公开(公告)号：US11346947B2

公开(公告)日：2022-05-31

申请号：US16204149

申请日：2018-11-29

Applicant: Infineon Technologies AG

Inventor： Hannes Plank ,  Norbert Druml ,  Theresa Egger ,  Thomas Herndl ,  Christoph Steffan

IPC: G01S17/48 ,  G01S17/88 ,  G01S17/42

Abstract: An apparatus for localizing a first device includes a time of flight circuit configured to emit a first modulated light signal and receive a reflection of the first modulated light signal from the first device. The apparatus further includes a processing circuit configured to determine, based on the first modulated light signal and the reflection, a position of the first device in a first coordinate system associated with the apparatus. The processing circuit is further configured to determine, based on the position of the first device in the first coordinate system, a position of the apparatus in a second coordinate system and an orientation of the apparatus in the second coordinate system. The apparatus further includes a transmit circuit configured to emit a second modulated signal to the first device, wherein the second modulated signal includes data indicating the position of the first device in the second coordinate system.

公开(公告)号：US20220149016A1

公开(公告)日：2022-05-12

申请号：US17524023

申请日：2021-11-11

Applicant: Infineon Technologies AG

Inventor： Hannes Plank ,  Markus Dielacher ,  Martin Flatscher ,  Heinrich Guenther Heiss ,  Robert Lobnik ,  Armin Josef Schoenlieb

IPC: H01L25/075 ,  G01S17/08 ,  G01S7/481 ,  H01S5/42

Abstract: A display device is provided. The display device includes a plurality of first light-emitting elements configured to emit light for displaying an optical image on a front side of the display device. Additionally, the display device includes at least one second light-emitting element configured to emit infrared light for illuminating a scene in front of the front side of the display device.

公开(公告)号：US20220075063A1

公开(公告)日：2022-03-10

申请号：US17466164

申请日：2021-09-03

Applicant: Infineon Technologies AG

Inventor： Armin Josef Schoenlieb ,  Hannes Plank

IPC: G01S17/26 ,  G01S17/894 ,  G01S7/4865

Abstract: A method for time-of-flight sensing of a scene is provided. For at least one pixel position, the method includes performing at least one time-of-flight measurement using a first modulation frequency to obtain at least one first measurement value for the pixel position. Further, the method includes for the at least one pixel position performing at least one time-of-flight measurement using a second modulation frequency to obtain at least one second measurement value for the pixel position. The method additionally includes determining an estimate of a distance value of the pixel position based on the at least one first measurement value and the at least one second measurement value using a mapping function.

公开(公告)号：US20220074856A1

公开(公告)日：2022-03-10

申请号：US17466231

申请日：2021-09-03

Applicant: Infineon Technologies AG

Inventor： Armin Josef Schoenlieb ,  Caterina Nahler ,  Hannes Plank

IPC: G01N21/55 ,  G01S17/36

Abstract: A method for determining a reflectivity value indicating a reflectivity of an object is provided. The method includes performing a Time-of-Flight (ToF) measurement using a ToF sensor. A correlation function of the ToF measurement increases over distance within a measurement range of the ToF sensor such that an output value of the ToF sensor for the ToF measurement is independent of the distance between the ToF sensor and the object. The method further includes determining the reflectivity value based on the output value of the ToF sensor for the ToF measurement.

公开(公告)号：US20210382153A1

公开(公告)日：2021-12-09

申请号：US17339472

申请日：2021-06-04

Applicant: Infineon Technologies AG

Inventor： Markus Dielacher ,  Martin Flatscher ,  Hannes Plank ,  Armin Josef Schoenlieb

IPC: G01S7/497 ,  G01S17/894 ,  G01S7/4865 ,  G01S17/26 ,  G01S7/481

Abstract: A method for characterizing a time-of-flight sensor and/or a cover covering the time-of-flight sensor is provided. The method includes performing at least one coded modulation measurement with the time-of-flight sensor for obtaining measurement data for light reflected from the cover back to the time-of-flight sensor. A measurement range of the time-of-flight sensor is configured to end shortly after the cover for the at least one coded modulation measurement. Further, the method includes determining characterization data based on the measurement data, wherein the characterization data indicate a quantity related to the time-of-flight sensor and/or the cover.

