Abstract: A fuel transaction tracking system such as used at gasoline pumps wherein a four wire data system is operated utilizing two wires and a multiplexing system to connect to a remote four wire station including computer.

Abstract: The present invention relates to a fuel transaction tracking system such as used at gasoline pumps wherein a four wire data system is operated utilizing two wires and a multiplexing system to connect to a remote four wire station including computer.

Abstract: The present invention relates to a system in fuel dispensing control such as gasoline pumps wherein a four wire data system is operated utilizing two wires and a multiplexing system.

Abstract: The present invention relates to a fuel dispenser control system used in combination with a host computer for controlling the fuel dispensing process, and with newer dispensers, for accepting payment by credit card or cash dispenser. The fuel control system includes a fuel controller application installed on the operating system of the computer, and includes a host application interface, a fuel dispenser control section, and a fuel dispenser brand specific section. The system includes an OLE-II server, residing in the host computer, for receiving and processing commands from the host application section. The host application interface interfaces the fuel controller application to the host computer, the fuel dispenser control section controls the dispensers, and the dispenser brand specific section formats the communication signals according to the type dispenser being controlled.

Abstract: The present invention relates to a fuel dispenser control system used in combination with a host computer for controlling the fuel dispensing process, and with newer dispensers, for accepting payment by credit card or cash dispenser. The fuel control system includes a fuel controller application installed on the operating system of the computer, and includes a host application interface, a fuel dispenser control section, and a fuel dispenser brand specific section. The system includes an OLE-II server, residing in the host computer, for receiving and processing commands from the host application section. The host application interface interfaces the fuel controller application to the host computer, the fuel dispenser control section controls the dispensers, and the dispenser brand specific section formats the communication signals according to the type dispenser being controlled.

Abstract: A processor, such as a microprocessor, responds to the detection of an input audio signal generated by glass breakage to cause an alarm to be indicated, such as at a remotely located alarm control panel. The system determines when the input power supply voltage supplied to the system falls below a selected low voltage level. The system is placed in a test mode of operation in response to a uniquely characterized, humanly generated input sound signal and then can be tested by any appropriate humanly generated input sound signal. The system continually monitors ambient background noise and determines when an absence thereof occurs so as to provide an indication of such absence to alert the user to the possibility that the system may have been purposely comprised. The system further uses a number of indicators arranged so that the meanings thereof are different depending on whether the system is in an alarm detection mode of operation or in a test mode of operation.

Abstract: A glass fracture detection system includes a circuit having a sensor for providing an output signal when a glass fracture occurs. The sensor is positioned within a housing so that, when the housing is mounted on the surface of the glass adjacent the frame in which the glass is encased, the sensor is automatically positioned in communication with the glass surface at a specified distance from the frame, which distance is selected so as to reduce damping of the output signal due to the presence of the frame and to reduce signals reflected from the frame to the sensor.