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公开(公告)号：US06653962B2
公开(公告)日：2003-11-25
申请号：US09999864
申请日：2001-10-19
IPC分类号： H03M112
CPC分类号： H03M1/005 , G04F10/005 , H03M1/60
摘要： A dual function superconducting digitizer circuit which can selectively function either as an analog-to-digital converter (ADC) or as a time-to-digital converter (TDC). Superconducting ADCs and TDCs can provide performance far superior to that obtained using conventional electronics by taking advantage of the intrinsic properties—high switching speed, quantum accuracy, dispersion-less transmission lines, radiation hardness, and extremely low power dissipation—of superconductivity. Since both ADC and TDC functions are desired in most measurement systems, a dual-function digitizer is not only more attractive from a system integration perspective but is also more marketable.
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公开(公告)号：US20070077906A1
公开(公告)日：2007-04-05
申请号：US11243019
申请日：2005-10-04
IPC分类号： H04B1/26
CPC分类号： H03D7/005
摘要： Digital mixers which permit mixing of asynchronous signals is constructed of Rapid Single Flux Quantum (RSFQ) logic elements. The logic elements may include an RSFQ non-destructive readout cell (NDRO), an RSFQ D flip-flop, an RSFQ XOR circuit, and an RSFQ T flip-flop. A binary tree arrangement of T flip-flops can be used to provide in-phase and quadrature phase-divided replicas of a reference signal. The mixing elements can be either an XOR circuit, a dual port NDRO circuit functioning as a multiplexer or an RS type NDRO functioning as an AND gate. The RSFQ logic elements utilize Josephson junctions which operate in superconducting temperature domains.
摘要翻译： 允许异步信号混合的数字混频器由快速单通量量子（RSFQ）逻辑元件构成。 逻辑元件可以包括RSFQ非破坏性读出单元（NDRO），RSFQ D触发器，RSFQ XOR电路和RSFQ T触发器。 可以使用T触发器的二叉树布置来提供参考信号的同相和正交相位分割副本。 混合元件可以是XOR电路，用作多路复用器的双端口NDRO电路或用作AND门的RS型NDRO。 RSFQ逻辑元件利用在超导温度域中工作的约瑟夫逊结。
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公开(公告)号：US20130004180A1
公开(公告)日：2013-01-03
申请号：US13602474
申请日：2012-09-04
申请人： Deepnarayan Gupta , Oleg Mukhanov
发明人： Deepnarayan Gupta , Oleg Mukhanov
IPC分类号： H04B10/00
CPC分类号： H04B10/25752 , H04B10/2575 , H04B10/40 , H04B10/5561 , H04B10/697 , H04L27/2096
摘要： A transceiver architecture for wireless base stations wherein a broadband radio frequency signal is carried between at least one tower-mounted unit and a ground-based unit via optical fibers, or other non-distortive media, in either digital or analog format. Each tower-mounted unit (for both reception and transmission) has an antenna, analog amplifier and an electro-optical converter. The ground unit has ultrafast data converters and digital frequency translators, as well as signal linearizers, to compensate for nonlinear distortion in the amplifiers and optical links in both directions. In one embodiment of the invention, at least one of the digital data converters, frequency translators, and linearizers includes superconducting elements mounted on a cryocooler.
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公开(公告)号：US08050648B1
公开(公告)日：2011-11-01
申请号：US12725426
申请日：2010-03-16
IPC分类号： H04B1/26 , H04B1/18 , H04B1/16 , H04B7/216 , H04B10/00 , H03K19/195 , H03K19/21 , H03K3/289 , H03K17/00 , G06F7/50 , G06F15/00 , H03B19/00 , H03B15/00 , G11C11/44 , G11C11/00 , H01L39/22 , H03M1/00 , H04L27/00 , H04L25/03 , H04L25/49 , H04L27/06 , H04K1/02
CPC分类号： H03D7/005
摘要： Digital mixers which permit mixing of asynchronous signals may be constructed of Rapid Single Flux Quantum (RSFQ) logic elements. The logic elements may include an RSFQ non-destructive readout cell (NDRO), an RSFQ D flip-flop, an RSFQ XOR circuit, and an RSFQ T flip-flop. A binary tree arrangement of T flip-flops can be used to provide in-phase and quadrature phase-divided replicas of a reference signal. The mixing elements can be either an XOR circuit, a dual port NDRO circuit functioning as a multiplexer or an RS type NDRO functioning as an AND gate. The RSFQ logic elements utilize Josephson junctions which operate in superconducting temperature domains.
