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.
Patent No.:
Date of Patent:
Nov. 23, 2004
Filed:
Jun. 30, 2003
Dong-ho Hyun, Suwon, KR;
Jong-hyoung Lim, Suwon, KR;
Abstract
In a data output circuit for reducing a skewing error of a data signal, a first inversion unit receives a first data signal of an operating voltage level and inverts the received first data signal to obtain a first inverted data signal. If a first power supply voltage of an output voltage level is different from a second power supply voltage with the operating voltage level by at least a predetermined voltage level, a first voltage compensation unit compensates for the voltage level of the first inverted data signal to obtain a first driving signal. A second inversion unit receives a second data signal with the operating voltage level and inverts the received second data signal to obtain a second inverted data signal. If the levels of the first and second power supply voltages are different by at least a predetermined voltage level, a second voltage compensation unit compensates for the voltage level of the second inverted data signal to obtain a second driving signal. A driver unit receives the first and second driving signals and outputs an output data signal with a logic level that is opposite to the logic levels of the first and second driving signals.