Patent Attorney: Bogacz; Frank J.Xiarhos; Peter
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Decoding method for T1 line format for CCITT 32K bit per second ADPCM clear channel transmission and 64 KBPS clear channel transmission
Inventor: Blondeau, Jr., et al. | Patent Number: 4747112
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Real time usage meter for a processor system
Inventor: Saluski | Patent Number: 4713791
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Arrangement for dynamic range checking or matching for digital values in a software system
Inventor: Crabbe, Jr. | Patent Number: 4692897
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Arrangement for on-line diagnostic testing of an off-line standby processor in a duplicated processor configuration
Inventor: Chapman, et al. | Patent Number: 4684885
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Real time usage indicator for a processor system
Inventor: Saluski | Patent Number: 4677580
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Duplex controller synchronization circuit for processors which utilizes an address input
Inventor: Conforti | Patent Number: 4674036
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Combined analog/digital CCIS data transmitter/receiver circuit
Inventor: Conforti | Patent Number: 4672603
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Diagnostic method for addressing arrangement verification
Inventor: Rahimzad | Patent Number: 4644540
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Diagnostic method for addressing arrangement verification
Inventor: Rahimzad | Patent Number: 4637019
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Flexible duplex dual port serial link controller
Inventor: Crabbe, Jr. | Patent Number: 4637012
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Fault tolerant dual port serial link controller
Inventor: Crabbe, Jr. | Patent Number: 4637011
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Anti-mutilation circuit for protecting dynamic memory
Inventor: Khera | Patent Number: 4630197
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DTMF receiver sense and control maintenance arrangement
Inventor: Jones, Jr., et al. | Patent Number: 4621354
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Method for controlling a multistage space switching network
Inventor: Draayer | Patent Number: 4613969
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DTMF receiver sense and control arrangement
Inventor: Jones, Jr., et al. | Patent Number: 4611325
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Arrangement for an electromechanical space switching network
Inventor: Draayer | Patent Number: 4611204
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Controller for a multistage space switching network
Inventor: Drayyer | Patent Number: 4610011
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Dynamic event selection network
Inventor: Crabbe, Jr. | Patent Number: 4603235
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Digital span conversion circuit
Inventor: Perry | Patent Number: 4598268
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Failure detection apparatus for use with digital pads
Inventor: Clements, et al. | Patent Number: 4596015
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Pseudo random framing detector circuit
Inventor: Beeman | Patent Number: 4590601
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Circuit for duplex synchronization of asynchronous signals
Inventor: Renner, et al. | Patent Number: 4580243
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Digital phase locking arrangement for synchronizing digital span data
Inventor: Perry | Patent Number: 4569063
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Duplex central processing unit synchronization circuit
Inventor: Renner, et al. | Patent Number: 4569017
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Arrangement for loop analysis testing for a digital switching system
Inventor: Daniels, et al. | Patent Number: 4552997
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Arrangement for facilitating external loop analysis testing for a digital switching system
Inventor: Daniels, et al. | Patent Number: 4551585
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Duplex digital span conversion circuit arrangement
Inventor: Perry | Patent Number: 4534027
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Parity checking arrangement for a remote switching unit network
Inventor: Renner | Patent Number: 4532624
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Validity checking arrangement for extended memory mapping of external devices
Inventor: Ladewski, et al. | Patent Number: 4531215
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Digital span reframing circuit
Inventor: Perry | Patent Number: 4531210
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Single fault tolerant CCIS data link arrangement
Inventor: Krikor | Patent Number: 4527157
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Digital span transmission circuit
Inventor: Perry | Patent Number: 4516245
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Duplex digital span transmission circuit arrangement
Inventor: Perry | Patent Number: 4514844
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T-S-T-S-T Digital switching network
Inventor: Renner | Patent Number: 4514842
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Dual rail network for a remote switching unit
Inventor: Renner | Patent Number: 4509169
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Digital remote switching unit
Inventor: Renner | Patent Number: 4509168
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Digital span frame detection circuit
Inventor: Perry | Patent Number: 4507780
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PCM Supervision data reformatting circuit
Inventor: Perry | Patent Number: 4504947
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Circuit for reliable data transfer between two central processing units
Inventor: Krikor, et al. | Patent Number: 4502114
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Common channel interoffice signaling system
Inventor: Krikor, et al. | Patent Number: 4499336
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Circuitry for recovery of data from certain bit positions of a T1 span
Inventor: Krikor | Patent Number: 4467469
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Data capture arrangement for a conference circuit
Inventor: Renner | Patent Number: 4466094
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Time shared conference arrangement
Inventor: Renner | Patent Number: 4466093
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Test data insertion arrangement for a conference circuit
Inventor: Renner | Patent Number: 4466092
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Apparatus for CCIS data transfer between a CPU and a plurality of data terminal equipment
Inventor: Krikor | Patent Number: 4466062
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Remote data link switching arrangement
Inventor: Krikor | Patent Number: 4464748
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Arrangement for subscriber line verification and ring testing
Inventor: Daniels, et al. | Patent Number: 4454388
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Arrangement for single line testing
Inventor: Daniels, et al. | Patent Number: 4453049