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:
Jul. 31, 2012
Filed:
Mar. 11, 2011
Hung-yu Huang, Tainan, TW;
Hung-Yu Huang, Tainan, TW;
Himax Technologies Limited, Tainan, TW;
Abstract
An output buffer including a differential amplifier, a first and a second output stage, and a first and a second control stage is provided. The differential amplifier receives an input and a feedback signal and accordingly adjusts the level of the first and second control signals. The first control stage determines to provide a first current to an output terminal of the output buffer according to the level of the first and second control signals. The first control stage is biased under a high voltage and outputs one of the first control signal and the high voltage. The second control stage is biased under the low voltage and outputs one of the second control signal and the low voltage. The second output stage determines to provide a second current to the output terminal of the output buffer according to the signal generated by the first and second control stages.