公开(公告)号：USD563402S1

公开(公告)日：2008-03-04

申请号：US29279069

申请日：2007-04-19

申请人： Keir Tomasso ,  Joseph E. D'Ottavi

设计人： Keir Tomasso ,  Joseph E. D'Ottavi

公开(公告)号：USD563401S1

公开(公告)日：2008-03-04

申请号：US29279068

申请日：2007-04-19

申请人： Keir Tomasso ,  Joseph E. D'Ottavi

设计人： Keir Tomasso ,  Joseph E. D'Ottavi

公开(公告)号：US07263139B1

公开(公告)日：2007-08-28

申请号：US10646101

申请日：2003-08-22

申请人： Samuel C. Kingston ,  Osama Sami Haddadin ,  William K. McIntire

发明人： Samuel C. Kingston ,  Osama Sami Haddadin ,  William K. McIntire

IPC分类号： H03D3/24 ,  H03D3/00 ,  H04L27/22

CPC分类号： H04L27/2272 ,  H04L7/0054 ,  H04L7/0083 ,  H04L2027/0055

摘要： A circuit and method for correcting phase of a received phase modulated (PM) signal. The method uses k most recently received data bits, which alternate between in-phase I and quadrature Q bits, as an address for a lookup table 60. The lookup table outputs a phase figure 62 derived from a reconstructed waveform. When the most recent k bit is a Q bit, the complement 68 of the phase figure 62 is calculated to yield a phase correction. Otherwise, the phase figure is the phase correction, which is applied to adjust the phase of a delayed version of the received signal. The delayed, phase adjusted signal is then applied to correct the phase of a received signal. The circuit splits an input PM signal in parallel between a matched filter 54 and a delay block 76, 88. The matched filter output provides the input to a register 58 for storing the k data bits. The delay block holds the PM signal until it is input into a loop phase shifter 78 synchronously with the phase correction. The output of the loop phase filter is input, after filtering, to a primary phase shifter 52 that adjusts phase of a received PM signal.

摘要翻译： 一种用于校正接收相位调制（PM）信号的相位的电路和方法。 该方法使用k个最近接收的数据位，其在同相I和正交Q位之间交替，作为查找表60的地址。 查找表输出从重构波形得出的相位图62。 当最近的k位是Q位时，相位图62的补码68被计算以产生相位校正。 否则，相位图是相位校正，其用于调整接收信号的延迟版本的相位。 然后施加延迟的相位调整信号以校正接收信号的相位。 电路将输入PM信号并入匹配滤波器54和延迟块76,88之间。 匹配滤波器输出将输入提供给寄存器58以存储k个数据位。 延迟块保持PM信号，直到其与相位校正同步地输入到环路移相器78中。 滤波后的环路相位滤波器的输出被输入到调整接收到的PM信号的相位的主移相器52。

公开(公告)号：US07220621B2

公开(公告)日：2007-05-22

申请号：US10968588

申请日：2004-10-19

申请人： Athanasios J. Syllaios ,  Roland W. Gooch ,  Thomas R. Schimert ,  Edward G. Meissner

发明人： Athanasios J. Syllaios ,  Roland W. Gooch ,  Thomas R. Schimert ,  Edward G. Meissner

IPC分类号： H01L21/44 ,  H01L21/30

CPC分类号： G02B1/118 ,  B81B7/00

摘要： A method for manufacturing optically-transparent lids includes etching sub-wavelength structures on a surface of a lid wafer. The structures may be arrayed in a hexagonally closed-packed pattern.

摘要翻译： 用于制造光学透明盖的方法包括在盖晶片的表面上蚀刻亚波长结​​构。 结构可以排列成六边形封闭图案。

公开(公告)号：US20070057611A1

公开(公告)日：2007-03-15

申请号：US11531196

申请日：2006-09-12

申请人： Richard True ,  Lucas Behnke ,  Keith Montgomery

发明人： Richard True ,  Lucas Behnke ,  Keith Montgomery

IPC分类号： H01K1/58 ,  H01J29/88

CPC分类号： H01J23/06

摘要： An electron gun comprises a shell having distal and proximal ends, a cathode structure disposed within the shell and having an electron emitting surface, an anode physically coupled to the shell at the distal end and spaced a fixed distance from the emitting surface, and a plurality of leads adapted to apply a voltage to the cathode structure with respect to the anode sufficient to cause emission of the electrons from the emitting surface. The anode has an aperture for passage therethrough of the beam of electrons emitted by the emitting surface. A first insulator is disposed within the shell proximal to the cathode structure. The first insulator has plural apertures having respective sizes in relation to corresponding ones of the plurality of leads such that the plurality of leads pass therethrough without contacting the first insulator. The first insulator provides stand-off for the voltage between the anode and cathode. A second insulator is disposed with the shell proximal from the first insulator. The second insulator also has plural apertures permitting the plurality of leads to pass therethrough; however, the plurality of leads are tightly engaged within corresponding ones of the plural apertures of the second insulator to provide a vacuum barrier of the shell. A thermal choke is coupled between the first insulator and second insulator to provide an indirect thermal path therebetween.

