Antonelli, Terry & Wands
High-speed logic circuit with a constant current source arrangement
 A high-speed logic circuit including a logic part formed of a differential transistor circuit and a feedback part for feeding the in-phase output of the differential transistor circuit back to the out-of-phase input terminal of the differential transistor circuit is disclosed in which a constant current source circuit is provided in the feedback part to keep constant a current flowing through the feedback part. 
Hitachi, Ltd.
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inventional inventional inventional
Hiroyuki Masayoshi
Ito Yagyuu