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公开(公告)号：US20220128688A1
公开(公告)日：2022-04-28
申请号：US17437918
申请日：2020-03-26
Applicant: ams Sensors Singapore Pte. Ltd.
Inventor： Jens Geiger , Laurent Nevou , Gregor Schnitzler , Jean-Francois Seurin , Karl Ilzer
Abstract: An optical sensor module uses polarized light such that, in some instances, crosstalk effects caused by light reflected from a cover glass or from a thin smudge layer on the cover glass can be eliminated, or at least reduced, by directing light of a first polarization through the cover glass toward a target and selectively detecting, in the module, light of a second polarization that is orthogonal to the first polarization.
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Patent Agency Ranking
公开(公告)号：US20220035478A1
公开(公告)日：2022-02-03
申请号：US17311511
申请日：2019-12-09
Applicant: ams Sensors Singapore Pte. Ltd.
Inventor： Laurent Nevou , Jens Geiger
Abstract: An apparatus, e.g. a proximity sensor module (10), for optical distance sensing includes a target surface (25) having a non-uniform design including a high-reflectivity region and a low-reflectivity region for light of a particular wavelength. The position of the target surface (25) is displaceable within the apparatus. The apparatus includes a light source (12) operable to emit light at the particular wavelength toward the target surface (25), and a photodetector (14) operable to sense at least some of the light emitted by the light source and subsequently reflected by the target surface (25). A processor is operable to correlate an output from the photodetector (14) with a distance to the target surface (25). A wall (22) may separate the light source (12) and photodetector (14) from one another, which can help reduce internal optical crosstalk. The light source (12) and photodetector (14) are mounted and electrically coupled to a substrate (16) that, in turn, can be mounted and electrically coupled to a printed circuit board (PCB) (18) of a host device. The light source (12) and photodetector (14) are surrounded laterally by a spacer or housing wall (20). The target surface (25) may be the backside of a touch interactive display screen (24) in the host device, e.g., a portable computing device such as a smartphone, tablet, wearable device, personal digital assistant (PDA), or personal computer. Circuitry (28) can be implemented, for example, as an integrated circuit chip or other processor and may include software and/or a look-up table stored in memory that allows the circuitry (28) to correlate the measured photodetector signal to a distance. When pressure is provided on the display screen (24) (e.g., by a person pressing her finger on the screen), the display screen is displaced slightly in the direction of the substrate (16) on which the light source (12) and photodetector (14) are mounted. As a result of the displacement, the intensity of light detected by the photodetector (24) changes. The signal measured by the photodetector (24) can be correlated to a distance value. If the distance value is within a specified range (or changes by at least a specified amount), for example, it can trigger some further action in the host device.
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公开(公告)号：US20220066573A1
公开(公告)日：2022-03-03
申请号：US17419948
申请日：2020-01-28
Applicant: ams Sensors Singapore Pte. Ltd.
Inventor： Laurent Nevou , Markus Dantler , Jens Geiger
IPC: G06F3/03 , G06F3/16 , G06F3/0482 , G06F3/0485 , G06F3/0483
Abstract: Techniques are described for use with a wide range of consumer and other electronic devices to facilitate a user's control of such features as volume, as well as song, channel or page selection, depending on the application. A method includes emitting light out of a module, receiving signals from light detectors in the module, wherein the signals represent, at least in part, light reflected by a person's finger or other object passing in front of the light detectors, detecting movement of the person's finger or other object based on the received signals, and controlling a feature of a device in response to the detected movement.
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公开(公告)号：US20200149884A1
公开(公告)日：2020-05-14
申请号：US16622792
申请日：2018-06-14
Applicant: ams Sensors Singapore Pte. Ltd.
Inventor： Laurent Nevou , Jens Geiger , James Eilertsen
Abstract: An optoelectronic device has an asymmetric field overlap and is operable to measure proximity independently of object surface reflectivity. In some instances, the optoelectronic device includes a plurality of light-emitting assemblies and a light-sensitive assembly. In some instances, the optoelectronic devices include a plurality of light-sensitive assemblies and a light-emitting assembly. An asymmetric field overlap is attained in various implementations via various field-of-view axis, field-of-view angle, field-of-illumination axis, field-of-illumination angle, optical element and/or pitch configurations.
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公开(公告)号：US11921956B2
公开(公告)日：2024-03-05
申请号：US17311511
申请日：2019-12-09
Applicant: ams Sensors Singapore Pte. Ltd.
Inventor： Laurent Nevou , Jens Geiger
CPC classification number: G06F3/0421 , G01B11/026 , G01S7/4808 , G01S17/08 , G06F3/0412
Abstract: An apparatus, e.g. a proximity sensor module (10), for optical distance sensing includes a target surface (25) having a non-uniform design including a high-reflectivity region and a low-reflectivity region for light of a particular wavelength. The position of the target surface (25) is displaceable within the apparatus. The apparatus includes a light source (12) operable to emit light at the particular wavelength toward the target surface (25), and a photodetector (14) operable to sense at least some of the light emitted by the light source and subsequently reflected by the target surface (25). A processor is operable to correlate an output from the photodetector (14) with a distance to the target surface (25). A wall (22) may separate the light source (12) and photodetector (14) from one another, which can help reduce internal optical crosstalk. The light source (12) and photodetector (14) are mounted and electrically coupled to a substrate (16) that, in turn, can be mounted and electrically coupled to a printed circuit board (PCB) (18) of a host device. The light source (12) and photodetector (14) are surrounded laterally by a spacer or housing wall (20). The target surface (25) may be the backside of a touch interactive display screen (24) in the host device, e.g., a portable computing device such as a smartphone, tablet, wearable device, personal digital assistant (PDA), or personal computer. Circuitry (28) can be implemented, for example, as an integrated circuit chip or other processor and may include software and/or a look-up table stored in memory that allows the circuitry (28) to correlate the measured photodetector signal to a distance. When pressure is provided on the display screen (24) (e.g., by a person pressing her finger on the screen), the display screen is displaced slightly in the direction of the substrate (16) on which the light source (12) and photodetector (14) are mounted. As a result of the displacement, the intensity of light detected by the photodetector (24) changes. The signal measured by the photodetector (24) can be correlated to a distance value. If the distance value is within a specified range (or changes by at least a specified amount), for example, it can trigger some further action in the host device.
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公开(公告)号：US11537217B2
公开(公告)日：2022-12-27
申请号：US17419948
申请日：2020-01-28
Applicant: ams Sensors Singapore Pte. Ltd.
Inventor： Laurent Nevou , Markus Dantler , Jens Geiger
IPC: G06F3/03 , G06F3/16 , G06F3/0482 , G06F3/0483 , G06F3/0485
Abstract: Techniques are described for use with a wide range of consumer and other electronic devices to facilitate a user's control of such features as volume, as well as song, channel or page selection, depending on the application. A method includes emitting light out of a module, receiving signals from light detectors in the module, wherein the signals represent, at least in part, light reflected by a person's finger or other object passing in front of the light detectors, detecting movement of the person's finger or other object based on the received signals, and controlling a feature of a device in response to the detected movement.
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