Serial bus system and method for selection of bus subscribers

Details Serial bus system and method for selection of bus subscribers Serial bus system and method for selection of bus subscribers

1985-04-24

1988-02-02

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 4, H04J 302

Patent

active

047232390

ABSTRACT:
In a serial bus system an active representation of the logic states of a bus signal for transmission of both logic states is implemented either on two separate lines for separate transmission of the logic states thereon or on a single line with both logic states being represented by different frequencies.
In the method selection of a subscriber connected to the bus, the subscribers wishing to transmit a message indicate this by issuing a collision signal to the bus. The time period during which the collision signal is issued by each subscriber is chosen in such a way that each subscriber of the bus has the possibility to be prepared for the selection. The selection of the subscriber wishing to transmit a message then is done by means of an address comparison on a bit-by-bit basis.

REFERENCES:
patent: 4084069 (1978-04-01), Looschen
patent: 4409593 (1983-10-01), Bose
patent: 4500990 (1985-02-01), Akashi
patent: 4584575 (1986-04-01), Ryckeboer

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