DW

David R. Welland

SL Silicon Laboratories: 105 patents #1 of 744Top 1%
CL Cirrus Logic: 20 patents #55 of 1,131Top 5%
DB Dbx: 8 patents #1 of 15Top 7%
CS Crystal Semiconductor: 4 patents #13 of 74Top 20%
AD Analog Devices: 2 patents #738 of 1,943Top 40%
SS St-Ericsson Sa: 2 patents #146 of 771Top 20%
BT Blackswan Technologies: 1 patents #9 of 14Top 65%
🗺 Texas: #197 of 125,132 inventorsTop 1%
Overall (All Time): #6,593 of 4,157,543Top 1%
146
Patents All Time

Issued Patents All Time

Showing 51–75 of 146 patents

Patent #TitleCo-InventorsDate
6922469 Separation of ring detection functions across isolation barrier for minimum power Jeffrey W. Scott, Navdeep S. Sooch, Jerrell P. Hein 2005-07-26
6917245 Absolute power detector Timothy J. Dupuis, Susanne A. Paul, Ali Niknejad 2005-07-12
6903617 Method and apparatus for synthesizing high-frequency signals for wireless communications Lysander Lim, John B. Pavelka, Edmund G. Healy 2005-06-07
6823066 Digital access arrangement circuitry and method having current ramping control of the hookswitch George Tyson Tuttle, Jeffrey W. Scott, Navdeep S. Sooch 2004-11-23
6760575 Method and apparatus for generating a variable capacitance for synthesizing high-frequency signals for wireless communications 2004-07-06
6756849 Absolute power detector Timothy J. Dupuis, Susanne A. Paul, Ali Niknejad 2004-06-29
6754341 External resistor and method to minimize power dissipation in DC holding circuitry for a communication system Jeffrey W. Scott, Navdeep S. Sooch 2004-06-22
6750906 Histogram-based automatic gain control method and system for video applications Nadi R. Itani, Caiyi Wang 2004-06-15
6741846 Method and apparatus for operating a PLL with a phase detector/sample hold circuit for synthesizing high-frequency signals for wireless communications Caiyi Wang 2004-05-25
6727754 RF power detector Timothy J. Dupuis, Ali Niknejad, Susanne A. Paul 2004-04-27
6683548 Analog isolation system with digital communication across a capacitive barrier Jeffrey W. Scott, Navdeep S. Sooch 2004-01-27
6654409 Direct digital access arrangement circuitry and method for connecting DSL circuitry to phone lines Jeffrey W. Scott, Navdeep S. Sooch 2003-11-25
6650364 Selectable threshold multimode gain control apparatus and method for setting mutually continuous analog, digital, and shutter gain levels Nadi R. Itani, Caiyi Wang 2003-11-18
6646822 Sampled amplitude read channel employing pipelined reads to reduce the gap between sectors Tyson Tuttle, Diwakar Vishakhadatta, Jerrel P. Hein, David E. Reed, Richard T. Behrens +4 more 2003-11-11
6611553 Isolation system with digital communication across a capacitive barrier Jeffrey W. Scott, Navdeep S. Sooch 2003-08-26
6587560 Low voltage circuits powered by the phone line Jeffrey W. Scott, Navdeep S. Sooch 2003-07-01
6574288 Method and apparatus for adjusting a digital control word to tune synthesized high-frequency signals for wireless communications Caiyi Wang 2003-06-03
6570513 Isolation system with digital communication across a capacitive barrier Jeffrey W. Scott, Navdeep S. Sooch 2003-05-27
6549764 Method and apparatus for selecting capacitance amounts to vary the output frequency of a controlled oscillator 2003-04-15
6549765 Phase locked loop circuitry for synthesizing high-frequency signals and associated method Caiyi Wang 2003-04-15
6522745 Digital access arrangement circuitry and method having a synthesized ringer impedance for connecting to phone lines George Tyson Tuttle, Jeffrey W. Scott, Navdeep S. Sooch 2003-02-18
6516024 Digital access arrangement circuitry and method for connecting to phone lines having a DC holding circuit with low distortion and current limiting Timothy J. Dupuis, George Tyson Tuttle, Jeffrey W. Scott, Navdeep S. Sooch 2003-02-04
6504864 Digital access arrangement circuitry and method for connecting to phone lines having a second order DC holding circuit Timothy J. Dupuis, George Tyson Tuttle, Jeffrey W. Scott, Navdeep S. Sooch 2003-01-07
6498825 Digital access arrangement circuitry and method for connecting to phone lines having a DC holding circuit with programmable current limiting Timothy J. Dupuis, George Tyson Tuttle, Jeffrey W. Scott, Navdeep S. Sooch 2002-12-24
6483390 Method and apparatus for synthesizing dual band high-frequency signals for wireless communications 2002-11-19