摘要翻译： 允许异步信号混合的数字混频器可以由快速单通量子（RSFQ）逻辑元件构成。 逻辑元件可以包括RSFQ非破坏性读出单元（NDRO），RSFQ D触发器，RSFQ XOR电路和RSFQ T触发器。 可以使用T触发器的二叉树布置来提供参考信号的同相和正交相位分割副本。 混合元件可以是XOR电路，用作多路复用器的双端口NDRO电路或用作AND门的RS型NDRO。 RSFQ逻辑元件利用在超导温度域中工作的约瑟夫逊结。
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公开(公告)号：US07680474B2
公开(公告)日：2010-03-16
申请号：US11243019
申请日：2005-10-04
IPC分类号： H04B1/26 , H04B7/216 , H03M1/00 , H03M3/00 , H03M1/12 , H04L12/50 , H04Q11/00 , H04L27/06 , H03D1/00 , G06F7/52
CPC分类号： H03D7/005
摘要： Digital mixers which permit mixing of asynchronous signals are constructed of Rapid Single Flux Quantum (RSFQ) logic elements. The logic elements may include an RSFQ non-destructive readout cell (NDRO), an RSFQ D flip-flop, an RSFQ XOR circuit, and an RSFQ T flip-flop. A binary tree arrangement of T flip-flops can be used to provide in-phase and quadrature phase-divided replicas of a reference signal. The mixing elements can be either an XOR circuit, a dual port NDRO circuit functioning as a multiplexer or an RS type NDRO functioning as an AND gate. The RSFQ logic elements utilize Josephson junctions which operate in superconducting temperature domains.
摘要翻译： 允许混合异步信号的数字混频器由快速单通量量子（RSFQ）逻辑元件构成。 逻辑元件可以包括RSFQ非破坏性读出单元（NDRO），RSFQ D触发器，RSFQ XOR电路和RSFQ T触发器。 可以使用T触发器的二叉树布置来提供参考信号的同相和正交相位分割副本。 混合元件可以是XOR电路，用作多路复用器的双端口NDRO电路或用作AND门的RS型NDRO。 RSFQ逻辑元件利用在超导温度域中工作的约瑟夫逊结。
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公开(公告)号：US08260143B2
公开(公告)日：2012-09-04
申请号：US12403326
申请日：2009-03-12
申请人： Deepnarayan Gupta , Oleg Mukhanov
发明人： Deepnarayan Gupta , Oleg Mukhanov
IPC分类号： H04B10/00
CPC分类号： H04B10/25752 , H04B10/2575 , H04B10/40 , H04B10/5561 , H04B10/697 , H04L27/2096
摘要： A transceiver architecture for wireless base stations wherein a broadband radio frequency signal is carried between at least one tower-mounted unit and a ground-based unit via optical fibers, or other non-distortive media, in either digital or analog format. Each tower-mounted unit (for both reception and transmission) has an antenna, analog amplifier and an electro-optical converter. The ground unit has ultrafast data converters and digital frequency translators, as well as signal linearizers, to compensate for nonlinear distortion in the amplifiers and optical links in both directions. In one embodiment of the invention, at least one of the digital data converters, frequency translators, and linearizers includes superconducting elements mounted on a cryocooler.
摘要翻译： 一种用于无线基站的收发机架构，其中宽带射频信号通过光纤或数字或模拟格式的光纤或其他非失真媒介在至少一个塔式安装单元和基于地面的单元之间承载。 每个塔式装置（用于接收和传输）都具有天线，模拟放大器和电光转换器。 地面单元具有超快数据转换器和数字频率转换器以及信号线性化器，以补偿放大器和光学链路在两个方向上的非线性失真。 在本发明的一个实施例中，至少一个数字数据转换器，频率转换器和线性化器包括安装在低温冷却器上的超导元件。
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公开(公告)号：US08867931B2
公开(公告)日：2014-10-21
申请号：US13602474
申请日：2012-09-04
申请人： Deepnarayan Gupta , Oleg Mukhanov
发明人： Deepnarayan Gupta , Oleg Mukhanov
IPC分类号： H04B10/2575 , H04L27/20
CPC分类号： H04B10/25752 , H04B10/2575 , H04B10/40 , H04B10/5561 , H04B10/697 , H04L27/2096
摘要： A transceiver architecture for wireless base stations wherein a broadband radio frequency signal is carried between at least one tower-mounted unit and a ground-based unit via optical fibers, or other non-distortive media, in either digital or analog format. Each tower-mounted unit (for both reception and transmission) has an antenna, analog amplifier and an electro-optical converter. The ground unit has ultrafast data converters and digital frequency translators, as well as signal linearizers, to compensate for nonlinear distortion in the amplifiers and optical links in both directions. In one embodiment of the invention, at least one of the digital data converters, frequency translators, and linearizers includes superconducting elements mounted on a cryocooler.
