Inventor
MARCHOK DANIEL J
US52 patents
⚠️ This page may combine multiple inventors who share the name “MARCHOK DANIEL J”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TELLABS OPERATIONS INC
43 patentsUS6795424B1Sep 21, 2004
Method and apparatus for interference suppression in orthogonal frequency division multiplexed (OFDM) wireless communication systems
TELLABS OPERATIONS INC279 citations99
US6766292B1Jul 20, 2004
Relative noise ratio weighting techniques for adaptive noise cancellation
TELLABS OPERATIONS INC167 citations99
US6526140B1Feb 25, 2003
Consolidated voice activity detection and noise estimation
TELLABS OPERATIONS INC104 citations99
US6522746B1Feb 18, 2003
Synchronization of voice boundaries and their use by echo cancellers in a voice processing system
TELLABS OPERATIONS INC204 citations99
US6141317AOct 31, 2000
Apparatus and method for bandwidth management in a multi-point OFDM/DMT digital communications system
TELLABS OPERATIONS INC141 citations99
US6591234B1Jul 8, 2003
Method and apparatus for adaptively suppressing noise
TELLABS OPERATIONS INC87 citations98
US6523003B1Feb 18, 2003
Spectrally interdependent gain adjustment techniques
TELLABS OPERATIONS INC79 citations98
US6526105B1Feb 25, 2003
Time domain equalization for discrete multi-tone systems
TELLABS OPERATIONS INC101 citations97
US6771590B1Aug 3, 2004
Communication system clock synchronization techniques
TELLABS OPERATIONS INC37 citations96
US6529868B1Mar 4, 2003
Communication system noise cancellation power signal calculation techniques
TELLABS OPERATIONS INC35 citations96
US6285654B1Sep 4, 2001
Apparatus and method for symbol alignment in a multi-point OFDM or DMT digital communications system
TELLABS OPERATIONS INC63 citations96
US6122246ASep 19, 2000
Apparatus and method for clock synchronization in a multi-point OFDM/DMT digital communications system
TELLABS OPERATIONS INC59 citations96
US6118758ASep 12, 2000
Multi-point OFDM/DMT digital communications system including remote service unit with improved transmitter architecture
TELLABS OPERATIONS INC46 citations96
US5995483ANov 30, 1999
Apparatus and method for upstream clock synchronization in a multi-point OFDM/DMT digital communication system
TELLABS OPERATIONS INC60 citations96
US5790514AAug 4, 1998
Multi-point OFDM/DMT digital communications system including remote service unit with improved receiver architecture
TELLABS OPERATIONS INC59 citations96
US6628651B1Sep 30, 2003
Communication switching techniques with improved frame format
TELLABS OPERATIONS INC63 citations94
US6526139B1Feb 25, 2003
Consolidated noise injection in a voice processing system
TELLABS OPERATIONS INC70 citations94
US7236586B2Jun 26, 2007
Synchronization of echo cancellers in a voice processing system
TELLABS OPERATIONS INC12 citations93
US7003097B2Feb 21, 2006
Synchronization of echo cancellers in a voice processing system
TELLABS OPERATIONS INC23 citations93
US8050288B2Nov 1, 2011
Method and apparatus for interference suppression in orthogonal frequency division multiplexed (OFDM) wireless communication systems
TELLABS OPERATIONS INC21 citations92
US7616553B2Nov 10, 2009
Apparatus and method for clock synchronization in a multi-point OFDM/DMT digital communications system
TELLABS OPERATIONS INC15 citations92
US7613102B2Nov 3, 2009
Apparatus and method for clock synchronization in a multi-point OFDM/DMT digital communications system
TELLABS OPERATIONS INC11 citations92
US7424424B2Sep 9, 2008
Communication system noise cancellation power signal calculation techniques
TELLABS OPERATIONS INC13 citations92
US7362811B2Apr 22, 2008
Audio enhancement communication techniques
TELLABS OPERATIONS INC16 citations92
US7158572B2Jan 2, 2007
Audio enhancement communication techniques
TELLABS OPERATIONS INC24 citations92
US7096182B2Aug 22, 2006
Communication system noise cancellation power signal calculation techniques
TELLABS OPERATIONS INC23 citations92
US6950388B2Sep 27, 2005
Apparatus and method for symbol alignment in a multi-point OFDM/DMT digital communications system
TELLABS OPERATIONS INC20 citations92
US6912194B1Jun 28, 2005
Digital communication transmission techniques
TELLABS OPERATIONS INC25 citations92
US6804192B1Oct 12, 2004
OFDM/DMT digital communications system including partial sequence symbol processing
TELLABS OPERATIONS INC24 citations92
US6690680B1Feb 10, 2004
Communication system signal synchronization techniques
TELLABS OPERATIONS INC26 citations92
US6671667B1Dec 30, 2003
Speech presence measurement detection techniques
TELLABS OPERATIONS INC51 citations92
US6473394B1Oct 29, 2002
Apparatus and method for bandwidth management in a multi-point OFDM/DMT digital communications system
TELLABS OPERATIONS INC34 citations92
US6108349AAug 22, 2000
Method and apparatus for registering remote service units in a multipoint communication system
TELLABS OPERATIONS INC23 citations92
US7430242B2Sep 30, 2008
Spectrally constrained impulse shortening filter for a discrete multi-tone receiver
TELLABS OPERATIONS INC11 citations84
US7898935B2Mar 1, 2011
OFDM/DMT/digital communications system including partial sequence symbol processing
TELLABS OPERATIONS INC5 citations74
US7366294B2Apr 29, 2008
Communication system tonal component maintenance techniques
TELLABS OPERATIONS INC8 citations74
US6839666B2Jan 4, 2005
Spectrally interdependent gain adjustment techniques
TELLABS OPERATIONS INC10 citations74
US7440498B2Oct 21, 2008
Time domain equalization for discrete multi-tone systems
TELLABS OPERATIONS INC6 citations73
US6785328B2Aug 31, 2004
Time domain equalization for discrete multi-tone systems
TELLABS OPERATIONS INC12 citations73
US8031861B2Oct 4, 2011
Communication system tonal component maintenance techniques
TELLABS OPERATIONS INC2 citations63
US7957965B2Jun 7, 2011
Communication system noise cancellation power signal calculation techniques
TELLABS OPERATIONS INC1 citations63
US7916801B2Mar 29, 2011
Time-domain equalization for discrete multi-tone systems
TELLABS OPERATIONS INC2 citations57
US9014250B2Apr 21, 2015
Filter for impulse response shortening with additional spectral constraints for multicarrier transmission
TELLABS OPERATIONS INC0 citations51
MARCHOK DANIEL J
4 patentsUS8243583B2Aug 14, 2012
OFDM/DMT/digital communications system including partial sequence symbol processing
MARCHOK DANIEL J2 citations61
US8139471B2Mar 20, 2012
Apparatus and method for clock synchronization in a multi-point OFDM/DMT digital communications system
MARCHOK DANIEL J1 citations61
US8665859B2Mar 4, 2014
Apparatus and method for clock synchronization in a multi-point OFDM/DMT digital communications system
MARCHOK DANIEL J0 citations51
US8547823B2Oct 1, 2013
OFDM/DMT/ digital communications system including partial sequence symbol processing
MARCHOK DANIEL J0 citations51
(unassigned)
1 patentKAPOOR SAMIR
1 patentHARIKUMAR GOPAL
1 patentShowing the top 50 of 52 patents by PatentIndex Score.