Data communication method and apparatus

Details Data communication method and apparatus Data communication method and apparatus

1989-05-01

1992-02-18

Safourek, Benedict V.

Pulse or digital communications

Spread spectrum

Direct sequence

34082514, 370 941, 375111, H04J 326

Patent

active

050900293

ABSTRACT:
A method and apparatus for transmission of data among computers or peripherals along a loop transmission line includes a master system which provides signals along the transmission line for establishing a series of data frames of equivalent length. Each data frame is assigned a frame number, and is allotted a preselected amount of available space for placement of data. Subsequent computers or peripherals are preprogramed with a series of frame numbers which identify those data frames into which they may write data, or from which data is to be read. The allotment of preselected frame numbers for placement and reception of data by the respective devices provides for equivalent sharing of the available data transmission capability of the loop transmission system.

REFERENCES:
patent: 3710027 (1973-01-01), Herter et al.
patent: 4054753 (1977-10-01), Kaul et al.
patent: 4135060 (1979-01-01), Heckel et al.
patent: 4136384 (1979-01-01), Oxada et al.
patent: 4596013 (1986-06-01), Tashiro et al.
Faber, Georg, Bussysteme, R. Oldenbourg, Munich, 1984, pp. 109-110; 111-113; 115.

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