Patents by Inventor Christoph Sandner

Christoph Sandner 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).

  • Patent number: 8090001
    Abstract: A fast frequency-hopping transceiver comprises a RF-unit arranged on a first chip, a base-band unit on a second chip, a bidirectional operable data and control interface arranged between said first and said second chip having at least one data line for data communication, at least one control line for controlling the data communication and at least one clock line for providing a clock signal, memory means implemented within said RF-unit containing all the required chip settings which are specific to a certain frequency of received and/or transmitted data being part of the intended hopping sequence. The transceiver also includes control means for programming said memory means during an initialization phase during a set-up of a communication link of said data communication.
    Type: Grant
    Filed: December 5, 2005
    Date of Patent: January 3, 2012
    Assignee: Lantiq Deutschland GmbH
    Inventors: Manfred Punzenberger, Stefano Marsili, Andreas Wiesbauer, Christoph Sandner, Yossi Erlich
  • Patent number: 7835457
    Abstract: A method and an arrangement for processing a received signal which comprises phase-shift modulated or amplitude-quadrature modulated part-signals which are transmitted in a plurality of different frequency bands, wherein the received signal is processed in a plurality of stages in succession, by multiplying all the input signals to each of the stages by two mutually orthogonal signals in each case to form two intermediate signals in each case, wherein the intermediate signals from one stage in each case act as the input signals to whichever is the succeeding stage in the particular case and the received signal acts as the input signal to the first stage, and wherein an in-phase and/or an quadrature component of the individual part-signals in the different frequency bands are determined from the intermediate signals from the last stage. Parallel, simultaneous reception of a plurality of frequency bands can be implemented relatively easily in this way.
    Type: Grant
    Filed: December 20, 2004
    Date of Patent: November 16, 2010
    Assignee: Infineon Technologies AG
    Inventors: Martin Friedrich, Christian Grewing, Giuseppe Li Puma, Christoph Sandner, Andreas Wiesbauer, Kay Winterberg, Stefan Van Waasen
  • Patent number: 7805124
    Abstract: Frequency pattern generator (1, 101, 201) for generating frequency pulses, said generator having a first local oscillator unit (2-1, 121, 221) for generating a first radio frequency carrier frequency signal (LO1), at least one second local oscillator unit (2-2, . . . 2-N, 122, 222) for generating at least one second radio frequency carrier frequency signal (LO2), a switching device (3, 103, 203) for passing on one of the radio frequency carrier frequency signals (LO1, LO2) or a zero signal (DC) in a manner dependent on a control signal (CTR), and a mixing stage (9, 109, 209, 212, 309) for mixing the signal (LO) that has been passed on by the switching device (3, 103, 203) with a mixing frequency signal (LF) to form a pulsed output signal (RFOUT), the pulsed output signal (RFOUT) having frequency pulses at a respective frequency (f1, . . . f8) and length (Tp) in a manner dependent on the control signal (CTR).
    Type: Grant
    Filed: April 25, 2005
    Date of Patent: September 28, 2010
    Assignee: Infineon Technologies AG
    Inventors: Martin Friedrich, Christian Grewing, Giuseppe Li Puma, Christoph Sandner, Andreas Wiesbauer, Kay Winterberg, Stefan Van Waasen
  • Patent number: 7602254
    Abstract: System and method for generating multiple local oscillator signals comprising a first-stage phase-locked loop (PLL) having an input to receive a first reference signal input and having an output to transmit a second reference signal, wherein the second reference signal is an integer or fractional multiple of the first reference signal; and a plurality of second-stage PLLs, each second-stage PLL having an input coupled to the output of the first-stage PLL and receiving the second reference signal, and each second-stage PLL having an output for transmitting a local oscillator signal, wherein each of the local oscillator signals is an integer multiple of the second reference signal.
    Type: Grant
    Filed: May 25, 2007
    Date of Patent: October 13, 2009
    Assignee: Infineon Technologies AG
    Inventors: Christoph Sandner, Staffan Ek, Stefano Marsili
  • Publication number: 20080290953
    Abstract: System and method for generating multiple local oscillator signals comprising a first-stage phase-locked loop (PLL) having an input to receive a first reference signal input and having an output to transmit a second reference signal, wherein the second reference signal is an integer or fractional multiple of the first reference signal; and a plurality of second-stage PLLs, each second-stage PLL having an input coupled to the output of the first-stage PLL and receiving the second reference signal, and each second-stage PLL having an output for transmitting a local oscillator signal, wherein each of the local oscillator signals is an integer multiple of the second reference signal.
