Loop type data highway system

Details Loop type data highway system Loop type data highway system

1977-03-24

1979-01-23

Shaw, Gareth D.

Boots, shoes, and leggings

G06F 304

Patent

active

041363841

ABSTRACT:
A loop type data highway system in which a plurality of data transmission control stations (abbreviated hereinafter as stations) are connected to a single loop transmission line for data transmission and reception between any desired ones. A transmit station transmitting data makes a compare check to compare successive predetermined unit lengths of the transmitted data with the corresponding ones of the data returning after travelling round the loop, thereby detecting an error occurring during the data transmission when non-coincidence exists therebetween. A receive station receiving the data monitors the number of data words to be received, thereby detecting an error occurring during the data transmission when a data transmission end signal is detected prior to arrival of all the data words. Upon detection of the error occurring during the data transmission, the transmit station transmits the data transmission end signal to the receive station to inform the receive station of occurrence of the error.

REFERENCES:
patent: 3879710 (1975-04-01), Maxenichuk et al.
patent: 4019176 (1977-04-01), Cour et al.

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