Information processing apparatus and backboard having on backboa

Details Information processing apparatus and backboard having on backboa Information processing apparatus and backboard having on backboa

1996-04-15

1998-10-13

Westin, Edward P.

Electronic digital logic circuitry

Signal sensitivity or transmission integrity

Bus or line termination

326 86, 326 80, 326 33, H03K 1716, H03K 190175

Patent

active

058217673

ABSTRACT:
In an information processing apparatus including a backboard having a bus for transmitting signals therethrough, at least one module, and a connector to connect the bus to the module, the backboard includes two terminators disposed respectively at both ends of the bus for providing matched termination according to a characteristic impedance of the bus to which the module is connected and a matching resistor disposed between the bus and the module. The matching resistor has a resistance value Rm represented as

REFERENCES:
patent: 3694655 (1972-09-01), Belluche
patent: 3832575 (1974-08-01), Dasgupta et al.
patent: 5003467 (1991-03-01), Donaldson et al.
patent: 5105340 (1992-04-01), Lawrence
patent: 5534801 (1996-07-01), Wu et al.
patent: 5627481 (1997-05-01), Takekuma et al.

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