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公开(公告)号：US08577320B2
公开(公告)日：2013-11-05
申请号：US13450994
申请日：2012-04-19
申请人： Michaël Quinsat , Marie-Claire Cyrille , Ursula Ebels , Jean-Philippe Michel , Michaël Pelissier , Patrick Villard , Mykhailo Zarudniev
发明人： Michaël Quinsat , Marie-Claire Cyrille , Ursula Ebels , Jean-Philippe Michel , Michaël Pelissier , Patrick Villard , Mykhailo Zarudniev
IPC分类号： H04B1/06
CPC分类号： G01R33/098 , G01R33/09 , G01R33/1284 , H03B15/006
摘要： An oscillation detector having an RF oscillator configured to be synchronized with a first frequency and a comparator for distinguishing the synchronized state from the non-synchronized state of the radiofrequency oscillator on the basis of an oscillating signal produced by the radiofrequency oscillator and indicating the presence of oscillations in a frequency band around the first frequency in response to identifying the synchronized state and, in alternation, indicating the absence of oscillations in this frequency band otherwise.
摘要翻译： 一种振荡检测器，具有被配置为与第一频率同步的RF振荡器和用于根据由射频振荡器产生的振荡信号区分同步状态与非同步状态的比较器，并且指示存在 响应于识别同步状态并且交替地指示在该频带中不存在振荡的情况下，在第一频率周围的频带中的振荡。
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公开(公告)号：US20120268172A1
公开(公告)日：2012-10-25
申请号：US13450994
申请日：2012-04-19
申请人： Michaël Quinsat , Marie-Claire Cyrille , Ursula Ebels , Jean-Philippe Michel , Michaël Pelissier , Patrick Villard , Mykhailo Zarudniev
发明人： Michaël Quinsat , Marie-Claire Cyrille , Ursula Ebels , Jean-Philippe Michel , Michaël Pelissier , Patrick Villard , Mykhailo Zarudniev
IPC分类号： H03L7/00
CPC分类号： G01R33/098 , G01R33/09 , G01R33/1284 , H03B15/006
摘要： An oscillation detector having an RF oscillator configured to be synchronized with a first frequency and a comparator for distinguishing the synchronized state from the non-synchronized state of the radiofrequency oscillator on the basis of an oscillating signal produced by the radiofrequency oscillator and indicating the presence of oscillations in a frequency band around the first frequency in response to identifying the synchronized state and, in alternation, indicating the absence of oscillations in this frequency band otherwise.
摘要翻译： 一种振荡检测器，具有被配置为与第一频率同步的RF振荡器和用于根据由射频振荡器产生的振荡信号区分同步状态与非同步状态的比较器，并且指示存在 响应于识别同步状态并且交替地指示在该频带中不存在振荡的情况下，在第一频率周围的频带中的振荡。
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公开(公告)号：US08655302B2
公开(公告)日：2014-02-18
申请号：US13449644
申请日：2012-04-18
IPC分类号： H04B1/16
CPC分类号： H03B15/006 , H03B15/00 , H03D3/26
摘要： A demodulator of an FM signal modulated about a carrier frequency with a modulation frequency has an RF oscillator configured to be synchronized, under identical conditions of operation, with oscillations at first and second frequencies used in the FM signal to encode respective pieces of information. The oscillator has a magnetoresistive device; and a low-pass filter connected to an output electrode of the magnetoresistive device to filter an oscillating signal, generated by the oscillator and to a rendering terminal to provide, as a demodulated electrical signal, the filtered signal, the cut-off frequency fc at −3 dB of this filter being strictly lower than the frequency and higher than the modulation frequency.
摘要翻译： 调制频率调制后的FM信号的解调器具有RF振荡器，其被配置为在相同的操作条件下与在FM信号中使用的第一和第二频率上的振荡同步以编码相应的信息。 振荡器具有磁阻器件; 以及连接到磁阻装置的输出电极的低通滤波器，以对由振荡器产生的振荡信号和渲染终端进行滤波，以将解调后的电信号，滤波后的信号，截止频率fc提供给 该滤波器的-3 dB严格低于频率，高于调制频率。
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公开(公告)号：US20120270515A1
公开(公告)日：2012-10-25
申请号：US13449644
申请日：2012-04-18
IPC分类号： H04B1/16
CPC分类号： H03B15/006 , H03B15/00 , H03D3/26
摘要： A demodulator of an FM signal modulated about a carrier frequency with a modulation frequency has an RF oscillator configured to be synchronized, under identical conditions of operation, with oscillations at first and second frequencies used in the FM signal to encode respective pieces of information. The oscillator has a magnetoresistive device; and a low-pass filter connected to an output electrode of the magnetoresistive device to filter an oscillating signal, generated by the oscillator and to a rendering terminal to provide, as a demodulated electrical signal, the filtered signal, the cut-off frequency fc at −3 dB of this filter being strictly lower than the frequency and higher than the modulation frequency.
