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公开(公告)号：US20150035028A1
公开(公告)日：2015-02-05
申请号：US13959362
申请日：2013-08-05
Applicant: Apple Inc.
Inventor： Xiaofeng Fan , Philip H. Li , Chung Chun Wan , Anup K. Sharma , Xiangli Li
IPC: H01L27/146
CPC classification number: H01L27/14623 , H01L27/1462 , H01L27/14625 , H01L27/14638 , H01L27/1464 , H01L27/14685
Abstract: A pixel in an image sensor can include a photodetector and a storage region disposed in one substrate, or a photodetector disposed in one substrate and a storage region in another substrate. A buried light shield is disposed between the photodetector and the storage region. A sense region, such as a floating diffusion, can be adjacent to the storage region, with the buried light shield disposed between the photodetector and the storage and sense regions. When the photodetector and the storage region are disposed in separate substrates, a vertical gate can be formed through the buried light shield and used to initiate the transfer of charge from the photodetector and the storage region. A transfer channel formed adjacent to, or around the vertical gate provides a channel for the charge to transfer from the photodetector to the storage region.
Abstract translation: 图像传感器中的像素可以包括设置在一个基板中的光电检测器和存储区域，或者设置在一个基板中的光电检测器和另一个基板中的存储区域。 掩埋的光屏蔽设置在光电检测器和存储区之间。 诸如浮动扩散的感测区域可以与存储区域相邻，其中掩埋的光屏蔽件设置在光电检测器和存储和感测区域之间。 当光电检测器和存储区域设置在分离的基板中时，可以通过掩埋的光屏蔽形成垂直栅极，并且用于开始从光电检测器和存储区域传输电荷。 形成在垂直栅极附近或周围的转移通道提供用于电荷从光电检测器转移到存储区域的通道。
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公开(公告)号：US20240169046A1
公开(公告)日：2024-05-23
申请号：US18521808
申请日：2023-11-28
Applicant: Apple Inc.
Inventor： Deepti S. Prakash , Lucia E. Ballard , Jerrold V. Hauck , Feng Tang , Etai Littwin , Pavan Kumar Anasosalu Vasu , Gideon Littwin , Thorsten Gernoth , Lucie Kucerova , Petr Kostka , Steven P. Hotelling , Eitan Hirsh , Tal Kaitz , Jonathan Pokrass , Andrei Kolin , Moshe Laifenfeld , Matthew C. Waldon , Thomas P. Mensch , Lynn R. Youngs , Christopher G. Zeleznik , Michael R. Malone , Ziv Hendel , Ivan Krstic , Anup K. Sharma
CPC classification number: G06F21/32 , G06F21/83 , G06V40/166 , G06V40/172 , G06V40/40 , H04L9/0844 , H04L9/085 , H04L9/3228 , H04L9/3231 , H04L9/3234 , H04L9/3247 , H04L63/0861 , H04W12/06
Abstract: Techniques are disclosed relating to biometric authentication, e.g., facial recognition. In some embodiments, a device is configured to verify that image data from a camera unit exhibits a pseudo-random sequence of image capture modes and/or a probing pattern of illumination points (e.g., from lasers in a depth capture mode) before authenticating a user based on recognizing a face in the image data. In some embodiments, a secure circuit may control verification of the sequence and/or the probing pattern. In some embodiments, the secure circuit may verify frame numbers, signatures, and/or nonce values for captured image information. In some embodiments, a device may implement one or more lockout procedures in response to biometric authentication failures. The disclosed techniques may reduce or eliminate the effectiveness of spoofing and/or replay attacks, in some embodiments.
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公开(公告)号：US11415679B2
公开(公告)日：2022-08-16
申请号：US16752653
申请日：2020-01-26
Applicant: Apple Inc.
Inventor： Anup K. Sharma , Arnaud Laflaquière , Gennadiy A. Agranov , Gershon Rosenblum , Shingo Mandai
IPC: G01S7/4865 , H01L31/02 , G01S7/483 , G04F10/00 , G01S17/10 , G01S7/4863 , G01S17/18 , G01S17/894
Abstract: A sensing device includes a first array of sensing elements, which output a signal indicative of a time of incidence of a single photon on the sensing element. A second array of processing circuits are coupled respectively to the sensing elements and comprise a gating generator, which variably sets a start time of the gating interval for each sensing element within each acquisition period, and a memory, which records the time of incidence of the single photon on each sensing element in each acquisition period. A controller sets, in each of at least some of the acquisition periods, different, respective gating intervals for different ones of the sensing elements.
