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Hsing-Fu
Hsing-Fu Huang, Hsinchu TW
| Patent application number | Description | Published |
|---|---|---|
| 20080266400 | Testing system and testing method - A testing system including an image sensor, a transformer, and a display device is disclosed. The image sensor generates an image signal according to a light source. The transformer transforms the image signal into a processing signal. The display device displays a frame according to the processing signal. | 10-30-2008 |
Hsing-Fu Lee, Sanchong TW
| Patent application number | Description | Published |
|---|---|---|
| 20090239010 | PHOTOMASK STORAGE APPARATUS - A photomask storage apparatus including a bottom plate and top lid is provided. The photomask storage apparatus includes poly-ether ketone (PEEK). A fastening element is configured to couple the lid to the bottom plate. A retaining element is secured to the lid to prevent vibrations of a photomask. A vent structure is also provided. The vent structure is configured such that airflow through the vent is purged in approximately 360 degrees into a chamber including the photomask. The vent structure may include a particulate filter. A seal liner is disposed on the bottom component. | 09-24-2009 |
Hsing-Fu Liu, Hsinchu City TW
| Patent application number | Description | Published |
|---|---|---|
| 20090213629 | POWERING CIRCUIT OF AC-DC CONVERTER - A powering circuit of an AC-DC converter, for converting a high AC input voltage into a low DC output voltage to provide a load voltage in a stable DC bias range, includes a rectifier, a sensing circuit, a control switching circuit, and a voltage regulating capacitor. The rectifier has a primary side coupled to an AC power supply and a secondary side for outputting a DC power supply. The sensing circuit compares the AC input voltage with a preset reference voltage, and turns on a second switch in the control switching circuit when the AC input voltage is lower than the reference voltage, thereby providing a low DC output voltage. The control switching circuit sustains the DC output voltage in a stable DC bias range. Therefore, in addition to reducing the power consumption of the second switch, this circuit structure is simple and can achieve the purpose of circuit integration. | 08-27-2009 |