Driver impedance control apparatus and system

Details Driver impedance control apparatus and system Driver impedance control apparatus and system

2005-09-14

2008-03-04

Tan, Vibol (Department: 2819)

Electronic digital logic circuitry

Signal sensitivity or transmission integrity

Bus or line termination

C326S083000, C326S086000, C327S108000

Reexamination Certificate

active

07339398

ABSTRACT:
A driver impedance control apparatus and system for determining the impedance of at least one driver are provided. The driver impedance control apparatus includes a first reference impedance, a second reference impedance, a dummy pull-up array, a dummy pull-down array, a pull-up array control unit and a pull-down array control unit. The pull-up array control unit controls the pull-up impedance of the driver by detecting a voltage from a first voltage divide point between the first reference impedance and the dummy pull-up array. The pull-down array control unit controls the pull-down impedance of the driver by detecting a voltage from a second voltage divide point between the second reference impedance and the dummy pull-down array.

REFERENCES:
patent: 6541996 (2003-04-01), Rosefield et al.
patent: 6836170 (2004-12-01), Kitagawa et al.
patent: 7170318 (2007-01-01), Kim et al.
patent: 2003/0062920 (2003-04-01), Radhakrishnan
patent: 2004/0113652 (2004-06-01), Lundberg
patent: 2004/0239391 (2004-12-01), Culler

Affiliated with

Also associated with

Rating

Driver impedance control apparatus and system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Driver impedance control apparatus and system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Driver impedance control apparatus and system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3963110