公开(公告)号：US06707916B1

公开(公告)日：2004-03-16

申请号：US09270567

申请日：1999-03-16

Applicant: Gregory S. Caso ,  Stuart T. Linsky ,  David A. Wright ,  Donald C. Wilcoxson

Inventor： Gregory S. Caso ,  Stuart T. Linsky ,  David A. Wright ,  Donald C. Wilcoxson

IPC: H04K100

CPC classification number: H04B7/18513

Abstract: A method and apparatus for mitigation of false co-channel uplink reception, also known as show-thru, in an uplink A due to an uplink B at a satellite receiver. The method includes storing multiple scrambling sequences associated with respective individual uplinks, including a scrambling sequence A, receiving uplink A signals at an uplink A receiver, applying scrambling sequence A to the uplink A signals to generate descrambled A data, and then decoding the descrambled A data. The decoding step includes the generation of a decoder failure signal in the event that decoding is unsuccessful, and the method discards the descrambled A data if the decoder failure signal is asserted. Therefore, any show-thru data derived from uplink B will be discarded in the uplink A receiver, and vice versa. The step of applying the scrambling sequence may be effected using an exclusive-or operation.

Abstract translation: 由于在卫星接收机上的上行链路B，在上行链路A中减轻伪同频上行接收（也称为显示）的方法和装置。 该方法包括存储与各个单独上行链路相关联的多个加扰序列，包括加扰序列A，在上行链路A接收机处接收上行链路A信号，向上行链路A信号应用加扰序列A以产生解扰的A数据，然后解码解扰的A 数据。 解码步骤包括在解码不成功的情况下产生解码器故障信号，并且如果解码器故障信号被断言，则该方法丢弃解扰的A数据。 因此，从上行链路B中导出的任何显示数据将在上行链路A接收机中被丢弃，反之亦然。 应用加扰序列的步骤可以使用异或操作来实现。

公开(公告)号：US06603349B2

公开(公告)日：2003-08-05

申请号：US09910162

申请日：2001-07-20

Applicant: Dominic P. Carrozza ,  David A. Wright ,  Reginald Jue

Inventor： Dominic P. Carrozza ,  David A. Wright ,  Reginald Jue

IPC: H03D300

CPC classification number: H03D3/241 ,  H04L27/2332 ,  H04L2027/003 ,  H04L2027/0057

Abstract: The present invention is a demodulator and a method of demodulating burst communications. A demodulator (100, 200) includes a phase angle source (18), coupled to a current received burst communication, which provides a phase angle of the current received burst communication; a comparator (20), coupled to the phase angle source and a source of an estimated phase angle, which provides an output signal representing an angular difference between a phase of the current received burst communication and the estimated phase angle; and a phase lock loop (20), coupled to the output signal, which provides the estimated phase angle. The phase lock loop includes a Doppler accumulator (102) which provides a Doppler output which provides compensation in the estimated phase angle for the Doppler effect produced by relative motion between the demodulator and a source of the burst communications.

Abstract translation: 本发明是一种解调器和解调突发通信的方法。 解调器（100,200）包括相位角源（18），其耦合到当前接收的突发通信，其提供当前接收的突发通信的相位角; 耦合到相位角源的比较器（20）和估计的相位角源，其提供表示当前接收的突发通信的相位与估计的相位角之间的角度差的输出信号; 以及耦合到输出信号的锁相环（20），其提供估计的相位角。 锁相环包括多普勒累加器（102），该多普勒累加器提供多普勒输出，该多普勒输出在由解调器与突发通信源之间的相对运动产生的多普勒效应的估计相位角中提供补偿。

