Patents by Inventor Jurgen Rogin

Jurgen 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
  • Method and apparatus to linearize transconductors by predistortion
    Patent number: 8427233
    Abstract: A transconductor for providing an output current that is linear in the input voltage (Vin) comprises a main output transconductor (Ms, Mc) and a model transconductor (Msr1, Msr2, Mcr1, Mcr2) is comprised in a predistortion circuit (A), which measures the output of the model transconductor and the overall voltage input (Vin) to provide a control signal (Vc, Vc?) for the transconductors that compensates for their non-linearity.
    Type: Grant
    Filed: February 16, 2012
    Date of Patent: April 23, 2013
    Assignee: ACP Advanced Circuit Pursuit AG
    Inventors: Qiuting Huang, Dimitrios Filippos Papadopoulos, Jurgen Rogin
  • Method and apparatus to linearize transconductors by predistortion
    Publication number: 20120206199
    Abstract: A transconductor for providing an output current that is linear in the input voltage (Vin) comprises a main output transconductor (Ms, Mc) and a model transconductor (Msr1, Msr2, Mcr1, Mcr2) is comprised in a predistortion circuit (A), which measures the output of the model transconductor and the overall voltage input (Vin) to provide a control signal (Vc, Vc?) for the transconductors that compensates for their non-linearity.
    Type: Application
    Filed: February 16, 2012
    Publication date: August 16, 2012
    Applicant: ACP Advanced Circuit Pursuit AG
    Inventors: Qiuting Huang, Dimitrios Filippos Papadopoulos, Jurgen Rogin
  • Method and apparatus to linearize transconductors by predistortion
    Patent number: 8149052
    Abstract: A transconductor for providing an output current that is linear in the input voltage (Vin) comprises a main output transconductor (Ms, Mc) and a model transconductor (Msr1, Msr2, Mcr1, Mcr2) that are controlled by the same signal (Vc, Vc?). The latter transconductor (Msr1, Msr2, Mcr1, Mcr2) is comprised in a predistortion circuit (A), which measures the output of the model transconductor and the overall voltage input (Vin) to provide a control signal (Vc, Vc?) for the transconductors that compensates for their non-linearity.
    Type: Grant
    Filed: April 17, 2008
    Date of Patent: April 3, 2012
    Assignee: ACP Advanced Circuit Pursuit AG
    Inventors: Qiuting Huang, Dimitrios Filippos Papadopoulos, Jurgen Rogin
  • METHOD AND APPARATUS TO LINEARIZE TRANSCONDUCTORS BY PREDISTORTION
    Publication number: 20100182091
    Abstract: A transconductor for providing an output current that is linear in the input voltage (Vin) comprises a main output transconductor (Ms, Mc) and a model transconductor (Msr1, Msr2, Mcr1, Mcr2) that are controlled by the same signal (Vc, Vc?). The latter transconductor (Msr1, Msr2, Mcr1, Mcr2) is comprised in a predistortion circuit (A), which measures the output of the model transconductor and the overall voltage input (Vin) to provide a control signal (Vc, Vc?) for the transconductors that compensates for their non-linearity.
    Type: Application
    Filed: April 17, 2008
    Publication date: July 22, 2010
    Applicant: ACP Advanced Circuit Pursuit AG
    Inventors: Qiuting Huang, Dimitrios Filippos Papadopoulos, Jurgen Rogin
  • Circuits
    Publication number: 20080032646
    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: Application
    Filed: January 1, 2005
    Publication date: February 7, 2008
    Applicant: ACP Advanced Circuit Pursuit AG
    Inventors: Qiuting Huang, Jurgen Rogin