International Business Machines Corporation

Diane K. Young

Daniel E. Skooglund

Dale E. Hoffman

Lawrence J. Grasso

Jeffrey H. Fischer

Diane K Young

Dale E Hoffman

Lawrence Joseph Grasso

Jeffrey Herbert Fischer

Daniel E Skooglund

Charles A Puntar

Carroll E Morgan

Lawrence J Grasso

Jeffrey H Fischer

A method of operating a delay circuit to impose a selected delay on an electronic signal the delay circuit comprising a plurality of delay stages and means for directing the electronic signal through selected ones of the delay stages, the method comprising the steps of: measuring the actual signal delay through each of the delay stages; and selecting, based on the signal delays obtained in the measuring step, the delay stages through which the electronic signal is directed.

Programmable delay line utilizing measured actual delays to provide a

A high speed counter circuit for counting electrical pulses includes a master/slave flip-flop at the input stage of the counter. An AND gate logically ANDs the pulses being counted with the master output to produce a first gating signal. A plurality of cascade coupled flip-flops each having a slave and an inverse slave output are provided. The clock input to each cascade coupled flip-flop is produced by the logical OR of the electrical pulses being counted, the first gating signal and the slave output of all preceding flip-flops of the counter. The counter output is provided by the inverse slave output of each flip-flop.

High speed digital counter

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Wappingers Falls, NY, United States of America

Diane K Young