Honeywell Information Systems Inc.

Randall D Hinrichs

Gary J Goss

Robert G Moles

Thomas O Holtey

An apparatus for decoding data wherein only binary ZEROs are received as electronic pulses, each pulse alternating in opposite directions and wherein binary ONEs require no pulse. The apparatus includes logic for receiving the negative and positive binary ZERO pulses, retiming the pulses and generating a positive pulse for each binary ZERO pulse. The positive pulse is retimed to a pair of complementary pulses and applied to a receiving device, typically a universal synchronous/asynchronous receiver transmitter (USART).

Digital decode logic for converting successive binary zero pulses having

An apparatus for decoding and synchronizing data wherein only logic ZERO data bits are received as electronic pulses, each pulse alternating in opposite directions and wherein logic ONE data bits are received as no pulse. The synchronization logic includes a counter which is delayed a count of binary ONE if the logic ZERO data bit is received late, and the counter is advanced a count of binary ONE if the logic ZERO data bit is received early.

Digital apparatus for synchronizing a stream of data bits to an internal

An apparatus for encoding data for serial transmission wherein only logic ZEROs are transmitted as electronic pulses, each pulse alternating in opposite direction and wherein logic ONEs require no pulse.

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Belmont, MA, United States of America

Randall D Hinrichs