Circuit for calibrating impedance and semiconductor...

Details Circuit for calibrating impedance and semiconductor... Circuit for calibrating impedance and semiconductor...

2011-08-02

2011-08-02

Barnie, Rexford (Department: 2819)

Electronic digital logic circuitry

Signal sensitivity or transmission integrity

Bus or line termination

C326S082000

Reexamination Certificate

active

07990174

ABSTRACT:
A circuit for calibrating impedance includes an enable signal generator, a code generator and a connection controller. The enable signal generator generates an enable signal in response to a chip selection signal. The code generator generates an impedance calibration code in response to the enable signal by using an external resistance coupled to an electrode. The connection controller controls connection between the code generator and the electrode in response to the enable signal.

REFERENCES:
patent: 7477083 (2009-01-01), Fujisawa et al.
patent: 7528626 (2009-05-01), Kim
patent: 7773440 (2010-08-01), Kim et al.
patent: 2007/0132493 (2007-06-01), Fujisawa et al.
patent: 2007/0148796 (2007-06-01), Nakamura et al.
patent: 2008/0219068 (2008-09-01), Kim et al.
patent: 2008/0304336 (2008-12-01), Kim et al.
patent: 2009/0009212 (2009-01-01), Brox
patent: 2007-116574 (2007-05-01), None
patent: 2007-123987 (2007-05-01), None
patent: 2008-219865 (2008-09-01), None
patent: 2008-228276 (2008-09-01), None
patent: 1020050100290 (2005-10-01), None
patent: 10-0541557 (2005-12-01), None
patent: 1020050118751 (2005-12-01), None

Affiliated with

Also associated with

Rating

Circuit for calibrating impedance and semiconductor... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Circuit for calibrating impedance and semiconductor..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Circuit for calibrating impedance and semiconductor... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2779555