公开(公告)号：US10670786B2

公开(公告)日：2020-06-02

申请号：US15953281

申请日：2018-04-13

Applicant: Apple Inc.

Inventor： Dong Zheng ,  Ove Lyngnes ,  Prashanth S. Holenarsipur ,  Serhan O. Isikman ,  Tianbo Sun ,  Tingjun Xu ,  Xianwei Zhao ,  Xingxing Cai

IPC: G02B5/28 ,  G02B26/00 ,  G02B27/30 ,  G09G3/20 ,  H01L31/02 ,  H01L31/103 ,  G01J3/51 ,  H01L31/0216

Abstract: An electronic device may be provided with a color ambient light sensor. The color ambient light sensor may be used to measure an ambient light spectrum over a wavelength range of interest. Control circuitry in the electronic device can take actions based on the measured ambient light spectrum such as adjusting the brightness and color cast of content on a display. A display may have a display cover layer. The color ambient light sensor can be mounted under the display cover layer and may receive ambient light through the display cover layer. The color ambient light sensor may have a tunable wavelength filter such as an electrically adjustable Fabry-Perot resonator. A light collimator may be interposed between the display cover layer and the Fabry-Perot resonator to collimate ambient light that is passed to the Fabry-Perot resonator. A light detector measures the light passing through the Fabry-Perot resonator.

公开(公告)号：US10553179B2

公开(公告)日：2020-02-04

申请号：US15699941

申请日：2017-09-08

Applicant: Apple Inc.

Inventor： Prashanth S. Holenarsipur ,  Dong Zheng ,  Serhan O. Isikman

IPC: G09G5/10 ,  G01J1/04 ,  G01J1/42 ,  G01J1/44 ,  H04N5/33

Abstract: An electronic device may be provided with a display mounted in a housing. The display may have an array of pixels that form an active area and may have an inactive area that runs along an edge of the active area. An opaque layer may be formed on an inner surface of a display cover layer in the inactive area of the display or may be formed on another transparent layer in the electronic device. An optical component window may be formed from the opening and may be aligned with an ambient light sensor such as a color ambient light sensor. The color ambient light sensor may have an infrared-blocking filter to block infrared light such as infrared light emitted by an infrared-light-emitting diode in the device. A light diffuser layer, light guide, and other structures may also be included in the ambient light sensor.

公开(公告)号：US20190098748A1

公开(公告)日：2019-03-28

申请号：US15713378

申请日：2017-09-22

Applicant: Apple Inc.

Inventor： Dianbo Guo ,  Dong Zheng

IPC: H05K1/02 ,  H05B37/02 ,  G06F1/16 ,  H05K9/00 ,  G09G3/20 ,  G06F3/044

Abstract: An electronic device may be provided with a display. An opaque layer may be formed on an inner surface of a display cover layer in an inactive area of the display. An optical component window may be formed from the opening and may be aligned with an ambient light sensor such as a color ambient light sensor. The color ambient light sensor may have photodetectors on a light detector integrated circuit. Electrostatic shielding may be incorporated into the color ambient light sensor to prevent perturbations in the output of the color ambient light sensor due to the presence of electrostatic charge in the vicinity of the optical component window. The shielding may include a grounded shield layer on a surface of an ambient light sensor support structure that faces the display cover layer and may include a transparent shield layer overlapping the photodetectors.

公开(公告)号：US20190080668A1

公开(公告)日：2019-03-14

申请号：US15699941

申请日：2017-09-08

Applicant: Apple Inc.

Inventor： Prashanth S. Holenarsipur ,  Dong Zheng ,  Serhan O. Isikman

IPC: G09G5/10 ,  H04N5/33 ,  G01J1/42 ,  G01J1/44 ,  G01J1/04

CPC classification number: G09G5/10 ,  G01J1/0425 ,  G01J1/0437 ,  G01J1/0474 ,  G01J1/0492 ,  G01J1/4204 ,  G01J1/44 ,  G01J2001/448 ,  G01J2003/2806 ,  G09G2310/0259 ,  G09G2320/0626 ,  G09G2360/144 ,  H04N5/33

Abstract: An electronic device may be provided with a display mounted in a housing. The display may have an array of pixels that form an active area and may have an inactive area that runs along an edge of the active area. An opaque layer may be formed on an inner surface of a display cover layer in the inactive area of the display or may be formed on another transparent layer in the electronic device. An optical component window may be formed from the opening and may be aligned with an ambient light sensor such as a color ambient light sensor. The color ambient light sensor may have an infrared-blocking filter to block infrared light such as infrared light emitted by an infrared-light-emitting diode in the device. A light diffuser layer, light guide, and other structures may also be included in the ambient light sensor.

