The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Apr. 26, 2022

Filed:

Feb. 01, 2021
Applicants:

SK Hynix Inc., Icheon, KR;

Seoul National University R&db Foundation, Seoul, KR;

Inventors:

Changho Hyun, Seoul, KR;

Suhwan Kim, Seoul, KR;

Assignees:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 17/16 (2006.01); H03K 19/017 (2006.01); H03K 19/17728 (2020.01); H03K 19/173 (2006.01); H03K 19/09 (2006.01); H03K 19/0185 (2006.01);
U.S. Cl.
CPC ...
H03K 19/01742 (2013.01); H03K 19/018557 (2013.01); H03K 19/09 (2013.01); H03K 19/1733 (2013.01); H03K 19/17728 (2013.01);
Abstract

A transmitter includes a driving circuitry configured to drive a channel coupled to an output node by controlling an output impedance of a pull-up path, an output impedance of a pull-down path, or both, according to one or more multi-bit data signals, a pull-up control signal, and a pull-down control signal; a driving control circuit configured to generate the pull-up control signal and the pull-down control signal according to one or more calibration signals and the multi-bit data signals or according to the calibration signals and one or more duplicate multi-bit data signals, the duplicate multi-bit data signals duplicating the multi-bit data signals; and a look-up table storing values of the calibration signals.


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