公开(公告)号：US06507926B1

公开(公告)日：2003-01-14

申请号：US09270572

申请日：1999-03-16

Applicant: David A. Wright

Inventor： David A. Wright

IPC: H03M1315

CPC classification number: H04B7/18513

Abstract: The present invention provides a method and apparatus for preventing show-thru (and therefore misinsertion of unintended traffic) among uplink beams transmitted to a satellite. The method includes the steps of selecting (402) an uplink A stagger value, selecting an uplink B stagger value, coding (404) uplink A data to generate coded uplink A data, and coding (406) uplink B data to generate coded uplink B data. Subsequently, the method transmits (412) the coded uplink A data, staggered by the uplink A stagger value, in the uplink A and further transmits (414) the coded uplink B data, staggered by the uplink B stagger value, in the uplink B. During coding (404, 406), the method may use a full length error correcting code capable of correcting t errors. In such a case, the method generally selects an uplink B stagger value differing from the uplink A stagger value by more than t codeword symbols. Alternatively, the method, during coding (404, 406), may use a shortened error correcting code capable of correcting t errors. In such a case, the method generally selects an uplink B stagger value differing from the uplink A stagger value by at least one codeword symbol. The method is not limited to any particular number of uplink beams and may provide staggering for all same color uplink beams in a predetermined reuse pattern, for example.

Abstract translation: 本发明提供了一种用于在发射到卫星的上行链路波束之中防止显示（因此意图误传的非预期业务）的方法和装置。 该方法包括以下步骤：选择（402）上行链路交错值，选择上行链路交错值，编码（404）上行链路A数据以生成编码上行链路A数据，以及编码（406）上行链路B数据以生成编码上行链路B 数据。 随后，该方法在上行链路A中发送（412）由上行链路交错值交错的编码上行链路A数据，并且在上行链路B中进一步发送（414）由上行链路交错值交错的编码上行链路B数据 在编码（404,406）期间，该方法可以使用能够校正t个错误的全长纠错码。 在这种情况下，该方法通常选择与上行链路交错值不同的上行链路B交错值多于t个码字符号。 或者，在编码（404,406）期间，该方法可以使用能够校正t个错误的缩短的纠错码。 在这种情况下，该方法通常选择与上行链路交错值不同的上行链路B交错值至少一个码字符号。 该方法不限于任何特定数量的上行链路波束，并且例如可以以预定的重用模式为所有相同颜色的上行链路提供交错。

公开(公告)号：US06445702B1

公开(公告)日：2002-09-03

申请号：US09169875

申请日：1998-10-12

Applicant: David A. Wright

Inventor： David A. Wright

IPC: H04B7185

CPC classification number: H04B7/26 ,  H04L1/0065 ,  H04L1/0071

Abstract: A method is provided for organizing a plurality of cells into a fixed size frame for transmission in the downlink of a processing satellite (12) to at least one of a plurality of earth terminals (14), comprising the steps of: (a) determining an inner coding rate (22) for a first set of data cells (20); (b) forming a group of codewords by applying an outer code (24) to the first set of data cells (20), such that the number of codewords being proportional to the inner coding rate; (c) entering the group of codewords row wise (26) into an interleaving array; and (d) applying an inner code column wise (28) to the group of codewords, thereby forming a fixed size frame body (30). More specifically, the interleaving area includes a plurality of columns and a plurality of rows, such that the plurality of columns is equivalent to a block size of the outer code and the plurality of rows is equivalent to the number of codewords multiplied by the number of bits for each codeletter in the codewords and then divided by the inner coding rate.

Abstract translation: 提供了一种用于将多个小区组织成固定大小的帧以在处理卫星（12）的下行链路中传输到多个接地终端（14）中的至少一个的方法，包括以下步骤：（a）确定 用于第一组数据单元（20）的内部编码率（22）; （b）通过向第一组数据单元（20）应用外部码（24）形成一组码字，使得码字的数量与内部编码速率成比例; （c）将所述码字组行（26）进入交织阵列; 和（d）将一个内码列（28）应用于码字组，从而形成固定大小的帧体（30）。 更具体地，交织区域包括多个列和多个行，使得多个列等价于外部码的​​块大小，并且多个行等价于码字数乘以 位码，然后除以内编码率。

公开(公告)号：US06236687B1

公开(公告)日：2001-05-22

申请号：US09258846

申请日：1999-02-26

Applicant: Gregory S. Caso ,  David A. Wright ,  Dominic P. Carrozza

Inventor： Gregory S. Caso ,  David A. Wright ,  Dominic P. Carrozza

IPC: H03D318

CPC classification number: H04L1/0057 ,  H04L27/2332 ,  H04L2027/003 ,  H04L2027/0055 ,  H04L2027/0089

