| Automatically controlled varactor tuned matching networks for a crystal filter RS Fraser, TTC Buu, CR Ruelke US Patent 5,216,392, 1993 | 84 | 1993 |
| DC offset correction loop for radio receiver CR Ruelke US Patent 6,459,889, 2002 | 66 | 2002 |
| Receiver with automatic gain control that operates with multiple protocols and method thereof CR Ruelke, M Ben-Ayun, DJ Graham, M Rozental US Patent 7,227,916, 2007 | 61 | 2007 |
| Radio receiver providing reduced intermodulation distortion GC Anderson, CR Ruelke, RS Fraser US Patent 5,564,094, 1996 | 43 | 1996 |
| Multi-layered bi-directional coupler utilizing a segmented coupling structure CR Ruelke US Patent 5,767,753, 1998 | 41 | 1998 |
| Apparatus for receiving multiple independent RF signals simultaneously and method thereof CR Ruelke, AL Galan, YN Rao US Patent 8,320,858, 2012 | 34 | 2012 |
| Dynamically matched mixer system with improved in-phase and quadrature (I/Q) balance and second order intercept point (IP2) performance CR Ruelke, NG Cafaro, RE Stengel US Patent 7,251,468, 2007 | 27 | 2007 |
| Method and apparatus for minimizing baseband offset error in a receiver CR Ruelke, RS Young US Patent 7,203,476, 2007 | 27 | 2007 |
| Carrier detect system, apparatus and method thereof CR Ruelke, YN Rao, DJ Stogner, RS Young US Patent 8,259,858, 2012 | 25 | 2012 |
| Multi-layered bi-directional coupler CR Ruelke US Patent 5,576,669, 1996 | 23 | 1996 |
| Off-channel signal detector with programmable hysteresis N Godambe, JW Simmons, J Goatley, C Ruelke US Patent 7,373,125, 2008 | 22 | 2008 |
| Apparatus and method for a dual watch receiver AL Galan, YS Park, CH Carter, CR Ruelke, D Stogner US Patent 8,971,456, 2015 | 21 | 2015 |
| Method and system for direct mode communication within a talkgroup CR Ruelke, RJ Corke, B LoGalbo US Patent 9,578,469, 2017 | 20 | 2017 |
| Method and apparatus for determining location of a communication device CB Swope, AJ Gonzalez, CR Ruelke US Patent 8,131,215, 2012 | 19 | 2012 |
| Method and apparatus for location determination CB Swope, R Rivera, JA Underwood, JR Melton, CR Ruelke US Patent 7,202,815, 2007 | 19 | 2007 |
| Method and apparatus for imbalance-free FM demodulation in direct conversion radio receivers Y Rao, CR Ruelke, DJ Stogner, RS Young US Patent 8,442,474, 2013 | 18 | 2013 |
| Method for generating a location signal CR Ruelke, AJ Gonzalez, CB Swope US Patent 8,063,823, 2011 | 16 | 2011 |
| Method and device for generating a location signal AJ Gonzalez, CR Ruelke, CB Swope US Patent 8,169,369, 2012 | 13 | 2012 |
| Method for mitigating intermodulation interference using channel power estimation and attenuation in a two-way radio communications system CR Ruelke, A Chaudhri, DJ Stogner US Patent 7,263,363, 2007 | 13 | 2007 |
| Radio receiver having a multi-state variable threshold automatic gain control (AGC) for fast channel scanning acquisition and mehtod for using same CR Ruelke, WJ Rinderknecht US Patent 7,689,217, 2010 | 12 | 2010 |
