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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
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.
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公开(公告)号：US20230058899A1
公开(公告)日：2023-02-23
申请号：US17758286
申请日：2020-12-30
Applicant: QUALCOMM Incorporated
Inventor： Nan ZHANG , Long HAN , Yongjun XU
Abstract: Aspects of the present disclosure can receive a hardware Vsync signal from a display, generate a hardware timestamp signal based on the hardware Vsync signal, determine an error for a pulse in the hardware timestamp signal, determine whether the error for the pulse is over a threshold, synchronize a software Vsync signal based on the hardware timestamp signal, wherein the pulse of the hardware timestamp signal is ignored in synchronization based on whether the error is above the threshold, and control rendering and transmission of a frame to the display based on the synchronized software Vsync signal.
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公开(公告)号：US20230041607A1
公开(公告)日：2023-02-09
申请号：US17758124
申请日：2019-12-31
Applicant: QUALCOMM Incorporated
Inventor： Nan ZHANG , Ping LI , Yongjun XU
Abstract: The present disclosure relates to methods and apparatus for display processing. For example, disclosed techniques facilitate region of interest tracking for in-motion frames. Aspects of the present disclosure can identify a layer of interest of a plurality of layers associated with a frame. Aspects of the present disclosure can also determine coordinates for a region of interest based on characteristics associated with the identified layer of interest. Further, aspects of the present disclosure can perform display processing on the region of interest of the frame based on the coordinates for the region of interest.
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公开(公告)号：US20220357423A1
公开(公告)日：2022-11-10
申请号：US17302295
申请日：2021-04-29
Applicant: QUALCOMM Incorporated
Inventor： Xinjie YANG , Nan ZHANG , Roberto RIMINI , Danlu ZHANG
Abstract: In some aspects, a radar device may receive a received signal comprising a reflected frequency modulated continuous wave (FMCW) radar signal and interference. The radar device may identify the reflected FMCW radar signal based at least in part on performing a phase based search procedure to facilitate removing the interference from the received signal. The radar device may perform an action based at least in part on a characteristic of the identified reflected FMCW radar signal. Numerous other aspects are described.
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公开(公告)号：US20210319563A1
公开(公告)日：2021-10-14
申请号：US16876961
申请日：2020-05-18
Applicant: QUALCOMM Incorporated
Inventor： Nan ZHANG , Yongjun XU
Abstract: Certain aspects of the present disclosure provide methods and apparatus for generating a mask layer for a display of a computing device. For example, a method includes retrieving, from a non-volatile memory of a computing device, region information indicative of dimensions of a region of a display not having functional pixels and indicative of a position of the region on the display. The method further includes generating a mask layer having a size, shape, and position based on the region information. The method further includes composing an image based on the mask layer and one or more layers, the mask layer preventing display of any portion of the one or more layers that overlap with the mask layer. The method further includes outputting the image on the display.
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Patent Agency Ranking
公开(公告)号：US20250022440A1
公开(公告)日：2025-01-16
申请号：US18714553
申请日：2022-12-15
Applicant: QUALCOMM Incorporated
Inventor： Nan ZHANG , Yongjun XU
IPC: G09G5/391
Abstract: Aspects presented herein relate to methods and devices for display processing including an apparatus, e.g., a DPU. The apparatus may transmit, to a display panel, a first frame including a border filling region with a plurality of first pixels, where each of the plurality of first pixels includes a border filling color. The apparatus may also configure at least one second frame including a valid pixel region with a plurality of second pixels, where the at least one second frame includes second content data and a second pixel resolution. The apparatus may also transmit, to the display panel, the at least one second frame including the valid pixel region with the plurality of second pixels. Further, the apparatus may obtain an indication of a resolution update for the at least one second frame. The apparatus may also adjust the valid pixel region of the at least one second frame.
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公开(公告)号：US20240403257A1
公开(公告)日：2024-12-05
申请号：US18697792
申请日：2021-12-15
Applicant: QUALCOMM Incorporated
Inventor： Nan ZHANG , Zhibing ZHOU , Yongjun XU
Abstract: A method for changing operating frequency in a serial data link includes transmitting first datagrams over the serial data link using a first physical layer interface configured for a first frequency of operation, configuring a second physical layer interface for a second frequency of operation different from the first frequency of operation while the first datagrams are transmitted over the serial data link, transmitting configuration information over the serial data link using the first physical layer interface after the second physical layer interface has been configured for the second frequency of operation, idling the serial data link by terminating transmissions by the first physical layer interface, decoupling the first physical layer interface from the serial data link, coupling the second physical layer interface to the serial data link, and transmitting second datagrams over the serial data link using the second physical layer interface and the second frequency of operation.
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公开(公告)号：US20240381044A1
公开(公告)日：2024-11-14
申请号：US18294133
申请日：2021-10-28
Applicant: QUALCOMM Incorporated
Inventor： Nan ZHANG , Yongjun XU , Weipeng FU
Abstract: Various embodiments provide systems and methods for managing a first earpiece and a second earpiece for presenting an audio stream from a wireless device. Various embodiments may include monitoring a battery level of the first earpiece and a battery level of the second earpiece, determining whether the battery level of the first earpiece meets a threshold, and configuring the wireless device to send a monophonic audio stream to the second earpiece in response to determining that the battery level of the first earpiece meets the threshold.
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公开(公告)号：US20240242690A1
公开(公告)日：2024-07-18
申请号：US18424699
申请日：2024-01-26
Applicant: QUALCOMM Incorporated
Inventor： Nan ZHANG , Long HAN , Yongjun XU
Abstract: Methods and apparatuses are provided for alignment of hardware and software Vsync signals through filtering out delayed timestamp signals in a hardware timestamp signal used to generate the software Vsync. The alignment may occur when a display client is operating in a video mode but not a command mode. A compositor or processing unit may receive a hardware Vsync signal from a display using a video mode, generate a hardware timestamp signal based on the hardware Vsync signal, determine a delay for a pulse in the hardware timestamp signal based on a delay for a set of previous frames, determine whether the delay for the pulse is over a threshold, and control rendering and transmission of a frame to the display based on the delay for the pulse being over the threshold. Thus, accurate Vsync signal synchronization may occur.
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公开(公告)号：US20240015648A1
公开(公告)日：2024-01-11
申请号：US18006514
申请日：2020-09-21
Applicant: QUALCOMM Incorporated
Inventor： Nan ZHANG , Yongjun XU
CPC classification number: H04W52/0216 , H04W76/28 , H04W76/23
Abstract: Certain aspects of the present disclosure provide techniques for enhancing sidelink connected discontinuous reception (C-DRX) modes by allowing non-periodic C-DRX transmission/reception occasions to be assigned.
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