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:
Oct. 12, 2010
Filed:
Aug. 01, 2008
Chua-chin Wang, Kaohsiung, TW;
Tzung-je Lee, Kaohsiung, TW;
Kuo-chan Huang, Tainan County, TW;
Tie-yan Chang, Kaohsiung, TW;
Chua-Chin Wang, Kaohsiung, TW;
Tzung-Je Lee, Kaohsiung, TW;
Kuo-Chan Huang, Tainan County, TW;
Tie-Yan Chang, Kaohsiung, TW;
National Sun Yat-Sen University, Kaohsiung, TW;
Himax Technologies Limited, Sinshih Township, Tainan County, TW;
Abstract
An input output device coupled between a core circuit and a pad and including an output cell, an input cell, and a pre-driver. The output cell includes an output stage and a voltage level converter. The output stage includes a first transistor and a second transistor connected to the first transistor in serial between a first supply voltage and a second voltage. The voltage level converter generates a first gate voltage to the first transistor according to the first voltage and a data signal. When the first supply voltage is increased, the first gate voltage is increased. When the data signal is at a high level, the first transistor is turned on. The input cell includes a pull unit and a first N-type transistor. The pre-driver turns off the first and the second transistors.