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公开(公告)号：US12211466B2
公开(公告)日：2025-01-28
申请号：US18548179
申请日：2021-04-14
Applicant: QUALCOMM Incorporated
Inventor： Nan Zhang , Ike Ikizyan , Xinchao Yang , Zhizhou Chen
Abstract: Methods and apparatus for graphics processing, such as producing a smooth transition between images of different dynamic ranges (e.g., Standard Dynamic Range (SDR) images and High Dynamic Range (HDR) images). An example method generally includes using a high frame rate during a transition period to allow properties of images to incrementally vary. The properties may include brightness (i.e., luminance), color gamut, tone mapping, among others. For example, during the transition period, a subset of HDR images are displayed at a second frame rate (e.g., 120 Hz) higher than a frame rate based on the HDR images (e.g., 30 Hz). Simultaneously, a brightness level (as well as other aspects) of the display panel is adjusted incrementally from an SDR brightness level to an HDR brightness level during the transition time period over the subset of the HDR images.
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公开(公告)号：US12170071B2
公开(公告)日：2024-12-17
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：US12130377B2
公开(公告)日：2024-10-29
申请号：US17302295
申请日：2021-04-29
Applicant: QUALCOMM Incorporated
Inventor： Xinjie Yang , Nan Zhang , Roberto Rimini , Danlu Zhang
CPC classification number: G01S7/352 , G01S13/584 , H04W88/02
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：US11990082B2
公开(公告)日：2024-05-21
申请号：US18005448
申请日：2020-08-17
Applicant: QUALCOMM Incorporated
Inventor： Nan Zhang , Junzhi Zhao , Yongjun Xu
IPC: G09G3/20
CPC classification number: G09G3/2096 , G09G2340/0435 , G09G2360/18 , G09G2370/00
Abstract: The present disclosure provides methods and apparatus for configuring an image data transfer time for sending image data from a processor to a display panel along a display path. One method includes receiving, by the processor from the display panel, a display panel refresh interval indication indicating a display panel refresh interval of the display panel. The display panel refresh interval of the display panel corresponds to a time duration of a display period of the display panel. The display panel is configured to refresh each display period. The image data transfer time is computed based on the display panel refresh interval. One or more components of the display path are configured to support the computed image data transfer time.
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公开(公告)号：US11847995B2
公开(公告)日：2023-12-19
申请号：US17919335
申请日：2020-06-05
Applicant: QUALCOMM Incorporated
Inventor： Ike Ikizyan , Nan Zhang , Daiou Zeng , Xinchao Yang , Yongjun Xu
CPC classification number: G09G5/36 , G06T5/40 , G09G2320/0626 , G09G2320/0666 , G09G2340/0435
Abstract: In general, aspects disclosed herein provide techniques for processing video data. Certain aspects provide a method for processing video data comprising a plurality of frames for display on a display as discussed herein. The method includes determining a sampling rate (N) based on a frame rate used for displaying the video data on the display. The sampling rate N is greater than 1. The method further includes, for every N frames of the plurality of frames, processing one or more statistics associated with a frame determine one or more display settings. The method further includes outputting to the display the corresponding N frames of the plurality of frames using the one or more display settings.
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Patent Agency Ranking
公开(公告)号：US11671202B2
公开(公告)日：2023-06-06
申请号：US17108667
申请日：2020-12-01
Applicant: QUALCOMM incorporated
Inventor： Ahmed Omar Desouky Ali , Brian Clarke Banister , Supratik Bhattacharjee , Udayan Murli Bhawnani , Jittra Jootar , Timothy Paul Pals , Rebecca Wen-Ling Yuan , Arvind Vardarajan Santhanam , Zhibin Dang , Omesh Kumar Handa , Sibasish Das , Chetan Jagdeesh Bharadwaj , Gautham Hariharan , Min Wang , Farrukh Rashid , Nan Zhang , Sumanth Kumar Kota
IPC: H04L1/18 , H04W72/12 , H04L1/1812 , H04W72/1268 , H04L1/1829
CPC classification number: H04L1/1812 , H04L1/1861 , H04W72/1268
Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may adaptively switch between hybrid automatic repeat request (HARQ) monitoring modes to support power savings. In a first HARQ skipping mode, the UE may transmit an uplink message corresponding to a HARQ identifier and may receive a positive acknowledgment (ACK) message in a HARQ monitoring occasion associated with the HARQ identifier. Upon receiving the ACK message, the UE refrains from monitoring a subsequent HARQ monitoring occasion associated with the HARQ identifier while in the first HARQ skipping mode (e.g., an aggressive HARQ skipping mode). The UE may periodically enter a periodic evaluation mode from the first HARQ skipping mode, in which the UE monitors a subsequent HARQ monitoring occasion after receiving an ACK message to check for false ACK messages. If a false ACK message is detected, the UE enters a first HARQ skipping prohibited mode.
