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1. 发明公开

EP1782562A2 A PRIVATE AND SECURE OPTICAL COMMUNICATION SYSTEM USING AN OPTICAL TAPPED DELAY LINE 审中-公开
标题翻译：用光学抽头延迟线的隐私与安全光通信系统
公开(公告)号：EP1782562A2
公开(公告)日：2007-05-09
申请号：EP04778329.5
申请日：2004-07-15
申请人： ESSEX CORPORATION
发明人： TURPIN, Terry, M.
IPC分类号： H04J14/02
CPC分类号： H04B10/85 , G02B6/2861 , G02B6/29358 , H04K1/04
摘要： A method and apparatus for secure transmission of an information-containing optical signal. An optical signal is divided into a first plurality of sub-bands. Each of the sub-bands is modified to encrypt the information contained in the optical signal. The modified sub-bands are combined into a combined optical signal. The combined optical signal is divided into a second plurality of sub-bands. Each of the second plurality of sub-bands is modified to decrypt the previously encrypted information contained in the optical signal.

2. 发明授权

EP1346249B1 OPTICAL TAPPED DELAY LINE 有权
标题翻译：光时符合水龙头
公开(公告)号：EP1346249B1
公开(公告)日：2007-04-25
申请号：EP01984116.2
申请日：2001-06-01
申请人： ESSEX CORPORATION
发明人： TURPIN, Terry, M. , FROEHLICH, Fred, F. , NICHOLS, Bruce, D.
IPC分类号： G02B27/14 , G02B6/42 , H04J14/02
CPC分类号： G02B6/2938 , G02B6/2861 , G02B6/29358
摘要： An OTDL device in accordance with the present invention is a method for and device for spatially resolving the wavelengths in an optical signal, i.e., channelizing or demultiplexing. The device is based on a tapped optical delay line.

3. 发明公开

EP1354438A2 OPTICAL PROCESSOR ENHANCED RECEIVER ARCHITECTURE (OPERA) 审中-公开
标题翻译： BY改进的光学PROCESSOR接收机架构（OPERA）
公开(公告)号：EP1354438A2
公开(公告)日：2003-10-22
申请号：EP01983270.8
申请日：2001-06-01
申请人： ESSEX CORPORATION
发明人： TURPIN, Terry, M. , LAFUSE, James, L.
IPC分类号： H04J13/00 , H04B1/707 , G06E3/00
CPC分类号： G06E3/00 , H04B1/7093 , H04B1/7103 , H04J14/005
摘要： A method and apparatus for enhancing the receiving and information identification functions of multiple access communications systems by employing one or more optical processors configured as a bank of 1-D correlators. The present invention is particularly useful in a DS/SS CDMA communications system, resulting in a multiuser CDMA system that approaches carrier to noise performance (C/N) as opposed to being limited by multiple access interference (MAI). The correlators are arranged in parallel to detect and/or demodulate the received signal, in conjunction with one or more complex algorithms to perform near-optimum multiuser detection, perform multipath combining and/or perform carrier Doppler compensation. An improved receiver in accordance with the present invention comprises means for receiving a plurality of signals transmitted through a communications channel; signal conversion means for converting the received signals into a form suitable for input to the multichannel correlator; a multichannel optical correlator for identifying the presence of particular waveforms and estimating the relative time delay or delays, carrier frequency offset from expected, RF amplitude and RF phase for each received spread spectrum waveform present in the received plurality of signals; a controller for determining and providing to the optical correlator the appropriate set of reference hypotheses; and one or more receiver algorithms depending on the exact receiver function to be performed.

4. 发明公开

EP1346249A2 OPTICAL TAPPED DELAY LINE 有权
标题翻译：光时符合水龙头
公开(公告)号：EP1346249A2
公开(公告)日：2003-09-24
申请号：EP01984116.2
申请日：2001-06-01
申请人： ESSEX CORPORATION
发明人： TURPIN, Terry, M. , FROEHLICH, Fred, F. , NICHOLS, Bruce, D.
IPC分类号： G02B27/14 , G02B6/42 , H04J14/02
CPC分类号： G02B6/2938 , G02B6/2861 , G02B6/29358
摘要： An OTDL device in accordance with the present invention is a method for and device for spatially resolving the wavelengths in an optical signal, i.e., channelizing or demultiplexing. The device is based on a tapped optical delay line.