摘要翻译： 调制频率调制后的FM信号的解调器具有RF振荡器，其被配置为在相同的操作条件下与在FM信号中使用的第一和第二频率上的振荡同步以编码相应的信息。 振荡器具有磁阻器件; 以及连接到磁阻装置的输出电极的低通滤波器，以对由振荡器产生的振荡信号和渲染终端进行滤波，以将解调后的电信号，滤波后的信号，截止频率fc提供给 该滤波器的-3 dB严格低于频率，高于调制频率。
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公开(公告)号：US20130002362A1
公开(公告)日：2013-01-03
申请号：US13518054
申请日：2010-12-20
IPC分类号： H03B5/30
CPC分类号： H03B15/006
摘要： A radiofrequency oscillator comprises: a free layer (4), a current injector (6) for injecting spin-polarized current into the free layer, this injector having a spin-polarized current injection face (16) directly in contact with the free layer, a magnetoresistive contact (8) having a measurement face (26) directly in contact with the free layer, in order to form, in combination with the free layer, a tunnel junction for measuring the precession of the magnetization of the free layer, a conducting pad (30) directly in contact with the free layer in order to make an electrical current flow through the injector without passing through the magnetoresistive contact. At least part of the measurement face (26) and part of the injection face (16) are placed facing each other on each side of the free layer (4).
摘要翻译： 射频振荡器包括：自由层（4），用于将自旋极化电流注入自由层的电流注入器（6），该注入器具有直接与自由层接触的自旋极化电流注入面（16） 具有直接与自由层接触的测量面（26）的磁阻触点（8），以便与自由层组合形成用于测量自由层的磁化进动的隧道结，导电 焊盘（30）直接与自由层接触，以便使电流流过注射器而不通过磁阻触点。 所述测量面（26）的至少一部分和所述注入面（16）的一部分在所述自由层（4）的每一侧彼此相对放置。
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6.发明授权公开(公告)号：US08922285B2
公开(公告)日：2014-12-30
申请号：US13582291
申请日：2011-03-01
申请人： Dimitri Houssameddine , Bertrand Delaet , Marie-Claire Cyrille , Ursula Ebels , Michael Quinsat
发明人： Dimitri Houssameddine , Bertrand Delaet , Marie-Claire Cyrille , Ursula Ebels , Michael Quinsat
CPC分类号： H03B15/006 , H03L5/00 , H03L7/26
摘要： The invention relates to a radiofrequency oscillator which incorporates: a spin-polarized electric current magnetoresistive device (6), a terminal (18) for controlling the frequency or amplitude of the oscillating signal, a servo loop (34) connected between the output terminal and the control terminal for applying a control signal to the control terminal in order to slave a characteristic of the oscillating signal to a reference value, the servo loop (34) comprising: a sensor (36) of the amplitude of the oscillating signal oscillations, and a comparator (38) capable of generating the control signal according to the measured amplitude and the reference value.
摘要翻译： 本发明涉及一种射频振荡器，其包括：自旋极化电流磁阻器件（6），用于控制振荡信号的频率或振幅的端子（18），连接在输出端子和 所述控制端子用于向所述控制端子施加控制信号以将所述振荡信号的特性从属于参考值，所述伺服环路（34）包括：振荡信号振荡幅度的传感器（36），以及 能够根据所测量的振幅和基准值产生控制信号的比较器（38）。
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公开(公告)号：US08766733B2
公开(公告)日：2014-07-01
申请号：US13518054
申请日：2010-12-20
IPC分类号： H03B15/00
CPC分类号： H03B15/006
摘要： A radiofrequency oscillator comprises: a free layer (4), a current injector (6) for injecting spin-polarized current into the free layer, this injector having a spin-polarized current injection face (16) directly in contact with the free layer, a magnetoresistive contact (8) having a measurement face (26) directly in contact with the free layer, in order to form, in combination with the free layer, a tunnel junction for measuring the precession of the magnetization of the free layer, a conducting pad (30) directly in contact with the free layer in order to make an electrical current flow through the injector without passing through the magnetoresistive contact. At least part of the measurement face (26) and part of the injection face (16) are placed facing each other on each side of the free layer (4).
