公开(公告)号：US20140359257A1

公开(公告)日：2014-12-04

申请号：US13906175

申请日：2013-05-30

Applicant: Apple Inc.

Inventor： Christopher P. TANN ,  Marc ALBRECHT ,  Keith COX

IPC: G06F9/44 ,  G06F1/32

CPC classification number: G06F9/4411 ,  G06F1/3203 ,  G06F1/3206 ,  G06F1/3218 ,  G06F1/3231 ,  G06F1/325 ,  G06F1/3265 ,  G06F3/0346 ,  G06F9/4418 ,  G06F2200/1637 ,  G09G5/10 ,  G09G2320/041 ,  G09G2330/026 ,  Y02D10/153

Abstract: This paper describes various embodiments that relate to personal computer systems, and accurate initialization of computer hardware of personal computer systems from a low-power and/or power-off state. According to one embodiment of the invention, a computer system includes a device operative to be powered down to the power-off state dependent upon an amount of user activity on the computer system. The computer system also includes a device controller operative to initialize the device from the power-off state to a power-on state responsive to user activity on the computer system. The device controller has at least one sensor device operative to determining a physical variable related to the device, and operating characteristics of the device are related to the physical variable.

Abstract translation: 本文描述了与个人计算机系统相关的各种实施例，以及从低功率和/或断电状态对个人计算机系统的计算机硬件的准确初始化。 根据本发明的一个实施例，计算机系统包括根据计算机系统上的用户活动量而可操作地关闭到断电状态的设备。 计算机系统还包括设备控制器，用于响应于用户在计算机系统上的活动而将设备从电源关闭状态初始化为电源接通状态。 设备控制器具有至少一个传感器设备，用于确定与设备相关的物理变量，并且设备的操作特性与物理变量相关。

公开(公告)号：US20180350313A1

公开(公告)日：2018-12-06

申请号：US16103852

申请日：2018-08-14

Applicant: Apple Inc.

Inventor： Prasanna NAMBI ,  Jason N. GOMEZ ,  Fenghua ZHENG ,  Paolo SACCHETTO ,  Sandro H. PINTZ ,  Taesung KIM ,  Christopher P. TANN ,  Marc ALBRECHT ,  David W. LUM

IPC: G09G3/36 ,  G06T1/20

CPC classification number: G09G3/3618 ,  G06T1/20 ,  G06T2210/52 ,  G09G3/36 ,  G09G3/3611 ,  G09G3/3648 ,  G09G3/3655 ,  G09G3/3696 ,  G09G2310/08 ,  G09G2320/0626 ,  G09G2330/02 ,  G09G2330/021 ,  G09G2340/0435 ,  G09G2360/18 ,  G09G2370/08

Abstract: The disclosure describes procedures for dynamically employing a variable refresh rate at an LCD display of a consumer electronic device, such as a laptop computer, a tablet computer, a mobile phone, or a music player device. In some configurations, the consumer electronic device can include a host system portion, having one or more processors and a display system portion, having a timing controller, a buffer circuit, a display driver, and a display panel. The display system can receive image data and image control data from a GPU of the host system, evaluate the received image control data to determine a reduced refresh rate (RRR) for employing at the display panel, and then transition to the RRR, whenever practicable, to conserve power. In some scenarios, the transition to the RRR can be a transition from a LRR of 50 hertz or above to a RRR of 40 hertz or below.

公开(公告)号：US20190318696A1

公开(公告)日：2019-10-17

申请号：US16044408

申请日：2018-07-24

Applicant: Apple Inc.

Inventor： Francisco H. IMAI ,  Chi ZHANG ,  Adria FORES HERRANZ ,  Jiaying WU ,  Arthur L. SPENCE ,  Marc ALBRECHT

IPC: G09G3/34 ,  G09G3/20

Abstract: Aspects of the subject technology relate to electronic devices with displays and ambient light sensors. An electronic device modifies the color of images to be displayed based on measured ambient light color. The modification is performed in a perceptually uniform color space and includes a determination of a bleaching effect of reflected ambient light, and a determination of a color correction factor to be applied within the perceptually uniform color space,7 based on the determined bleaching effect. The modification may also include an application of a strength factor that mitigates out-of-gamut colors in color compensated images.

公开(公告)号：US20180374450A1

公开(公告)日：2018-12-27

申请号：US15691687

申请日：2017-08-30

Applicant: Apple Inc.

Inventor： Nachum M. KANOVSKY ,  Marc ALBRECHT ,  Tobias JUNG ,  Xiaokai LI ,  Ameya Y. JOSHI

IPC: G09G5/10 ,  G09G5/393 ,  G09G3/36

CPC classification number: G09G5/10 ,  G09G3/2062 ,  G09G3/3607 ,  G09G5/363 ,  G09G5/393 ,  G09G5/395 ,  G09G2310/08 ,  G09G2320/0233 ,  G09G2320/0242 ,  G09G2320/0252 ,  G09G2320/103 ,  G09G2340/02 ,  G09G2340/16 ,  G09G2360/08 ,  G09G2360/122 ,  G09G2360/16 ,  G09G2360/18

Abstract: Aspects of the subject technology relate to display circuitry including pixel overdrive circuitry. The pixel overdrive circuitry includes a compression engine that compresses a previous display frame, for storage and comparison to a current display frame without compression or decompression of the current display frame. The compression engine compresses the previous frame in such a way that the maximum compression error is always known and can be used to determine whether to perform overdrive operations for the current frame without compressing and decompressing the current display frame. The compression engine selects gradient encoding or decimation encoding for the compression of the previous display frame and can perform successive decimation operations within the gradient encoding operations to help reduce the size of the compressed previous frame while maintaining the quality of the ultimate overdriven current frame.