5. 发明授权

EP0617797B1 IMAGE SYNTHESIS USING TIME SEQUENTIAL HOLOGRAPHY 失效
标题翻译：与时间序列HOLOGRAPHIE图像合成
公开(公告)号：EP0617797B1
公开(公告)日：2001-07-18
申请号：EP93901171.4
申请日：1992-12-17
申请人： ESSEX CORPORATION
发明人： TURPIN, Terry, M.
IPC分类号： G01S13/89 , G03H5/00
CPC分类号： G01S17/895 , G01S7/20 , G01S7/481 , G01S13/89 , G01S13/9035 , G03H1/00 , G03H3/00 , G03H5/00

6. 发明公开

EP1846801A2 LONG TIME APERTURE OPTICAL TAPPED DELAY LINE 审中-公开
标题翻译：光学抽头长期孔径延迟LINE
公开(公告)号：EP1846801A2
公开(公告)日：2007-10-24
申请号：EP06720190.5
申请日：2006-02-03
申请人： ESSEX CORPORATION
发明人： FROEHLICH, Fred, F.
IPC分类号： G02F2/00 , H04J14/00
CPC分类号： G01J3/26 , G01J3/02 , G01J3/0205 , G01J3/0208 , G01J3/0218 , G02B6/29358 , G02B6/2938 , G02B27/106 , G02B27/1066 , G02B27/123 , G02B27/143 , G02B27/144
摘要： An optical tapped delay line device in accordance with the present invention is a method for and device for spatially resolving the spectral components of an optical signal, i.e., channelizing or spectrum analyzing the wavelength content of an optical signal. The device is based on a tapped optical delay line and enables numerous related optical signal processing functions.

7. 发明公开

EP0543064A1 Sequential image synthesizer 失效
标题翻译：连续图像合成器
公开(公告)号：EP0543064A1
公开(公告)日：1993-05-26
申请号：EP91310736.3
申请日：1991-11-21
申请人： ESSEX CORPORATION
发明人： Turpin, Terry Martin
IPC分类号： G01S13/90
CPC分类号： G01S17/895 , G01S7/20 , G01S7/481 , G01S13/9005 , G01S13/9035 , G03H1/00
摘要： A method and apparatus for producing an image of a target area, by: at an observation location spaced from the target area, transmitting a beam of electromagnetic radiation toward the target area, and receiving reflections of the radiation from the target area; providing a representation of the magnitude and direction of the distance between points on the target area which produce reflections that travel in phase to the observation location; varying the spatial relation between the observation location and the target area and/or the given radiation frequency, in order to establish a plurality of different observation states which succeed one another in time, each state being associated with a distinct combination of magnitude and direction of the distance between points on the target area which produce reflections that travel in phase to the observation location; producing two coherent radiation beams, directing the two beams onto a receiving plane provided with an array of radiation receiving cells and storing output signals from each receiving cell, and controlling the two beams, for each observation state in succession, such that the two collimated beams have: beam axes which are inclined relative to one another by an angle corresponding in magnitude and direction to the magnitude and direction representations; a phase difference corresponding to the phase difference between the transmitted and received radiation; and intensities such that the product of the intensities of the two beams corresponds to the intensity product of the transmitted and received radiation.
摘要翻译：一种用于通过以下步骤产生目标区域的图像的方法和装置：在与目标区域间隔开的观察位置处，朝向目标区域发射电磁辐射束，并接收来自目标区域的辐射的反射; 提供目标区域上的点之间的距离的大小和方向的表示，其产生反射到相位观测位置的反射; 改变观察位置和目标区域之间和/或给定辐射频率之间的空间关系，以便建立在时间上彼此接连的多个不同观察状态，每个状态与量值和方向的不同组合相关联目标区域上产生反射的点之间的距离，这些点反射到观察位置; 产生两个相干辐射束，将两个束引导到设置有辐射接收单元阵列的接收平面上，并存储来自每个接收单元的输出信号，并且对于每个观察状态连续地控制两个束，使得两个准直束具有： - 相对于彼此倾斜了与幅度和方向表示的大小和方向相对应的角度的束轴; 相位差对应于发射和接收的辐射之间的相位差; 和强度，使得两个光束的强度的乘积对应于发射和接收的辐射的强度乘积。

