Detection method of bus termination

Details Detection method of bus termination Detection method of bus termination

1996-10-31

1999-08-17

Horabik, Michael

Communications: electrical

Continuously variable indicating

With meter reading

34082505, 34082516, 34082508, 34082577, 34082578, 370489, 370257, 381 77, 381 80, 381 82, 381 86, H04N 718

Patent

active

059399970

ABSTRACT:
A system for detecting whether a bus used to connect units in an in-flight entertainment system is properly terminated. A detection circuit generates a bus termination signal when a terminating cap properly terminates the bus. Prior to installation of the terminating cap, a bus coupling contact of the detection circuit is maintained in a logic high or asserted state. A detection loop in the terminating cap grounds or deasserts the bus coupling contact when the terminating cap is properly installed. A microcontroller determines whether the bus coupling contact is grounded and signals a managing unit of the condition. The managing unit may display an appropriate error message to notify service personnel of the improper termination.

REFERENCES:
patent: 3795771 (1974-03-01), Gundersen et al.
patent: 4853555 (1989-08-01), Wheat
patent: 4866515 (1989-09-01), Tagawa et al.
patent: 4896209 (1990-01-01), Matsuzaki et al.
patent: 4897714 (1990-01-01), Ichise et al.
patent: 5123015 (1992-06-01), Brady Jr., et al.
patent: 5365515 (1994-11-01), Graham
patent: 5404567 (1995-04-01), DePietro et al.
patent: 5557541 (1996-09-01), Schulhof et al.
patent: 5568484 (1996-10-01), Margis
patent: 5586937 (1996-12-01), Menashe
patent: 5705860 (1998-01-01), Ninh et al.

Affiliated with

Also associated with

Rating

Detection method of bus termination does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Detection method of bus termination, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Detection method of bus termination will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-318764