Patents by Inventor Tachien David Huang

Tachien David Huang 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).

  • Filter for attenuating undesired frequencies in a signal
    Patent number: 9059675
    Abstract: In some implementations, a circuit includes an operational amplifier having a positive input, a negative input, and an output, the output being connected to the negative input; a first capacitor to receive the input signal; a second capacitor connected in series with the first capacitor, the second capacitor to provide a first signal to a positive input of the operational amplifier; a first resistor connected in series with the first capacitor, the first resistor to provide a second signal to the negative input of the operational amplifier; a second resistor to receive the input signal; a third resistor connected in series with the second resistor, the third resistor to provide a third signal to the positive input of the operational amplifier; and a third capacitor connected in series with the second resistor, the third capacitor to provide a fourth signal to the negative input of the operational amplifier.
    Type: Grant
    Filed: April 5, 2013
    Date of Patent: June 16, 2015
    Assignee: Marvell International Ltd.
    Inventors: Tachien David Huang, Kenneth Thet Zin Oo, Pierte Roo