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1.发明授权公开(公告)号：US12073903B1
公开(公告)日：2024-08-27
申请号：US18172983
申请日：2023-02-22
CPC分类号： G11C29/50004 , G11C29/50016
摘要： A method may be performed by a leakage monitoring and compensation system configured to estimate and compensate for leakage current in memory unit cells. The method may include identifying a leakage monitoring component associated with a memory unit cell. Further, the method may include sampling multiple leak events during a first exposure window. The method may include storing a first count representing the plurality of leak events sampled during the first exposure window. Each leak event may correspond to a unit of memory leakage. The method may include sampling multiple sensing events during a second exposure window. The method may include detecting a second count representing the sensing events sampled during the second exposure window. The method may include determining a compensation value representing a difference between the first count and the second count.
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公开(公告)号：US20240276111A1
公开(公告)日：2024-08-15
申请号：US18168360
申请日：2023-02-13
CPC分类号： H04N25/50 , G02B27/0172 , H02J7/0063 , H02J7/345 , H04N25/771 , H04N25/78 , G01S17/08 , G02B2027/014 , G02B2027/0178
摘要： This disclosure describes a method of operating an image sensor and a plurality of memory cells associated with the image sensor, each memory cell comprising: one or more input lines, a stop exposure output line; a storage capacitor; and a stop exposure circuit. The method may comprise, by each of the memory cells, sensing a voltage representing an exposure event in response to the input lines being enabled, and by a first one of the memory cells, enabling the stop exposure output line in response to a charge on the storage capacitor satisfying a charge threshold; and stopping further exposure of the image sensor in response to the stop exposure output line being enabled for the first one of the memory cells.
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公开(公告)号：US20240313771A1
公开(公告)日：2024-09-19
申请号：US18184936
申请日：2023-03-16
发明人： Umanath Ramachandra Kamath , Daniel Villamizar , Yair Shachna Shemesh , Robert Wiser , Ramakrishna Chilukuri
IPC分类号： H03K17/687
CPC分类号： H03K17/6872
摘要： In one embodiment, an electrical circuit module may include a bootstrap capacitor connected to a bootstrap-capacitor charging switch. A first signal channel may include a first sampling switch and a first control switch that controls a first connection between the bootstrap capacitor and a first control input of the first sampling switch. A second signal channel may include a second sampling switch and a second control switch that controls a second connection between the bootstrap capacitor and a second control input of the second sampling switch. The bootstrap capacitor may be charged during a first operation phase during which the bootstrap-capacitor charging switch is turned on. The first control switch of the first signal channel may be turned on during a first sub-phase of a second operation phase, and the second control switch of the second signal channel is turned on during a second sub-phase of the second operation phase.
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公开(公告)号：US20240283444A1
公开(公告)日：2024-08-22
申请号：US18170795
申请日：2023-02-17
发明人： Umanath Ramachandra Kamath , Ali Mesgarani , Jason Silver , Robert Wiser , Augusto Ronchini Ximenes
IPC分类号： H03K17/16
CPC分类号： H03K17/162 , H01L27/088
摘要： A circuit may be configured to reduce current leakage. The circuit may include a bias generator, a charge interface, and a charge controller. The bias generator may be coupled to a first voltage source and configured to generate a first current and provide a first voltage. The charge interface may be communicatively coupled to the bias generator and configured to mirror the first current into a second current. The charge controller may be communicatively coupled to the charge interface and configured to receive the second current from the charge interface and provide a second voltage. The bias generator may be further configured to perform an ultra-low leakage switching operation in which the first voltage is switched to a third voltage while reducing a first possibility of band-band tunneling leakage at the charge interface.
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5.发明公开公开(公告)号：US20240282398A1
公开(公告)日：2024-08-22
申请号：US18172983
申请日：2023-02-22
IPC分类号： G11C29/50
CPC分类号： G11C29/50004 , G11C29/50016
摘要： A method may be performed by a leakage monitoring and compensation system configured to estimate and compensate for leakage current in memory unit cells. The method may include identifying a leakage monitoring component associated with a memory unit cell. Further, the method may include sampling multiple leak events during a first exposure window. The method may include storing a first count representing the plurality of leak events sampled during the first exposure window. Each leak event may correspond to a unit of memory leakage. The method may include sampling multiple sensing events during a second exposure window. The method may include detecting a second count representing the sensing events sampled during the second exposure window. The method may include determining a compensation value representing a difference between the first count and the second count.
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