    Type: Application
    Filed: May 25, 2007
    Publication date: November 27, 2008
    Inventors: Christoph Sandner, Staffan Ek, Stefano Marsili
  • Patent number: 7450913
    Abstract: Circuit arrangement for a wideband mixer (1, 101, 201) with a multiplicative mixing stage (2) which exhibits a carrier frequency input (3, 4) for coupling in a differential carrier frequency signal (LOP, LON), a mixing stage input (5, 6) for coupling in a predistorted differential input signal (LFPD, LFND), and an output (9, 10) for coupling out a differential output signal (OUTP, OUTN) which is generated from the differential carrier frequency signal (LOP, LON) and the predistorted differential input signal (LFPD, LFND) by multiplicative mixing, the predistorted differential input signal (LFPD, LFND) being generated from a differential input signal (LFP, LFN) by means of a quadratic predistortion and a linear predistortion.
    Type: Grant
    Filed: April 21, 2005
    Date of Patent: November 11, 2008
    Assignee: Infineon Technologies AG
    Inventors: Martin Friedrich, Christian Grewing, Giuseppe Li Puma, Christoph Sandner, Andreas Wiesbauer, Kay Winterberg, Stefan Van Waasen
  • Patent number: 7423495
    Abstract: An oscillator includes a first resonator circuit, a second resonator circuit coupled to the first resonator circuit and a reconfigurable network having a transconductance and coupled to at least one of the resonator circuits. Reconfiguration of the reconfigurable network with respect to the transconductance allows selection of one of multiple oscillation modes of the oscillator.
    Type: Grant
    Filed: June 26, 2006
    Date of Patent: September 9, 2008
    Assignee: Infineon Technologies AG
    Inventors: Andrea Bevilacqua, Federico Pietro Pavan, Christoph Sandner
  • Publication number: 20080007366
    Abstract: An oscillator includes a first resonator circuit, a second resonator circuit coupled to the first resonator circuit and a reconfigurable network having a transconductance and coupled to at least one of the resonator circuits. Reconfiguration of the reconfigurable network with respect to the transconductance allows selection of one of multiple oscillation modes of the oscillator.
    Type: Application
    Filed: June 26, 2006
    Publication date: January 10, 2008
    Inventors: Andrea Bevilacqua, Federico Pietro Pavan, Christoph Sandner
  • Patent number: 7271657
    Abstract: A traveling wave amplifier comprises a first normally off MOS transistor having a drain, source and gate terminal. The drain terminal is connected to a node of a drain line, which is connected to a first supply voltage potential via a connecting resistor. The gate terminal is connected to a node of a gate line, onto which an input signal is coupled. The source terminal is coupled to a second supply voltage potential via a first resistor. The traveling wave amplifier also comprises at least one second normally off MOS transistor. In addition, the traveling wave amplifier further comprises a normally off bias MOS transistor. The normally off bias MOS transistor forms a current mirror with at least one of the second normally off MOS transistors. An output signal of the traveling wave amplifier is tapped off on the drain line.
    Type: Grant
    Filed: April 29, 2005
    Date of Patent: September 18, 2007
    Assignee: Infineon Technologies AG
    Inventors: Martin Friedrich, Christian Grewing, Giuseppe Li Puma, Christoph Sandner, Andreas Wiesbauer, Kay Winterberg, Stefan Van Waasen
  • Publication number: 20070140645
    Abstract: A circuit arrangement for generating local oscillator signals is supplied with a reference frequency signal by means of a signal input. A frequency divider is used to derive a second signal from the reference frequency signal. The reference frequency signal and the second signal are supplied to a selection device, where one of the signals is output on the basis of a first selection signal. In an auxiliary signal generator, a single auxiliary signal at an auxiliary frequency is generated on the basis of a second selection signal. In a frequency conversion device, a local oscillator signal which can be tapped off on the signal output is derived from the output signals from the selection device and the auxiliary signal generator.