公开(公告)号：US11067675B2

公开(公告)日：2021-07-20

申请号：US15909163

申请日：2018-03-01

Applicant: Infineon Technologies AG

Inventor： Hannes Plank ,  Norbert Druml ,  Armin Schoenlieb

IPC: G01S7/486 ,  G01S17/89 ,  G01S7/4865 ,  G01S17/36 ,  G01S7/4863 ,  G01S7/497 ,  G01S17/894

Abstract: A time of flight imaging apparatus includes a plurality of sensor pixels configured to receive an external light signal modulated with an external modulation frequency. The time of flight imaging apparatus further includes pixel circuitry configured to generate a sensor pixels output signal based on the external light signal and a reference signal having a reference frequency. The sensor pixels output signal has a frequency depending on a difference between the external modulation frequency and the reference frequency. The time of flight imaging apparatus further includes synchronization circuitry configured to adjust the reference frequency of the reference signal based on the sensor pixels output signal.

公开(公告)号：US20200183014A1

公开(公告)日：2020-06-11

申请号：US16707352

申请日：2019-12-09

Applicant: Infineon Technologies AG

Inventor： Hannes Plank

IPC: G01S17/894 ,  H04N5/225 ,  G06T7/33 ,  G06T3/60

Abstract: A tag for time-of-flight (ToF) applications includes: at least three light sources configured to controllably emit light; a light detector configured to receive one or more modulated light signals from a ToF camera system; and a processing circuit configured to determine one or more time periods in which the ToF camera system is sensitive for light reception and control the at least three light sources to sequentially and individually emit light according to a predefined lighting pattern during the one or more time periods. Corresponding apparatuses and methods for determining rotation and/or translation parameters for conversion between different coordinate systems are also provided.

公开(公告)号：US20200182984A1

公开(公告)日：2020-06-11

申请号：US16706099

申请日：2019-12-06

Applicant: Infineon Technologies AG

Inventor： Hannes Plank

IPC: G01S7/4865 ,  G01S17/894

Abstract: Provided is a method for determining depth motion relative to a time-of-flight camera in a scene sensed by the time-of-flight camera. The method includes determining a first auxiliary depth image from a first set of phase images out of a sequence of phase images of the scene. The sequence of phase images is taken by the time-of-flight camera for a single time-of-flight depth measurement. A second auxiliary depth image is determined from a second set of phase images out of the sequence of phase images. The phase images of the second set of phase images are different from the phase images of the first set of phase images. Information about depth motion relative to the time-of-flight camera for at least part of the scene is determined based on a comparison of depth values represented by pixels in the first auxiliary depth image and the second auxiliary depth image.

公开(公告)号：US20180063425A1

公开(公告)日：2018-03-01

申请号：US15254306

申请日：2016-09-01

Applicant: Infineon Technologies AG

Inventor： Hannes Plank ,  Nobert Druml

IPC: H04N5/232 ,  G06T7/00 ,  G06T3/40

CPC classification number: H04N5/23232 ,  G06T3/40 ,  G06T7/0085 ,  G06T7/50

Abstract: A method for generating a high-resolution depth image includes providing at least a first low-resolution raw image. Furthermore, the method includes providing at least one high-resolution raw image. A resolution of the high-resolution raw image is higher than a resolution of the first low-resolution raw image. Furthermore, the method includes generating a low-resolution depth image. Furthermore, the method includes generating the high-resolution depth image based on the low-resolution depth image and the high-resolution raw image.

公开(公告)号：US12176331B2

公开(公告)日：2024-12-24

申请号：US17524286

申请日：2021-11-11

Applicant: Infineon Technologies AG

Inventor： Hannes Plank ,  Markus Dielacher ,  Martin Flatscher ,  Heinrich Guenther Heiss ,  Robert Lobnik ,  Armin Josef Schoenlieb

IPC: H01L25/16

Abstract: An electronic device is provided. The electronic device includes a display device configured to display an optical image on a front side of the display device. Further, the electronic device includes at least one sensor configured to measure electromagnetic radiation received from a scene in front of the front side of the display device. The display device includes a first display region using a first display technology and exhibiting a first transmissivity for the electromagnetic radiation. The display device further includes a second display region using a second display technology and exhibiting a second transmissivity for the electromagnetic radiation. The first transmissivity is higher than the second transmissivity. The at least one sensor is arranged on a back side of the display device and faces the first display region.