摘要翻译： 射频振荡器包括：自由层（4），用于将自旋极化电流注入自由层的电流注入器（6），该注入器具有直接与自由层接触的自旋极化电流注入面（16） 具有直接与自由层接触的测量面（26）的磁阻触点（8），以便与自由层组合形成用于测量自由层的磁化进动的隧道结，导电 焊盘（30）直接与自由层接触，以便使电流流过注射器而不通过磁阻触点。 所述测量面（26）的至少一部分和所述注入面（16）的一部分在所述自由层（4）的每一侧彼此相对放置。
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8.发明授权公开(公告)号：US08823460B2
公开(公告)日：2014-09-02
申请号：US13582294
申请日：2011-03-01
申请人： Dimitri Houssameddine , Bertrand Delaet , Marie-Claire Cyrille , Ursula Ebels , Michael Quinsat
发明人： Dimitri Houssameddine , Bertrand Delaet , Marie-Claire Cyrille , Ursula Ebels , Michael Quinsat
CPC分类号： H03B15/006
摘要： The invention relates to a radiofrequency oscillator which incorporates: a spin-polarized electric current magnetoresistive device (6) for generating an oscillating signal at an oscillation frequency on an output terminal (10), and a terminal (18) for controlling the frequency or amplitude of the oscillating signal, and a feedback loop (44) comprising an amplifier (46) provided with: an input connected to the output terminal (10) of the magnetoresistive device (6) so as to amplify the portion of an oscillating signal detected at the output terminal, and an output connected to the control terminal (18) so as to inject onto said control terminal the amplified portion of the oscillating signal which is phase-related to the oscillating signal generated at the output terminal.
摘要翻译： 本发明涉及一种射频振荡器，其包括：用于在输出端子（10）上以振荡频率产生振荡信号的自旋极化电流磁阻器件（6）和用于控制频率或振幅的端子（18） 以及包括放大器（46）的反馈回路（44），所述放大器（46）具有：连接到所述磁阻器件（6）的输出端子（10）的输入端，以便放大所述振荡信号部分 输出端子和连接到控制端子（18）的输出端，以便将与在输出端子处产生的振荡信号相关的振荡信号的放大部分注入到所述控制端子上。
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9.发明授权Spin-valve or tunnel-junction radio-frequency oscillator, process for adjusting the frequency of such an oscillator and network consisting of a plurality of such oscillators 有权旋转阀或隧道结射频振荡器，用于调整这种振荡器和由多个这样的振荡器组成的网络的频率的过程公开(公告)号：US08542072B2
公开(公告)日：2013-09-24
申请号：US13245540
申请日：2011-09-26
IPC分类号： H03B28/00
CPC分类号： H03B15/006 , H01L43/08
摘要： A radio-frequency oscillator incorporates a magnetoresistive device within which an electron current is able to flow. The device includes a stack including: a magnetic trapped layer, the magnetization of which is of substantially fixed direction; a magnetic free layer; and a non-magnetic intermediate layer-interposed between the free layer and the trapped layer. The oscillator also includes a mechanism capable of making an electron current flow in the layers constituting the stack and in a direction perpendicular to the plane which contains the layers. At least the free layer is devoid of any material at its center. The electron current density flowing through the stack is capable of generating a magnetization in the free layer in a micromagnetic configuration in the shape of a skewed vortex flowing in the free layer around the center of the free layer.
摘要翻译： 射频振荡器包括电磁流能够流动的磁阻器件。 该装置包括堆叠，其包括：磁化层，其磁化基本上是固定的方向; 无磁层; 以及介于自由层和捕获层之间的非磁性中间层。 该振荡器还包括能够在构成叠层的层中并且在垂直于包含这些层的平面的方向上产生电子电流的机构。 至少自由层在其中心没有任何材料。 流过堆叠的电子密度能够以自由层中的自由层周围的自由层流动的歪斜涡流的形状在微磁结构中产生磁化。
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10.发明申请公开(公告)号：US20130057357A1
公开(公告)日：2013-03-07
申请号：US13582294
申请日：2011-03-01
申请人： Dimitri Houssameddine , Michael Quinsat , Bertrand Delaet , Marie-Claire Cyrille , Ursula Ebels
发明人： Dimitri Houssameddine , Michael Quinsat , Bertrand Delaet , Marie-Claire Cyrille , Ursula Ebels
IPC分类号： H03J7/04
CPC分类号： H03B15/006
摘要： The invention relates to a radiofrequency oscillator which incorporates: a spin-polarized electric current magnetoresistive device (6) for generating an oscillating signal at an oscillation frequency on an output terminal (10), and a terminal (18) for controlling the frequency or amplitude of the oscillating signal, and a feedback loop (44) comprising an amplifier (46) provided with: an input connected to the output terminal (10) of the magnetoresistive device (6) so as to amplify the portion of an oscillating signal detected at the output terminal, and an output connected to the control terminal (18) so as to inject onto said control terminal the amplified portion of the oscillating signal which is phase-related to the oscillating signal generated at the output terminal.
摘要翻译： 本发明涉及一种射频振荡器，其包括：用于在输出端子（10）上以振荡频率产生振荡信号的自旋极化电流磁阻器件（6）和用于控制频率或振幅的端子（18） 以及包括放大器（46）的反馈回路（44），所述放大器（46）具有：连接到所述磁阻器件（6）的输出端子（10）的输入端，以便放大所述振荡信号部分 输出端子和连接到控制端子（18）的输出端，以便将与在输出端子处产生的振荡信号相关的振荡信号的放大部分注入到所述控制端子上。
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