Electronic digital logic circuitry – Interface – Current driving
Reexamination Certificate
2007-05-29
2007-05-29
Tran, Anh Q. (Department: 2819)
Electronic digital logic circuitry
Interface
Current driving
C326S090000, C326S026000, C326S027000
Reexamination Certificate
active
10556250
ABSTRACT:
A bus communication system contains a pair of communication conductors and a driver. The driver contains a plurality of pairs of controlled current source circuit, each pair comprising current source circuits of a first and second, mutually opposite polarity, and a control circuit for matching currents drawn by the current sources in each pair. The current source circuit of the first polarity have outputs coupled to a first one of the communication conductors, the current source circuits of the second polarity have outputs coupled to a second one of the communication conductors. A delay line is provided, with taps coupled to control inputs of the current sources of the first and second polarity, so that the pairs are switched on successively with mutual delays between successive pairs, as determined by the delay line.
REFERENCES:
patent: 5739707 (1998-04-01), Barraclough
patent: 6154061 (2000-11-01), Boezen et al.
patent: 6977534 (2005-12-01), Radelinow
patent: WO 02/37780 (2002-05-01), None
Kwakernaat Cecilius Gerardus
Visser Ruurd Anne
Waardenburg Cornelis Klaas
NXP B. V.
Tran Anh Q.
LandOfFree
Line driver with reduced interference does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Line driver with reduced interference, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Line driver with reduced interference will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3763147