Synchronous serial transfer apparatus and synchronous serial tra

Details Synchronous serial transfer apparatus and synchronous serial tra Synchronous serial transfer apparatus and synchronous serial tra

1997-11-04

1999-10-19

Pham, Chi H.

Pulse or digital communications

Systems using alternating or pulsating current

Plural channels for transmission of a single pulse train

375257, 375220, 370283, 710 61, H04K 110, H04B 300, H04B 340, G06F 1314

Patent

active

059700963

ABSTRACT:
In a synchronous serial transfer apparatus, the number of lines which are necessary for a serial transfer is reduced, and even when a master/slave operation is to be performed, a serial transfer is possible between any communication apparatuses without using communication apparatuses which have different structures from each other such as a master and slave apparatuses and without using a master apparatus. Communication apparatuses (TR1 to TR3) are connected parallel to each other by one communication line (TRL). A potential fixing apparatus (VC), which fixes a potential on the communication line (TRL) to "High" or "Low" when outputs from all communication apparatuses (TR1 to TR3) are in a "High-Z" state, is connected to the communication line (TRL).

REFERENCES:
patent: 5019966 (1991-05-01), Saito et al.
patent: 5878281 (1999-03-01), Itoh et al.

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