-
公开(公告)号：US11727619B2
公开(公告)日：2023-08-15
申请号：US17352080
申请日：2021-06-18
Applicant: Apple Inc.
Inventor： Arthur Y Zhang , Ray L. Chang , Timothy R. Oriol , Ling Su , Gurjeet S. Saund , Guy Cote , Jim C. Chou , Hao Pan , Tobias Eble , Avi Bar-Zeev , Sheng Zhang , Justin A. Hensley , Geoffrey Stahl
CPC classification number: G06T15/005 , G06F3/012 , G06T3/0093 , G06T9/00 , H04W76/10 , H04W88/08
Abstract: A mixed reality system that includes a device and a base station that communicate via a wireless connection The device may include sensors that collect information about the user's environment and about the user. The information collected by the sensors may be transmitted to the base station via the wireless connection. The base station renders frames or slices based at least in part on the sensor information received from the device, encodes the frames or slices, and transmits the compressed frames or slices to the device for decoding and display. The base station may provide more computing power than conventional stand-alone systems, and the wireless connection does not tether the device to the base station as in conventional tethered systems. The system may implement methods and apparatus to maintain a target frame rate through the wireless link and to minimize latency in frame rendering, transmittal, and display.
-
公开(公告)号：US11626047B1
公开(公告)日：2023-04-11
申请号：US17405497
申请日：2021-08-18
Applicant: Apple Inc.
Inventor： Shengchang Cai , Hasan Akyol , Xuebei Yang , Sheng Zhang
Abstract: Embodiments disclosed herein provide systems and methods for testing and compensating for pixel degradation in an electronic display based on current and voltage values sensed in a reference array. An electronic display includes an active array, a reference array, and sensing circuitry. A compensation manager obtains current data values of the reference array from the sensing circuitry. The compensation manager generates a current-voltage curve based on the current data and adjusts the current-voltage curve to compensate for variations in temperature and/or pixel brightness. In this way, the compensation manager may improve performance of the electronic display by, for example, by reducing visible anomalies.
-
公开(公告)号：US11435821B2
公开(公告)日：2022-09-06
申请号：US16928870
申请日：2020-07-14
Applicant: Apple Inc.
Inventor： Lingtao Wang , Sheng Zhang
Abstract: An electronic device that includes a display and an eye tracker configured to collect eye tracking data regarding a gaze of one or more of a user's eyes across the display. The electronic device also includes processing circuitry that is operatively coupled to the display and configured to generate pixel data for frames of content based at least in part on the eye tracking data such that the content is configured to be shown on the display in a dynamically foveated manner. The processing circuitry is also configured to apply a dither pattern to the frames of content independent of the gaze of one or more of the user's eyes.
-
公开(公告)号：US20220101790A1
公开(公告)日：2022-03-31
申请号：US17472322
申请日：2021-09-10
Applicant: Apple Inc.
Inventor： John T. Wetherell , Cheuk Chi Lo , Chun-Yao Huang , Lingtao Wang , Derek Keith Shaeffer , Henry C. Jen , Hasan Akyol , Xuebei Yang , Chung-Lun Edwin Hsu , Patrick Bryce Bennett , Chun-Ming Tang , Yingkan Lin , Sheng Zhang , Chaohao Wang , Runjie Xu , Shingo Hatanaka
IPC: G09G3/3233
Abstract: Systems and methods may reduce or eliminate image artifacts due to a defective pixel of an electronic display. An electronic display may include pixels that respectively include a self-emissive element, pixel drive circuitry that supplies a pixel drive current to drive the self-emissive element, and signal routing circuitry that reduces or eliminates a visual artifact due to a defective pixel among the pixels. The signal routing circuitry may do this by turning off the self-emissive element, supplying image data from the pixel drive circuitry to a first adjacent pixel, or receiving image data from other pixel drive circuitry from the first adjacent pixel or a second adjacent pixel.
-
公开(公告)号：US11183155B2
公开(公告)日：2021-11-23
申请号：US16870197
申请日：2020-05-08
Applicant: Apple Inc.
Inventor： Sheng Zhang , Chaohao Wang , Shilin Zhu
Abstract: Systems and methods for improving perceived image quality with reduced implementation associated cost and/or improved operational efficiency. A display pipeline includes an input buffer that stores input image data corresponding with an image pixel window, in which the input image data has a first bit-depth and includes image data corresponding with an image pixel in the image pixel window. The display pipeline includes bit-depth adjustment circuitry, which includes a neural network that operates based on a set of bit-depth adjustment parameters to process the input image data to determine whether banding greater than a perceivability threshold is expected to result when the image is displayed directly using the input image data with the first bit-depth and to process the image data corresponding with the image pixel to expand the image data from the first bit-depth to a second bit-depth when the banding visual artifact is greater than the perceivability threshold.
-
Patent Agency Ranking
公开(公告)号：US20200272022A1
公开(公告)日：2020-08-27
申请号：US15931430
申请日：2020-05-13
Applicant: Apple Inc.
Inventor： Graham B. Myhre , Giovanni Carbone , Shih-Chyuan Fan Jiang , Sheng Zhang , Chaohao Wang
Abstract: An electronic device such as a head-mounted device may have displays that are viewable by the eyes of a viewer through adjustable lenses. The adjustable lenses may be liquid crystal lenses. A camera and other sensors in the head-mounted device may monitor the eyes of the user and gather other information. Control circuitry in the head-mounted device may control the adjustable lenses based on measured characteristics of the eyes of the user such as interpupillary distance and direction-of-view. The control circuitry may match the distance between the centers of the adjustable lenses to the measured interpupillary distance and may align the lens centers with the measured direction-of-view. The adjustable lenses may have transparent electrodes that are supplied with time-varying control signals by the control circuitry.
-
公开(公告)号：US10706817B2
公开(公告)日：2020-07-07
申请号：US16146910
申请日：2018-09-28
Applicant: Apple Inc.
Inventor： Yingying Tang , Chaohao Wang , Sheng Zhang , Yunhui Hou , Paolo Sacchetto , Koorosh Aflatooni , Gokhan Avkarogullari , Guy Cote , Mahesh B. Chappalli , Peter F. Holland
IPC: G09G5/10 , G09G3/20 , G09G3/3225 , G09G3/36 , G09G3/3208
Abstract: An electronic device is provided. The electronic device includes a display that is configured to show content that includes a plurality of frames. The plurality of frames includes a first frame that is associated with a pre-transition value. The plurality of frames also includes a second frame that is associated with a current frame value that corresponds to a first luminance. Additionally, the electronic device is configured to determine an overdriven current frame value corresponding to a second luminance that is greater than the first luminance. The electronic device is also configured to display the second frame using the overdriven current frame value.
-
公开(公告)号：US10690991B1
公开(公告)日：2020-06-23
申请号：US15683993
申请日：2017-08-23
Applicant: Apple Inc.
Inventor： Graham B. Myhre , Giovanni Carbone , Shih-Chyuan Fan Jiang , Sheng Zhang , Chaohao Wang
Abstract: An electronic device such as a head-mounted device may have displays that are viewable by the eyes of a viewer through adjustable lenses. The adjustable lenses may be liquid crystal lenses. A camera and other sensors in the head-mounted device may monitor the eyes of the user and gather other information. Control circuitry in the head-mounted device may control the adjustable lenses based on measured characteristics of the eyes of the user such as interpupillary distance and direction-of-view. The control circuitry may match the distance between the centers of the adjustable lenses to the measured interpupillary distance and may align the lens centers with the measured direction-of-view. The adjustable lenses may have transparent electrodes that are supplied with time-varying control signals by the control circuitry.
-
公开(公告)号：US10657874B2
公开(公告)日：2020-05-19
申请号：US15967892
申请日：2018-05-01
Applicant: Apple Inc.
Inventor： Yingying Tang , Chaohao Wang , Sheng Zhang , Yunhui Hou , Paolo Sacchetto , Koorosh Aflatooni , Gokhan Avkarogullari , Guy Cote , Mahesh B. Chappalli , Peter F. Holland
IPC: G09G3/20 , G09G5/06 , G09G3/36 , G09G3/3208
Abstract: An electronic device is provided. The electronic device includes a display that is configured to show content that includes a plurality of frames. The plurality of frames includes a first frame that is associated with a pre-transition value. The plurality of frames also includes a second frame that is associated with a current frame value that corresponds to a first luminance. Additionally, the electronic device is configured to determine an overdriven current frame value corresponding to a second luminance that is greater than the first luminance. The electronic device is also configured to display the second frame using the overdriven current frame value.
-
公开(公告)号：US10522084B2
公开(公告)日：2019-12-31
申请号：US15711585
申请日：2017-09-21
Applicant: Apple Inc.
Inventor： Sheng Zhang , Chaohao Wang , Paolo Sacchetto , Paul S. Drzaic , Wei Chen , Wei H. Yao
IPC: G09G3/3241 , G09G3/3233 , G09G3/20
Abstract: A display device may include a display having a plurality of pixels. The display device may also include a replica pixel circuit having a switching device configured to output a first current based on a received voltage, a light-emitting diode (LED) configured to illuminate to a first gray level based on the first current output by the switching device, and current mirror circuitry configured to generate a second current that mirrors the first current. In addition, the replica pixel circuit may include a current source configured to output a reference current based on a voltage value that corresponds to the received voltage, comparator circuitry configured to determine a difference between the second current and the reference current, and voltage adjustment circuitry configured to adjust a source voltage output provided to the plurality of pixels based on the difference.
-
-
-
-
-
-
-
-
-
Search Results
84
records
(took 0.022 seconds)
