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:
Jan. 11, 2011
Filed:
Feb. 27, 2009
Yu-chi Huang, Hsinchu, TW;
Hsin-chao Chen, Chiayi, TW;
Yu-Chi Huang, Hsinchu, TW;
Hsin-Chao Chen, Chiayi, TW;
Industrial Technology Research Institute, Hsinchu, TW;
Abstract
A mixed-signal control apparatus of a modulation system is provided. The mixed-signal control apparatus includes a digital-to-analog converter (DAC) unit, an analog-to-digital converter (ADC) unit, and a processing unit. When a quantization step of the ADC unit is q, a quantization step of the DAC unit is q, and a transfer function of the modulation system is G, q≦Gq. A controlled variable is finely converted by using the ADC unit having a very high resolution. In such a way, it can be ensured that data in an analog domain can be transmitted to a discrete domain with the least distortion, thus achieving a robust and simple control.