims
- 3165US4570260ADigital tone signal generator for telephony systemSTROMBERG CARLSON CORP·Filed 1983·Granted Feb 11, 1986·14 cites·31 claims
- 3265US4479034AArrangement of interactive processors for control of portsSTROMBERG CARLSON CORP·Filed 1983·Granted Oct 23, 1984·16 cites·25 claims
- 3364US4354060AElectronic telephoneSTROMBERG CARLSON CORP·Filed 1979·Granted Oct 12, 1982·14 cites·4 claims
- 3464US4021624AAutomatic call generatorSTROMBERG CARLSON CORP·Filed 1975·Granted May 3, 1977·13 cites·17 claims
- 3563US4322581AMultifunction telephone with message information and control information circuits for connecting stations and common equipment in a telephone networkSTROMBERG CARLSON CORP·Filed 1980·Granted Mar 30, 1982·19 cites·38 claims
- 3662US3963551AMethod for bonding semiconductor chipsSTROMBERG CARLSON CORP·Filed 1975·Granted Jun 15, 1976·17 cites·3 claims
- 3761US4002850ATrunk adapterSTROMBERG CARLSON CORP·Filed 1975·Granted Jan 11, 1977·7 cites·13 claims
- 3860US4334126AControl circuit for concurrently monitoring and controlling functions and frequency modulating status information in a digital data networkSTROMBERG CARLSON CORP·Filed 1980·Granted Jun 8, 1982·16 cites·11 claims
- 3958US4437096AConcentrator circuit incorporating solid state bilateral bridge arrangementSTROMBERG CARLSON CORP·Filed 1981·Granted Mar 13, 1984·11 cites·6 claims
- 4056US4042787AOutput processing and output coupling circuit for a digital tone receiverSTROMBERG CARLSON CORP·Filed 1976·Granted Aug 16, 1977·6 cites·11 claims
- 4155US4555595ASampled port data switching system employing interactive processorsSTROMBERG CARLSON CORP·Filed 1982·Granted Nov 26, 1985·10 cites·21 claims
- 4254US4034871AAdapter for mounting printed circuit cardsSTROMBERG CARLSON CORP·Filed 1973·Granted Jul 12, 1977·9 cites·10 claims
- 4352US4621358ARemote switch for telephony switching systemSTROMBERG CARLSON CORP·Filed 1984·Granted Nov 4, 1986·9 cites·12 claims
- 4452US4535282AVoltage regulation circuitSTROMBERG CARLSON CORP·Filed 1983·Granted Aug 13, 1985·12 cites·14 claims
- 4552US4451702AArrangement of interactive telephone switching processors for performing timing analyses of port eventsSTROMBERG CARLSON CORP·Filed 1981·Granted May 29, 1984·9 cites·19 claims
- 4652US4451703AAll electronic interface for telephony systemSTROMBERG CARLSON CORP·Filed 1981·Granted May 29, 1984·10 cites·13 claims
- 4751US4363936ATelephone network including common equipment with message information and control information circuits for connecting to stations having multifunction telephonesSTROMBERG CARLSON CORP·Filed 1980·Granted Dec 14, 1982·10 cites·13 claims
- 4851US4052970AAir-fuel ratio control system utilizing oxygen sensor and pressure differential sensorSTROMBERG CARLSON CORP·Filed 1976·Granted Oct 11, 1977·11 cites·4 claims
- 4950US4064372ASystems for and methods for PBX toll restrictionSTROMBERG CARLSON CORP·Filed 1976·Granted Dec 20, 1977·7 cites·6 claims
- 5049US4443663AFiltering of port data in a switching system employing interactive processorsSTROMBERG CARLSON CORP·Filed 1982·Granted Apr 17, 1984·9 cites·14 claims
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