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公开(公告)号：US12020162B2
公开(公告)日：2024-06-25
申请号：US17106356
申请日：2020-11-30
发明人： Giorgia Dellaferrera , Stanislaw Andrzej Wozniak , Angeliki Pantazi , Evangelos Stavros Eleftheriou
摘要： Training a neural network that comprises nodes and weighted connections between selected ones of the nodes is described herein. A function of a desired activity and a current activity during training results in a feedback signal used for adjusting weight values of the connections. For a weight value update cycle the process determines an importance value for various nodes based on current weight values of the connections and determines an adjustment of the feedback signal specific for each weight value of the connections by a combination of a gradient value derived from the feedback signal for a connection and the determined corresponding element of the adjustment matrix. The updates are applied to the connections during update cycles.
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公开(公告)号：US11526735B2
公开(公告)日：2022-12-13
申请号：US16295007
申请日：2019-03-07
摘要： A neuromorphic neuron apparatus includes an accumulation block and an output generation block. The apparatus has a current state variable corresponding to previously received one or more signals. The output generation block is configured to use an activation function for generating a current output value based on the current state variable. The accumulation block is configured to repeatedly: compute an adjustment of the current state variable using the current output value and a correction function indicative of a decay behaviour of a time constant of the apparatus; receive a current signal; update the current state variable using the computed adjustment and the received signal, the updated state variable becoming the current state variable; and cause the output generation block to generate a current output value based on the current state variable.
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公开(公告)号：US10650852B2
公开(公告)日：2020-05-12
申请号：US16290758
申请日：2019-03-01
发明人： Kevin B. Judd , Simeon Furrer , Angeliki Pantazi , Mark A. Lantz
摘要： A method according to one embodiment includes generating a y-position estimate based on a servo readback signal, and determining a nonlinearity-correction value corresponding to the y-position estimate. The method further includes adjusting the y-position estimate using the nonlinearity-correction value. A computer program product for compensating for nonlinearity in a timing based servo pattern according to another embodiment includes a computer readable storage medium having program instructions embodied therewith. The program instructions are readable and/or executable by a controller to cause the controller to perform the foregoing method. An apparatus according to another embodiment includes a controller configured to perform the foregoing method.
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公开(公告)号：US20200035266A1
公开(公告)日：2020-01-30
申请号：US16398030
申请日：2019-04-29
发明人： Kevin B. Judd , Simeon Furrer , Angeliki Pantazi , Mark A. Lantz
摘要： A method according to one embodiment includes applying a static head skew to a magnetic tape head, positioning the first reader at a first y-position relative to a servo pattern in a servo band, and measuring y-positions of the second reader relative to the servo pattern in the servo band while the first reader is at the first y-position. A y-position value is calculated for the second reader based on the measured y-positions. The following process is repeated several times: moving the first reader to a next y-position, measuring y-positions of the second reader while the first reader is at the next y-position, and calculating a y-position value of the second reader based on the measured y-position of the second reader. A unique nonlinearity value of the servo pattern in the servo band is calculated for each of the calculated y-position values of the second reader.
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公开(公告)号：US20190294952A1
公开(公告)日：2019-09-26
申请号：US16435527
申请日：2019-06-09
摘要： A resistive memory cell is connected in circuitry which has a first input terminal for applying neuron input signals including a read portion and a write portion. The circuitry includes a read circuit producing a read signal dependent on resistance of the memory cell, and an output terminal providing a neuron output signal, dependent on the read signal in a first state of the memory cell. The circuitry also includes a storage circuit storing a measurement signal dependent on the read signal, and a switch set operable to supply the read signal to the storage circuit during application of the read portion of each neuron input signal to the memory cell, and, after application of the read portion, to apply the measurement signal in the apparatus to enable resetting of the memory cell to a second state.
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公开(公告)号：US09685180B2
公开(公告)日：2017-06-20
申请号：US15067094
申请日：2016-03-10
发明人： Nhan X. Bui , Angeliki Pantazi , Tomoko Taketomi
CPC分类号： G11B5/584 , G11B5/00817 , G11B5/56 , G11B15/1883 , G11B15/602
摘要： A computer program product for positioning an actuator, according to one embodiment, includes a computer readable storage medium having program instructions embodied therewith. The computer readable storage medium is not a transitory signal per se. The program instructions are executable by a processing circuit to cause the processing circuit to perform a method that includes generating or receiving, by the processing circuit, a first value representative of a lateral position of a tape, and using, by the processing circuit, the first value to adjust a position of a coarse actuator for moving a magnetic head in response to determining that the first value is in a first range relative to a first threshold. An integrator value is used by the processing circuit to adjust the position of the coarse actuator in response to determining that the first value is in a second range relative to the first threshold.
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公开(公告)号：US09449638B2
公开(公告)日：2016-09-20
申请号：US14244323
申请日：2014-04-03
发明人： Giovanni Cherubini , Jens Jelitto , Eiji Ogura , Angeliki Pantazi
CPC分类号： G11B15/46 , G11B15/1875 , G11B15/43 , G11B15/44 , G11B15/54
摘要： A control device for controlling the transport of a tape within a tape transport system, the tape transport system having a head being operable to read data from and/or write data to the tape, an outboard reel and an inboard reel, wherein the tape is moveable from the outboard reel to the inboard reel in forward direction or from the inboard reel to the outboard reel in reverse direction, wherein the control device is adapted to generate control signals to control the velocity of the outboard reel and the velocity of the inboard reel as a function of a primary velocity of the tape at the head and a secondary velocity of the tape at the inboard reel and/or a secondary velocity of the tape at the outboard reel.
