Information distribution system

Details Information distribution system Information distribution system

1989-02-24

1991-04-09

Atkinson, Charles E.

Excavating

G08C 2502

Patent

active

050070550

ABSTRACT:
An information distribution system includes a node station and a plurality of terminal devices connected through transmission lines with the node station. The node station includes a distribution information storage unit for storing information which is to be distributed to the plurality of terminal devices, and a re-transmission request response unit for re-transmitting information in question in response to requests from the plurality of terminal devices. Each of the terminal devices includes an error checking unit for checking transmission failure in the data transmission based on the received information. The transmitted information is divided into a plurality of blocks, and, after the completion of reception of all block-form information, a re-transmission of information is requested, and based on this request, a re-transmission of information is carried out.

REFERENCES:
patent: 3979719 (1976-09-01), Tooley et al.
patent: 4149142 (1979-04-01), Kageyama et al.
patent: 4422171 (1983-12-01), Wortley et al.
patent: 4896151 (1990-01-01), Kuranami et al.

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