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:
Jun. 17, 2014

Filed:

Apr. 21, 2009
Applicants:

Jong-hyuk Kwon, Chungcheongbuk-do, KR;

Tae-kyoung Kang, Chungcheongbuk-do, KR;

Kwon-young OH, Chungcheongbuk-do, KR;

Inventors:

Jong-Hyuk Kwon, Chungcheongbuk-do, KR;

Tae-Kyoung Kang, Chungcheongbuk-do, KR;

Kwon-Young Oh, Chungcheongbuk-do, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/36 (2006.01);
U.S. Cl.
CPC ...
Abstract

A discharge circuit of a device including a drive circuit operating by an inputted negative voltage includes: a discharge unit connected between a first input terminal receiving the negative voltage and a second input terminal receiving a ground voltage, and configured to discharge the negative voltage to the ground voltage of the second input terminal in response to a control signal; and a control unit connected between the first input terminal and a third input terminal receiving an operation voltage corresponding to a normal operation mode and an abnormal operation mode of the drive circuit, and configured to generate the control signal in response to an operation signal for determining an operation state and a non-operation state in the normal operation mode of the drive circuit.


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