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公开(公告)号：EP4002813A1
公开(公告)日：2022-05-25
申请号：EP20207109.8
申请日：2020-11-12
发明人： PLANK, Hannes , DIELACHER, Markus , FLATSCHER, Martin , HEISS, Heinrich Guenther , LOBNIK, Robert , SCHOENLIEB, Armin
摘要： An electronic device (100) is provided. The electronic device (100) includes a display device (110) configured to display an optical image on a front side of the display device (110). Further, the electronic device (100) includes at least one sensor (120) configured to measure electromagnetic radiation received from a scene in front of the front side of the display device (110). The display device (110) includes a first display region (111) using a first display technology and exhibiting a first transmissivity for the electromagnetic radiation. The display device (110) further includes a second display region using a second display technology (112) and exhibiting a second transmissivity for the electromagnetic radiation. The first transmissivity is higher than the second transmissivity. The at least one sensor (120) is arranged on a back side of the display device (110) and faces the first display region (111).
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公开(公告)号：EP4002455A1
公开(公告)日：2022-05-25
申请号：EP20207106.4
申请日：2020-11-12
发明人： PLANK, Hannes , DIELACHER, Markus , FLATSCHER, Martin , HEISS, Heinrich Guenther , LOBNIK, Robert , SCHOENLIEB, Armin
IPC分类号： H01L25/075 , H01L25/16 , H01L33/50 , H01L31/12 , H01S5/183
摘要： 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.
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公开(公告)号：EP3945342A1
公开(公告)日：2022-02-02
申请号：EP20188376.6
申请日：2020-07-29
发明人： PLANK, Hannes , SCHOENLIEB, Armin
IPC分类号： G01S7/4865 , G01S17/10 , G01S17/894
摘要： A method for time-of-flight sensing is provided. For a single exposure of a light capturing element of a time-of-flight sensor, the method includes illuminating a scene at least once with a first modulated light signal and illuminating the scene at least once with a second modulated light signal. Further, the method includes driving the light capturing element at least once based on a first reference signal portion for measuring reflections of the first modulated light signal from the scene. The method additionally includes driving the light capturing element at least once based on a second reference signal portion for measuring reflections of the second modulated light signal from the scene. The first modulated light signal and the second modulated light signal each exhibit a first duty cycle. The first reference signal portion and the second reference signal portion each exhibit a second duty cycle. The first duty cycle is lower than the second duty cycle.
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4.发明公开
公开(公告)号：EP4148459A1
公开(公告)日：2023-03-15
申请号：EP21196466.3
申请日：2021-09-14
IPC分类号： G01S7/4863 , G01S7/487 , G01S7/497 , G01S17/10 , G01S17/42 , G01S17/894 , H01L27/146
摘要： A Time-of-Flight (ToF) sensor is provided. The ToF sensor includes a plurality of photo-sensitive sensor pixels each comprising at least two charge storages and a drain terminal. Further, the ToF sensor includes a common charge storage coupled to the respective drain terminal of at least a first subset of the plurality of photo-sensitive sensor pixels. For at least one of a plurality of first ToF measurements, the photo-sensitive sensor pixels of at least the first subset are configured to, via the respective drain terminal, drain part of charge carriers generated in the respective photo-sensitive sensor pixel during the at least one of the plurality of first ToF measurements by incident light caused by one or more object outside a target measurement range of the ToF sensor. Further, for the at least one of the plurality of first ToF measurements, the photo-sensitive sensor pixels of at least the first subset are configured to selectively store another part of the charge carriers in the at least two charge storages of the respective photo-sensitive sensor pixel. The common charge storage is configured to accumulate electrical energy conveyed by currents output by the coupled drain terminals and output first data indicative of the accumulated electrical energy.
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公开(公告)号：EP4057614A1
公开(公告)日：2022-09-14
申请号：EP21162277.4
申请日：2021-03-12
IPC分类号： H04N5/225 , H04N5/3745 , H04N5/355
摘要： Examples relate to a method for generating a gray-scale image using an imaging system and to a corresponding imaging system. The imaging system comprises an illumination element (10) for emitting light. The imaging system comprises an imaging sensor (20) comprising at least one photo-sensitive element. Each photo-sensitive element comprises a first element (22) with a modifiable first charge level and a second element (24) with a modifiable second charge level. The imaging system comprises control circuitry (30), configured to, during a first phase control the illumination element to emit light towards a scene (40) and drive the at least one photo-sensitive element such that charge carriers generated in the at least one photo-sensitive element by light received from the scene modify the first charge level. The control circuitry is configured to, during a second phase, control the illumination element to pause emission of the light and drive the at least one photo-sensitive element such that charge carriers generated in the at least one photo-sensitive element by light received modify the second charge level. The control circuitry is configured to generate a gray-scale image of the scene based on the first charge level and the second charge level.