公开(公告)号：US10102176B2

公开(公告)日：2018-10-16

申请号：US14616550

申请日：2015-02-06

Applicant: Apple Inc.

Inventor： Dong Zheng ,  Joseph William Colosimo ,  Venkata Siva Sunil Kumar Reddy Bommu

IPC: H05K7/10 ,  G06F3/00 ,  G06F13/42 ,  G06F13/40

Abstract: Methods and apparatus for enabling rapid transactions over a speed limited bus are disclosed. In one exemplary embodiment of the present disclosure, a host controller and an application specific integrated circuit (ASIC) are connected via an Inter-Integrated Circuit (I2C) Bus that is further adapted to enable a simplified signaling scheme. Unlike traditional I2C bus transactions which are flexible but speed limited, the simplified signaling scheme reduces bus overhead and enables rapid transactions. In an exemplary context, the simplified signaling scheme enables the ASIC to rapidly configure a series of photodiodes with different channel gain parameters so as to, for example, measure heartbeats by visually detecting a pulse within human flesh.

公开(公告)号：US09977484B2

公开(公告)日：2018-05-22

申请号：US15680102

申请日：2017-08-17

Applicant: Apple Inc.

Inventor： Brian R. Land ,  Dong Zheng ,  Venkata Siva Sunil Kumar Reddy Bommu

IPC: G06F1/32 ,  G01J1/44 ,  G01J1/42 ,  G09G5/00 ,  G09G5/10

CPC classification number: G06F1/3265 ,  G01J1/4204 ,  G01J1/44 ,  G06F1/1684 ,  G06F1/3287 ,  G09G5/006 ,  G09G5/10 ,  G09G2320/0626 ,  G09G2330/021 ,  G09G2360/144

Abstract: An ambient light sensor that is operable in high gain mode and low gain mode is provided. The high gain mode may help provide satisfactory sensitivity at low light levels but may generate saturated output levels in bright ambient lighting conditions. Low gain mode may therefore be switched into use when bright ambient lighting conditions are detected. The ambient light sensor may be placed in high gain mode by default. An auto-gain switch controller may detect whether the ambient light reading is saturated during a given period of time. In response to determining that the ambient light reading is saturated for a programmable number of consecutive time periods, the auto-gain switch controller may reset and switch the ambient light sensor to the low gain mode. The gain state may optionally be embedded into the ambient light sensor output.

公开(公告)号：US20170344097A1

公开(公告)日：2017-11-30

申请号：US15680102

申请日：2017-08-17

Applicant: Apple Inc.

Inventor： Brian R. Land ,  Dong Zheng ,  Venkata Siva Sunil Kumar Reddy Bommu

IPC: G06F1/32 ,  G01J1/42 ,  G01J1/44 ,  G09G5/00 ,  G09G5/10

CPC classification number: G06F1/3265 ,  G01J1/4204 ,  G01J1/44 ,  G06F1/1684 ,  G06F1/3287 ,  G09G5/006 ,  G09G5/10 ,  G09G2320/0626 ,  G09G2330/021 ,  G09G2360/144

Abstract: An ambient light sensor that is operable in high gain mode and low gain mode is provided. The high gain mode may help provide satisfactory sensitivity at low light levels but may generate saturated output levels in bright ambient lighting conditions. Low gain mode may therefore be switched into use when bright ambient lighting conditions are detected. The ambient light sensor may be placed in high gain mode by default. An auto-gain switch controller may detect whether the ambient light reading is saturated during a given period of time. In response to determining that the ambient light reading is saturated for a programmable number of consecutive time periods, the auto-gain switch controller may reset and switch the ambient light sensor to the low gain mode. The gain state may optionally be embedded into the ambient light sensor output.

公开(公告)号：US20170068303A1

公开(公告)日：2017-03-09

申请号：US14849147

申请日：2015-09-09

Applicant: Apple Inc.

