公开(公告)号：US20240053393A1

公开(公告)日：2024-02-15

申请号：US17766248

申请日：2020-10-13

申请人： Photonic Systems, Inc.

发明人： Charles H. Cox ,  Thomas Warner

IPC分类号： G01R29/02 ,  G01R15/00

CPC分类号： G01R29/02 ,  G01R15/005

摘要： A method for extended-pulse sampling includes providing a continuous-time signal comprising a frequency spectrum within a predetermined passband. The continuous time signal is sampled with a plurality of discrete sample pulses having a pulse shape in a time domain that is an impulse response of a filter having the predetermined passband. The plurality of discrete time samples of the continuous-time signal is then provided to an output.

公开(公告)号：US10651943B2

公开(公告)日：2020-05-12

申请号：US15655277

申请日：2017-07-20

申请人： Photonic Systems, Inc.

发明人： Edward I. Ackerman ,  Gary E. Betts ,  Charles H. Cox

IPC分类号： H04B10/50 ,  G02F1/01 ,  H04B10/54 ,  G02F1/225 ,  H04B10/564 ,  H04B10/588

摘要： A linearized electro-optic modulator includes a substrate comprising a first Mach Zehnder interferometer comprising a first and second optical waveguide and a second Mach Zehnder interferometer comprising a first and a second optical waveguide. A signal electrode is positioned on the substrate to receive a modulation signal. First and second ground electrodes are positioned on the substrate and are electrically connected to ground potential. The signal electrode and the first and second ground electrodes are positioned so that an electric field generated by the signal electrode modulates both the first and second Mach Zehnder interferometers to generate a first and a second linearized modulated optical signal.

公开(公告)号：US10514588B2

公开(公告)日：2019-12-24

申请号：US15944042

申请日：2018-04-03

申请人： Photonic Systems, Inc.

发明人： Gary E. Betts ,  Charles H. Cox

IPC分类号： H03M1/00 ,  G02F7/00 ,  H03M1/12

摘要： A photonically-sampled electronically-quantized analog-to-digital converter generates an optical signal comprising a series of optical pulses. The optical signal is split into a first and a second optical path. The split optical signal is detected in the first path and then the detected optical signal is converted to a reference digital signal. The split optical signal in the second path is modulated with an input RF signal and a plurality of demultiplexed RF-modulated optically-sampled signals is generated from the modulated optical signal. The plurality of demultiplexed RF-modulated optically-sampled signals is then pulse broadened, detected, and converted to a plurality of sampled-RF digital signals. The reference digital signal and the plurality of sampled-RF digital signals are digital signal processed to generate a digital representation of the input RF signal.

公开(公告)号：US20190229779A1

公开(公告)日：2019-07-25

申请号：US16249390

申请日：2019-01-16

申请人： Photonic Systems, Inc.

发明人： Charles H. Cox

IPC分类号： H04B7/0417 ,  H04B7/06 ,  H04L5/14

摘要： A multiple-input multiple output transmit and receive system includes a first antenna that transmits a first signal at a channel frequency that propagates in a first path and that simultaneously receives a pilot signal at the channel frequency with the transmitting the first signal at the channel frequency, where the pilot signal propagates in a second path. A single-channel duplex transmit-receive system is coupled to an output of the first antenna. A processor is coupled to an output of the single-channel duplex transmit-receive system and configured to determine channel state information of the first path at the channel frequency using the received pilot signal.

公开(公告)号：US10148007B2

公开(公告)日：2018-12-04

申请号：US15173146

申请日：2016-06-03

申请人： Photonic Systems, Inc.

发明人： Charles H. Cox ,  Edward I. Ackerman

IPC分类号： H01Q1/52

摘要： An electromagnetic field optimization apparatus providing a means of more independently modifying the field in either the reactive near-field region or the far-field region while having significantly less modification to the other field. This means that a design to affect the real component of the impedance that affects the radiation in the far-field region does not affect, or minimally affects, the reactive component of the impedance that affects the field in the reactive near-field region.

公开(公告)号：US20170117241A1

公开(公告)日：2017-04-27

申请号：US14920197

申请日：2015-10-22

申请人： International Business Machines Corporation

发明人： Brian M. Erwin ,  Brittany L. Hedrick ,  Nicholas A. Polomoff ,  TaeHo Kim ,  Matthew E. Souter

IPC分类号： H01L23/00

CPC分类号： H01L24/11 ,  H01L24/03 ,  H01L24/05 ,  H01L24/13 ,  H01L2224/03632 ,  H01L2224/0381 ,  H01L2224/0382 ,  H01L2224/04105 ,  H01L2224/05647 ,  H01L2224/11009 ,  H01L2224/11632 ,  H01L2224/1181 ,  H01L2224/1182 ,  H01L2224/131 ,  H01L2224/13147 ,  H01L2224/13686 ,  H01L2924/05042 ,  H01L2924/00014 ,  H01L2924/014 ,  H01L2924/01029 ,  H01L2924/053

摘要： A semiconductor structure includes an electrically conductive structure formed upon an uppermost organic layer of a semiconductor substrate. A capping layer is formed upon the uppermost organic layer covering the electrically conductive structure. A maskless selective removal lasering technique ejects portions of the capping layer while retaining the portion of the capping layer covering the electrically conductive structure. Portions of the capping layer are ejected from the uppermost organic layer by a shockwave as a result of the laser beam vaporizing the uppermost organic layer of the semiconductor substrate. Portions of the capping layer contacting the electrically conductive structure are retained by the conductive structure dissipating heat from the laser that would otherwise vaporize the uppermost organic layer of the semiconductor substrate.