摘要翻译： 电子枪包括具有远端和近端的壳体，设置在壳体内并具有电子发射表面的阴极结构，在远端物理耦合到外壳并与发射表面间隔一定距离的阳极，以及多个 的引线适于相对于阳极向阴极结构施加足以引起来自发射表面的电子的电压。 阳极具有用于穿过由发射表面发射的电子束的孔。 第一绝缘体设置在靠近阴极结构的壳体内。 第一绝缘体具有多个孔，其相对于多个引线中的相应引线具有相应的尺寸，使得多个引线不通过第一绝缘体而通过。 第一绝缘体提供阳极和阴极之间的电压的间隔。 第二绝缘体设置成与壳体靠近第一绝缘体。 第二绝缘体还具有允许多根引线通过的多个孔; 然而，多个引线紧密地接合在第二绝缘体的多个孔的对应的引线内，以提供壳的真空阻挡层。 热扼流器耦合在第一绝缘体和第二绝缘体之间以在它们之间提供间接热路径。

公开(公告)号：US07164733B1

公开(公告)日：2007-01-16

申请号：US10273929

申请日：2002-10-17

申请人： Dan M. Griffin ,  Randal R. Sylvester

发明人： Dan M. Griffin ,  Randal R. Sylvester

IPC分类号： H04L27/00

CPC分类号： H04L27/227 ,  H04L2027/003 ,  H04L2027/0055 ,  H04L2027/0067

摘要： A method and system for compensating digital data demodulation phase uncertainty is provided. The method includes the steps of identifying a phase reference quadrant, the phase reference quadrant having a phase reference axis and four quadrants, I, II, III, and IV; receiving known digital data; and forming a phase vector from the known digital data, determining which quadrant the phase vector is located in and rotating the phase vector to the phase reference quadrant if it is determined that the phase vector is not located in the phase reference quadrant. The last step generates a phase error signal proportional to the resulting angle by rotating the phase vector −45° and measuring the resulting angle between the phase vector and the phase reference axis.

摘要翻译： 提供了一种用于补偿数字数据解调相位不确定性的方法和系统。 该方法包括以下步骤：识别相位参考象限，相位参考象限具有相位参考轴和四个象限I，II，III和IV; 接收已知的数字数据; 以及如果确定相位矢量不位于相位参考象限中，则从已知的数字数据形成相位矢量，确定相位矢量所在的象限，并将相位矢量旋转到相位参考象限。 最后一步通过旋转相位矢量-45°并测量相位矢量和相位参考轴之间产生的角度，产生与所得到的角度成比例的相位误差信号。

公开(公告)号：US07151469B2

公开(公告)日：2006-12-19

申请号：US11074585

申请日：2005-03-08

申请人： Oscar Gomez ,  Kemp Alan Mednick

发明人： Oscar Gomez ,  Kemp Alan Mednick

IPC分类号： G08B21/00

CPC分类号： G08B13/1965 ,  B64D45/0015 ,  B64D2045/0035 ,  G08B13/19645 ,  H04N7/181

摘要： A surveillance system for monitoring activity within at least the cabin portion of the aircraft in order to alert the flight crew within the cockpit of any emergency activity including, but not limited to, highjacking or terrorist activity. A video controller assembly is interconnected between a viewing assembly and a display assembly so as to distribute image data there between. The viewing assembly includes one or more cameras disposed to selectively capture images throughout the aircraft cabin interior and deliver the captured image data to the display assembly observable by the flight crew. Activation of the system is accomplished by controlled operation of one or more portable, wireless transmitters and at least one receiver which is operationally connected to the viewing assembly and the display assembly.