公开(公告)号：US20170358255A1

公开(公告)日：2017-12-14

申请号：US15438448

申请日：2017-02-21

Applicant: Apple Inc.

Inventor： Chaohao WANG ,  Paolo SACCHETTO ,  Sheng ZHANG ,  Yang LI ,  Myung-Je CHO ,  Marc ALBRECHT

IPC: G09G3/20

CPC classification number: G09G3/2055 ,  G09G3/2022 ,  G09G2320/0247 ,  G09G2320/0666

Abstract: This application relates to performing certain dithering processes to eliminate display artifacts such as flicker, which can be caused by charge accumulation at the display. The dither process can be performed by a display controller that uses a group lookup method for identifying groups of dithering patterns that can be combined to expand a number of color values available to the display. The dither process can also be performed as a temporal process that incorporates groups of dithering patterns into frames and shifts a spatial arrangement of the groups of dithering patterns over a sequence of frames. Additionally, the dither process can incorporate counters that count the number of times a particular spatial arrangement of dithering patterns has been used in a sequence of frames in order that each spatial arrangement of dithering patterns will share an average count with other spatial arrangements over a sequence of frames.

公开(公告)号：US20170047027A1

公开(公告)日：2017-02-16

申请号：US15338297

申请日：2016-10-28

Applicant: Apple Inc.

Inventor： Prasanna NAMBI ,  Jason N. GOMEZ ,  Fenghua ZHENG ,  Paolo SACCHETTO ,  Sandro H. PINTZ ,  Taesung KIM ,  Christopher P. TANN ,  Marc ALBRECHT ,  David W. LUM

IPC: G09G3/36 ,  G06T1/20

CPC classification number: G09G3/3618 ,  G06T1/20 ,  G06T2210/52 ,  G09G3/36 ,  G09G3/3611 ,  G09G3/3648 ,  G09G3/3655 ,  G09G3/3696 ,  G09G2310/08 ,  G09G2320/0626 ,  G09G2330/02 ,  G09G2330/021 ,  G09G2340/0435 ,  G09G2360/18 ,  G09G2370/08

Abstract: The disclosure describes procedures for dynamically employing a variable refresh rate at an LCD display of a consumer electronic device, such as a laptop computer, a tablet computer, a mobile phone, or a music player device. In some configurations, the consumer electronic device can include a host system portion, having one or more processors and a display system portion, having a timing controller, a buffer circuit, a display driver, and a display panel. The display system can receive image data and image control data from a GPU of the host system, evaluate the received image control data to determine a reduced refresh rate (RRR) for employing at the display panel, and then transition to the RRR, whenever practicable, to conserve power. In some scenarios, the transition to the RRR can be a transition from a LRR of 50 hertz or above to a RRR of 40 hertz or below.

Abstract translation: 本公开描述了在诸如膝上型计算机，平板计算机，移动电话或音乐播放器设备的消费电子设备的LCD显示器上动态地采用可变刷新率的过程。 在一些配置中，消费电子设备可以包括具有一个或多个处理器的主机系统部分和具有定时控制器，缓冲电路，显示驱动器和显示面板的显示系统部分。 显示系统可以从主机系统的GPU接收图像数据和图像控制数据，评估所接收的图像控制数据，以确定在显示面板上使用的刷新率降低（RRR），然后在切实可行的情况下转换到RRR ，以节省权力。 在某些情况下，过渡到RRR可以是从50赫兹或更高的LRR到40赫兹或更低的RRR的转换。

公开(公告)号：US20170018219A1

公开(公告)日：2017-01-19

申请号：US14973517

申请日：2015-12-17

Applicant: Apple Inc.

Inventor： Chaohao WANG ,  Paolo SACCHETTO ,  Marc ALBRECHT ,  Christopher P. TANN ,  Shih-Chyuan FAN JIANG ,  Howard H. TANG ,  James E. C. BROWN ,  Zhibing GE

IPC: G09G3/20

CPC classification number: G09G3/2092 ,  G09G2320/0204 ,  G09G2320/0223 ,  G09G2320/0233 ,  G09G2320/0285 ,  G09G2320/0693

Abstract: This application relates to systems, methods, and apparatus for compensating voltage for pixels of a display panel based on the location of the pixels within the display panel. An amount of voltage compensation is assigned to each pixel or a group of pixels within the display panel in accordance with a calibration of the display panel. During operation of the display panel, pixel data is generated for a location of the display panel, and the pixel data is modified according to the amount of voltage compensation corresponding to the location. By modifying the pixel data in this way, spatial variations in voltage across the display panel can be mitigated in order to reduce the occurrence of certain display artifacts at the display panel.

Abstract translation: 本申请涉及用于基于显示面板内的像素的位置来补偿显示面板的像素的电压的系统，方法和装置。 根据显示面板的校准，向显示面板内的每个像素或一组像素分配电压补偿量。 在显示面板的操作期间，为显示面板的位置生成像素数据，并且根据对应于该位置的电压补偿量修改像素数据。 通过以这种方式修改像素数据，可以减轻显示面板上的电压的空间变化，以便减少显示面板上某些显示伪像的发生。