Patents by Inventor Jui-Te Chiu

Jui-Te Chiu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7339430
    Abstract: A rail-to-rail operational amplifier is provided with a high-side current adjusting circuit and a low-side current adjusting circuit. On a basis of a comparison between a first input voltage and a second input voltage, the high-side current adjusting circuit adjusts a high-side bias current. Under a condition that the first input voltage is smaller than the second input voltage, the high-side current adjusting circuit increases the high-side bias current when an absolute value of a difference between the first and the second voltages increases. On a basis of the comparison between the first and the second input voltages, the low-side current adjusting circuit adjusts a low-side bias current. Under a condition that the first input voltage is larger than the second input voltage, the low-side current adjusting circuit increases the low-side bias current when the absolute value of the difference between the first and the second voltages increases.
    Type: Grant
    Filed: July 26, 2006
    Date of Patent: March 4, 2008
    Assignee: Aimtron Technology Corp.
    Inventor: Jui-Te Chiu
  • Publication number: 20080024217
    Abstract: A rail-to-rail operational amplifier is provided with a high-side current adjusting circuit and a low-side current adjusting circuit. On a basis of a comparison between a first input voltage and a second input voltage, the high-side current adjusting circuit adjusts a high-side bias current. Under a condition that the first input voltage is smaller than the second input voltage, the high-side current adjusting circuit increases the high-side bias current when an absolute value of a difference between the first and the second voltages increases. On a basis of the comparison between the first and the second input voltages, the low-side current adjusting circuit adjusts a low-side bias current. Under a condition that the first input voltage is larger than the second input voltage, the low-side current adjusting circuit increases the low-side bias current when the absolute value of the difference between the first and the second voltages increases.
    Type: Application
    Filed: July 26, 2006
    Publication date: January 31, 2008
    Inventor: Jui-Te CHIU
  • Publication number: 20070091979
    Abstract: A temperature measurement circuit has a current excitation circuit, a temperature calculation circuit, a calibration factor generator, and an analog-to-digital conversion circuit. The current excitation circuit supplies in sequence at least two currents to a thermal sensor. At least two output signals are correspondingly generated from the thermal sensor. In response to the at least two output signals, the temperature calculation circuit calculates an analog temperature signal representative of a temperature detected by the thermal sensor. The analog-to-digital conversion circuit converts the analog temperature signal into a digital signal based on a conversion reference level. The conversion reference level is shifted in accordance with a calibration value generated from the calibration factor generator.
    Type: Application
    Filed: October 25, 2005
    Publication date: April 26, 2007
    Inventor: Jui-Te CHIU