Calibration circuit, on die termination device and...

Details Calibration circuit, on die termination device and... Calibration circuit, on die termination device and...

2008-12-02

2010-12-28

Tan, Vibol (Department: 2819)

Electronic digital logic circuitry

Signal sensitivity or transmission integrity

Bus or line termination

C326S080000

Reexamination Certificate

active

07859296

ABSTRACT:
A calibration circuit includes a gain control device configured to adjust a reference voltage to a predetermined level according to a variable gain; and a calibration device configured to update a calibration code by comparing a voltage generated by resistors and the reference voltage adjusted to the predetermined level by the gain control device, wherein the resistors are individually controlled to be turned on by the calibration code.

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Notice of Preliminary Rejection issued from Korean Intellectual Property Office on Sep. 29, 2009 with an English Translation.
Notice of Allowance issued from Korean Intellectual Property Office on Dec. 28, 2009.

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