Patents by Inventor Clemens Pfeffer
Clemens Pfeffer 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).
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Publication number: 20240137056Abstract: A radio-frequency integrated circuit includes a first radio-frequency channel and a first phase shifter in the first radio-frequency channel for setting a phase of the first radio-frequency channel based on predetermined phase values of a modulation scheme for signals of the first radio-frequency channel. A second phase shifter is provided in the first radio-frequency channel for fine-tuning the phase of the first radio-frequency channel based on fine-tuning information, the second phase shifter having a plurality of passive phase-shifting elements which are each able to be connected into the first radio-frequency channel or able to be disconnected from the first radio-frequency channel. The second phase shifter is configured to change a phase of the first radio-frequency channel by switching a selection of the plurality of passive phase-shifting elements into the first radio-frequency channel in accordance with the fine-tuning information.Type: ApplicationFiled: October 18, 2023Publication date: April 25, 2024Inventors: Clemens PFEFFER, Christoph WAGNER
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Patent number: 11681013Abstract: A radar system and a method for a radar system are described. In accordance with one exemplary embodiment, the method includes generating a local oscillator signal in a first radar chip, generating a frequency-divided signal from the local oscillator signal by means of a frequency divider arranged in the first radar chip, transmitting the frequency-divided signal to a second radar chip, and transmitting the local oscillator signal to the second radar chip. The local oscillator signal received in the second radar chip is fed to an output channel of the second radar chip, which generates an output signal on the basis thereof. The method further includes generating—on the basis of the output signal of the output channel and the frequency-divided signal received by the second radar chip—a signal indicating a phase angle of the output signal relative to the received frequency-divided signal.Type: GrantFiled: May 28, 2020Date of Patent: June 20, 2023Assignee: Infineon Technologies AGInventors: Alexander Melzer, Clemens Pfeffer
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Patent number: 11550028Abstract: The description below relates to a method for a radar sensor. According to one example implementation, the method comprises receiving configuration data and storing the received configuration data in a first radar chip having multiple transmission channels. The configuration data contain multiple parameter sets for a chirp sequence and association information representing an association of a respective chirp of the chirp sequence with one of the multiple parameter sets. The method further comprises receiving a trigger signal in the first radar chip. The trigger signal indicates the beginning of a respective chirp of the chirp sequence. The transmission channels mentioned are repeatedly configured in sync with the trigger signal, wherein for each chirp of the chirp sequence the transmission channels are configured according to the respective association information.Type: GrantFiled: July 15, 2019Date of Patent: January 10, 2023Assignee: Infineon Technologies AGInventors: Alexander Melzer, Bernhard Greslehner-Nimmervoll, Clemens Pfeffer
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Patent number: 11486999Abstract: A radar system is described. In accordance with one example implementation, the radar system comprises a passive coupler arrangement and also a first radar chip, a second radar chip and a third radar chip. The radar chips each comprise at least one external RF contact and also a local oscillator designed to generate an RF oscillator signal at least in a switched-on state. The external RF contacts of the radar chips are coupled via the coupler arrangement in such a way that, in a first operating mode, the RF oscillator signal can be transferred from the first radar chip via the coupler arrangement to the second radar chip and the third radar chip, and that, in a second operating mode, the RF oscillator signal can be transferred from the second radar chip via the coupler arrangement to the third radar chip.Type: GrantFiled: March 21, 2019Date of Patent: November 1, 2022Assignee: Infineon Technologies AGInventors: Farhan Bin Khalid, Andreas Och, Alexander Melzer, Clemens Pfeffer, Andre Roger, Philipp Schmidt
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Patent number: 11156709Abstract: A radar system includes a first radar chip with a first RF contact, a second radar chip with a second RF contact, an RF signal path connecting the first RF contact to the second RF contact, and a local oscillator arranged in the first radar chip and configured to generate an RF oscillator signal, and which is coupled to the first RF contact to transmit the RF oscillator signal to the second radar chip. A feedback circuit arranged in the second radar chip is switchably connected to the second RF contact and is configured to reflect at least part of the RF oscillator signal arriving over the RFRF signal path as an RF feedback signal. A measurement circuit, arranged in the first radar chip, coupled to the first RF contact via a coupler receives the RF feedback signal and is configured to determine a signal that represents a phase shift.Type: GrantFiled: June 13, 2019Date of Patent: October 26, 2021Inventors: Alexander Melzer, Bernhard Gstoettenbauer, Alexander Onic, Clemens Pfeffer, Christian Schmid
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Publication number: 20200386854Abstract: A radar system and a method for a radar system are described. In accordance with one exemplary embodiment, the method includes generating a local oscillator signal in a first radar chip, generating a frequency-divided signal from the local oscillator signal by means of a frequency divider arranged in the first radar chip, transmitting the frequency-divided signal to a second radar chip, and transmitting the local oscillator signal to the second radar chip. The local oscillator signal received in the second radar chip is fed to an output channel of the second radar chip, which generates an output signal on the basis thereof. The method further includes generating—on the basis of the output signal of the output channel and the frequency-divided signal received by the second radar chip—a signal indicating a phase angle of the output signal relative to the received frequency-divided signal.Type: ApplicationFiled: May 28, 2020Publication date: December 10, 2020Applicant: Infineon Technologies AGInventors: Alexander MELZER, Clemens PFEFFER
