Weak/strong bus driver

Details Weak/strong bus driver Weak/strong bus driver

1987-07-24

1990-07-10

Chan, Eddie P.

Boots, shoes, and leggings

307270, 307473, 36493542, H03K 19094

Patent

active

049411268

ABSTRACT:
Circuit and method is disclosed which prevents contention on a pulse-code modulated (PCM) bus, when different drivers are transmitting during adjacent time slots. The driver circuit switches automatically from a strong driver to a weak driver depending on whether a signal level is merely repeating or whether the level is transiting. Also the driver always employs the strong driver at the onset of transmission.

REFERENCES:
patent: 4242738 (1980-12-01), Dingwall
patent: 4477741 (1984-10-01), Moser, Jr.
patent: 4500988 (1985-02-01), Bennett et al.
patent: 4531068 (1985-07-01), Kraft et al.
patent: 4620310 (1986-10-01), Lvovsky et al.
patent: 4734909 (1988-03-01), Bennett et al.

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