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公开(公告)号:US11170690B2
公开(公告)日:2021-11-09
申请号:US17003730
申请日:2020-08-26
Applicant: Apple Inc.
Inventor: Adria Fores Herranz , Chaohao Wang , Jun Li , Koorosh Aflatooni , Pierre-Yves Emelie , Sheng Zhang , Yingying Tang , Yunhui Hou
Abstract: An electronic device may include an electronic display having multiple pixels to display an image based on processed image data. Each of the pixels may include multiple sub-pixels. The electronic device may also include image processing circuitry to receive input image data, in a first color space, having luminance values for each of the sub-pixels. The circuitry may also map the input image data from the first color space to a second color space and apply a multi-dimensional lookup table, based on the input image data in the second color space, to generate compensated image data. The lookup table may receive the luminance values for each of the sub-pixels and output corrected luminance values compensated for an expected amount of current leakage between the sub-pixels. The circuitry may also inversely map the compensated image data from the second color space to the first color space to generate the processed image data.
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公开(公告)号:US10686510B2
公开(公告)日:2020-06-16
申请号:US16289783
申请日:2019-03-01
Applicant: Apple Inc.
Inventor: Yi Song , Lai King Tee , Jun Li
Abstract: The present invention is a method and system for supporting a beamforming antenna system in a mobile broadband communication network with an improved beam pattern, beam sweep pattern, pilot channel design with feedback and reporting rules, and control signaling design. Specifically, the improved beam pattern includes a method of supporting wireless communications in a wireless network forming at least two spatial beams within a cell segment where the at least two spatial beams are associated with different power levels, and separately, where at least two spatial beams can be moved across the cell segment according to a unique sweep pattern. The pilot channel design improves network bandwidth performance and improves user mobility tracking. Feedback and reporting rules can be established using a particular field designator, CQI, in the preferred embodiment.
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公开(公告)号:US20190268057A1
公开(公告)日:2019-08-29
申请号:US16289783
申请日:2019-03-01
Applicant: Apple Inc.
Inventor: Yi Song , Lai King Tee , Jun Li
IPC: H04B7/06 , H04B7/0408 , H04W52/32 , H04L5/00
Abstract: The present invention is a method and system for supporting a beamforming antenna system in a mobile broadband communication network with an improved beam pattern, beam sweep pattern, pilot channel design with feedback and reporting rules, and control signaling design. Specifically, the improved beam pattern includes a method of supporting wireless communications in a wireless network forming at least two spatial beams within a cell segment where the at least two spatial beams are associated with different power levels, and separately, where at least two spatial beams can be moved across the cell segment according to a unique sweep pattern. The pilot channel design improves network bandwidth performance and improves user mobility tracking. Feedback and reporting rules can be established using a particular field designator, CQI, in the preferred embodiment.
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公开(公告)号:US10263683B2
公开(公告)日:2019-04-16
申请号:US15969108
申请日:2018-05-02
Applicant: Apple Inc.
Inventor: Yi Song , Lai King Tee , Jun Li
Abstract: The present invention is a method and system for supporting a beamforming antenna system in a mobile broadband communication network with an improved beam pattern, beam sweep pattern, pilot channel design with feedback and reporting rules, and control signaling design. Specifically, the improved beam pattern includes a method of supporting wireless communications in a wireless network forming at least two spatial beams within a cell segment where the at least two spatial beams are associated with different power levels, and separately, where at least two spatial beams can be moved across the cell segment according to a unique sweep pattern. The pilot channel design improves network bandwidth performance and improves user mobility tracking. Feedback and reporting rules can be established using a particular field designator, CQI, in the preferred embodiment.
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5.
公开(公告)号:US20190033424A1
公开(公告)日:2019-01-31
申请号:US16136862
申请日:2018-09-20
Applicant: Apple Inc.
Inventor: Lai King Tee , Geng Wu , Jun Li , Yuqiang Tang , Neng Wang , Hua Xu , Jianglei Ma
CPC classification number: G01S5/10 , H04L5/0007 , H04W24/10 , H04W64/00
Abstract: Neighbor cell hearability can be improved by including an additional reference signal that can be detected at a low sensitivity and a low signal-to-noise ratio, by introducing non-unity frequency reuse for the signals used for a time difference of arrival (TDOA) measurement, e.g., orthogonality of signals transmitted from the serving cell sites and the various neighbor cell sites. The new reference signal, called the TDOA-RS, is proposed to improve the hearability of neighbor cells in a cellular network that deploys 3GPP EUTRAN (LTE) system, and the TDOA-RS can be transmitted in any resource blocks (RB) for PDSCH and/or MBSFN subframe, regardless of whether the latter is on a carrier supporting both PMCH and PDSCH or not. Besides the additional TDOA-RS reference signal, an additional synchronization signal (TDOA-sync) may also be included to improve the hearability of neighbor cells.
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6.
公开(公告)号:US10082558B2
公开(公告)日:2018-09-25
申请号:US15681903
申请日:2017-08-21
Applicant: Apple Inc.
