Resources Contact Us Home
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
Reduced sorbent utilization for circulating dry scrubbers
Clothing fastener accessory
Encoder that optically detects positional information of a moving body from different optical paths lengths
Helmet mandible
Circuit device for preventing radiation emission in portable terminal with two cameras
Horizontal cable manager
  Randomly Featured Patents
Adjustable computer chair
High-repetition rate passively mode-locked solid-state laser
Media print system
Method and apparatus for determining the acceptability of a weld formed by applying repetitive pulses of energy to the weld site
Distribution of security policies for small to medium-sized organizations
Solid planar liquid crystal display with matching leads
Magnetic head shifting means for flexible disk memory system
Methods and apparatus for personal routing in computer-simulated telephony
CMOS FET device with abnormal current flow prevention
Method and apparatus for reading or writing on tape using a servo positioned multiple channel head