摘要翻译： 一种用于无线基站的收发机架构，其中宽带射频信号通过光纤或数字或模拟格式的光纤或其他非失真媒介在至少一个塔式安装单元和基于地面的单元之间承载。 每个塔式装置（用于接收和传输）都具有天线，模拟放大器和电光转换器。 地面单元具有超快数据转换器和数字频率转换器以及信号线性化器，以补偿放大器和光学链路在两个方向上的非线性失真。 在本发明的一个实施例中，至少一个数字数据转换器，频率转换器和线性化器包括安装在低温冷却器上的超导元件。
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公开(公告)号：US20120328301A1
公开(公告)日：2012-12-27
申请号：US13602516
申请日：2012-09-04
申请人： Deepnarayan Gupta , Oleg Mukhanov
发明人： Deepnarayan Gupta , Oleg Mukhanov
CPC分类号： H04B10/25752 , H04B10/2575 , H04B10/40 , H04B10/5561 , H04B10/697 , H04L27/2096
摘要： A transceiver architecture for wireless base stations wherein a broadband radio frequency signal is carried between at least one tower-mounted unit and a ground-based unit via optical fibers, or other non-distortive media, in either digital or analog format. Each tower-mounted unit (for both reception and transmission) has an antenna, analog amplifier and an electro-optical converter. The ground unit has ultrafast data converters and digital frequency translators, as well as signal linearizers, to compensate for nonlinear distortion in the amplifiers and optical links in both directions. In one embodiment of the invention, at least one of the digital data converters, frequency translators, and linearizers includes superconducting elements mounted on a cryocooler.
摘要翻译： 一种用于无线基站的收发机架构，其中宽带射频信号通过光纤或数字或模拟格式的光纤或其他非失真媒介在至少一个塔式安装单元和基于地面的单元之间承载。 每个塔式装置（用于接收和传输）都具有天线，模拟放大器和电光转换器。 地面单元具有超快数据转换器和数字频率转换器以及信号线性化器，以补偿放大器和光学链路在两个方向上的非线性失真。 在本发明的一个实施例中，至少一个数字数据转换器，频率转换器和线性化器包括安装在低温冷却器上的超导元件。
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公开(公告)号：US20090232510A1
公开(公告)日：2009-09-17
申请号：US12403329
申请日：2009-03-12
CPC分类号： H04B10/25752 , H04B10/2575 , H04B10/40 , H04B10/5561 , H04B10/697 , H04L27/2096
摘要： A transceiver architecture for wireless base stations wherein a broadband radio frequency signal is carried between at least one tower-mounted unit and a ground-based unit via optical fibers, or other non-distortive media, in either digital or analog format. Each tower-mounted unit (for both reception and transmission) has an antenna, analog amplifier and an electro-optical converter. The ground unit has ultrafast data converters and digital frequency translators, as well as signal linearizers, to compensate for nonlinear distortion in the amplifiers and optical links in both directions. In one embodiment of the invention, at least one of the digital data converters, frequency translators, and linearizers includes superconducting elements mounted on a cryocooler.
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公开(公告)号：US09020362B2
公开(公告)日：2015-04-28
申请号：US13602516
申请日：2012-09-04
申请人： Deepnarayan Gupta , Oleg Mukhanov
发明人： Deepnarayan Gupta , Oleg Mukhanov
CPC分类号： H04B10/25752 , H04B10/2575 , H04B10/40 , H04B10/5561 , H04B10/697 , H04L27/2096
摘要： A transceiver architecture for wireless base stations wherein a broadband radio frequency signal is carried between at least one tower-mounted unit and a ground-based unit via optical fibers, or other non-distortive media, in either digital or analog format. Each tower-mounted unit (for both reception and transmission) has an antenna, analog amplifier and an electro-optical converter. The ground unit has ultrafast data converters and digital frequency translators, as well as signal linearizers, to compensate for nonlinear distortion in the amplifiers and optical links in both directions. In one embodiment of the invention, at least one of the digital data converters, frequency translators, and linearizers includes superconducting elements mounted on a cryocooler.
摘要翻译： 一种用于无线基站的收发机架构，其中宽带射频信号通过光纤或数字或模拟格式的光纤或其他非失真媒介在至少一个塔式安装单元和基于地面的单元之间承载。 每个塔式装置（用于接收和传输）都具有天线，模拟放大器和电光转换器。 地面单元具有超快数据转换器和数字频率转换器以及信号线性化器，以补偿放大器和光学链路在两个方向上的非线性失真。 在本发明的一个实施例中，至少一个数字数据转换器，频率转换器和线性化器包括安装在低温冷却器上的超导元件。
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