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:
Apr. 15, 2014
Filed:
Jan. 10, 2013
Himax Technologies Limited, Tainan, TW;
Hung-Yu Huang, Tainan, TW;
Jia-Hui Wang, Tainan, TW;
Himax Technologies Limited, Tainan, TW;
Abstract
A digital-to-analog conversion apparatus and a current-mode interpolation buffer thereof are provided. The current-mode interpolation buffer comprises a current source, a first differential transistor pair, a second differential transistor pair and an output stage. The current source outputs a first current and draws a second current. Wherein, the amperages of the first current and the second current are dependent on a digital code. First differential transistor pair generates a first differential current according a first rough voltage, an analog voltage and the first current. Second differential transistor pair generates a second differential current according a second rough voltage, the analog voltage and the second current. Output stage generates the analog voltage according to the first differential current and the second differential current, where the analog voltage belongs to a rough range from the first rough voltage to the second rough voltage.