Browsing by Author "Su"

Now showing 1 - 3 of 3

High-resolution intelligent rotor machine diagnostic system and method
(2006-07-18)
Bai
;
Ming-Sian
;
Hung
;
Ming-Hung
;
Huang
The present invention relates to a smart system and method of performing high-resolution frequency order analysis/diagnosis on rotor, in which such system is characterized in that capable of performing order analysis via a Kalman filter or a RLS (Recursive Least Square) algorithm while determining the failure status based on the Fuzzy theory. The smart system of present invention comprises a data acquisition means, a bench data setup means, a STFT time-spectra analysis/re-sampled order tracking means, a Kalman filter or RLS algorithmic means, a fuzzy diagnosis means and a window interface (e.g., GUI) while repeatedly making use the functions of those means so as to achieve the real-time diagnosis on rotor.
Nonvolatile memory device with nanowire channel and method for fabricating the same
(2010-05-25)
Lin
;
Horng-Chih
;
Su
;
Chun-Jung
;
Hsu
A nonvolatile memory device with nanowire channel and a method for fabricating the same are proposed, in which side etching is used to shrink side walls of a side-gate to form a nanowire pattern, thereby fabricating a nanowire channel on the dielectric of the side walls of the side-gate. A nonvolatile memory device with nanowire channel and dual-gate control can thus be achieved. This nonvolatile memory device can enhance data writing and erasing efficiency, and also has the capability of low voltage operation. Moreover, through a process of low cost and easy steps, highly reproducible and mass producible fabrication of nanowire devices can be accomplished.
Self-calibrating high-speed analog-to-digital converter
(2009-01-06)
Su
;
Chau-Chin
;
Lu
;
Hung-Wen
;
Chi
In a precisely self-calibrating high-speed analog to digital converter the aspect ratios of tri-state inverters are adjusted to fine-tune threshold voltage as comparators. And the multiplexers composed of tri-state inverters amplify the signal from the output of comparators. Their switches of tri-state inverters may be properly controlled to select the optimal channels and reduce unnecessary power consumption. The calibration circuitry utilizes under-sampling to calculate the duty cycles of comparators, selecting the optimal comparators and channels. By the way, the invention may avoid process variation.