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公开(公告)号：US11073599B2
公开(公告)日：2021-07-27
申请号：US16203234
申请日：2018-11-28
Applicant: Qualcomm Incorporated
Inventor： Roberto Rimini , Nan Zhang , Vijay Varadarajan , Brian Clarke Banister
Abstract: An apparatus is disclosed for radar interference mitigation using a pseudorandom offset. The apparatus includes an antenna array and a wireless transceiver. The wireless transceiver is coupled to the antenna array and is configured to transmit, via the antenna array, a radar transmit signal based on at least one pseudorandom offset. The wireless transceiver is also configured to receive, via the antenna array, at least a portion of another radar transmit signal from another apparatus. The wireless transceiver is additionally configured to receive, via the antenna array, a radar receive signal that includes a portion of the radar transmit signal that is reflected by an object. At a given time, a frequency of the radar receive signal is different than a frequency of the radar transmit signal based on the at least one pseudorandom offset.
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公开(公告)号：US11047952B2
公开(公告)日：2021-06-29
申请号：US16234717
申请日：2018-12-28
Applicant: QUALCOMM Incorporated
Inventor： Nan Zhang , Roberto Rimini , Xinjie Yang , Vijay Varadarajan , Bo Wang
Abstract: Apparatus and methods are disclosed for determining, on a small form factor 5G communication device, the range of a target object include receiving, at a receiving antenna of the small form factor communication device, a composite signal where the composite signal includes a target reflection signal and a mutual coupling (MC) leakage signal, generating a composite beat waveform by mixing the composite signal with an original signal, where the composite beat includes target beat and MC leakage beat waveform components, isolating the target beat waveform by subtracting from the composite beat waveform a weighted, k-delayed composite beat waveform, where for a configured k the target beat waveforms are uncorrelated and the MC leakage beat waveforms are correlated, and determining, using the target beat waveform, a range of the target object from the small form factor device.
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公开(公告)号：US20190339358A1
公开(公告)日：2019-11-07
申请号：US16203234
申请日：2018-11-28
Applicant: Qualcomm Incorporated
Inventor： Roberto Rimini , Nan Zhang , Vijay Varadarajan , Brian Clarke Banister
Abstract: An apparatus is disclosed for radar interference mitigation using a pseudorandom offset. The apparatus includes an antenna array and a wireless transceiver. The wireless transceiver is coupled to the antenna array and is configured to transmit, via the antenna array, a radar transmit signal based on at least one pseudorandom offset. The wireless transceiver is also configured to receive, via the antenna array, at least a portion of another radar transmit signal from another apparatus. The wireless transceiver is additionally configured to receive, via the antenna array, a radar receive signal that includes a portion of the radar transmit signal that is reflected by an object. At a given time, a frequency of the radar receive signal is different than a frequency of the radar transmit signal based on the at least one pseudorandom offset.
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20.发明授权公开(公告)号：US12249017B2
公开(公告)日：2025-03-11
申请号：US17794876
申请日：2020-02-21
Applicant: QUALCOMM Incorporated
Inventor： Yongjun Xu , Nan Zhang , Wenkai Yao , Long Han
Abstract: Devices and methods for reducing a DPU transfer time to compensate for a delayed GPU render time. After completion of rendering a second frame that follows a first frame, a frame processor determines whether the first frame is currently transferring to a display panel or has already been transferred to the display panel. At least one clock is used with a first set of clock speeds when the first frame is determined to be currently transferring and used with a second set of clock speeds when the first frame is determined to have already been transferred, the second set of clock speeds being faster than the first set of clock speeds. After completion of the transfer of the first frame, the second frame is transferred based on the set of clock speeds.
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