1984-03-28
1987-02-24
Fleming, Michael R.
Excavating
328 55, H04M 322
Patent
active
046462970
ABSTRACT:
A detector circuit for detecting skew or phase shift of at least three logic signals comprises an OR gate for receiving a plurality of logic signals, an exclusive-OR gate for receiving an output signal from the OR gate as well as a reference logic signal, and a pulse width check circuit responsive to the exclusive-OR gate for providing the skew detection result.
REFERENCES:
patent: 4044329 (1977-08-01), Besenfelder
patent: 4520483 (1985-05-01), Arita
patent: 4556947 (1985-12-01), Prioste
Crowther, Skew Measuring Circuit, IBM Tech. Discl. Bulletin, vol. 13, No. 9, Feb. 1971.
Hasegawa Kazumi
Palmquist Steven R.
Takita Kentaro
Fleming Michael R.
Gray Francis I.
Hulse Robert S.
Tektronix Inc.
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