公开(公告)号：US20160359228A1

公开(公告)日：2016-12-08

申请号：US15173146

申请日：2016-06-03

申请人： Photonic Systems, Inc.

发明人： Charles H. Cox ,  Edward I. Ackerman

IPC分类号： H01Q1/52

CPC分类号： H01Q1/52

摘要： An electromagnetic field optimization apparatus providing a means of more independently modifying the field in either the reactive near-field region or the far-field region while having significantly less modification to the other field. This means that a design to affect the real component of the impedance that affects the radiation in the far-field region does not affect, or minimally affects, the reactive component of the impedance that affects the field in the reactive near-field region.

摘要翻译： 一种电磁场优化装置，其提供了在反应性近场区域或远场区域中更独立地修改场的装置，同时对另一场具有显着较少的修改。 这意味着影响影响远场区域辐射的阻抗的实际分量的设计不影响或最小程度地影响影响反应性近场区域中的场的阻抗的无功分量。

公开(公告)号：US09209840B2

公开(公告)日：2015-12-08

申请号：US14455233

申请日：2014-08-08

申请人： Photonic Systems, Inc.

发明人： Charles H. Cox

IPC分类号： H04B1/04 ,  H04B1/525

CPC分类号： H04B1/0458 ,  H04B1/525

摘要： A simultaneous transmit and receive (STAR) system includes a first bidirectional signal port coupled to an antenna, a second port coupled to a transmit signal path, and a third port coupled to receive signal path. A first switch is electrically connected between the first port and the second port, where a transmit signal propagating in the transmit signal path passes through the first switch when closed and then through the first bidirectional signal port to the antenna where the transmit signal is radiated by the antenna. A second switch is connected between the first port and the third port, where a receive signal is received by the antenna and passes through the bidirectional signal port and then through the second switch when closed to the receive signal path. A controller is electrically connected to a control input of each of the first and second switches.

摘要翻译： 同时发射和接收（STAR）系统包括耦合到天线的第一双向信号端口，耦合到发射信号路径的第二端口和耦合到接收信号路径的第三端口。 第一开关电连接在第一端口和第二端口之间，其中在发送信号路径中传播的发送信号在关闭时通过第一开关，然后通过第一双向信号端口传送到发射信号被辐射的天线 天线。 第二开关连接在第一端口和第三端口之间，其中接收信号由天线接收并通过双向信号端口，然后在接收信号路径闭合时通过第二开关。 控制器电连接到第一和第二开关中的每一个的控制输入。

公开(公告)号：US20150207537A1

公开(公告)日：2015-07-23

申请号：US14417122

申请日：2013-07-30

申请人： Charles H. Cox ,  Edward I. Ackerman ,  Photonic Systems, Inc.

发明人： Charles H. Cox ,  Edward I. Ackerman

IPC分类号： H04B1/525 ,  H04L5/14 ,  H04B1/44

CPC分类号： H04B1/525 ,  H04L5/1461

摘要： A same-aperture any-frequency simultaneously transmit and receive (STAR) system includes a signal connector having a first port electrically coupled to an antenna, a second port electrically coupled to a transmit signal path, and a third port electrically coupled to receive signal path. The signal connector passes a transmit signal in the transmit signal path to the antenna and a receive signal in the receive signal path. A signal isolator is positioned in the transmit signal path to remove a residual portion of the receive signal from transmit signal path. An output of the signal isolator provides a portion of the transmit signal with the residual portion of the receive signal removed. A signal differencing device having a first input electrically coupled to the output of the signal isolator and a second input electrically coupled to the third port of the signal connector subtracts a portion of the transmit signal in the receive signal path thereby providing a more accurate receive signal.

摘要翻译： 相同孔径的任何频率同时发射和接收（STAR）系统包括具有电耦合到天线的第一端口，电耦合到发射信号路径的第二端口和电耦合以接收信号路径的第三端口的信号连接器 。 信号连接器将发送信号路径中的发送信号通过天线和接收信号路径中的接收信号。 信号隔离器位于发射信号路径中以从发射信号路径去除接收信号的残余部分。 信号隔离器的输出提供发送信号的一部分，其中接收信号的剩余部分被去除。 具有电耦合到信号隔离器的输出的第一输入和电耦合到信号连接器的第三端口的第二输入的信号差分装置在接收信号路径中减去发射信号的一部分，从而提供更准确的接收信号 。

公开(公告)号：US08755750B2

公开(公告)日：2014-06-17

申请号：US12785437

申请日：2010-05-22

申请人： Charles H. Cox ,  Kevin M. Cuomo

发明人： Charles H. Cox ,  Kevin M. Cuomo

IPC分类号： H04B1/00 ,  H04B15/00

CPC分类号： H04B1/12 ,  H04B1/525 ,  H04B10/6973

摘要： A signal canceller includes a dual-drive electro-optic modulator having separate first and second electrical inputs. The first electrical input is coupled to a first portion of a first signal and the second electrical input is coupled to a second signal and to a second portion of the first signal. A laser generates an optical beam that propagates from the optical input to an optical output of the electro-optic modulator. The dual-drive electro-optic modulator modulates the optical beam with the first and second portions of the first signal and with the second signal. The modulation cancels at least some the first signal and generates a modulation signal with reduced first signal modulation component.

摘要翻译： 信号消除器包括具有单独的第一和第二电输入的双驱动电光调制器。 第一电输入耦合到第一信号的第一部分，第二电输入耦合到第二信号和第一信号的第二部分。 激光器产生从光输入传播到光电调制器的光输出的光束。 双驱动电光调制器利用第一信号的第一和第二部分和第二信号来调制光束。 该调制至少抵消了一些第一信号，并且产生具有减小的第一信号调制分量的调制信号。