Inventor · disambiguated record
Ronald J. Canniff
Also filed as: CANNIFF RONALD J · CANNIFF RONALD JAY
14 granted patents·253 citations·filing 1976–2005
93Inventor score
Files withBELL TELEPHONE LABOR INC6AT & T BELL LAB4LUCENT TECHNOLOGIES INC2ALCATEL LUCENT USA INC1AMERICAN TELEPHONE & TELEGRAPH1
Top patents by PatentIndex Score
14 records- 0176US4380810ALoopback testBELL TELEPHONE LABOR INC·Filed 1980·Granted Apr 19, 1983·24 cites·12 claims
- 0276US4048448AMultiparty telephone ringingBELL TELEPHONE LABOR INC·Filed 1976·Granted Sep 13, 1977·14 cites·13 claims
- 0373US5251208ADigital signal processor synchronous networkAT & T BELL LAB·Filed 1991·Granted Oct 5, 1993·42 cites·28 claims
- 0470US5619564ATone detector with improved performance in the presence of speechLUCENT TECHNOLOGIES INC·Filed 1995·Granted Apr 8, 1997·45 cites·23 claims
- 0565US7680655B2Method and apparatus for measuring the quality of speech transmissions that use speech compressionALCATEL LUCENT USA INC·Filed 2005·Granted Mar 16, 2010·6 cites·19 claims
- 0663US4460806ADual tone multifrequency and dial pulse receiverAT & T BELL LAB·Filed 1982·Granted Jul 17, 1984·15 cites·17 claims
- 0760US4403320ALine status detection in a digital concentrator systemBELL TELEPHONE LABOR INC·Filed 1980·Granted Sep 6, 1983·11 cites·10 claims
- 0858US5331632AExpandable time slot interchangerAT & T BELL LAB·Filed 1992·Granted Jul 19, 1994·32 cites·17 claims
- 0951US5953330ACommunication switchLUCENT TECHNOLOGIES INC·Filed 1997·Granted Sep 14, 1999·29 cites·9 claims
- 1048US4394756AGeneration of busy signals in a digital concentratorBELL TELEPHONE LABOR INC·Filed 1980·Granted Jul 19, 1983·7 cites·6 claims
- 1141US4357701ADigital concentrator terminal synchronizationBELL TELEPHONE LABOR INC·Filed 1980·Granted Nov 2, 1982·6 cites·9 claims
- 1239US4644568ATiming signal distribution arrangementAT & T BELL LAB·Filed 1985·Granted Feb 17, 1987·9 cites·10 claims
- 1339US4398284AConcentrator in a subscriber loop digital carrier systemBELL TELEPHONE LABOR INC·Filed 1980·Granted Aug 9, 1983·5 cites·12 claims
- 1437US4761751AMethod and apparatus for generating digital signals representing periodic samples of a sine waveAMERICAN TELEPHONE & TELEGRAPH·Filed 1986·Granted Aug 2, 1988·8 cites·34 claims
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