Abstract: An improved digital decision directed phase locked loop (DD-PLL) for use with short block codes using phase shifting keying (PSK) modulation. The improvement involves a conventional digital phase lock loop which is modified to base its loop corrections on the results obtained by decoding the short block code rather than on a symbol by symbol basis as is customary in conventional DD-PLLs. The improved method of loop corrections involves retaining the symbol data pending the decoder's decision, derotating the retained data in accordance with the decoded result, and integrating the derotated data to form a composite estimator upon which to base the loop correction. In its preferred embodiment, the invention uses an (8, 4) biorthogonal code with quatenary PSK.

Abstract translation: 改进的数字决策定向锁相环（DD-PLL），用于使用相移键控（PSK）调制的短块码。 该改进涉及传统的数字锁相环，其被修改为将其循环校正基于通过解码短块码获得的结果，而不是按照传统DD-PLL中的惯例的符号依据。 改进的循环校正方法涉及保留符号数据等待解码器的判定，根据解码结果对保留的数据进行解除，并且整合解旋数据以形成基于循环校正的复合估计器。 在其优选实施例中，本发明使用具有四分之一PSK的（8,4）双正交码。

公开(公告)号：US6164244A

公开(公告)日：2000-12-26

申请号：US272478

申请日：1999-03-19

Applicant: Horace G. Cutler ,  Neil A. Belson ,  Rodger Dawson ,  David A. Wright

Inventor： Horace G. Cutler ,  Neil A. Belson ,  Rodger Dawson ,  David A. Wright

IPC: A01K61/00 ,  A01K63/04 ,  A01N35/04 ,  A01K69/00

CPC classification number: A01K63/04 ,  A01N35/04 ,  Y02A40/81

Abstract: A novel method for eliminating or reducing, or otherwise treating, aquatic pests using juglone or juglone analogs is described. The methods are useful for removing zebra mussels and quagga mussels from water intake pipes and various other underwater hard surfaces. In addition, the methods are useful for treating dinoflaggellates, algae and amphipods, among other pests, from ballast water. A great advantage that these methods have over current protocols is that they have low environmental risk.

Abstract translation: 描述了使用胡桃或胡桃类似物消除或减少或以其他方式处理水生害虫的新方法。 这些方法可用于从进水管道和各种其他水下硬质表面去除斑马贻贝和m鱼。 此外，该方法可用于从压载水中处理其他害虫中的海藻糖，藻类和两栖动物。 这些方法具有超过现行协议的巨大优势是它们具有较低的环境风险。

公开(公告)号：US6108691A

公开(公告)日：2000-08-22

申请号：US062098

申请日：1998-04-17

Applicant: Eugene H. Lee ,  Michael Adler ,  Lisa A. Dalton ,  David A. Wright

Inventor： Eugene H. Lee ,  Michael Adler ,  Lisa A. Dalton ,  David A. Wright

IPC: G06Q10/10 ,  G06F13/00

CPC classification number: G06Q10/107

Abstract: A directory service allows a user to receive email messages from senders without requiring the user to reveal his/her email address. The directory service maintains users' email addresses but allows users to restrict the display of their email addresses. The directory service can cause a message to be sent from a sender to a recipient without revealing the recipient's email address.

Abstract translation: 目录服务允许用户从发送者接收电子邮件，而不需要用户显示他/她的电子邮件地址。 目录服务维护用户的电子邮件地址，但允许用户限制其电子邮件地址的显示。 目录服务可以使消息从发送方发送到收件人，而不会泄露收件人的电子邮件地址。

公开(公告)号：US5001842A

公开(公告)日：1991-03-26

申请号：US463140

申请日：1990-01-10

Applicant: David A. Wright ,  Alexander T. Sutherland

Inventor： David A. Wright ,  Alexander T. Sutherland

IPC: G01B21/00 ,  G01B5/00 ,  G01B5/008 ,  G01M99/00 ,  G12B7/00

CPC classification number: G01B5/008 ,  G01B5/0011

Abstract: Apparatus with a multi-axis mechanism to perform, say, measurements or tests, has at least one pair of temperature detectors individually for each of selected members of the mechanism, each pair of temperature detectors being arranged to sense temperature differences transversely across the associated member. The required positions of the temperature detectors are predetermined from a preliminary examination of the mechanism, so that the extent and direction of each predetermined aspect of thermal distortion within the mechanism, can be computed from simultaneously detected transverse temperature differences, employing algorithms devised as a result of the preliminary examination of the mechanism. Compensation for corresponding selected errors in the measurements or tests can be calculated from the computed extent and direction of each of the predetermined aspects of thermal distortion within the mechanism.

