公开(公告)号：US20190386673A1

公开(公告)日：2019-12-19

申请号：US16424984

申请日：2019-05-29

Applicant: Infineon Technologies AG

Inventor： Jochen O. Schrattenecker ,  Peter Bogner ,  Andrea Cristofoli ,  Michael Kropfitsch

IPC: H03M1/84 ,  H03M1/36 ,  H03M1/46 ,  H03M1/10

Abstract: In accordance with an embodiment, a method of monitoring a data converter includes determining a multiplicity of time-associated linearity parameters that describe a linearity of the data converter at a multiplicity of different times, and determining a state of the data converter based on comparing at least one linearity parameter of the multiplicity of time-associated linearity parameters with a comparison parameter.

公开(公告)号：US10284248B2

公开(公告)日：2019-05-07

申请号：US15836022

申请日：2017-12-08

Applicant: Infineon Technologies AG

Inventor： Helmut Kollmann ,  Jochen O. Schrattenecker ,  Florian Starzer

IPC: H04L5/16 ,  H04B1/3822 ,  H01L23/66 ,  H01P5/12 ,  G01S7/03 ,  G01S7/40 ,  H04B17/17 ,  H04W24/02 ,  G01S13/93

Abstract: An RF front-end circuit of an RF transceiver is described herein. In accordance with one exemplary embodiment, the fronted circuit includes a local oscillator (LO) configured to generate an RF transmit signal, an RF output port coupled to the local oscillator, wherein the RF transmit signal is output at the RF output port, and a monitoring circuit receiving an input signal and configured to determine the phase of the input signal or the power of the input signal or both. A directional coupler is coupled to the RF output port and configured to direct a reflected signal incoming at the RF output port as input signal to the monitoring circuit, and a controller is configured to detect, based on the determined phase or power or both, a defect in a signal path operably connected to the RF output port.

公开(公告)号：US11660014B2

公开(公告)日：2023-05-30

申请号：US16849473

申请日：2020-04-15

Applicant: Infineon Technologies AG

Inventor： Jochen O. Schrattenecker ,  Andreas Och ,  Stefan Schuster

IPC: A61B5/0536 ,  A61B5/0507 ,  G01N22/00 ,  G01S13/89

CPC classification number: A61B5/0536 ,  A61B5/0507 ,  G01N22/00 ,  G01S13/89

Abstract: The present disclosure relates to a computed tomography apparatus, comprising: a first semiconductor device with a first radar transceiver IC, a second semiconductor device with a second radar transceiver IC, and at least one third semiconductor device with a third radar transceiver IC, which are arranged at different positions around a tomographical measurement region; a synchronization circuit, which is designed to provide a synchronization signal in order to operate the first, second and third radar transceiver IC as synchronized transmitters and receivers using the synchronization signal; and an evaluation circuit, which is designed to ascertain at least one characteristic of a medium located in the measurement region based on time-of-flight measurements of radar signals received from at least two receivers.

公开(公告)号：US11158944B2

公开(公告)日：2021-10-26

申请号：US16244712

申请日：2019-01-10

Applicant: Infineon Technologies AG

Inventor： Jochen O. Schrattenecker ,  Niels Christoffers ,  Vincenzo Fiore ,  Bernhard Gstoettenbauer ,  Helmut Kollmann ,  Alexander Melzer ,  Alexander Onic ,  Rainer Stuhlberger ,  Mathias Zinnoecker

IPC: H01Q3/36 ,  G01S7/35 ,  G01S7/40 ,  H03L7/06 ,  G01S13/02 ,  G01S13/34 ,  G01S7/03 ,  G01S13/88 ,  G01S13/931 ,  H04B1/16 ,  H04B1/10 ,  G01R25/04

Abstract: A circuit is described herein. In accordance with one embodiment the circuit includes two or more RF channels, wherein each channel includes an input node, a phase shifter and an output node. Each channel is configured to receive an RF oscillator signal at the input node and to provide an RF output signal at the output node. The circuit further includes an RF combiner circuit that is coupled with the outputs of the RF channels and configured to generate a combined signal representing a combination of the RF output signals, and a monitor circuit that includes a mixer and is configured to receive and down-convert the combined signal using an RF reference signal. Thus a mixer output signal is generated that depends on the phases of the RF output signals.

公开(公告)号：US10761186B2

公开(公告)日：2020-09-01

申请号：US15834118

申请日：2017-12-07

Applicant: Infineon Technologies AG

Inventor： Jochen O. Schrattenecker ,  Florian Starzer ,  Oliver Frank ,  Michael Kropfitsch ,  Georg Krebelder ,  Helmut Kollmann ,  Thomas Sailer

IPC: G01S7/40 ,  G01S7/03 ,  G01S7/35 ,  G01S13/931 ,  G01R31/28 ,  H04B17/20 ,  G01S13/00

Abstract: A radar device comprises a test signal generator including a digital harmonic oscillator that generates a digital oscillator signal with a first spectral component; a first digital-to-analog-converter that generates an analog oscillator signal based on the digital oscillator signal. Furthermore, the radar device comprises at least one radar channel receiving the analog oscillator signal during one or more self-tests.

