Impedance controller and impedance control method

Details Impedance controller and impedance control method Impedance controller and impedance control method

2007-01-30

2007-01-30

Le, Don (Department: 2819)

Electronic digital logic circuitry

Interface

Current driving

C326S030000, C326S026000, C326S087000

Reexamination Certificate

active

11031244

ABSTRACT:
An impedance controller includes a current mirror section to generate an impedance current. At least one detector includes a transistor array and an impedance corresponding to the impedance current, the at least one detector operating responsive to a code generator. And an at least one code generator generates a first code to adjust a gate voltage of the transistor array by comparing an output of the at least one detector to a reference voltage and generates a second code to adjust a size of the transistor array by comparing the output from the at least one detector to the reference voltage.

REFERENCES:
patent: 6307791 (2001-10-01), Otsuka et al.
patent: 6573746 (2003-06-01), Kim et al.
patent: 6839286 (2005-01-01), Cho et al.
patent: 6947336 (2005-09-01), Kim et al.
patent: 6980020 (2005-12-01), Best et al.
patent: 6982610 (2006-01-01), Govind
patent: 2003/0050838 (2003-03-01), Suzaki et al.
patent: 2005/0134303 (2005-06-01), Best et al.
patent: 2002-42093 (2002-06-01), None
English language abstract of Korean Patent No. 10-394586, Publication No. 2002-42093, Jun. 5, 2002.

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