Assignee
SIEMENS TRANSMISSION SYST
US·26 granted patents·482 citations·filing 1986–1989
Top patents by PatentIndex Score
26 records- 0186US4789996ACenter frequency high resolution digital phase-lock loop circuitSIEMENS TRANSMISSION SYST·Filed 1988·Granted Dec 6, 1988·94 cites·24 claims
- 0281US4847870AHigh resolution digital phase-lock loop circuitSIEMENS TRANSMISSION SYST·Filed 1987·Granted Jul 11, 1989·35 cites·19 claims
- 0374US4771463ADigital scrambling without error multiplicationSIEMENS TRANSMISSION SYST·Filed 1986·Granted Sep 13, 1988·47 cites·5 claims
- 0470US4899382ATelephone circuit using DC blocked transformer and negative impedance techniqueSIEMENS TRANSMISSION SYST·Filed 1988·Granted Feb 6, 1990·34 cites·16 claims
- 0568US5001748ARinging signal generatorSIEMENS TRANSMISSION SYST·Filed 1989·Granted Mar 19, 1991·28 cites·13 claims
- 0664US5046861AVertically oriented drawer slideSIEMENS TRANSMISSION SYST·Filed 1989·Granted Sep 10, 1991·28 cites·21 claims
- 0762US4908857AIsolated drive circuitSIEMENS TRANSMISSION SYST·Filed 1989·Granted Mar 13, 1990·21 cites·11 claims
- 0861US4928067ANon-intrusive fiber optic electromagnetic field probe apparatus and associated methodsSIEMENS TRANSMISSION SYST·Filed 1988·Granted May 22, 1990·20 cites·14 claims
- 0959US4912708AAutomatic microprocessor fault recovery systemSIEMENS TRANSMISSION SYST·Filed 1988·Granted Mar 27, 1990·29 cites·8 claims
- 1056US4939776ALogic signal circuit for a releasing relaySIEMENS TRANSMISSION SYST·Filed 1988·Granted Jul 3, 1990·20 cites·11 claims
- 1152US4924511ARing signal generator for generating ring signals of different frequencies and power levels in response to user selectionSIEMENS TRANSMISSION SYST·Filed 1988·Granted May 8, 1990·13 cites·5 claims
- 1250US4962527ASeries ringing signal generatorSIEMENS TRANSMISSION SYST·Filed 1989·Granted Oct 9, 1990·12 cites·3 claims
- 1348US4794604AOptimal error correction method for zero byte time slot interchange (ZBTSI) clear channel data transmissionSIEMENS TRANSMISSION SYST·Filed 1987·Granted Dec 27, 1988·10 cites·18 claims
- 1444US4965692AOverload detector and protection circuitSIEMENS TRANSMISSION SYST·Filed 1989·Granted Oct 23, 1990·8 cites·5 claims
- 1544US4959836ARegister robustness improvement circuit and methodSIEMENS TRANSMISSION SYST·Filed 1987·Granted Sep 25, 1990·18 cites·2 claims
- 1641US5121069ALow frequency sinewave generatorSIEMENS TRANSMISSION SYST·Filed 1988·Granted Jun 9, 1992·7 cites·9 claims
- 1741US4792949AService channel circuit for multiplexed telecommunications transmission systemsSIEMENS TRANSMISSION SYST·Filed 1987·Granted Dec 20, 1988·11 cites·7 claims
- 1836US4780896AHigh speed digital counter slip control circuitSIEMENS TRANSMISSION SYST·Filed 1987·Granted Oct 25, 1988·5 cites·8 claims
- 1934US4956797AFrequency multiplierSIEMENS TRANSMISSION SYST·Filed 1988·Granted Sep 11, 1990·11 cites·6 claims
- 2034US4785466AEncoder/decoder circuit for B8ZS and B6ZS applicationsSIEMENS TRANSMISSION SYST·Filed 1987·Granted Nov 15, 1988·6 cites·22 claims
- 2133US4914420ATelecommunication system including a remote alarm reporting unitSIEMENS TRANSMISSION SYST·Filed 1988·Granted Apr 3, 1990·8 cites·14 claims
- 2233US4853931AViolating All Zero Octet (VAZO) detector for a zero byte time slot interchange (ZBTSI) encoderSIEMENS TRANSMISSION SYST·Filed 1988·Granted Aug 1, 1989·4 cites·13 claims
- 2332US4887071ADigital activity loss detectorSIEMENS TRANSMISSION SYST·Filed 1988·Granted Dec 12, 1989·6 cites·11 claims
- 2432US4809324ASubscriber line interface circuit (SLIC) isolation from lighting-induced ground overshootsSIEMENS TRANSMISSION SYST·Filed 1987·Granted Feb 28, 1989·5 cites·12 claims
- 2530US4868831AZero byte time slot interchange (ZBTSI) encoderSIEMENS TRANSMISSION SYST·Filed 1988·Granted Sep 19, 1989·2 cites·12 claims
- 2626US4879730AJitter tolerant circuit for dual rail dataSIEMENS TRANSMISSION SYST·Filed 1988·Granted Nov 7, 1989·0 cites·10 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →