公开(公告)号：US20240177691A1

公开(公告)日：2024-05-30

申请号：US18433214

申请日：2024-02-05

Applicant: QUALCOMM Incorporated

Inventor： Nan ZHANG ,  Xinchao YANG ,  Yongjun XU

IPC: G09G5/18

CPC classification number: G09G5/18 ,  G09G2340/0435

Abstract: Systems, methods, and non-transitory media are provided for dynamically switching frame rates without changing a display refresh rate. An example method can include receiving, from a display device associated with a computing device, a set of control signals indicating a display refresh rate implemented by the display device; adjusting a frame rate associated with application data from one or more applications executed on the computing device; synchronizing, based on the set of control signals, the adjusted frame rate with two or more display refresh cycles, each display refresh cycle being based on the display refresh rate; providing, to the display device, a first frame at the adjusted frame rate, the first frame being generated based on the application data; and displaying the first frame at the display device implementing the display refresh rate.

公开(公告)号：US20240013336A1

公开(公告)日：2024-01-11

申请号：US18245881

申请日：2020-11-19

Applicant: QUALCOMM Incorporated

Inventor： Bo DU ,  Andrew Evan GRUBER ,  Yongjun XU

IPC: G06T1/20 ,  G06T1/60

CPC classification number: G06T1/20 ,  G06T1/60

Abstract: The present disclosure relates to graphics processing. An apparatus of the present disclosure may determine visibility streams corresponding to a target and a set of bins into which the target is divided. The apparatus may select one of a first rendering mode or a second rendering mode for the target based on the first visibility stream and based on the set of second visibility streams. When the first rendering mode is select, the apparatus may configure each of the set of bins into a first subset associated with a first type of rendering pass or a second subset associated with a second type of rendering pass. The apparatus may then render the target based on the selected one of the first rendering mode or the second rendering mode and, if applicable, based on the first rendering pass type or the second rendering pass type.

公开(公告)号：US20230319715A1

公开(公告)日：2023-10-05

申请号：US18040955

申请日：2020-10-02

Applicant: QUALCOMM Incorporated

Inventor： Nan ZHANG ,  Yongjun XU ,  Long HAN

IPC: H04W52/02 ,  H04W76/28 ,  H04W68/02

CPC classification number: H04W52/0229 ,  H04W76/28 ,  H04W68/02

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first user equipment (UE) may transmit, to a second UE, an indication of a discontinuous reception paging cycle and a wake up signal time offset value. The UE may transmit, to the second UE, a wake up signal based at least in part on the discontinuous reception paging cycle and the wake up signal time offset value. Numerous other aspects are provided.

公开(公告)号：US20230319637A1

公开(公告)日：2023-10-05

申请号：US18041754

申请日：2020-10-06

Applicant: QUALCOMM Incorporated

Inventor： Nan ZHANG ,  Zhiguo LI ,  Yongjun XU

IPC: H04W28/08 ,  H04W28/10

CPC classification number: H04W28/0967 ,  H04W28/10 ,  H04W76/15

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive an indication that dual audio channels are to be established over dual quality of service (QoS) flows. The UE may establish a first audio channel of the dual audio channels over a first QoS flow and a second audio channel of the dual audio channels over a second QoS flow based at least in part on receiving the indication. Numerous other aspects are provided.

公开(公告)号：US20230029431A1

公开(公告)日：2023-01-26

申请号：US17758214

申请日：2020-01-31

Applicant: QUALCOMM Incorporated

Inventor： Yongjun XU ,  Menghao JIA ,  Nan ZHANG ,  Zhizhou CHEN ,  Xinchao YANG ,  Daiou ZENG ,  Zhibing ZHOU

IPC: G09G5/10 ,  G06V40/13

Abstract: Method and apparatus for selecting a gamma curve used by a display driver circuit for converting code words provided by a display processing unit to brightness levels based on an operating mode of the computing device. For example, the display processing unit provides code words to the display driver circuit for driving output at a display. Further, the display driver circuit converts the provided code words to analog signal for driving output at the display based on the selected gamma curve.

公开(公告)号：US20240412711A1

公开(公告)日：2024-12-12

申请号：US18719100

申请日：2022-02-14

Applicant: QUALCOMM Incorporated

Inventor： Nan ZHANG ,  Yongjun XU

IPC: G09G5/36

Abstract: Aspects presented herein relate to methods and devices for display processing including an apparatus, e.g., a DPU. The apparatus may configure at least one mask layer including a set of mask units associated with a set of physical sub-pixel values, the at least one mask layer being configured based on a target display configuration. The apparatus may also store the at least one mask layer to a device storage of a device. Further, the apparatus may retrieve the at least one mask layer from the device storage during a run-time period. The apparatus may also compare the target display configuration to a current display configuration of a display panel. The apparatus may also apply or refrain from applying the at least one mask layer to the display panel during the run-time period based on the comparison of the target display configuration to the current display configuration.

公开(公告)号：US20240386646A1

公开(公告)日：2024-11-21

申请号：US18686859

申请日：2021-10-19

Applicant: QUALCOMM Incorporated

Inventor： Nan ZHANG ,  Mark STERNBERG ,  Yongjun XU

IPC: G06T13/80 ,  G06F1/3234 ,  G06T1/20

Abstract: Aspects presented herein relate to methods and devices for display processing including an apparatus, e.g., a DPU. The apparatus may receive each of a plurality of frames in a scene. The apparatus may also convert a data format for each of the plurality of frames to one or more DSC bit streams for each of the plurality of frames. Further, the apparatus may store the one or more DSC bit streams for each of the plurality of frames in a first memory or a first cache. The apparatus may also read the one or more DSC bit streams for each of the plurality of frames from the first memory or the first cache. The apparatus may also transmit, to a display panel, the one or more DSC bit streams for each of the plurality of frames.

公开(公告)号：US20230326093A1

公开(公告)日：2023-10-12

申请号：US18042453

申请日：2020-10-19

Applicant: QUALCOMM Incorporated

Inventor： Yongjun XU ,  Nan ZHANG ,  Wenkai YAO

IPC: G06T11/00 ,  G06T1/20

CPC classification number: G06T11/00 ,  G06T1/20

Abstract: Certain aspects of the present disclosure provide methods and apparatus for processing a plurality of layers of image data corresponding to a frame configured to be displayed on a display, the plurality of layers comprising a first subset of layers having respective bit-depths less than or equal to a threshold and a second subset of layers having respective bit-depths greater than the threshold. The method includes performing, by a first processor, composition processing of at least one first layer of the first subset of layers based on the at least one first layer having a respective bit-depth less than or equal to the threshold. The method further includes performing, by a second processor, composition processing of at least one second layer of the second subset of layers based on the at least one second layer having a respective bit-depth greater than the threshold.

公开(公告)号：US20230154440A1

公开(公告)日：2023-05-18

申请号：US17917508

申请日：2020-04-08

Applicant: QUALCOMM Incorporated

Inventor： Nan ZHANG ,  Yongjun XU

IPC: G09G5/377

CPC classification number: G09G5/377 ,  G09G2340/12

Abstract: Certain aspects of the present disclosure provide methods and apparatus for generating, in a display panel, a virtual mask layer around a cutout region for a front camera. The front camera may be positioned under the display panel and receive light through the cutout region. The mask layer may hide defects of the cutout region that does not have functional pixels. The disclosed techniques may improve aesthetic appearance of displays having punch-hole cameras with reduced hole sizes and increased production quality conformance rate.

公开(公告)号：US20230093744A1

公开(公告)日：2023-03-23

申请号：US17926036

申请日：2020-07-21

Applicant: QUALCOMM Incorporated

Inventor： Xinchao YANG ,  Nan ZHANG ,  Yongjun XU

IPC: G09G5/36 ,  G09G5/00 ,  G09G5/02

Abstract: This disclosure provides systems, devices, apparatus and methods, including computer programs encoded on storage media, for reducing gamut mapping luminance loss. A gain value of at least one primary color may be reduced in a native color gamut based on an analog technique (e.g., using a DDIC in a display panel) to provide a reduced color gamut that is smaller than the native color gamut. The reduced color gamut may have a same luminance as the native color gamut. One or more colors included in the native color gamut may be mapped via a digital technique (e.g., using a DPU or other processor) to the reduced color gamut. The mapping may be configured to provide a threshold level of color accuracy in the reduced color gamut.