公开(公告)号：US06262593B1

公开(公告)日：2001-07-17

申请号：US09004335

申请日：1998-01-08

申请人： Gerald Edward Sobelman ,  Jason J. Hinze

发明人： Gerald Edward Sobelman ,  Jason J. Hinze

IPC分类号： H03K1923

CPC分类号： H03K19/0813

摘要： An m-of-n threshold gate is disclosed having an output stated derived from the voltage of a signal node. A “Go-to-Data” circuit pulls the signal node to a first state, corresponding to an ASSERTED (logically meaningful) output when a threshold number of inputs is in the ASSERTED state. A “Go-to-NULL” circuit pulls the signal node to a second state, corresponding to a NULL (logically meaningless) output when all inputs are in the NULL state. In a semi-dynamic embodiment, a weak feedback transistor holds the signal node in a predetermined state when some, but less than the threshold number of inputs is ASSERTED. In a dynamic embodiment, the signal node becomes isolated when less than the threshold number of inputs is ASSERTED, but holds sufficient charge to maintain the signal node in a state that existed at the time of isolation. A variety of GTN circuits are disclosed. Gates can be modified for the NULL state to be represented as ground (non-inverted) or other reference voltage (inverted). Alternating stages of inverted and non-inverted circuits can be used.

摘要翻译： 公开了一个n阈值门限，其具有从信号节点的电压导出的输出。 当阈值数量的输入处于ASSERTED状态时，“Go-to-Data”电路将信号节点拉到第一状态，对应于ASSERTED（逻辑上有意义的）输出。 当所有输入处于NULL状态时，“到空”电路将信号节点拉至第二状态，对应于NULL（逻辑上无意义的）输出。 在半动态实施例中，弱反馈晶体管将信号节点保持在预定状态，当一些但小于阈值数量的输入被确认时。 在动态实施例中，当小于阈值数量的输入被估计时，信号节点变得隔离，但是保持足够的电荷以将信号节点保持在隔离时存在的状态。 公开了各种GTN电路。 门可以修改为空状态表示为接地（非反相）或其他参考电压（反相）。 可以使用反相和非反相电路的交替级。