Abstract translation: 具有用于执行（例如，测量或测试）的多轴机构的装置具有至少一对温度检测器，其分别针对机构的所选部件中的每一个，每对温度检测器布置成横向穿过相关联的部件感测温差 。 温度检测器的所需位置是从机构的初步检查中预先确定的，以便机构内每个预定方面的热变形的程度和方向可以从同时检测到的横向温度差计算出来，采用采用其设计的算法 的初步审查机制。 可以从机构内的热变形的每个预定方面的计算范围和方向计算测量或测试中相应的选定误差的补偿。

公开(公告)号：US4593815A

公开(公告)日：1986-06-10

申请号：US703528

申请日：1985-02-20

Applicant: David A. Wright

Inventor： David A. Wright

IPC: B64D1/22 ,  B65H49/20 ,  B65H55/04 ,  B65D85/04

CPC classification number: B65H55/04 ,  B64D1/22 ,  B65H49/20

Abstract: A coiled rope providing a securely coiled rope structure which, when forcefully uncoiled, gives rapid yet controlled deployment of the rope, and a method of so coiling the rope. The rope is wound about a central core member in sequential, adjacent, planar circular layers of approximately similar diameter, each layer consisting of a plurality of coils of rope of increasing size commencing from the central core member. Adjacent coils of rope in each layer and adjacent layers of rope are releasably adhered to each other by contact cement so that the rope will remain securely coiled in storage or until required for use, and then permit rapid yet controlled uncoiling of the rope. Such a coiled rope is useful in providing controlled pay out of rope, for example, between life rafts being air dropped to survivors in the sea, the rope being payed out sequentially coil by coil and layer by layer.

Abstract translation: 提供牢固卷绕的绳索结构的盘绕绳索，当强力展开时，可以快速但可控制地展开绳索，以及一种如此卷绕绳索的方法。 绳索绕近似相似直径的顺序，相邻的平面圆形的环绕中心芯部件缠绕，每层由从中心芯部件开始增大的多个绳索线圈组成。 每个层和相邻的绳索层中的绳索的相邻线圈可通过接触粘结剂彼此可释放地粘合，使得绳索将保持牢固地卷绕在储存中或直到使用需要，然后允许快速但受控制地松开绳索。 这种卷绕的绳索可用于提供绳索的控制支付，例如，在救生筏被空气滴落到海中的幸存者之间，绳索按顺序卷绕并逐层地支付。

公开(公告)号：US4523380A

公开(公告)日：1985-06-18

申请号：US524670

申请日：1983-08-19

Applicant: David A. Wright

Inventor： David A. Wright

IPC: G01B11/02 ,  G01B5/00 ,  G01B5/008 ,  G01B11/03 ,  G01B21/00 ,  G01B21/04 ,  G01B21/20

CPC classification number: G01B21/045 ,  G01B5/0009 ,  G01B5/008

Abstract: Measuring apparatus for determining the position of a point in a measuring volume relative to a datum point at which three mutually perpendicular axes intersect, includes a probe member supported for movement within that volume. Errors due to rotations about the various axes are corrected by providing additional transducers on each axis, there being (n+1) transducers where n is the number of rotations for which correction is required. The embodiments described have three X-axis transducers X.sub.1, X.sub.2 and X.sub.3 and three Y-axis transducers Y.sub.1, Y.sub.2 and Y.sub.3 which, with the appropriate circuitry correct for pitch and yaw errors about the two axes. For the Z-axis only two transducers, Z.sub.1 and Z.sub.2, are required. The circuit means combines the various transducer outputs to derive corrected values of the three co-ordinates.