International Business Machines Corporation

Ralph D Lane

Ronald W Knepper

Evan Ezra Davidson

Peter J Ludlow

Richard A Manning

Aage A Hansen

Barry L Moore

Disclosed is a terminator for a transmission line including first and second diodes connected in a series path having a common node therebetween connected to the transmission line. A potential supply connected across the terminal ends of the series connected diodes reverse biases them into their high impedance state.

Low power transmission line terminator

Disclosed is a high voltage driver circuit for writing information into a read mostly memory array, the memory cells of the array being characterized by requiring much higher potential levels for writing information than for reading information.

High voltage integrated driver circuit

A Content-Addressable Memory Cell featuring a pair of current switches, one at each output of a flip-flop cell to provide for searching the cell at high speed and without disturbing the contents of the cell.

Content-Addressable Memory capable of a high speed search

An over current protect circuit for a common bus driver having a complementary pair FET output includes a pair of AND circuits responsive to the gate-source and drain-source voltages for charging separate time integrating capacitors. If a threshold charge is reached a latch is triggered, which in turn disables the driver via a NAND gate and Inverter, and discharges the active capacitor. The latch is reset by dropping the driver enable line. As an alternative, high driver current may be sensed by placing a resistor in series with each output FET and charging the associated capacitor in response to a high current through the resistor.

Growing community of inventors

Wappingers Falls, NY, United States of America

Ralph D Lane