Data transmission apparatus

Details Data transmission apparatus Data transmission apparatus

1988-02-19

1991-07-09

Popek, Joseph A.

Boots, shoes, and leggings

34082505, 3642293, 3642304, 3642392, 3642412, G06F 300

Patent

active

050310950

ABSTRACT:
When an input data of a slave station makes any change, the slave station transmit a serial information (in serial data frame, FIG. 2) which is made by altering an information continuously transmitted from a master station into a serial information to be transmitted by interrupt, which serial information includes a start information (in start bit), interrupt information (in interrupt field), address information (in address field) of this slave station and data information (in data field) produced in this sub-station responding the change, and it is transmitted by the interrupt; therefore the master station can find the interrupt-transmitted serial information among many serial informations sent back thereto, and the slave station can immediately transmit the change to the master station without wasting time by waiting for one turn scanning of all the slave stations.

REFERENCES:
patent: 4028667 (1977-06-01), Breslau et al.

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