Patent ID: 7106214

Claim:
Apparatus for finding an unoccupied parking space in a parking lot with an on-line computer system comprises 3 main sets of apparatus which are apparatus at the entrance of said parking lot, apparatus at each parking space, and apparatus at the exit of said parking lot, where said apparatus at the entrance of the parking lot and said apparatus at the exit of the parking lot each comprises a remote control, a bar code reader and a system computer where each has an operator working at site, and said apparatus at said each parking space comprises Receiver Unit with a switch and a wave energy receiver having a memory; Transmitter Unit with a switch, a relay and a wave energy transmitter to transmit an infrared beam; On-line signal transmitting device connected to said system computer at the entrance to notify whether said parking space is occupied or vacant; Barring mechanisms to allow only permitted vehicle to park in said parking space; and whereof said remote control unit of said apparatus at entrance and at exit transmits wave energy of an assigned frequency to said receiver of said apparatus at said parking space, where said remote control also has a number and a specific bar code to be pressed or transmitted as a code to said receiver.