公开(公告)号：US20230288252A1

公开(公告)日：2023-09-14

申请号：US18162393

申请日：2023-01-31

Applicant: Apple Inc.

Inventor： Michael D Eaton ,  Anand K Chamakura ,  Dong Zheng

IPC: G01J1/44 ,  G01J1/42 ,  G09G3/20

CPC classification number: G01J1/44 ,  G01J1/4204 ,  G09G3/20 ,  G01J2001/444 ,  G09G2330/06 ,  G09G2360/144 ,  G09G2320/0626

Abstract: An electronic device may have an ambient light sensor for gathering ambient light measurements. The ambient light sensor may include multiple channels for measuring different wavelengths of ambient light. An additional, modified, channel may be formed in the ambient light sensor to measure radio-frequency signals that may interfere with the ambient light measurements due to electromagnetic interference. Alternatively, circuitry separate from the ambient light sensor, such as an antenna, may measure the radio-frequency signals. If the radio-frequency signals exceed a threshold, the ambient light sensor measurements taken in the presence of the radio-frequency signals may be discarded or corrected. If the radio-frequency signals do not exceed a threshold, the ambient light sensor measurements may be kept. Therefore, the ambient light measurements that are kept and relied upon by the electronic device may be free from electromagnetic interference.

公开(公告)号：US11953374B2

公开(公告)日：2024-04-09

申请号：US18162393

申请日：2023-01-31

Applicant: Apple Inc.

Inventor： Michael D Eaton ,  Anand K Chamakura ,  Dong Zheng

IPC: G09G3/20 ,  G01J1/42 ,  G01J1/44

CPC classification number: G01J1/44 ,  G01J1/4204 ,  G09G3/20 ,  G01J2001/444 ,  G09G2320/0626 ,  G09G2330/06 ,  G09G2360/144

Abstract: An electronic device may have an ambient light sensor for gathering ambient light measurements. The ambient light sensor may include multiple channels for measuring different wavelengths of ambient light. An additional, modified, channel may be formed in the ambient light sensor to measure radio-frequency signals that may interfere with the ambient light measurements due to electromagnetic interference. Alternatively, circuitry separate from the ambient light sensor, such as an antenna, may measure the radio-frequency signals. If the radio-frequency signals exceed a threshold, the ambient light sensor measurements taken in the presence of the radio-frequency signals may be discarded or corrected. If the radio-frequency signals do not exceed a threshold, the ambient light sensor measurements may be kept. Therefore, the ambient light measurements that are kept and relied upon by the electronic device may be free from electromagnetic interference.

公开(公告)号：US12288512B1

公开(公告)日：2025-04-29

申请号：US18100858

申请日：2023-01-24

Applicant: Apple Inc.

Inventor： Francesco LaRocca ,  Aditya B Nayak ,  Anand K Chamakura ,  Christopher M Dodson ,  Guocheng Shao ,  Kenneth J Vampola ,  Mahesh B Chappalli ,  Reza Tafteh ,  Serhan O Isikman ,  Steven N Hanna

IPC: G09G3/3208

Abstract: An electronic display may include an ambient light sensor (ALS) located beneath an active area to sense ambient light above the active area. The ALS may have multiple response channels to perform fast sensing integration, which is synchronized with blanking periods of a pixel on the active area. An emission mask and a heat map may be generated for the ALS and used to generate a calibrated heat map for the ALS. The calibrated heat map of the ALS is used with display content to calculate a crosstalk compensation for the ALS.