公开(公告)号：US11126281B2

公开(公告)日：2021-09-21

申请号：US16682857

申请日：2019-11-13

Applicant: Apple Inc.

Inventor： Nicholas C. Lewty ,  Mahdi Nezamabadi ,  Po-Chieh Hung ,  Tze Yong Poh

IPC: G06F3/0354 ,  G06F3/041 ,  G06F3/0488

Abstract: A device such as a computer stylus may have a color sensor. The color sensor may have a plurality of photodetectors each of which measures light for a different respective color channel. The color sensor may also have one or more light-emitting devices. Control circuitry may use the light-emitting devices to illuminate an external object while using the photodetectors to measure reflected light to determine the color of the external object. The electronic device may have a housing with an elongated shaft. The shaft may have a tip and an opposing end. The tip may be configured to emit electromagnetic signals that are detected by a touch sensor in a touch sensitive display. The color sensor may be located at the end opposite the tip, may be located at the tip, or may be optically coupled to the tip using a light guide.

公开(公告)号：US20200225778A1

公开(公告)日：2020-07-16

申请号：US16682857

申请日：2019-11-13

Applicant: Apple Inc.

Inventor： Nicholas C. Lewty ,  Mahdi Nezamabadi ,  Po-Chieh Hung ,  Tze Yong Poh

IPC: G06F3/0354 ,  G06F3/0488 ,  G06F3/041

Abstract: A device such as a computer stylus may have a color sensor. The color sensor may have a plurality of photodetectors each of which measures light for a different respective color channel. The color sensor may also have one or more light-emitting devices. Control circuitry may use the light-emitting devices to illuminate an external object while using the photodetectors to measure reflected light to determine the color of the external object. The electronic device may have a housing with an elongated shaft. The shaft may have a tip and an opposing end. The tip may be configured to emit electromagnetic signals that are detected by a touch sensor in a touch sensitive display. The color sensor may be located at the end opposite the tip, may be located at the tip, or may be optically coupled to the tip using a light guide.

公开(公告)号：US20210357044A1

公开(公告)日：2021-11-18

申请号：US17390641

申请日：2021-07-30

Applicant: Apple Inc.

Inventor： Nicholas C. Lewty ,  Mahdi Nezamabadi ,  Po-Chieh Hung ,  Tze Yong Poh

IPC: G06F3/0354 ,  G06F3/041 ,  G06F3/0488

Abstract: A device such as a computer stylus may have a color sensor. The color sensor may have a plurality of photodetectors each of which measures light for a different respective color channel. The color sensor may also have one or more light-emitting devices. Control circuitry may use the light-emitting devices to illuminate an external object while using the photodetectors to measure reflected light to determine the color of the external object. The electronic device may have a housing with an elongated shaft. The shaft may have a tip and an opposing end. The tip may be configured to emit electromagnetic signals that are detected by a touch sensor in a touch sensitive display. The color sensor may be located at the end opposite the tip, may be located at the tip, or may be optically coupled to the tip using a light guide.