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1
US10635153B2
Method, optical sensor arrangement and computer program product for passive optical motion detection
Publication/Patent Number: US10635153B2 Publication Date: 2020-04-28 Application Number: 15/775,331 Filing Date: 2016-11-09 Inventor: Mehrl, David   Assignee: ams AG   IPC: G06F1/3231 Abstract: A method for passive optical motion detection uses an optical sensor arrangement comprising an optical sensor having at least one signal channel. The optical sensor arrangement is initialized for repeated signal acquisition and an initial frame comprising a tuple of sensor data is collected from the at least one signal channel. The initial frame is set as a previous frame. A loop of motion detection is entered and the following steps are repeated. First, a current frame comprising another tuple of sensor data is collected from the at least one signal channel. Then, a motion parameter is computed from a motion metric depending on the current and previous frames. The so computed motion parameter is compared with a threshold value. A motion event parameter is set depending on the comparison of the motion parameter with the threshold value. The current frame is set as previous frame so that the loop can start all over again.
2
US10859433B2
Calibration arrangement, optical sensor arrangement, and method for assembly line in-situ calibration of an optical device comprising an optical sensor
Publication/Patent Number: US10859433B2 Publication Date: 2020-12-08 Application Number: 15/767,971 Filing Date: 2016-10-13 Inventor: Mehrl, David   Assignee: AMS AG   IPC: G01J1/08 Abstract: An assembly line in-situ calibration arrangement, optical sensor arrangement and a method for calibration of an optical sensor arrangement are presented. A calibration arrangement comprises a calibration head comprising at least one calibrated light source located behind an aperture in a housing and being electrically connected to a power terminal. A power source is connected to the power terminal, the power source comprising a switching unit electrically connected to the at least one light source. An interface unit is connected to the switching unit by means of an interface connection, wherein the interface unit is arranged to control the switching unit. A control unit is connected to the interface unit, wherein the control unit is arranged to drive the interface unit such that the at least one light source is switched to emit a calibration pulse sequence to be received by the optical sensor arrangement to be placed with respect of the aperture. The calibration pulse sequence is arranged to initiate a calibration mode of operation of the optical sensor arrangement.
3
US10629576B2
Optical proximity sensor arrangement and method for producing an optical proximity sensor arrangement
Publication/Patent Number: US10629576B2 Publication Date: 2020-04-21 Application Number: 15/442,536 Filing Date: 2017-02-24 Inventor: Mehrl, David   Stoltz, Greg   Assignee: ams AG   IPC: H01L27/15 Abstract: An optical proximity sensor arrangement comprises a semiconductor substrate (100) with a main surface (101). A first integrated circuit (200) comprises at least one light sensitive component (201). The first integrated circuit is arranged on the substrate at or near the main surface. A second integrated circuit (300) comprises at least one light emitting component (301), and is arranged on the substrate at or near the main surface. A light barrier (400) is arranged between the first and second integrated circuits. The light barrier being designed to block light to be emitted by the at least one light emitting component from directly reaching the at least one light sensitive component. A multilayer mask (500) is arranged on or near the first integrated circuit and comprising a stack (501) of a first layer (502) of first elongated light blocking slats (503) and at least one second layer (504) of second elongated light blocking slats (505). The light blocking slats are arranged in the mask to block light, incident on the mask from a first region of incidence (701), and to pass light, incident on the mask from a second region of incidence (702), from reaching the at least one light sensitive component.
4
US2020204853A1
METHOD FOR CONTROLLING A DISPLAY PARAMETER OF A MOBILE DEVICE AND COMPUTER PROGRAM PRODUCT
Publication/Patent Number: US2020204853A1 Publication Date: 2020-06-25 Application Number: 16/611,993 Filing Date: 2018-05-09 Inventor: Mehrl, David   Stoltz, Greg   Assignee: ams International AG   IPC: H04N21/414 Abstract: A method is proposed for controlling a display parameter of a mobile device. The mobile device comprises a display and a first imaging unit. The method comprising the step of positioning and orienting the display with respect to a reference plane located at a reference position, such that the first imaging unit faces towards the reference plane. Then a first image is generated by means of the first imaging unit, wherein the first image depends on ambient light incident on the first imaging unit and emitted from at least one ambient light source. A first light level is calculated from the first image, wherein the first light level is indicative of a first fraction of the incident ambient light which illuminates the reference plane by means of specular reflection of the incident ambient light at the display. Finally, the display parameter is adjusted depending on the first light level.