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公开(公告)号：US20200021633A1
公开(公告)日：2020-01-16
申请号：US16230930
申请日：2018-12-21
Applicant: Apple Inc.
Inventor： SHOICHIRO SENGOKU , Anup K. Sharma , Andrew Kenneth John McMahon
Abstract: Methods and apparatus for converting streaming media between different formats. A bridging device for e.g., Camera Serial Interface (CSI) and DisplayPort is disclosed. Both the CSI and DisplayPort technologies use low power mode operation during blanking intervals of a video transmission. However, the CSI interface can wake up in a very short amount of time (e.g., ˜400 ns), but the DisplayPort interface takes significantly longer to perform link training (e.g., ˜1 ms). Various embodiments of the present disclosure use frame signaling trigger to start a wait time interval timer; the wait time interval can be used by the bridge device to wake up the DisplayPort interface ahead of the CSI2 D-PHY interface, thereby ensuring that both links are active at the same time. This “wake-up” technique can greatly reduce the size of buffering memories that are required.
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公开(公告)号：US20150163422A1
公开(公告)日：2015-06-11
申请号：US14098504
申请日：2013-12-05
Applicant: Apple Inc.
Inventor： Xiaofeng Fan , Chiajen Lee , Michael R. Malone , Anup K. Sharma
CPC classification number: H04N5/3535 , H04N5/35554
Abstract: An image sensor includes pixels that accumulate charge during a first integration period and pixels that accumulate charge during shorter second integration periods when an image is captured. The pixels having the shorter second integration period accumulate charge at two or more different times during the first integration period. Charge is read out of the pixels associated with the first integration period at the end of the first integration period, while charge is read out of the pixels having the second integration period at the end of each second integration period.
Abstract translation: 图像传感器包括在第一积分周期期间累积电荷的像素和当捕获图像的较短的第二积分周期期间累积电荷的像素。 具有较短的第二积分周期的像素在第一积分周期期间的两个或更多个不同时间积累电荷。 在第一积分周期结束时从与第一积分周期相关联的像素中读出电荷，同时在每个第二积分周期结束时从具有第二积分周期的像素中读出电荷。
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Patent Agency Ranking
6.发明授权公开(公告)号：US11843387B1
公开(公告)日：2023-12-12
申请号：US17395234
申请日：2021-08-05
Applicant: Apple Inc.
Inventor： Susan A. Thompson , Anup K. Sharma , Christopher G Zeleznik , Harish Venkataraman
Abstract: An optoelectronic system includes a transmit side and a receive side. The transmit side and the receive side each include an oversampled phase locked loop configured to receive a decimated system clock signal. Each phase-locked loop is configured to output a high frequency sampling clock signal that, in the case of the transmit side, may be leveraged to generate an arbitrary current waveform that, in turn, can be delayed by a delay-locked loop before being applied to a current-controlled light emitting element. The receive side can generate a clock signal at the same high frequency as the transmit side and can be configured to trigger a reset of the transmit side so that the high frequency clock signals between the transmit and receive sides are synchronized.
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公开(公告)号：US20200158837A1
公开(公告)日：2020-05-21
申请号：US16752653
申请日：2020-01-26
Applicant: Apple Inc.
Inventor： Anup K. Sharma , Arnaud Laflaquière , Gennadiy A. Agranov , Gershon Rosenblum , Shingo Mandai
IPC: G01S7/4865 , G01S7/4863 , G01S17/10 , G04F10/00 , G01S7/483 , H01L31/02 , G01S17/89 , G01S17/18
Abstract: A sensing device includes a first array of sensing elements, which output a signal indicative of a time of incidence of a single photon on the sensing element. A second array of processing circuits are coupled respectively to the sensing elements and comprise a gating generator, which variably sets a start time of the gating interval for each sensing element within each acquisition period, and a memory, which records the time of incidence of the single photon on each sensing element in each acquisition period. A controller sets, in each of at least some of the acquisition periods, different, respective gating intervals for different ones of the sensing elements.
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公开(公告)号：US20190042718A1
公开(公告)日：2019-02-07
申请号：US16050021
申请日：2018-07-31
Applicant: Apple Inc.