Inventor: Lai King Tee , Geng Wu , Jun Li , Yuqiang Tang , Neng Wang , Hua Xu , Jianglei Ma
CPC classification number: G01S5/10 , H04L5/0007 , H04W4/02 , H04W24/10 , H04W64/00
Abstract: Neighbor cell hearability can be improved by including an additional reference signal that can be detected at a low sensitivity and a low signal-to-noise ratio, by introducing non-unity frequency reuse for the signals used for a time difference of arrival (TDOA) measurement, e.g., orthogonality of signals transmitted from the serving cell sites and the various neighbor cell sites. The new reference signal, called the TDOA-RS, is proposed to improve the hearability of neighbor cells in a cellular network that deploys 3GPP EUTRAN (LTE) system, and the TDOA-RS can be transmitted in any resource blocks (RB) for PDSCH and/or MBSFN subframe, regardless of whether the latter is on a carrier supporting both PMCH and PDSCH or not. Besides the additional TDOA-RS reference signal, an additional synchronization signal (TDOA-sync) may also be included to improve the hearability of neighbor cells.
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公开(公告)号:US09913276B2
公开(公告)日:2018-03-06
申请号:US15294979
申请日:2016-10-17
Applicant: Apple Inc.
Inventor: Lai King Tee , Yi Song , Jun Li , Yuqiang Tang , Neng Wang
CPC classification number: H04W72/0453 , H04L5/001 , H04L5/0053 , H04L5/0094 , H04W48/16 , H04W72/0406 , H04W72/042
Abstract: A mobile station receives a downlink control structure in a first carrier, where the downlink control structure indicates that control information for the mobile station is on a second, different carrier. The mobile station decodes the control information in the second carrier, where the control information specifies resource allocation of a wireless link for the mobile station. More specifically, according to some implementations, the control channel in the first carrier specifies the resource allocation for an extended control channel in the second carrier, where the extended control channel specifies the resource allocation for traffic data of a wireless link for the mobile station.
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公开(公告)号:US20170244464A1
公开(公告)日:2017-08-24
申请号:US15590151
申请日:2017-05-09
Applicant: Apple Inc.
Inventor: Yi Song , Lai King Tee , Jun Li
IPC: H04B7/06 , H04L5/00 , H04B7/0408 , H04W52/32
CPC classification number: H04B7/0632 , H04B7/0408 , H04B7/0617 , H04B7/0639 , H04B7/0695 , H04L5/0057 , H04W52/325
Abstract: The present invention is a method and system for supporting a beamforming antenna system in a mobile broadband communication network with an improved beam pattern, beam sweep pattern, pilot channel design with feedback and reporting rules, and control signaling design. Specifically, the improved beam pattern includes a method of supporting wireless communications in a wireless network fornling at least two spatial beams within a cell segment where the at least two spatial beams are associated with different power levels, and separately, where at least two spatial beams can be moved across the cell segment according to a unique sweep pattern. The pilot channel design improves network bandwidth performance and improves user mobility tracking. Feedback and reporting rules can be established using a particular field designator, CQI, in the preferred embodiment.
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9.
公开(公告)号:US09739869B2
公开(公告)日:2017-08-22
申请号:US15241601
申请日:2016-08-19
Applicant: Apple Inc.
Inventor: Lai King Tee , Geng Wu , Jun Li , Yuqiang Tang , Neng Wang , Hua Xu , Jianglei Ma
CPC classification number: G01S5/10 , H04L5/0007 , H04W4/02 , H04W24/10 , H04W64/00
Abstract: Neighbor cell hearability can be improved by including an additional reference signal that can be detected at a low sensitivity and a low signal-to-noise ratio, by introducing non-unity frequency reuse for the signals used for a time difference of arrival (TDOA) measurement, e.g., orthogonality of signals transmitted from the serving cell sites and the various neighbor cell sites. The new reference signal, called the TDOA-RS, is proposed to improve the hearability of neighbor cells in a cellular network that deploys 3GPP EUTRAN (LTE) system, and the TDOA-RS can be transmitted in any resource blocks (RB) for PDSCH and/or MBSFN subframe, regardless of whether the latter is on a carrier supporting both PMCH and PDSCH or not. Besides the additional TDOA-RS reference signal, an additional synchronization signal (TDOA-sync) may also be included to improve the hearability of neighbor cells.
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10.
公开(公告)号:US20160036567A1
公开(公告)日:2016-02-04
申请号:US14883800
申请日:2015-10-15
Applicant: Apple Inc.
Inventor: Jun Li , Lai King Tee
CPC classification number: H04L1/1635 , H04L1/1858 , H04W28/04 , H04W72/0406
Abstract: In general, to provide acknowledgment information by a first wireless device, the first wireless device sends repeated instances of acknowledgment information in respective first and second frame structures, in response to receipt of first information from a second wireless device. In addition, the first wireless device also sends further acknowledgment information in the second frame structure that is responsive to second information received from the second wireless device.
Abstract translation: 通常,为了通过第一无线设备提供确认信息,响应于从第二无线设备接收到第一信息,第一无线设备在相应的第一和第二帧结构中发送确认信息的重复实例。 此外,第一无线设备还在响应于从第二无线设备接收的第二信息的第二帧结构中发送另外的确认信息。
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