Assignee
VXI CORP
US15 patents
Top patents by PatentIndex Score
US6453281B1Sep 17, 2002
Portable audio database device with icon-based graphical user-interface
VXI CORP489 citations98
US6731751B1May 4, 2004
Apparatus for cordless computer telephony
VXI CORP42 citations92
US5978491ANov 2, 1999
Circuitry for improving performance of electret microphone
VXI CORP30 citations92
US5544243AAug 6, 1996
Telephone headset interface circuit
VXI CORP45 citations92
US9729958B2Aug 8, 2017
Headset system with user-configurable function button
VXI CORP22 citations91
US9398361B1Jul 19, 2016
Headset system with user-configurable function button
VXI CORP32 citations91
US6580797B1Jun 17, 2003
Amplifier circuit for electret microphone with enhanced performance
VXI CORP26 citations91
US6504937B1Jan 7, 2003
Amplifier circuit for electret microphone with enhanced performance
VXI CORP31 citations91
US6137879AOct 24, 2000
Computer telephony headset amplifier
VXI CORP30 citations90
US6681020B1Jan 20, 2004
Microphone circuit with mute and keep alive function
VXI CORP26 citations83
US6266424B1Jul 24, 2001
Electret microphone circuit with low battery disable
VXI CORP15 citations82
US5623544AApr 22, 1997
Telephone headset interface circuit
VXI CORP10 citations73
US6128384AOct 3, 2000
Self configuring telephone headset amplifier
VXI CORP12 citations72
US9413790B2Aug 9, 2016
Computer telephony headset with presence indicator
VXI CORP3 citations67
US7187768B1Mar 6, 2007
Apparatus for cord-free hands-free telephony
VXI CORP4 citations56