Inventor
CALLAWAY JR EDGAR HERBERT
US23 patents
⚠️ This page may combine multiple inventors who share the name “CALLAWAY JR EDGAR HERBERT”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MOTOROLA INC
21 patentsUS6327300B1Dec 4, 2001
Method and apparatus for dynamic spectrum allocation
MOTOROLA INC146 citations99
US6862433B2Mar 1, 2005
Antenna system for a wireless information device
MOTOROLA INC70 citations98
US6275500B1Aug 14, 2001
Method and apparatus for dynamic control of talk groups in a wireless network
MOTOROLA INC195 citations97
US6711380B1Mar 23, 2004
Method and apparatus for reducing interference effects caused by microwave sources
MOTOROLA INC60 citations96
US6215360B1Apr 10, 2001
Semiconductor chip for RF transceiver and power output circuit therefor
MOTOROLA INC68 citations96
US7277457B2Oct 2, 2007
Sync bursts for frequency offset compensation
MOTOROLA INC27 citations92
US5838741ANov 17, 1998
Communication device and method for reducing effects of noise introduction by synchronizing data transfer to a received signal
MOTOROLA INC56 citations92
US6160490ADec 12, 2000
Apparatus for improving the battery life of a selective call receiver
MOTOROLA INC61 citations91
US5678223AOct 14, 1997
Method and apparatus for an automatic frequency control receiver
MOTOROLA INC19 citations91
US6571083B1May 27, 2003
Method and apparatus for automatic simulcast correction for a correlation detector
MOTOROLA INC41 citations90
US6169889B1Jan 2, 2001
Method and electronic device using random pulse characteristics in digital signals
MOTOROLA INC31 citations90
US5734974AMar 31, 1998
Selective call receivers with stepwise variable gain control
MOTOROLA INC33 citations88
US7133398B2Nov 7, 2006
System and method for asynchronous communications employing direct and indirect access protocols
MOTOROLA INC37 citations86
US7016661B2Mar 21, 2006
Multi-mode receiver for frequency error mitigation
MOTOROLA INC13 citations84
US7492773B2Feb 17, 2009
Media access control and distributed data processing using mediation devices in an asynchronous network
MOTOROLA INC9 citations82
US6055436AApr 25, 2000
Method and apparatus for detecting simulcast channel conditions
MOTOROLA INC12 citations74
US5940757AAug 17, 1999
Communication system and method for selecting alternative frequencies
MOTOROLA INC13 citations74
US6259902B1Jul 10, 2001
Dual channel superheterodyne receiver
MOTOROLA INC10 citations73
US6184751B1Feb 6, 2001
Amplifier circuit
MOTOROLA INC8 citations73
US6768398B2Jul 27, 2004
Method and apparatus for creating a radio frequency filter
MOTOROLA INC3 citations54
US7440462B2Oct 21, 2008
Quality of service (QOS) control mechanisms using mediation devices in an asynchronous network
MOTOROLA INC0 citations40