    Type: Application
    Filed: November 28, 2006
    Publication date: June 21, 2007
    Inventors: Stefano Marsili, Christoph Sandner
  • Patent number: 7187246
    Abstract: In the case of a voltage-controlled LC oscillator (4), the effects of supply voltage fluctuations are reduced according to the invention, due to the fact that a stabilized voltage source (3) is assigned to the LC oscillator (4), which supplies the LC oscillator (4) with a stabilized voltage. This in particular is the case if the LC oscillator (4) is integrated together with other circuit components in a semiconductor and heavy noise or strong disturbances occur on supply voltage lines (1, 2). Advantageously, the stabilized voltage source (3) is formed by an operational amplifier (6), after which a driver transistor (5) is positioned, whereby the operational amplifier is subjected to a reference voltage (7).
    Type: Grant
    Filed: March 4, 2003
    Date of Patent: March 6, 2007
    Assignee: Infineon Technologies AG
    Inventor: Christoph Sandner
  • Publication number: 20070018717
    Abstract: A phase-modulated signal (1) is divided into an in-phase component and a quadrature-phase component. The in-phase component is supplied to a first one-bit analogue/digital converter (25) and the quadrature-phase component is supplied to a second one-bit analogue/digital converter (26), output signals (8; 9) of the one-bit analogue/digital converters (26; 27) being evaluated for determining data modulated onto the phase-modulated signal (1). The one-bit analogue/digital converters may be constructed as simple comparators (26; 27).
    Type: Application
    Filed: September 17, 2004
    Publication date: January 25, 2007
    Applicant: Infineon Technologies AG
    Inventors: Martin Friedrich, Christian Grewing, Giuseppe Puma, Christoph Sandner, Andreas Wiesbauer, Kay Winterberg, Stefan Waasen
  • Publication number: 20060120435
    Abstract: A fast frequency-hopping transceiver comprises a RF-unit arranged on a first chip, a base-band unit on a second chip, a bidirectional operable data and control interface arranged between said first and said second chip having at least one data line for data communication, at least one control line for controlling the data communication and at least one clock line for providing a clock signal, memory means implemented within said RF-unit containing all the required chip settings which are specific to a certain frequency of received and/or transmitted data being part of the intended hopping sequence. The transceiver also includes control means for programming said memory means during an initialization phase during a set-up of a communication link of said data communication.
    Type: Application
    Filed: December 5, 2005
    Publication date: June 8, 2006
    Inventors: Manfred Punzenberger, Stefano Marsili, Andreas Wiesbauer, Christoph Sandner, Yossi Erlich
  • Publication number: 20060062277
    Abstract: Amplifier for an ultra-wideband (UWB) signal receiver having a signal input (15) for receiving an ultra-wideband signal which is sent by a transmitter (1) and which is transmitted in a sequence of transmission channels (Ki) (which each have a particular frequency bandwidth) which has been agreed between the transmitter (1) and the receiver (4); a transistor (18) whose control connection is connected to the signal input (15); a resonant circuit (26, 30, 31) which is connected to the transistor (18) and whose resonant frequency can be set for the purpose of selecting the transmission channel (Ki) in line with the agreed sequence of transmission channels; and having a signal output (29) for outputting the amplified ultra-wideband signal, the signal output being tapped off between the transistor (18) and the resonant circuit.
    Type: Application
    Filed: April 29, 2005
    Publication date: March 23, 2006
    Applicant: Infineon Technologies AG
    Inventors: Martin Friedrich, Christian Grewing, Giuseppe Li Puma, Christoph Sandner, Andreas Wiesbauer, Kay Winterberg, Stefan Waasen
  • Publication number: 20050277389
    Abstract: Circuit arrangement for a wideband mixer (1, 101, 201) with a multiplicative mixing stage (2) which exhibits a carrier frequency input (3, 4) for coupling in a differential carrier frequency signal (LOP, LON), a mixing stage input (5, 6) for coupling in a predistorted differential input signal (LFPD, LFND), and an output (9, 10) for coupling out a differential output signal (OUTP, OUTN) which is generated from the differential carrier frequency signal (LOP, LON) and the predistorted differential input signal (LFPD, LFND) by multiplicative mixing, the predistorted differential input signal (LFPD, LFND) being generated from a differential input signal (LFP, LFN) by means of a quadratic predistortion and a linear predistortion.
    Type: Application
    Filed: April 21, 2005
    Publication date: December 15, 2005
    Applicant: Infineon Technologies AG
    Inventors: Martin Friedrich, Christian Grewing, Giuseppe Li Puma, Christoph Sandner, Andreas Wiesbauer, Kay Winterberg, Stefan Van Waasen
  • Patent number: 6970046
    Abstract: A digital phase-locked loop with a digitally controlled oscillator is disclosed. The phase difference between a reference phase and a phase derived from the output phase of the oscillator is determined by a phase detector device and converted into a corresponding digital set value. The digital set value from the phase detector device is fed through a digital filter, to the digitally controlled oscillator, for the corresponding setting of the output phase thereof. By means of the above architecture any digital loop filter may be used.