5
US10677898B2
Optical driver arrangement and method for generating a driver signal
Publication/Patent Number: US10677898B2 Publication Date: 2020-06-09 Application Number: 15/507,241 Filing Date: 2015-08-24 Inventor: Kriebernegg, Josef   Mautner, Christian   Mehrl, David   Glover, Kerry   Assignee: ams AG   IPC: G01S7/484 Abstract: An optical driver arrangement (10) comprises a comparator (11) and a pulse generator (15). The comparator (11) comprises a first input (12) for receiving a sensed output signal (S1) derived from a sensor signal (S2) generated by a light sensor (24), a second input (13) for receiving a reference signal (S3) and a comparator output (14) for providing a comparator signal (S4). The pulse generator (15) comprises a control input (16) coupled to the comparator output (14) and a generator output (22) for providing a driver signal (S5) to a light source (21). The driver signal (S4) comprises a series of at least one pulse and a parameter of the driver signal (S4) is controlled by the comparator signal (S4).
6
US10768044B2
Optical sensor device
Publication/Patent Number: US10768044B2 Publication Date: 2020-09-08 Application Number: 16/306,649 Filing Date: 2017-05-31 Inventor: Mehrl, David   Chesler, Troy   Dierschke, Eugene G.   Assignee: ams International AG   IPC: G01J1/42 Abstract: An optical sensor device comprises a first and a second optical sensor arrangement. In the first optical sensor arrangement at least one optical sensor structure measures the incidence angle of incoming light that is approximately on the main beam axis of a light source. The second optical sensor arrangement comprises at least one optical sensor structure with at least one optical sensor, at least two metal layers and opaque walls optically isolating the optical sensor. An evaluation circuit provides an output signal of the second optical sensor arrangement under the condition that the incidence angle measured by the first optical sensor arrangement lies within a set interval.
7
US10847664B2
Optical package and method of producing an optical package
Publication/Patent Number: US10847664B2 Publication Date: 2020-11-24 Application Number: 15/773,539 Filing Date: 2016-11-04 Inventor: Mehrl, David   Bodner, Thomas   Toschkoff, Gregor   Etschmaier, Harald   Schrank, Franz   Assignee: AMS AG   IPC: H01L31/0232 Abstract: An optical package is proposed comprising a carrier, an optoelectronic component, an aspheric lens, and a reflective layer. The carrier comprises electrical interconnections and the optoelectric component is arranged for emitting and/or detecting electromagnetic radiation in a specified wavelength range. Furthermore, the optoelectric component is mounted on the carrier or integrated into the carrier and electrically connected to the electric interconnections. The aspheric lens has an upper surface, a lateral surface, and a bottom surface and the bottom surface is arranged on or near the optoelectric component. The aspheric lens comprises a material which is at least transparent in the specified wavelength range. The reflective layer comprises a reflective material, wherein the reflective layer at least partly covers the lateral surface of the aspheric lens, and wherein the reflective material is at least partly reflective in the specified wavelength range.
8
EP2908436B1
Optical sensor arrangement for proximity detection
Publication/Patent Number: EP2908436B1 Publication Date: 2020-06-24 Application Number: 14157279.2 Filing Date: 2014-02-28 Inventor: Wang, Yu   Mehrl, David   Stoltz, Greg   Glover, Kerry   Dunn, Tom   Assignee: ams AG   IPC: H03K17/94
9
EP1920294B1
USE OF A CCD CAMERA IN A PROJECTOR PLATFORM FOR SMART SCREEN CAPABILITY AND OTHER ENHANCEMENTS
Publication/Patent Number: EP1920294B1 Publication Date: 2019-05-22 Application Number: 06789325.5 Filing Date: 2006-08-03 Inventor: Mehrl, David J.   Assignee: Texas Instruments Incorporated   IPC: G03B21/00
10
US10423849B2
Arrangement of an aperture and a filter region for a filter sensor device and filter sensor device
Publication/Patent Number: US10423849B2 Publication Date: 2019-09-24 Application Number: 15/586,192 Filing Date: 2017-05-03 Inventor: Mehrl, David   Kelly, George   Assignee: ams AG   IPC: G06K9/20 Abstract: The arrangement comprises a filter region (10) filtering electromagnetic radiation and a shielding component (20) inhibiting propagation of electromagnetic radiation. The filter region comprises a central filter region (11) and a separate peripheral filter region (13). The shielding component comprises an aperture (21). The aperture is arranged above the central filter region. The central filter region and the peripheral filter region are optimized for different angles of incidence (α, β) and provided for measurements by individual sensor regions (18, 19).
