Physics International Company

Robert William Blomenkamp

An electronic band pass filter adapted for passing an oscillating wave pulse of a predetermined band width frequency is provided with a circuit for short circuiting the energy contained in the ring-down at the end of the pulse to ground with additional circuitry for cutting off ring up at the beginning of the pulse and further narrowing the band width frequency.

Band pass filter for impulse operation

A digital or analog signal containing information is discriminated into identifiable bit bundles of information which are modulated into pulses of an oscillating current whose pulse length corresponds to a particular bundle of information which is of shorter duration than the unmodulated bundle of information and which is multiplexed by time zones.

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Palo Alto, CA, United States of America

Robert William Blomenkamp