摘要翻译： 一种监视系统，用于监视飞机至少舱室部分内的活动，以便提醒驾驶舱内的飞行机组人员进行任何紧急活动，包括但不限于高空劫持或恐怖活动。 视频控制器组件在观看组件和显示组件之间互连，以便在其间分布图像数据。 观看组件包括一个或多个照相机，其设置成选择性地捕获整个飞机机舱内部的图像，并将捕获的图像数据传送到由飞行机组人员可观察到的显示组件。 系统的激活是通过一个或多个便携式无线发射器和至少一个操作地连接到观察组件和显示组件的接收器的受控操作实现的。

公开(公告)号：US07133440B1

公开(公告)日：2006-11-07

申请号：US10280167

申请日：2002-10-25

申请人： Lyman D. Horne ,  Delon Jones ,  Samuel Kingston ,  Steven Perkins

发明人： Lyman D. Horne ,  Delon Jones ,  Samuel Kingston ,  Steven Perkins

IPC分类号： H04B1/69 ,  H04B7/216

CPC分类号： H04B1/707 ,  H04B1/7075 ,  H04B1/7087

摘要： A method and system for open-loop acquisition of a pseudo-noise (PN) encoded QPSK burst signal is provided. The method includes the steps of determining a PN correlation accumulation (PNCA) threshold and a sync threshold. Searching for a burst signal synchronization by searching a burst preamble for a sync word exceeding the sync threshold. In response to detecting the sync word, performing a PNCA of at least 256 bits following the detected sync word and comparing the PNCA of the at least 256 bits with the PNCA threshold. The comparison further includes the step of verifying that the PNCA of the 256 bits following the detected sync word exceeds the PNCA threshold and then verifying sync word detection. Next, using the burst preamble an estimate of carrier signal frequency is determined; and using a subsequent burst preamble carrier signal frequency and carrier signal phase is determined.

摘要翻译： 提供了一种用于开环获取伪噪声（PN）编码的QPSK突发信号的方法和系统。 该方法包括确定PN相关累积（PNCA）阈值和同步阈值的步骤。 通过搜索突发前导码来搜索超过同步阈值的同步字搜索突发信号同步。 响应于检测到同步字，在检测到的同步字之后执行至少256位的PNCA，并将至少256位的PNCA与PNCA阈值进行比较。 比较还包括验证检测到的同步字之后的256位的PNCA超过PNCA阈值，然后验证同步字检测的步骤。 接下来，使用脉冲串前导码确定载波信号频率的估计; 并且确定使用随后的突发前同步码载波信号频率和载波信号相位。

公开(公告)号：US07126982B1

公开(公告)日：2006-10-24

申请号：US09620888

申请日：2000-07-21

申请人： Steven T. Barham ,  Samuel Kingston ,  Randal R. Sylvester ,  Ronald Leahy

发明人： Steven T. Barham ,  Samuel Kingston ,  Randal R. Sylvester ,  Ronald Leahy

IPC分类号： H04B1/69 ,  H04B1/707 ,  H04B1/713

CPC分类号： H04B1/70751 ,  H04B1/70735 ,  H04B1/7077

摘要： An apparatus and method of determining a signal code. The method comprising steps of acquiring and correlating a signal with a first code sequence. In response to the correlation of the signal with a first code sequence a timing lock is achieved. Also in response to the signal correlation, an acknowledgement from a receiver of the signal to a transmitter of the signal is sent where upon the receiver and transmitter change to a second code sequence.

摘要翻译： 一种确定信号码的装置和方法。 该方法包括以下步骤：获取信号与第一代码序列相关联。 响应于信号与第一代码序列的相关性，实现定时锁定。 同样响应于信号相关，发送信号的接收机对信号的发射机的确认，其中接收机和发射机改变为第二码序列。

公开(公告)号：US07102832B2

公开(公告)日：2006-09-05

申请号：US10458879

申请日：2003-06-10

申请人： Alexander L. Kormos ,  Paul D. Felts

发明人： Alexander L. Kormos ,  Paul D. Felts

IPC分类号： G02B9/00

CPC分类号： G02B7/008 ,  G02B26/04

摘要： A chopper for an imaging system includes a frame and a sheet that have different coefficients of thermal expansion. The frame has a space within it, and has at least one opening that allows radiation to pass through the space. The sheet has structure which influences radiation passing through the sheet, and the sheet is movably disposed within the space in the frame, in a manner so that the sheet can expand and contract relative to the frame in a direction approximately parallel to the sheet. The frame prevents any significant movement of the sheet in a direction transverse to the sheet.

摘要翻译： 用于成像系统的斩波器包括具有不同热膨胀系数的框架和片材。 框架内部具有一个空间，并且具有允许辐射通过该空间的至少一个开口。 片材具有影响通过片材的辐射的结构，并且片材可移动地设置在框架的空间内，使得片材能够在大致平行于片材的方向上相对于框架膨胀和收缩。 框架防止片材在横向于片材的方向上的任何显着移动。