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公开(公告)号：US5724340A
公开(公告)日：1998-03-03
申请号：US382738
申请日：1995-02-02
CPC分类号： H04J13/00 , H04J7/00 , H04J13/0077
摘要： Apparatus and method are provided for adaptively modulating or combining a first signal with a second signal. A series of values of the first signal are taken and sequentially stored in a shift register. The maximum absolute value of the oldest N values (where N is an integer) stored in the shift register is then determined. Before, during or after that determination, the maximum absolute value of the remaining (newer) series of values of the shift register is also determined. The lesser of those two maximum absolute values is then determined. This lesser maximum absolute value is then multiplied by a gain factor representing the desired gain to produce a scale factor. The gain factor can be a preset constant, or can be based on the steady-state ratio of the power of the second signal to the power of the first signal. The second signal is then multiplied by the scale factor to produce a scaled signal. Meanwhile, the first signal has been delayed by an amount representative of the total time duration of the first N values in the shift register, or of the total time needed to obtain those first N values, or of the duration of the portion of the signal represented by those first N values. Considering the two peaks separately, combined with using this delay, in effect enables the resulting amplitude tracking to consider prospective as well as past values of the first signal. The scaled signal is then added to the delayed first signal. The amplitude of the scaled second signal thereby tracks the amplitude of the corresponding portion of the first signal, so that the scaled second signal cannot be readily detected unaided during any relatively low amplitude portion of the first signal.
摘要翻译： 提供了用于自适应地调制或组合第一信号与第二信号的装置和方法。 取第一个信号的一系列值并顺序地存储在移位寄存器中。 然后确定存储在移位寄存器中的最旧的N个值（其中N是整数）的最大绝对值。 在该确定之前，期间或之后，还确定移位寄存器的剩余（较新）系列值的最大绝对值。 然后确定那两个最大绝对值中较小的值。 然后将较小的最大绝对值乘以表示期望增益的增益因子，以产生比例因子。 增益因子可以是预设常数，或者可以基于第二信号的功率与第一信号的功率的稳态比。 然后将第二信号乘以比例因子以产生缩放信号。 同时，第一信号被延迟了代表移位寄存器中的前N个值的总持续时间的量，或者获得这些前N个值所需的总时间，或信号部分的持续时间 由前N个值表示。 考虑到两个峰值分开，结合使用该延迟，实际上使得所得到的幅度跟踪可以考虑第一信号的预期以及过去的值。 然后将缩放的信号添加到延迟的第一信号。 缩放的第二信号的幅度从而跟踪第一信号的对应部分的幅度，使得在第一信号的任何相对较低的振幅部分期间不能容易地检测到缩放的第二信号被无偿地检测。
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公开(公告)号：US5696789A
公开(公告)日：1997-12-09
申请号：US399274
申请日：1995-03-06
CPC分类号： H04B1/707
摘要： A novel code division multiple access (CDMA) system and apparatus is provided which permits a plurality of encoded modulated data messages to be transmitted simultaneously on the same channel in one frequency band as a composite CDMA signal. An identification signal is generated and spread by a spreading signal having a duty cycle less than fifty percent to produce a combined signal which is transmitted to a receiver having a tapped delay with a plurality of taps each of which produce a replica of the received combined signal delayed by an odd multiple of the duty cycle of the spreading signal. Each of the replica signals is multiplied by a predetermined weighted value to produce weighted delayed signals and a controller responsive to the received combined signal, is employed for controlling individual weighted delayed signals which are then combined to suppress the spreading signal leaving the identification signal.
