Patents by Inventor Jürgen Rogin

Jürgen Rogin 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).

  • Double balanced mixer with switching pairs complementary to each other
    Patent number: 9071196
    Abstract: A double balanced mixer has a DC detection circuit connected to receive the output of the mixer core. The detected level is applied to adjust the duty cycle of the transistors of the mixer core. In one example, this adjusting level is added to the local oscillator signals that are applied to the core. In another example, the level is applied to adjust the threshold of the transistors of the mixer core. In a further example, the duty cycle of the local oscillator signals is adjusted before it is applied to the mixer core Also provided is an input stage for a double balanced mixer core, which comprises a transistor having a low pass filter as a feedback circuit.
    Type: Grant
    Filed: July 1, 2005
    Date of Patent: June 30, 2015
    Inventors: Qiuting Huang, Jürgen Rogin