Controlled doorway system

Abstract

The invention utilizes an existing cash register that, in processing the purchases, establishes a unique identifier (i.e. date stamp, barcode, QR code) on the receipt and updates a database of identifiers. This identifier is used at an exit door to trigger the opening of the door/portal allowing the purchaser to leave the building. Ideally the identifier is unique and includes a date of issuance to prevent fraudulent use.

What is claimed is: 
     
         1 . A doorway control system comprising:
 a) a register configured to process a purchase, said register providing a receipt with an identifier for a customer;   b) a doorway for exiting the store, said doorway having a preferred locked condition in a first state and an unlocked condition in a second state; and,   c) a scanner located proximate to the doorway, said scanner being responsive to the customer presentation of the identifier and upon sensing a valid identifier, said scanner causing the doorway to move to a second state for a selected period of time.   
     
     
         2 . The doorway control system according to  claim 1 , further including an override switch located proximate to the register, said override switch adapted to open the primary barrier of the doorway. 
     
     
         3 . The doorway control system according to  claim 2 , wherein the identifier is invisible to the human eye. 
     
     
         4 . The doorway control system according to  claim 3 , wherein the identifier is unique to the receipt. 
     
     
         5 . The doorway control system according to  claim 4 :
 a) further including a data base of identifiers; and,   b) wherein the scanner communicates with the data base to authenticate a submitted identifier.   
     
     
         6 . An exit control system comprising:
 a) a register configured to process a purchase, said register providing a receipt with an identifier;   b) an exit doorway for exiting the store, said doorway having a preferred locked condition in a first state and an unlocked condition in a second state;   c) a scanner located proximate to the doorway, said scanner being responsive to the identifier and upon sensing a valid identifier, said scanner causing the doorway to open for a period of time; and,   d) an override switch located proximate to the register, said override switch adapted to open the primary barrier of the exit doorway.   
     
     
         7 . The exit control system according to  claim 6 , wherein the identifier is invisible to the human eye. 
     
     
         8 . The exit control system according to  claim 7 , wherein the identifier is unique to the receipt and includes a date of issuance. 
     
     
         9 . The exit control system according to  claim 8 :
 a) further including a data base of identifiers; and,   b) wherein the scanner communicates with the data base to authenticate a submitted identifier.   
     
     
         10 . A security system comprising:
 a) a register configured to process a purchase, said register providing a receipt with a unique identifier;   b) a data base of identifiers established by the register at the time of providing the receipt; and,   c) an exit doorway for exiting the store, said doorway having a preferred locked condition;   d) a scanner located proximate to the doorway, said scanner being responsive to a proffered identifier, said scanner communicating the proffered identifier to the data base and receiving a validity indicia therefrom, based upon the validity indicia, said scanner causing the doorway to an unlocked state for a period of time.   
     
     
         11 . The security system according to  claim 10 , further including an override switch located proximate to the register, said override switch adapted to open the primary barrier of the exit doorway. 
     
     
         12 . The security system according to  claim 11 , wherein the identifier is invisible to the human eye.