公开(公告)号：US20190383651A1

公开(公告)日：2019-12-19

申请号：US16425005

申请日：2019-05-29

Applicant: Infineon Technologies AG

Inventor： Peter Bogner ,  Andrea Cristofoli ,  Michael Kropfitsch ,  Jochen O. Schrattenecker

IPC: G01D18/00 ,  G06F16/25

Abstract: In accordance with an embodiment, a method for monitoring a data converter configured to convert data using a calibration determined by a calibration data record includes calibrating the data converter in order to determine a corresponding multiplicity of time associated calibration data records at a multiplicity of different times; and determining a state of the data converter based on comparing at least one of the multiplicity of time associated calibration data records with a comparison data record.

公开(公告)号：US11837797B2

公开(公告)日：2023-12-05

申请号：US17412694

申请日：2021-08-26

Applicant: Infineon Technologies AG

Inventor： Jochen O. Schrattenecker ,  Niels Christoffers ,  Vincenzo Fiore ,  Bernhard Gstoettenbauer ,  Helmut Kollmann ,  Alexander Melzer ,  Alexander Onic ,  Rainer Stuhlberger ,  Mathias Zinnoecker

IPC: H01Q3/36 ,  G01S7/35 ,  G01S7/40 ,  H03L7/06 ,  G01S13/02 ,  G01S13/34 ,  G01S7/03 ,  G01S13/88 ,  G01S13/931 ,  H04B1/16 ,  H04B1/10 ,  G01R25/04

CPC classification number: H01Q3/36 ,  G01S7/032 ,  G01S7/35 ,  G01S7/4008 ,  G01S7/4017 ,  G01S7/4026 ,  G01S7/4073 ,  G01S13/02 ,  G01S13/343 ,  G01S13/88 ,  H03L7/06 ,  G01R25/04 ,  G01S7/4069 ,  G01S13/931 ,  G01S2013/0254 ,  H04B1/10 ,  H04B1/109 ,  H04B1/1081 ,  H04B1/1638

Abstract: A circuit includes a radio frequency (RF) channel including an input node and an output node and being configured to receive an RF oscillator signal at the input node and to provide an RF output signal at the output node; a mixer configured to mix an RF reference signal and an RF test signal representative of the RF output signal to generate a mixer output signal; an analog-to-digital converter configured to sample the mixer output signal in order to provide a sequence of sampled values; and a control circuit configured to provide a sequence of phase offsets by phase-shifting at least one of the RF test signal and the RF reference signal using one or more phase shifters, calculate a spectral value from the sequence of sampled values; and calculate estimated phase information indicating a phase of the RF output signal based on the spectral value.

公开(公告)号：US20220113375A1

公开(公告)日：2022-04-14

申请号：US17560366

申请日：2021-12-23

Applicant: Infineon Technologies AG

Inventor： Alexander ONIC ,  Bernhard GSTOETTENBAUER ,  Thomas LANGSCHWERT ,  Jochen O. Schrattenecker ,  Rainer STUHLBERGER

IPC: G01S7/40 ,  G01S7/35 ,  G01R31/28 ,  G01S13/34

Abstract: A method for testing at least one reception path in a radar receiver is provided. The reception path contains a mixer and a downstream signal processing circuit. The method includes injecting a test signal into the radar reception path so that at least a first test tone having a first test tone frequency in a passband of the downstream signal processing circuit and a second test tone having a second test tone frequency outside the passband are present on the radar reception path downstream of the mixer; and determining a characteristic of the radar reception path based on a first characteristic of a baseband signal at the first test tone frequency and a second characteristic of the baseband signal at the second test tone frequency.

公开(公告)号：US10859674B2

公开(公告)日：2020-12-08

申请号：US16014044

申请日：2018-06-21

Applicant: Infineon Technologies AG

Inventor： Bernhard Greslehner-Nimmervoll ,  Georg Krebelder ,  Jochen O. Schrattenecker

IPC: G01S7/40 ,  G01S13/34 ,  G01S13/931 ,  H03L7/18 ,  H03L7/06 ,  H03C3/09 ,  H03L7/193 ,  G01S7/03

Abstract: An apparatus is described that, according to an exemplary embodiment, has an RF oscillator for generating an RF oscillator signal at a first frequency and a frequency divider having a division ratio that is fixed during operation. The frequency divider is supplied with the RF oscillator signal and is configured to provide an oscillator signal at a second frequency. The apparatus further has a monitor circuit, to which the oscillator signal at the second frequency is supplied and which is configured to measure the second frequency and to provide at least one digital value that is dependent on the second frequency of the oscillator signal. The at least one digital value is provided on a test contact.

公开(公告)号：US20180003754A1

公开(公告)日：2018-01-04

申请号：US15634588

申请日：2017-06-27

Applicant: Infineon Technologies AG

Inventor： Jochen O. Schrattenecker ,  Oliver Frank ,  Alexander Kaineder

IPC: G01R29/10 ,  G01R31/302 ,  G01S7/40 ,  G01R1/04 ,  H01Q1/32

Abstract: A test set-up for testing a system-in package with an integrated antenna is described herein. According to one exemplary embodiment, the test set-up includes a carrier with an RF probe arranged thereon and a test socket with resilient electric contacts. The test socket is mounted on the carrier and provides an electric contact to interconnects of the package when it is placed on the test socket. The test socket has an opening which is arranged superjacent to the RF probe.