11
US10393851B2
Polyhedral sensor arrangement and method for operating a polyhedral sensor arrangement
Publication/Patent Number: US10393851B2 Publication Date: 2019-08-27 Application Number: 15/811,473 Filing Date: 2017-11-13 Inventor: Mehrl, David   Glover, Kerry   Assignee: ams AG   IPC: G01S3/786 Abstract: A sensor arrangement comprises at least a first, a second, and a third light sensor. A three-dimensional framework comprises at least a first, a second, and a third connection means which are connected to the at least first, second, and third light sensor, respectively. The first, the second, and the third connection means are configured to align the at least first, second, and third light sensor along a first, second, and third face of a polyhedron-like volume, respectively, such that the sensor arrangement encloses the polyhedron-like volume. The invention also relates to a method for operating the sensor arrangement.
12
EP3242114B1
ARRANGEMENT OF AN APERTURE AND A FILTER REGION FOR A FILTER SENSOR DEVICE AND FILTER SENSOR DEVICE
Publication/Patent Number: EP3242114B1 Publication Date: 2019-05-01 Application Number: 16174001.4 Filing Date: 2016-06-10 Inventor: Mehrl, David   Kelly, George   Assignee: ams AG   IPC: G01J3/51
13
EP3521782A1
METHOD FOR OPERATING A DIRECTIONAL SENSOR ARRANGEMENT
Publication/Patent Number: EP3521782A1 Publication Date: 2019-08-07 Application Number: 19164131.5 Filing Date: 2014-03-05 Inventor: Mehrl, David   Glover, Kerry   Assignee: ams AG   IPC: G01J1/02 Abstract: A sensor arrangement comprises at least a first, a second, and a third light sensor (1, 2, 3) wherein each light sensor is aligned along a face of a polyhedron-like volume (Vol), respectively, so that the sensor arrangement encloses the polyhedron-like volume (Vol). A method for operating the sensor arrangement comprises collecting from the at least first, second, and third light sensor (1, 2, 3) respective sensor signals depending on a light source to be detected. From the collected sensor signals projections onto the principal axes of a three-dimensional coordinate system are determined and, further, from the determined projections a direction of the light source to be detected with respect to the three-dimensional coordinate system (x, y, z) is determined.
14
US2019154498A1
OPTICAL SENSOR DEVICE
Publication/Patent Number: US2019154498A1 Publication Date: 2019-05-23 Application Number: 16/306,649 Filing Date: 2017-05-31 Inventor: Mehrl, David   Chesler, Troy   Dierschke, Eugene G.   Assignee: ams International AG   IPC: G01J1/02 Abstract: An optical sensor device comprises a first and a second optical sensor arrangement. In the first optical sensor arrangement at least one optical sensor structure measures the incidence angle of incoming light that is approximately on the main beam axis of a light source. The second optical sensor arrangement comprises at least one optical sensor structure with at least one optical sensor, at least two metal layers and opaque walls optically isolating the optical sensor. An evaluation circuit provides an output signal of the second optical sensor arrangement under the condition that the incidence angle measured by the first optical sensor arrangement lies within a set interval.
15
US10393577B2
Light sensor system for correcting or equalizing color signals by removing infrared componet from color signals and method for processing light sensor signals
Publication/Patent Number: US10393577B2 Publication Date: 2019-08-27 Application Number: 14/423,101 Filing Date: 2013-08-21 Inventor: Glover, Kerry   Mehrl, David   Jacobs, Dan   Assignee: ams AG   IPC: G01J1/42 Abstract: Color light sensors are used to sense colored light and a full spectrum light in order to generate at least three color channel signals and a clear channel signal. An infrared component IR is calculated by summing up the color channel signals with individual weighting factors and subtracting a weighted clear channel signal.
