Patent ID: 6393360
Filing Date: 2002-05-21
Classification: G01C

Abstract:
LPS (Local Position System), apparatus for navigation based on receiving signals from signal sources which are installed on local objects, comprising:(a) address code emitter or carriers means for sending or carrying signals by means to be picked up by moving objects, said signals indicating corresponding road information which are digitized as multi-digit numbers under standard rules; and (b) databases for storing any road information and digitized electronic maps, said road information is straightforward converted to a multi-digit number which is defined under standard rules; and (c) a receiver system mounted on moving objects, said receiver system including: (1) a memory unit for storing the said databases of said digitized road information by means; and (2) a control panel for inputting desired destination and options to show desired type of information; and (3) a pick up device for receiving said signals from said signal emitter or carrier by means; and (4) a computer for decoding received said signals to extract said digitized road information from said signals, and for processing said digitized road information to search said database and determine current position, traffic situation and said road information of said moving objects and find the best route and direction to the desired destination; and (5) a display device and/or a loudspeaker for showing the user current location as a spot, regional map and the best route and next direction using arrows or different color of lines; and (6) a transmitter for emitting said received signal by various means into air for other peoples who want to know where the user is; said moving objects including a vehicle, boat, person and any movable objects; said receiver being made into an individual box or built into radio, CD player, and cellular phone by various means; said address code emitter or carrier including plurality of signal sources set on fixed object by means.