8. 发明公开

EP1099959A3 Image synthesis using time sequential holography 失效
标题翻译：成像时间顺序全息
公开(公告)号：EP1099959A3
公开(公告)日：2001-06-13
申请号：EP01101051.9
申请日：1992-12-17
申请人： ESSEX CORPORATION
发明人： Turpin, Terry M.
IPC分类号： G01S13/89 , G03H5/00
CPC分类号： G01S17/895 , G01S7/20 , G01S7/481 , G01S13/89 , G01S13/9035 , G03H1/00 , G03H3/00 , G03H5/00
摘要： A system (4) for generating an image of an object, comprising a combination of a sensing feature (2) for measuring the spatial component parameters (amplitude, phase, etc.) of the object basis functions that satisfy a Bragg condition, together with an image synthesis feature (16,18) for generating a reconstructed image of the object using the measured parameters of the basis functions. The image reconstruction feature may optically project spatial components (6) (spatial frequencies). The image reconstruction feature may optically record the spatial frequency domain sequentially, then perform a two-dimensional Fourier transform by a variety of methods. The image reconstruction feature is not restricted to optical radiation, and may include projection imaging systems that use other forms of wavelike radiation. The image reconstruction feature does not require purely digital electronic methods for producing a two-dimensional image.

9. 发明公开

EP0617797A1 IMAGE SYNTHESIS USING TIME SEQUENTIAL HOLOGRAPHY 失效
标题翻译：使用时间顺序全息图的图像综合
公开(公告)号：EP0617797A1
公开(公告)日：1994-10-05
申请号：EP93901171.0
申请日：1992-12-17
申请人： ESSEX CORPORATION
发明人： TURPIN, Terry, M.
IPC分类号： G03H1 , G01S7 , G01S13 , G01S15 , G01S17 , G03H3 , G03H5 , G06F17
CPC分类号： G01S17/895 , G01S7/20 , G01S7/481 , G01S13/89 , G01S13/9035 , G03H1/00 , G03H3/00 , G03H5/00
摘要： Système (4) permettant de générer une image d'un objet, comprenant un élément détecteur (2) servant à mesurer les paramètres de composantes spatiales (amplitute, phase, etc.) des fonctions de base de l'objet qui satisfont une condition de Bragg, combiné à un élément de synthèse d'image (16, 18) servant à générer une image reconstruite de l'objet à l'aide des paramètres mesurés des fonctions de base. L'élément de reconstruction d'image peut projeter de manière optique les composantes spatiales (6) (fréquences spatiales). Cet élément de reconstruction d'images peut également enregistrer optiquement et séquentiellement le domaine de fréquence spatiale, puis effectuer une transformation de Fourier bidimensionnelle selon différents procédés. L'élément de reconstruction d'image n'est pas limité au rayonnement optique, et peut comprendre des systèmes d'imagerie par projection qui utilisent d'autres formes de rayonnements analogues à des ondes. Cet élément ne requiert pas l'utilisation de procédés électroniques exclusivement numériques pour produire une image bidimensionnelle.
摘要翻译：系统（4），用于生成一个物体的图像，包括：传感器元件（2），用于测量的对象的基本功能参数（amplitute，相位等）的空间分量满足的条件布拉格结合图像合成元件（16,18），用于使用所测量的基本函数的参数来生成对象的重建图像。图像重建元件可以光学投影空间分量（6）（空间频率）。该图像重建元件还可以光学和顺序地记录空间频率域，然后根据不同的方法执行二维傅立叶变换。图像重建元件不限于光学辐射，并且可以包括利用其他形式的波状辐射的投影成像系统。该元件不需要使用专门的数字电子方法来产生二维图像。

10. 发明公开

EP0616705A1 TIME DELAY BEAM FORMATION 失效
标题翻译：梁的时滞聚焦。
公开(公告)号：EP0616705A1
公开(公告)日：1994-09-28
申请号：EP93901321.0
申请日：1992-12-10
申请人： ESSEX CORPORATION
发明人： GESELL, Leslie, H. , LaFUSE, James, L.
IPC分类号： H01Q3 , G02F2 , G06E3 , H04B10 , G02F1
CPC分类号： H01Q3/2676 , G02F2/002 , G02F2001/212 , G02F2201/20 , G06E3/005
摘要： Systèmes optiques capable de produire et de modifier rapidement les temps de retard de signaux électriques pour la formation de faisceaux et le pointage de faisceaux avec temps de retard vrai. Ces systèmes font appel à une configuration de type interferomètre. Un premier modulateur optique (12) et une lentille de transformée de Fourier (18) définissent un plan de transformée de Fourier dans un premier tronçon de l'interféromètre. Dans un deuxième tronçon de l'interféromètre, un second modulateur optique (28) assure le pointage du faisceau vers un empilement de prismes (30) qui produit une série d'ondes de référence planes présentant toutes les orientations nécessaires pour produire les temps de retard souhaités. Les modulateurs optiques (12,28) sont de préférence des cellules de Bragg. On peut remplacer l'empilement de prismes (30) par un élément optique holographique.

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