Personal identification system
Personal identification, access control and monitoring system
Personal messaging system and method
Personal programmable universal remote control
Personal radio paging receiver having sync signal controlled DC/
Personal reach system with improved paging capabilities
Personal recovery system
Personal security system
Personal shoe tracking system
Personal verification in a commercial transaction system
Personal verification system
Personalized accessibility identification...
Personalized security system
Personnel monitoring and locating system
Phase analog encoding system with compensation
Phase difference detection device and method for a position...
Phase difference detection device and method for a position...
Phase modulation type digital position detector
Phase shift type linear position detection device
Phase-stabilized, phase-coupled resonant circuit