Impedance adjusting circuit and semiconductor memory device...

Electronic digital logic circuitry – Signal sensitivity or transmission integrity – Bus or line termination

Reexamination Certificate

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Reexamination Certificate

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07843211

ABSTRACT:
An impedance adjusting circuit includes: a calibration circuit configured to generate a first calibration code and a second calibration code for determining termination resistance; a transmission line circuit configured to transfer the first calibration code during a first section and to transfer the second calibration code during a second section; and a termination resistor circuit adapted to match an impedance with a resistance determined by receiving the first and second calibration codes.

REFERENCES:
patent: 6836144 (2004-12-01), Bui et al.
patent: 6958613 (2005-10-01), Braun et al.
patent: 6980020 (2005-12-01), Best et al.
patent: 7151390 (2006-12-01), Nguyen et al.
patent: 7170313 (2007-01-01), Shin
patent: 7176711 (2007-02-01), Park et al.
patent: 2004/0236814 (2004-11-01), White
patent: 2006/0226868 (2006-10-01), Lee et al.
patent: 2007/0126466 (2007-06-01), Kim
patent: 2007/0236247 (2007-10-01), Wang et al.
patent: 2005-285125 (2005-10-01), None
patent: 2006-129423 (2006-05-01), None
patent: 20050101865 (2005-10-01), None

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