Data transfer device and data transfer method

Details Data transfer device and data transfer method Data transfer device and data transfer method

1995-03-27

1999-03-23

Pham, Chi H.

Pulse or digital communications

Systems using alternating or pulsating current

375368, 370489, H04L 2700

Patent

active

058870334

ABSTRACT:
A data transfer device connected to a bus and a control signal line, includes: a judgment circuit for judging whether or not a state change of the bus, which occurs in a case where the data is manipulated to be output to the bus, is smaller than the state change of the bus, which occurs in a case where data is output to the bus without manipulating the data; a first manipulation circuit for manipulating the data in accordance with the result of judgment; a first output circuit for selectively outputting one set of the data and the data manipulated by the first manipulation circuit to the bus in accordance with the result of judgment; and a second output circuit for outputting a control signal indicating the result of judgment to the control signal line.

REFERENCES:
patent: 4396906 (1983-08-01), Weaver
patent: 5121397 (1992-06-01), Norrod
patent: 5271016 (1993-12-01), Hilden et al.
patent: 5278960 (1994-01-01), Shibuya

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