Assignee
HID CORP
US11 patents
Top patents by PatentIndex Score
US6476708B1Nov 5, 2002
Detection of an RFID device by an RF reader unit operating in a reduced power state
HID CORP367 citations99
US5764138AJun 9, 1998
RF identification system for providing static data and one bit of variable data representative of an external stimulus
HID CORP143 citations97
US5864580AJan 26, 1999
Miniature wireless modem
HID CORP90 citations95
US6650227B1Nov 18, 2003
Reader for a radio frequency identification system having automatic tuning capability
HID CORP337 citations94
US6566997B1May 20, 2003
Interference control method for RFID systems
HID CORP300 citations94
US6191687B1Feb 20, 2001
Wiegand effect energy generator
HID CORP89 citations92
US5832090ANov 3, 1998
Radio frequency transponder stored value system employing a secure encryption protocol
HID CORP399 citations92
US7124942B2Oct 24, 2006
Low voltage signal stripping circuit for an RFID reader
HID CORP17 citations89
US5898241AApr 27, 1999
Read head for Wiegand token
HID CORP21 citations89
US6229300B1May 8, 2001
Wiegand tilt sensor
HID CORP28 citations88
US5908103AJun 1, 1999
Token with Wiegand wire
HID CORP21 citations88