Inventor： Deepti S. Prakash , Lucia E. Ballard , Jerrold V. Hauck , Feng Tang , Etai Littwin , Pavan Kumar Ansosalu Vasu , Gideon Littwin , Thorsten Gernoth , Lucie Kucerova , Petr Kostka , Steven P. Hotelling , Eitan Hirsh , Tal Kaitz , Jonathan Pokrass , Andrei Kolin , Moshe Laifenfeld , Matthew C. Waldon , Thomas P. Mensch , Lynn R. Youngs , Christopher G. Zeleznik , Michael R. Malone , Ziv Hendel , Ivan Krstic , Anup K. Sharma , Kelsey Y. Ho
Abstract: Techniques are disclosed relating to biometric authentication, e.g., facial recognition. In some embodiments, a device is configured to verify that image data from a camera unit exhibits a pseudo-random sequence of image capture modes and/or a probing pattern of illumination points (e.g., from lasers in a depth capture mode) before authenticating a user based on recognizing a face in the image data. In some embodiments, a secure circuit may control verification of the sequence and/or the probing pattern. In some embodiments, the secure circuit may verify frame numbers, signatures, and/or nonce values for captured image information. In some embodiments, a device may implement one or more lockout procedures in response to biometric authentication failures. The disclosed techniques may reduce or eliminate the effectiveness of spoofing and/or replay attacks, in some embodiments.
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公开(公告)号：US20160269656A1
公开(公告)日：2016-09-15
申请号：US14827141
申请日：2015-08-14
Applicant: Apple Inc.
Inventor： Douglas K. Tao , Anup K. Sharma
CPC classification number: H04N5/3532 , H04N5/2256 , H04N5/2357
Abstract: Devices and methods for adjusting an exposure window of a rolling shutter based on a frequency determined from ambient light gathered by a bimodal component are disclosed. Flickering light sources may cause artifacts in captured images, due to interplay between a period of a frequency of ambient light and the exposure window. An image capture device includes a semiconductor component configured to operate in two modes and an exposure window control component configured to compensate for the flickering based on a signal from the light source. In a sensor mode, the semiconductor component may operate to detect the frequency of ambient light. To avoid image artifacts, the frequency of the ambient light is analyzed and an exposure time is adjusted to an integer multiple of the period of the frequency such that exposure is matched to the periodic illumination of the flickering light source.
Abstract translation: 公开了一种用于根据由双模组件聚集的环境光确定的频率来调节卷帘的曝光窗的装置和方法。 由于环境光的频率周期与曝光窗口之间的相互作用，闪烁的光源可能在捕获的图像中造成伪像。 图像捕获装置包括被配置为以两种模式操作的半导体部件和被配置为基于来自光源的信号来补偿闪烁的曝光窗控制部件。 在传感器模式中，半导体部件可以操作以检测环境光的频率。 为了避免图像伪影，分析环境光的频率，并且将曝光时间调整到频率周期的整数倍，使得曝光与闪烁光源的周期性照明相匹配。
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公开(公告)号：US09356061B2
公开(公告)日：2016-05-31
申请号：US13959362
申请日：2013-08-05
Applicant: Apple Inc.
Inventor： Xiaofeng Fan , Philip H. Li , Chung Chun Wan , Anup K. Sharma , Xiangli Li
IPC: H01L27/146
CPC classification number: H01L27/14623 , H01L27/1462 , H01L27/14625 , H01L27/14638 , H01L27/1464 , H01L27/14685
Abstract: A pixel in an image sensor can include a photodetector and a storage region disposed in one substrate, or a photodetector disposed in one substrate and a storage region in another substrate. A buried light shield is disposed between the photodetector and the storage region. A sense region, such as a floating diffusion, can be adjacent to the storage region, with the buried light shield disposed between the photodetector and the storage and sense regions. When the photodetector and the storage region are disposed in separate substrates, a vertical gate can be formed through the buried light shield and used to initiate the transfer of charge from the photodetector and the storage region. A transfer channel formed adjacent to, or around the vertical gate provides a channel for the charge to transfer from the photodetector to the storage region.
Abstract translation: 图像传感器中的像素可以包括设置在一个基板中的光电检测器和存储区域，或者设置在一个基板中的光电检测器和另一个基板中的存储区域。 掩埋的光屏蔽设置在光电检测器和存储区之间。 诸如浮动扩散的感测区域可以与存储区域相邻，其中掩埋的光屏蔽件设置在光电检测器和存储和感测区域之间。 当光电检测器和存储区域设置在分离的基板中时，可以通过掩埋的光屏蔽形成垂直栅极，并且用于开始从光电检测器和存储区域传输电荷。 形成在垂直栅极附近或周围的转移通道提供用于电荷从光电检测器转移到存储区域的通道。
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