Bus line drive circuit

Details Bus line drive circuit Bus line drive circuit

1982-07-16

1984-12-04

Yusko, Donald J.

Communications: electrical

Continuously variable indicating

With meter reading

307568, 307242, H04Q 900, H03K 508

Patent

active

044867530

ABSTRACT:
A bus line drive circuit comprising a bus line allowing data to transfer therethrough, a precharge circuit connected to the bus line for precharging the bus line with precharge pulse, input/output circuit connected to the bus line for transferring data to and from an ALU through the bus line, and positive feedback circuit connected to the bus line, which exhibits a high impedance during a precharge period to electrically be disconnected from the bus line, keeps a precharge potential when the potential on the bus line is equal to the precharge potential during an active period, and expands a potential difference when the potential on the bus line is slightly different from the precharge potential.

REFERENCES:
patent: 3806880 (1974-04-01), Spence
patent: 4153933 (1979-05-01), Blume, Jr. et al.
patent: 4348601 (1982-09-01), Kitamura
patent: 4433393 (1984-02-01), Oritani

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