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Patent number: 10794993Abstract: The present disclosure relates to a concept for calibrating an IQ modulator.Type: GrantFiled: December 31, 2018Date of Patent: October 6, 2020Assignee: Infineon Technologies AGInventors: Herbert Jaeger, Clemens Pfeffer
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Publication number: 20200025870Abstract: The description below relates to a method for a radar sensor. According to one example implementation, the method comprises receiving configuration data and storing the received configuration data in a first radar chip having multiple transmission channels. The configuration data contain multiple parameter sets for a chirp sequence and association information representing an association of a respective chirp of the chirp sequence with one of the multiple parameter sets. The method further comprises receiving a trigger signal in the first radar chip. The trigger signal indicates the beginning of a respective chirp of the chirp sequence. The transmission channels mentioned are repeatedly configured in sync with the trigger signal, wherein for each chirp of the chirp sequence the transmission channels are configured according to the respective association information.Type: ApplicationFiled: July 15, 2019Publication date: January 23, 2020Inventors: Alexander MELZER, Bernhard GRESLEHNER-NIMMERVOLL, Clemens PFEFFER
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Publication number: 20190383929Abstract: A radar system includes a first radar chip with a first RF contact, a second radar chip with a second RF contact, an RF signal path connecting the first RF contact to the second RF contact, and a local oscillator arranged in the first radar chip and configured to generate an RF oscillator signal, and which is coupled to the first RF contact to transmit the RF oscillator signal to the second radar chip. A feedback circuit arranged in the second radar chip is switchably connected to the second RF contact and is configured to reflect at least part of the RF oscillator signal arriving over the RFRF signal path as an RF feedback signal. A measurement circuit, arranged in the first radar chip, coupled to the first RF contact via a coupler receives the RF feedback signal and is configured to determine a signal that represents a phase shift.Type: ApplicationFiled: June 13, 2019Publication date: December 19, 2019Applicant: Infineon Technologies AGInventors: Alexander MELZER, Bernhard GSTOETTENBAUER, Alexander ONIC, Clemens PFEFFER, Christian SCHMID
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Publication number: 20190293784Abstract: A radar system is described. In accordance with one example implementation, the radar system comprises a passive coupler arrangement and also a first radar chip, a second radar chip and a third radar chip. The radar chips each comprise at least one external RF contact and also a local oscillator designed to generate an RF oscillator signal at least in a switched-on state. The external RF contacts of the radar chips are coupled via the coupler arrangement in such a way that, in a first operating mode, the RF oscillator signal can be transferred from the first radar chip via the coupler arrangement to the second radar chip and the third radar chip, and that, in a second operating mode, the RF oscillator signal can be transferred from the second radar chip via the coupler arrangement to the third radar chip.Type: ApplicationFiled: March 21, 2019Publication date: September 26, 2019Inventors: Farhan Bin KHALID, Andreas OCH, Alexander MELZER, Clemens PFEFFER, Andre ROGER, Philipp SCHMIDT
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Publication number: 20190204413Abstract: The present disclosure relates to a concept for calibrating an IQ modulator.Type: ApplicationFiled: December 31, 2018Publication date: July 4, 2019Inventors: Herbert JAEGER, Clemens PFEFFER
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Patent number: 10191143Abstract: The present disclosure relates to a concept for calibrating an IQ modulator.Type: GrantFiled: June 29, 2016Date of Patent: January 29, 2019Assignee: Infineon Technologies AGInventors: Herbert Jaeger, Clemens Pfeffer
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Publication number: 20170031005Abstract: The present disclosure relates to a concept for calibrating an IQ modulator.Type: ApplicationFiled: June 29, 2016Publication date: February 2, 2017Inventors: Herbert JAEGER, Clemens Pfeffer
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Patent number: 9507014Abstract: A method is described for detecting a rotating wheel of a vehicle that is travelling on a roadway in a travel direction, the wheels of which are at least partially exposed laterally, the method comprising: emitting an electromagnetic measurement beam having a known temporal progression of its frequency onto a first section above the roadway in a direction in a slant with respect to the vertical and normally or at a slant with respect to the travel direction; receiving a reflected measurement beam and recording the temporal progression of its frequencies, relative to the known progression, as a reception frequency mixture progression; and detecting a frequency band, which is continuously inclining or declining over a period of time, in the reception frequency mixture progression as a wheel. A device for conducting the method is also described.Type: GrantFiled: June 19, 2012Date of Patent: November 29, 2016Assignee: Kapsch TrafficCom AGInventors: Andreas Stelzer, Markus Pichler, Clemens Pfeffer, Oliver Nagy, Werner Scheiblhofer, Reinhard Feger
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Publication number: 20140218227Abstract: A method is described for detecting a rotating wheel of a vehicle that is travelling on a roadway in a travel direction, the wheels of which are at least partially exposed laterally, the method comprising: emitting an electromagnetic measurement beam having a known temporal progression of its frequency onto a first section above the roadway in a direction in a slant with respect to the vertical and normally or at a slant with respect to the travel direction; receiving a reflected measurement beam and recording the temporal progression of its frequencies, relative to the known progression, as a reception frequency mixture progression; and detecting a frequency band, which is continuously inclining or declining over a period of time, in the reception frequency mixture progression as a wheel. A device for conducting the method is also described.Type: ApplicationFiled: June 19, 2012Publication date: August 7, 2014Applicant: Kapsch TrafficCom AGInventors: Andreas Stelzen, Markus Pichler, Clemens Pfeffer, Oliver Nagy, Werner Scheiblhofer, Reinhard Feger