Pulse or digital communications – Repeaters – Testing
Patent
1980-04-23
1982-10-19
Safourek, Benedict V.
Pulse or digital communications
Repeaters
Testing
375 89, 179 84VF, 364724, H04J 506
Patent
active
043554059
ABSTRACT:
A digital MFC receiver using single band and multiband filters. The single band filters are tuned to respective ones of the signal frequencies. The multiband filters are used as guard filters producing interleaved guard bands between the signalling frequencies. A processor is used to test and evaluate received signals, the processor being programmable to evaluate signals to different specifications.
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patent: 3863030 (1975-01-01), Mills
patent: 3909549 (1975-09-01), Tarridec
IEEE Transaction on Audio, vol. AU-16, No. 3, Sep. 1968, L. B. Jackson, An Approach to the Implementation of Digital Filters, pp. 413-421.
IEEE Transaction on Acoustics, vol. ASSP-23, No. 3, Jun. 1975, F. G. Braun, Non-Recursive Filters for Detecting MF Signals, pp. 250-256.
Electrical Communication, vol. 54, No. 41979, (London), G. Thysseus, Digital MF Receivers and Senders.
IEEE Transaction on Communication, vol. COM-21, No. 12, Dec. 1973, I. Koval, Digital MF Filter Using Discrete Fourier Transform, pp. 1331-1335.
The Bell System Technical Journal, vol. 55, No. 4, Apr. 1976, Giopinath and Kurshan, A Touch Tone Receiver-Generator with Digital Channel Filter.
Electrical Communication, vol. 54, No. 4, 1979, Thysseus and Verbist, Digital Multifrequency Receiver and Senders.
Hoefkens Daniel S. G.
O'Reilly Dermod J. K.
Ruys Willi A. H.
Thyssens Guido M. J. B.
Verbist Leopold P.
Chaban Marvin M.
Chin Stephen
International Standard Electric Corporation
Raden James B.
Safourek Benedict V.
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