Bus system with line control during the low-power phase

Details Bus system with line control during the low-power phase Bus system with line control during the low-power phase

2001-12-21

2009-06-09

Butler, Dennis M (Department: 2115)

Electrical computers and digital processing systems: support

Computer power control

Power conservation

C713S323000, C714S055000

Reexamination Certificate

active

07546474

ABSTRACT:
In a bus system with a low-power phase, in which bus members are in a state of reduced current consumption and leave this state when the bus lines (1, 2) are active for a longer period than a predetermined time interval, the function of the bus in the low-power phase is monitored in that a first participant (3) cyclically transmits at least one pulse on the bus during the low-power phase, which pulse has a duration that is shorter than the predetermined time interval and is received and evaluated at least by a second bus member (4) for the purpose of monitoring the bus lines (1, 2).

REFERENCES:
patent: 5563799 (1996-10-01), Brehmer et al.
patent: 5781585 (1998-07-01), Dorner et al.
patent: 5994931 (1999-11-01), Heinen et al.
patent: 6438462 (2002-08-01), Hanf et al.
patent: 2002/0046355 (2002-04-01), Takeuchi
patent: 195 09 133 (1995-10-01), None
patent: 196 37 312 (1998-03-01), None
patent: WO 99 46888 (1999-09-01), None

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