16
EP2860612B1
Optical sensor arrangement and method for gesture detection
Publication/Patent Number: EP2860612B1 Publication Date: 2019-04-24 Application Number: 14197739.7 Filing Date: 2013-10-16 Inventor: Glover, Kerry   Mehrl, David   Donnelly, Sean   Archibald, James Lawrence Ii   Assignee: ams AG   IPC: G06F3/03
17
EP2857938B1
Optical sensor arrangement and method for gesture detection
Publication/Patent Number: EP2857938B1 Publication Date: 2019-08-14 Application Number: 13188924.8 Filing Date: 2013-10-16 Inventor: Glover, Kerry   Mehrl, David   Donnelly, Sean   Archibald, James Lawrence Ii   Assignee: ams AG   IPC: G06F3/03
18
US10190905B2
Optical sensor arrangement with optical barrier for passing light emitted by light emitting device and scattered on or above an outer surface of cover
Publication/Patent Number: US10190905B2 Publication Date: 2019-01-29 Application Number: 15/119,113 Filing Date: 2015-02-13 Inventor: Wang, Yu   Mehrl, David   Stoltz, Greg   Glover, Kerry   Dunn, Tom   Assignee: ams AG   IPC: G01J1/02 Abstract: An optical sensor arrangement comprises an optical barrier which is placed between a light-emitting device and a photodetector. Herein the light-emitting device and the photodetector are arranged on a first plane and are covered by a cover. The photodetector exhibits an active zone. The optical barrier exhibits an extent along a first principal axis, which is pointing parallel to the line connecting the centers of the light-emitting device and the photodetector. Herein the extent is greater than a dimension of the active zone. The optical barrier is designed to block light emitted by the light-emitting device that otherwise would be reflected by the cover by means of specular reflection and would reach the photodetector. The optical barrier is designed to pass light emitted by the light-emitting device and scattered on or above an outer surface of the cover.
19
EP3166146B1
OPTICAL PACKAGE AND METHOD OF PRODUCING AN OPTICAL PACKAGE
Publication/Patent Number: EP3166146B1 Publication Date: 2019-04-17 Application Number: 15198468.9 Filing Date: 2015-12-08 Inventor: Mehrl, David   Bodner, Thomas   Toschkoff, Gregor   Etschmaier, Harald   Schrank, Franz   Assignee: ams AG   IPC: H01L25/16 Abstract: An optical package is proposed comprising a carrier (4), an optoelectronic component (2), an aspheric lens (1), and a reflective layer (3). The carrier (4) comprises electrical interconnections (5) and the optoelectric component (2) is arranged for emitting and/or detecting electromagnetic radiation in a specified wavelength range. Furthermore, the optoelectric component (2) is mounted on the carrier (4) or integrated into the carrier (4) and electrically connected to the electric interconnections (5). The aspheric lens (1) has an upper surface (11), a lateral surface (12), and a bottom surface (13) and the bottom surface (13) is arranged on or near the optoelectric component (2). The aspheric lens (1) comprises a material which is at least transparent in the specified wavelength range. The reflective layer (3) comprises a reflective material, wherein the reflective layer at least partly covers the lateral surface (12) of the aspheric lens (1), and wherein the reflective material is at least partly reflective in the specified wavelength range.
20
US2018348841A1
METHOD, OPTICAL SENSOR ARRANGEMENT AND COMPUTER PROGRAM PRODUCT FOR PASSIVE OPTICAL MOTION DETECTION
Publication/Patent Number: US2018348841A1 Publication Date: 2018-12-06 Application Number: 15/775,331 Filing Date: 2016-11-09 Inventor: Mehrl, David   Assignee: ams AG   IPC: G06F1/32 Abstract: A method for passive optical motion detection uses an optical sensor arrangement comprising an optical sensor having at least one signal channel. The optical sensor arrangement is initialized for repeated signal acquisition and an initial frame comprising a tuple of sensor data is collected from the at least one signal channel. The initial frame is set as a previous frame. A loop of motion detection is entered and the following steps are repeated. First, a current frame comprising another tuple of sensor data is collected from the at least one signal channel. Then, a motion parameter is computed from a motion metric depending on the current and previous frames. The so computed motion parameter is compared with a threshold value. A motion event parameter is set depending on the comparison of the motion parameter with the threshold value. The current frame is set as previous frame so that the loop can start all over again.
Total 6 pages