公开(公告)号：US20220196812A1

公开(公告)日：2022-06-23

申请号：US17600925

申请日：2020-04-02

Applicant: ams International AG

Inventor： Doug Nelson ,  Pradeep Hegde ,  Timothy Cogan

IPC: G01S7/497 ,  G01S17/14 ,  G01S17/36 ,  G01S7/4865 ,  G01S7/487

Abstract: Time of Flight Sensor A method of measuring optical crosstalk in a time of flight sensor, which comprises a substantially transparent cover covering a light emitter and one or more photodetectors. The method comprises emitting a series of pulses of light from the light emitter; and using the one or more photodetectors to obtain a distribution of times at which at least one photodetector of the one or more photodetectors detected photons after each emission of the series of pulses of light. The method further comprises recording one or more parameters of the earliest peak if the distribution comprises two or more separate peaks.

公开(公告)号：US20220236110A1

公开(公告)日：2022-07-28

申请号：US17617722

申请日：2020-07-16

Applicant: AMS INTERNATIONAL AG

Inventor： James Archibald ,  Doug Nelson ,  Timothy Cogan

IPC: G01J3/50 ,  G01J1/42 ,  G09G3/3208

Abstract: The present disclosure describes a method and apparatus that can be used to determine various characteristics of ambient light when an ambient light sensor is located behind a display screen. The strategy of the disclosure relies, at least in part, on spectral decomposition of ambient light measurements into components (e.g., red, green, and blue components of an Organic Light Emitting Diode (“OLED”) display screen and ambient light). Following the spectral decomposition technique, statistical analysis are performed on the measurement data to remove the OLED light components from the measurement. This technique enables determinations such as ambient lux and correlated color temperature independent of the content displayed on the screen.

公开(公告)号：US12163839B2

公开(公告)日：2024-12-10

申请号：US17617722

申请日：2020-07-16

Applicant: AMS INTERNATIONAL AG

Inventor： James Archibald ,  Doug Nelson ,  Timothy Cogan

IPC: G01J3/50 ,  G01J1/42 ,  G09G3/3208

Abstract: The present disclosure describes a method and apparatus that can be used to determine various characteristics of ambient light when an ambient light sensor is located behind a display screen. The strategy of the disclosure relies, at least in part, on spectral decomposition of ambient light measurements into components (e.g., red, green, and blue components of an Organic Light Emitting Diode (“OLED”) display screen and ambient light). Following the spectral decomposition technique, statistical analysis are performed on the measurement data to remove the OLED light components from the measurement. This technique enables determinations such as ambient lux and correlated color temperature independent of the content displayed on the screen.

公开(公告)号：US11588977B2

公开(公告)日：2023-02-21

申请号：US17437258

申请日：2020-03-09

Applicant: ams International AG

Inventor： Doug Nelson ,  George Richard Kelly ,  James Archibald ,  Pradeep Hegde ,  Timothy Cogan

IPC: G09G3/3225 ,  H04N5/235

Abstract: The present disclosure describes a method and apparatus that can be used to adjust for distorted ambient light readings caused by the ambient light sensor being located behind the display screen. The strategy of the disclosure relies, at least in part, on spectral decomposition of ambient light measurements into independent sources (e.g., red, green, and blue display components of an Organic Light Emitting Diode (“OLED”) display screen and ambient light). Following the spectral decomposition technique, a more accurate ambient light measurement can be obtained in some instances. This technique enables determinations such as ambient lux and correlated color temperature independent of the content displayed on the screen.