Inventor： Brian R. Land ,  Dong Zheng ,  Venkata Siva Sunil Kumar Reddy Bommu

IPC: G06F1/32 ,  G09G5/00 ,  G09G5/10 ,  G01J1/42 ,  G01J1/44

CPC classification number: G06F1/3265 ,  G01J1/4204 ,  G01J1/44 ,  G06F1/1684 ,  G06F1/3287 ,  G09G5/006 ,  G09G5/10 ,  G09G2320/0626 ,  G09G2330/021 ,  G09G2360/144

Abstract: An ambient light sensor that is operable in high gain mode and low gain mode is provided. The high gain mode may help provide satisfactory sensitivity at low light levels but may generate saturated output levels in bright ambient lighting conditions. Low gain mode may therefore be switched into use when bright ambient lighting conditions are detected. The ambient light sensor may be placed in high gain mode by default. An auto-gain switch controller may detect whether the ambient light reading is saturated during as given period of time in response to determining that the ambient light reading is saturated for a programmable number of consecutive time periods, the auto-gain switch controller may reset and switch the ambient light sensor to the low gain mode. The gain state may optionally be embedded into the ambient light sensor output.

Abstract translation: 提供可在高增益模式和低增益模式下工作的环境光传感器。 高增益模式可能有助于在较低的光照水平提供令人满意的灵敏度，但在明亮的环境照明条件下可能产生饱和的输出电平。 因此，当检测到明亮的环境照明条件时，可以将低增益模式切换到使用中。 默认情况下，环境光传感器可能处于高增益模式。 自动增益开关控制器可以响应于确定环境光读数在可编程数量的连续时间段内饱和，在给定的时间周期期间环境光读数是否饱和，自动增益开关控制器可以复位， 将环境光传感器切换到低增益模式。 可以将增益状态可选地嵌入到环境光传感器输出中。

公开(公告)号：US20160307542A1

公开(公告)日：2016-10-20

申请号：US15194158

申请日：2016-06-27

Applicant: Apple Inc.

Inventor： Dong Zheng ,  Brian R. Land

IPC: G09G5/10 ,  G06F3/044 ,  G06F3/041 ,  G01J1/32 ,  G01J1/42

CPC classification number: G09G5/10 ,  G01J1/32 ,  G01J1/4204 ,  G06F3/0412 ,  G06F3/044 ,  G09G2320/0626 ,  G09G2360/144

Abstract: An electronic device may have a display with a brightness that is adjusted based on ambient light data from multiple ambient light sensors. Sensors that are shadowed can be ignored. A touch sensor array in the display may have electrodes that overlap ambient light sensors. When a touch sensor signal indicates that an external object is covering one of the ambient light sensors, data from that ambient light sensor can be discarded. The ambient light sensors may include a primary ambient light sensor such as a human-eye-response ambient light sensor and may include an array of secondary ambient light sensors such as non-human-eye-response sensors. The secondary ambient light sensors may be formed on a display layer such as a thin-film-transistor layer and may be formed from thin-film materials. An algorithm may be used to dynamically calibrate non-human-eye-response ambient light sensors to the human-eye-response ambient light sensor.

公开(公告)号：US20160232124A1

公开(公告)日：2016-08-11

申请号：US14616550

申请日：2015-02-06

Applicant: Apple Inc.

Inventor： Dong Zheng ,  Joseph William Colosimo ,  Venkata Siva Sunil Kumar Reddy Bommu

IPC: G06F13/42 ,  G06F13/40

CPC classification number: G06F13/4282 ,  G06F13/4031 ,  G06F13/4054

Abstract: Methods and apparatus for enabling rapid transactions over a speed limited bus are disclosed. In one exemplary embodiment of the present disclosure, a host controller and an application specific integrated circuit (ASIC) are connected via an Inter-Integrated Circuit (I2C) Bus that is further adapted to enable a simplified signaling scheme. Unlike traditional I2C bus transactions which are flexible but speed limited, the simplified signaling scheme reduces bus overhead and enables rapid transactions. In an exemplary context, the simplified signaling scheme enables the ASIC to rapidly configure a series of photodiodes with different channel gain parameters so as to, for example, measure heartbeats by visually detecting a pulse within human flesh.

Abstract translation: 公开了一种用于实现在限速总线上的快速交易的方法和装置。 在本公开的一个示例性实施例中，主机控制器和专用集成电路（ASIC）经由内部集成电路（I2C）总线连接，所述集成电路总线进一步适于实现简化的信令方案。 与传统的I2C总线事务不同，传统的I2C总线事务灵活但速度有限，简化的信令方案可以减少总线开销并实现快速交易。 在示例性上下文中，简化的信令方案使ASIC能够以不同的信道增益参数快速配置一系列光电二极管，以便例如通过目视检测人肉内的脉搏来测量心跳。