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6.发明公开
公开(公告)号：EP3943977A1
公开(公告)日：2022-01-26
申请号：EP20186760.3
申请日：2020-07-20
发明人： LOBNIK, Robert , PLANK, Hannes , SCHOENLIEB, Armin
IPC分类号： G01S7/497 , G01S7/4865 , G01S7/481 , G01S17/10 , G01S17/894
摘要： A method for characterizing a time-of-flight sensor is provided. The time-of-flight sensor is covered by a cover exhibiting an adjustable transmittance. The method includes selectively adjusting the transmittance of the cover such that the cover is opaque for light emittable by the time-of-flight sensor. Further, the method includes performing at least one time-of-flight measurement with the time-of-flight sensor while the cover is opaque for obtaining measurement data for light reflected from the cover back to the time-of-flight sensor. The method additionally includes determining characterization data based on the measurement data. The characterization data indicate a quantity related to the time-of-flight sensor.
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公开(公告)号：EP3739362A1
公开(公告)日：2020-11-18
申请号：EP20174659.1
申请日：2020-05-14
发明人： PLANK, Hannes
IPC分类号： G01S17/894
摘要： Techniques for obtaining reflectance measurements using a time-of-flight (ToF) measurement device. An example method comprises obtaining a distance measurement, using one or more pixels in a ToF sensor, obtaining an intensity measurement corresponding to the distance measurement, using the one or more pixels, and calculating a reflectance value, based on the distance measurement, the intensity measurement, and a reflectance calibration factor. In some embodiments, the calibration distance is obtained by measuring a reference distance to a calibration surface, using a reference pixel in the ToF sensor, and obtaining the calibration distance from the measured reference distance. In some of these embodiments, the reflectance calibration factor is obtained by obtaining a reference intensity corresponding to the reference distance, using the reference pixel, and calculating the reflectance calibration factor for the one or more pixels as a function of the reference intensity and a viewing angle for the one or more pixels.
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公开(公告)号：EP4181076A1
公开(公告)日：2023-05-17
申请号：EP21207802.6
申请日：2021-11-11
IPC分类号： G06V10/145 , G06V10/147 , G06V10/88 , G06V20/56 , G06V10/75
摘要： An apparatus (100) for detecting a specular surface in a scene (110) is provided. The apparatus (100) includes an illumination device (120) configured to emit polarized light (130) towards the scene (110). The apparatus (100) further includes an imaging system (140) configured to capture a first image of the scene (110) based on light emanating from the scene (110). The light emanating from the scene includes one or more reflection (132, 134) of the emitted polarized light (130). The imaging system (140) is further configured to capture a second image of the scene (110) based on filtered light (136). The apparatus (100) further includes a polarization filter (150) configured to generate the filtered light (136) by filtering the light emanating from the scene (110). The apparatus (100) further includes processing circuitry (160) configured to determine presence of the specular surface in the scene (110) based on a comparison of the first image and the second image.
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公开(公告)号：EP4102256A1
公开(公告)日：2022-12-14
申请号：EP21178955.7
申请日：2021-06-11
发明人： PLANK, Hannes
IPC分类号： G01S17/894 , G01S7/48
摘要： A sensor device is provided. The sensor device includes an image sensor comprising a plurality of photo-sensitive pixels configured to measure light received from a scene. The image sensor is configured to output image data indicative of measurement values of at least part of the plurality of photo-sensitive pixels. Additionally, the sensor device includes processing circuitry configured to determine a histogram based on the image data. The histogram represents a distribution of the measurement values. The processing circuitry is further configured to determine whether an object is present in the scene based on the histogram. In addition, the sensor device includes interface circuitry configured to output presence data indicating whether the object is present in the scene.
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公开(公告)号：EP4001989A1
公开(公告)日：2022-05-25
申请号：EP20207116.3
申请日：2020-11-12
发明人： PLANK, Hannes , DIELACHER, Markus , FLATSCHER, Martin , HEISS, Heinrich Guenther , LOBNIK, Robert , SCHOENLIEB, Armin
IPC分类号： G02B19/00
摘要： An electronic device is provided. The electronic device includes a display device comprising a plurality of light-emitting elements for displaying an optical image on a front side of the display device. Further, the electronic device includes at least one illumination element configured to emit light for illuminating a scene in front of the front side of the display device. The display device is arranged between the at least one illumination element and the scene. The display device comprises a first display region exhibiting a first transmissivity for the light emitted by the at least one illumination element and a second display region exhibiting a second transmissivity for the light emitted by the at least one illumination element. The first transmissivity is higher than the second transmissivity. The electronic device additionally includes at least one optical element arranged between the at least one illumination element and the display device. The at least one optical element is configured to focus the light emitted by the at least one illumination element through the first display region.
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