    Type: Grant
    Filed: May 8, 2001
    Date of Patent: November 29, 2005
    Assignee: Infineon Technologies AG
    Inventors: Nicola Da Dalt, Christoph Sandner
  • Publication number: 20050255822
    Abstract: Frequency pattern generator (1, 101, 201) for generating frequency pulses, said generator having a first local oscillator unit (2-1, 121, 221) for generating a first radio frequency carrier frequency signal (LO1), at least one second local oscillator unit (2-2, . . . 2-N, 122, 222) for generating at least one second radio frequency carrier frequency signal (LO2), a switching device (3, 103, 203) for passing on one of the radio frequency carrier frequency signals (LO1, LO2) or a zero signal (DC) in a manner dependent on a control signal (CTR), and a mixing stage (9, 109, 209, 212, 309) for mixing the signal (LO) that has been passed on by the switching device (3, 103, 203) with a mixing frequency signal (LF) to form a pulsed output signal (RFOUT), the pulsed output signal (RFOUT) having frequency pulses at a respective frequency (f1, . . . f8) and length (Tp) in a manner dependent on the control signal (CTR).
    Type: Application
    Filed: April 25, 2005
    Publication date: November 17, 2005
    Applicant: Infineon Technologies AG
    Inventors: Martin Friedrich, Christian Grewing, Giuseppe Li Puma, Christoph Sandner, Andreas Wiesbauer, Kay Winterberg, Stefan Van Waasen
  • Publication number: 20050248407
    Abstract: A traveling wave amplifier comprises a first normally off MOS transistor having a drain, source and gate terminal. The drain terminal is connected to a node of a drain line, which is connected to a first supply voltage potential via a connecting resistor. The gate terminal is connected to a node of a gate line, onto which an input signal is coupled. The source terminal is coupled to a second supply voltage potential via a first resistor. The traveling wave amplifier also comprises at least one second normally off MOS transistor. In addition, the traveling wave amplifier further comprises a normally off bias MOS transistor. The normally off bias MOS transistor forms a current mirror with at least one of the second normally off MOS transistors. An output signal of the traveling wave amplifier is tapped off on the drain line.
    Type: Application
    Filed: April 29, 2005
    Publication date: November 10, 2005
    Applicant: Infineon Technologies AG
    Inventors: Martin Friedrich, Christian Grewing, Giuseppe Li Puma, Christoph Sandner, Andreas Wiesbauer, Kay Winterberg, Stefan Van Waasen
  • Publication number: 20050141411
    Abstract: A method and an arrangement for processing a received signal which comprises phase-shift modulated or amplitude-quadrature modulated part-signals which are transmitted in a plurality of different frequency bands, wherein the received signal is processed in a plurality of stages in succession, by multiplying all the input signals to each of the stages by two mutually orthogonal signals in each case to form two intermediate signals in each case, wherein the intermediate signals from one stage in each case act as the input signals to whichever is the succeeding stage in the particular case and the received signal acts as the input signal to the first stage, and wherein an in-phase and/or an quadrature component of the individual part-signals in the different frequency bands are determined from the intermediate signals from the last stage. Parallel, simultaneous reception of a plurality of frequency bands can be implemented relatively easily in this way.
    Type: Application
    Filed: December 20, 2004
    Publication date: June 30, 2005
    Inventors: Martin Friedrich, Christian Grewing, Giuseppe Puma, Christoph Sandner, Andreas Wiesbauer, Kay Winterberg, Stefan Waasen
  • Publication number: 20050077969
    Abstract: A digital phase-locked loop with a digitally controlled oscillator is disclosed. The phase difference between a reference phase and a phase derived from the output phase of the oscillator is determined by a phase detector device and converted into a corresponding digital set value. The digital set value from the phase detector device is fed through a digital filter, to the digitally controlled oscillator, for the corresponding setting of the output phase thereof. By means of the above architecture any digital loop filter may be used.
    Type: Application
    Filed: May 8, 2001
    Publication date: April 14, 2005
    Inventors: Nicola Lalt, Christoph Sandner