Patents by Inventor Erik Busking

Erik Busking 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 switching system and method
    Patent number: 7885624
    Abstract: A communication system with variable filter bandwidth includes a first mixer circuit configured to receive a communication signal and shift the frequency range of the communication signal to a first frequency range. A second mixer circuit is configured to receive the same communication signal and shift the frequency range of the communication signal to a second frequency range. An activation circuit is coupled to the first and second mixer circuits so as to provide an activation signal that activates at least one of the mixer circuits. A plurality of filter circuits are provided such that each filter circuit is configured to receive a signal from a corresponding mixer circuit, when the corresponding mixer circuit is activated.
    Type: Grant
    Filed: June 1, 2009
    Date of Patent: February 8, 2011
    Assignee: Agere Systems Inc.
    Inventor: Erik Busking
  • Filter Switching System and Method
    Publication number: 20090239493
    Abstract: A communication system with variable filter bandwidth includes a first mixer circuit configured to receive a communication signal and shift the frequency range of the communication signal to a first frequency range. A second mixer circuit is configured to receive the same communication signal and shift the frequency range of the communication signal to a second frequency range. An activation circuit is coupled to the first and second mixer circuit so as to provide an activation signal that activates at least one of the mixer circuits. A plurality of filter circuits are provided such that each filter circuit is configured to receive a signal from a corresponding mixer circuit, when said corresponding mixer circuit is activated.
    Type: Application
    Filed: June 1, 2009
    Publication date: September 24, 2009
    Applicant: AGERE SYSTEMS INC.
    Inventor: Erik Busking
  • Gate Bias Generator
    Publication number: 20080030274
    Abstract: The problem to be solved is incomplete compensation of threshold voltage spreading in amplifier FETs for example in MMIC's. The problem is solved in a gate bias circuit comprising a first constant current source (I1) connected between the gate of an amplifier FET (T1) and a second voltage source (V2), whereby the gate of the amplifying FET (T1) is terminated with a first resistor (R1) to an electrical ground, further comprising by a second current constant current source (I2) connected between the gate of the FET (T1) and a first voltage source (V1).
    Type: Application
    Filed: September 27, 2005
    Publication date: February 7, 2008
    Applicant: Nederlandse Organisatie voor toegepast-natuurwetenschappelijk Onderzoek TNO
    Inventor: Erik Busking
  • Filter switching system and method
    Publication number: 20040002317
    Abstract: A communication system with variable filter bandwidth includes a first mixer circuit configured to receive a communication signal and shift the frequency range of the communication signal to a first frequency range. A second mixer circuit is configured to receive the same communication signal and shift the frequency range of the communication signal to a second frequency range. An activation circuit is coupled to the first and second mixer circuits so as to provide an activation signal that activates at least one of the mixer circuits. A plurality of filter circuits are provided such that each filter circuit is configured to receive a signal from a corresponding mixer circuit, when said corresponding mixer circuit is activated.
    Type: Application
    Filed: June 27, 2003
    Publication date: January 1, 2004
    Applicant: Agere Systems Guardian Corp.
    Inventor: Erik Busking
  • Filter switching system and method
    Publication number: 20020132599
    Abstract: A communication system with variable filter bandwidth includes a first mixer circuit configured to receive a communication signal and shift the frequency range of the communication signal to a first frequency range. A second mixer circuit is configured to receive the same communication signal and shift the frequency range of the communication signal to a second frequency range. An activation circuit is coupled to the first and second mixer circuits so as to provide an activation signal that activates at least one of the mixer circuits. A plurality of filter circuits are provided such that each filter circuit is configured to receive a signal from a corresponding mixer circuit, when said corresponding mixer circuit is activated.
    Type: Application
    Filed: May 2, 2002
    Publication date: September 19, 2002
    Applicant: Agere Systems Guardian Corp.
    Inventor: Erik Busking
  • Filter switching system and method
    Patent number: 6442382
    Abstract: A communication system with variable filter bandwidth includes a first mixer circuit configured to receive a communication signal and shift the frequency range of the communication signal to a first frequency range. A second mixer circuit is configured to receive the same communication signal and shift the frequency range of the communication signal to a second frequency range. An activation circuit is coupled to the first and second mixer circuits so as to provide an activation signal that activates at least one of the mixer circuits. A plurality of filter circuits are provided such that each filter circuit is configured to receive a signal from a corresponding mixer circuit, when said corresponding mixer circuit is activated.
    Type: Grant
    Filed: June 27, 1997
    Date of Patent: August 27, 2002
    Assignee: Agere Systems Guardian Corp.
    Inventor: Erik Busking