Seiscor Technologies

Raytheon Company

Paul S Dara

An apparatus for fault detection and coupled between a power supply line and a circuit to be powered. When a fault develops in the circuit that causes voltage in the power supply lines to decrease, the power being provided is interrupted from the circuit. Once the fault is removed, power is automatically returned to the circuit.

Apparatus for fault detection and isolation

A phase-locked loop circuit for monitoring electrical signals adapted for use in telephone communication systems. Clock signals synthesized by a first phase-locked loop circuit are monitored by a second phase-locked loop circuit. The second phase-locked loop circuit additionally provides clock signal synthesis redudancy and and monitors the functional status of the first, signal synthesizing phase-locked loop circuit.

Telephone communication system having an enhanced timing circuit

A method and apparatus for reporting faults on a control line running through a plurality of processors to a control processor. Each processor having a failure provides a unique address onto the control line. The addresses are then sequentially shifted through each of the processors having a failure to the control processor.

Growing community of inventors

Broken Arrow, OK, United States of America

Paul S Dara