Patents by Inventor Willmut Zschunke

Willmut Zschunke 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).

  • Method for dividing the bit rate of QPSK signals into two or several subchannels
    Patent number: 7515645
    Abstract: The invention relates to a method for dividing the bit rate of QPSK signals by splitting the spectrum of said QPSK signals into at least two channels having band-limited filters in the modulator and demodulator. The prefiltered QPSK signal is split into at least one real and at least one imaginary spectrum at the transmitter end, is transmitted in frequency multiplex, and the filters in the modulator of the transmitter and the demodulator of the receiver are dimensioned according to the transmission function.
    Type: Grant
    Filed: July 29, 2003
    Date of Patent: April 7, 2009
    Assignee: Interessengemeinschaft für Runfunkschutzrechte GmbH Schutzrechtsverwertung & Co. KG
    Inventors: Willmut Zschunke, Khishigbayer Dushchuluun
  • Signal processing of an amplitude-modulated and/or phase-modulated high-frequency signal
    Patent number: 7139535
    Abstract: The invention indicates a method for signal processing of an amplitude-modulated and/or phase-modulated high-frequency signal (RF signal), in which the RF signal is broken down into two signals (FM1 and FM2) by relative phase displacement by an angle +? and ?? and the signals are amplified before they are added to form a transmission signal, and to a circuit arrangement in which the pure phase-modulated RF signal is multiplied in a first branch by cos ? and in a second branch by sin ? and the two signals (FM1, FM2) are obtained by respective summation and subtraction of the multiplied signals.
    Type: Grant
    Filed: January 16, 2002
    Date of Patent: November 21, 2006
    Assignee: Interessengemeinschaft für Rundfunkschutzrechte GmbH Schutzrechtsverwertung & Co. KG
    Inventor: Willmut Zschunke
  • Method for dividing the bit rate of qpsk signals into two or several subchannels
    Publication number: 20060056535
    Abstract: The invention relates to a method for dividing the bit rate of QPSK signals by splitting the spectrum of said QPSK signals into at least two channels having band-limited filters in the modulator and demodulator. The prefiltered QPSK signal is split into at least one real and at least one imaginary spectrum at the transmitter end, is transmitted in frequency multiplex, and the filters in the modulator of the transmitter and the demodulator of the receiver are dimensioned according to the transmission function.
    Type: Application
    Filed: July 29, 2003
    Publication date: March 16, 2006
    Inventors: Willmut Zschunke, Khishigbayer Dushchuluun
  • Signal processing of an amplitude-modulated and/or phase-modulated high frequency signal
    Publication number: 20040046524
    Abstract: The invention indicates a method for signal processing of an amplitude-modulated and/or phase-modulated high-frequency signal (RF signal), in which the RF signal is broken down into two signals (FM1 and FM2) by relative phase displacement by an angle +&bgr; and −&bgr; and the signals are amplified before they are added to form a transmission signal, and to a circuit arrangement in which the pure phase-modulated RF signal is multiplied in a first branch by cos &bgr; and in a second branch by sin &bgr; and the two signals (FM1, FM2) are obtained by respective summation and subtraction of the multiplied signals.
    Type: Application
    Filed: July 15, 2003
    Publication date: March 11, 2004
    Inventor: Willmut Zschunke