摘要翻译： 一种用于控制磁带传送系统内的磁带传输的控制装置，磁带传输系统具有一个头部，用于从数据读取数据和/或将数据写入磁带，外侧卷轴和内侧卷轴，其中磁带是 从外侧卷轴向前移动的内侧卷轴或从内侧卷轴向反方向移动，其中控制装置适于产生控制信号以控制外侧卷盘的速度和内侧卷轴的速度 作为磁带头部的初速度和内侧卷轴上的带子的次速度和/或在外侧卷轴上的带的次速度的函数。
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公开(公告)号：US20160267379A1
公开(公告)日：2016-09-15
申请号：US14804829
申请日：2015-07-21
CPC分类号： G06N3/0635 , G06N3/049 , G06N3/063 , G06N3/08 , G11C11/54 , G11C11/5678 , G11C13/0004 , G11C13/004 , G11C13/0069 , G11C2013/0092
摘要： Method to produce a neuromorphic synapse apparatus comprising a memelement for storing a synaptic weight, and programming logic. The memelement is adapted to exhibit a desired programming characteristic. The programming logic is responsive to a stimulus prompting update of the synaptic weight for generating a programming signal for programming the memelement to update said weight. The programming logic may be responsive to an input signal indicating an input weight-change value ΔWi, and may be adapted to generate a programming signal dependent on the input weight-change value ΔWi. The programming logic is adapted such that the programming signals exploit the programming characteristic of the memelement to provide a desired weight-dependent synaptic update efficacy.
摘要翻译： 产生神经形态突触装置的方法，包括用于存储突触重量的记忆元件和编程逻辑。 该元素适于表现出期望的编程特性。 编程逻辑响应于促进突触权重更新的刺激，以产生编程信号，用于对所述元件进行编程以更新所述重量。 编程逻辑可以响应于指示输入权重变化值ΔWi的输入信号，并且可以适于根据输入权重变化值ΔWi生成编程信号。 编程逻辑被适配成使得编程信号利用该元件的编程特性来提供期望的与权重相关的突触更新效能。
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公开(公告)号：US20160265939A1
公开(公告)日：2016-09-15
申请号：US14825737
申请日：2015-08-13
发明人： Walter Haeberle , Angeliki Pantazi , Abu Sebastian , Tuma Tomas
IPC分类号： G01D5/16
摘要： A method for determining of a position of an object using a sensor arrangement that includes a first magnetoresistive element and a second magnetoresistive element. A source provides a magnetic field with first and second magnetic poles. The source is arranged between the first magnetoresistive element and the second magnetoresistive element with the first magnetic pole facing the first magnetoresistive element and the second magnetic pole facing the second magnetoresistive element. The first magnetoresistive element is arranged in the magnetic field and provides a first output signal dependent on a position of the first magnetoresistive element relative to the magnetic field source. The second magnetoresistive element is arranged in the magnetic field and provides a second output signal dependent on a position of the second magnetoresistive element relative to the magnetic field source. A measurement unit determines a position of the magnetic field source relative to the first and the second magnetoresistive elements dependent on the first output signal and the second output signal.
摘要翻译： 一种使用包括第一磁阻元件和第二磁阻元件的传感器装置来确定物体的位置的方法。 源提供具有第一和第二磁极的磁场。 源极布置在第一磁阻元件和第二磁阻元件之间，其中第一磁极面对第一磁阻元件，第二磁极面对第二磁阻元件。 第一磁阻元件被布置在磁场中并且提供取决于第一磁阻元件相对于磁场源的位置的第一输出信号。 第二磁阻元件被布置在磁场中并且提供取决于第二磁阻元件相对于磁场源的位置的第二输出信号。 测量单元根据第一输出信号和第二输出信号确定磁场源相对于第一和第二磁阻元件的位置。
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公开(公告)号：US20150199986A1
公开(公告)日：2015-07-16
申请号：US14637317
申请日：2015-03-03
发明人： Nhan X. Bui , Angeliki Pantazi , Tomoko Taketomi
IPC分类号： G11B5/56
CPC分类号： G11B5/584 , G11B5/00817 , G11B5/56 , G11B15/1883 , G11B15/602
摘要： A method according to one embodiment includes generating or receiving a value representative of a lateral position of a tape. The value is used to adjust a position of a coarse actuator in response to determining that the value is in a first range relative to a first threshold. An integrator center value is used to adjust the position of the coarse actuator in response to determining that the value is in a second range relative to the first threshold.
摘要翻译： 根据一个实施例的方法包括生成或接收表示带的横向位置的值。 响应于确定该值在相对于第一阈值的第一范围内，该值被用于调整粗致动器的位置。 响应于确定该值在相对于第一阈值的第二范围内，积分器中心值被用于调整粗致动器的位置。
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