Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Security apparatus and system for retail environments










Image Number 6 for United States Patent #5448638.

A gasoline service station includes gasoline dispensers and a PIN pad including keypads for receiving personal identification numbers and assembled into a network for securely communicating personal identification numbers from the PIN pads and dispensers to a host computer over unsecured data lines. The PIN pads and dispensers each include means for encryption and outputting of personal identification numbers. A security module includes means for decryption of data associated with each PIN pad and dispenser in a process for the respective PIN pads and dispensers and means for encryption of data associated with the host computer in a process which is different from its decryption of data associated with the PIN pads and dispensers. A site controller, which is not secure from unauthorized signal detection, has means for directing encrypted data received from the PIN pads and the dispensers to the security module and from the security module to the dispensers or the host computer as needed for properly directing encrypted data to a desired destination.








 
 
  Recently Added Patents
Media used in digital high speed inkjet web press printing
Faucet
Managing multiple web services on a single device
Analog-to-digital converter control using signal objects
Polarity switching member of dot inversion system
Apparatus, electronic component and method for generating reference voltage
Inter-carrier communications for multimedia-message delivery
  Randomly Featured Patents
Ringing signal generator
Digital signal processor and digital signal processing method enabling concurrent program download and execution
Combined electric shocking device for personal protection and guard therefor or the like
Method of tuning a bat and a tuned bat
Remotely re-programmable program memory for a microcontroller
Direction finder system using spread spectrum techniques
Three phase separation
Reverse boat oars
Process for marking the surface of a rolling mill
Micro-electro-mechanical systems phosphoric acid fuel cell