摘要翻译： 提供了一种新颖的码分多址（CDMA）系统和装置，其允许在作为复合CDMA信号的一个频带中的同一信道上同时发送多个编码调制数据消息。 通过占空比小于百分之五十的扩展信号产生并扩展识别信号，以产生组合信号，该组合信号被发送到具有抽头延迟的接收机，多个抽头每个抽头产生接收到的组合信号的副本 延迟了扩展信号占空比的奇数倍。 将每个复制信号乘以预定的加权值以产生加权的延迟信号，并且响应于接收到的组合信号的控制器被用于控制然后被组合的各个加权延迟信号，以抑制离开识别信号的扩展信号。
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公开(公告)号：US5258924A
公开(公告)日：1993-11-02
申请号：US755601
申请日：1991-09-05
CPC分类号： G01S7/4802 , G01S7/412 , G06K9/3241 , G06K9/4609 , G06K9/6218
摘要： An apparatus for detecting the presence of a target in an n-dimensional array of digital data samples comprises: 1) a reading module, which reads the samples from the data array in overlapping groups; 2) a quantizing module, coupled to the reading module, which quantizes each of the overlapping groups of data samples and which generates an index that identifies the quantized group; and 3) a comparing module, coupled to the quantizing module, which compares indexes from the quantizing module to multiple reference indexes, each of which represents a quantized group of data samples that identify a distinctive feature of the target.
摘要翻译： 一种用于检测数字数据样本的n维阵列中的目标的存在的装置包括：1）读取模块，其以重叠的组从数据阵列读取样本; 2）耦合到读取模块的量化模块，其对每个重叠的数据样本组进行量化，并产生识别量化组的索引; 和3）耦合到量化模块的比较模块，其将来自量化模块的指标与多个参考指数进行比较，每个参考指数表示识别目标的独特特征的量化的数据样本组。
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公开(公告)号：USD334381S
公开(公告)日：1993-03-30
申请号：US578103
申请日：1990-09-04
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5.发明授权
公开(公告)号：US4801939A
公开(公告)日：1989-01-31
申请号：US93328
申请日：1987-09-04
申请人： Robert V. Jones
发明人： Robert V. Jones
摘要： Apparatus is provided for compressing unfocused synthetic aperture radar (SAR) phase history pixel data by coupling the complex inphase phase history data output from the SAR to a first converter/compressor which produces compressed scalar log amplitude data and scalar phase pixel data. The output from the first converter/compressor is applied to a series to parallel converting means for converting plural scaler pixel data into vector data representative of a plurality of pixels. The output of the series to parallel conversion means is coupled to a second converter/compressor for converting the plural scalar pixel data into compressed encoded data representative of a plurality of pixels of unfocused SAR phase history data which is transmitted as compressed unfocused phase history data.
摘要翻译： 提供了用于通过将从SAR输出的复数同相相位历史数据耦合到产生压缩标量对数幅度数据和标量相位像素数据的第一转换器/压缩器来压缩未聚焦的合成孔径雷达（SAR）相位历史像素数据的装置。 来自第一转换器/压缩器的输出被应用于串行到并行转换装置，用于将多个定标像素数据转换为表示多个像素的向量数据。 串联到并行转换装置的输出耦合到第二转换器/压缩器，用于将多个标量像素数据转换成压缩编码数据，该压缩编码数据表示以压缩的未聚焦相位历史数据传输的多个未聚焦SAR相位历史数据像素。
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6.发明授权Method, apparatus and system for recovery of a controller with known-compatible configuration and run-time data 有权用于恢复具有已知兼容配置和运行时数据的控制器的方法，装置和系统公开(公告)号：US07546171B2
公开(公告)日：2009-06-09
申请号：US11323469
申请日：2005-12-30
CPC分类号： G05B19/4067 , G05B2219/31333 , G05B2219/50104
摘要： A method includes obtaining current structural information describing a current structure of a process control system and retrieving from a checkpoint file stored structural information describing a previous structure of the process control system. If the current structural information matches the stored structural information, current configuration and operational information of a controller in the process control system is conformed to previous configuration and operational information stored in the checkpoint file.
摘要翻译： 一种方法包括获取描述过程控制系统的当前结构的当前结构信息，并从检查点文件中检索存储的描述过程控制系统的先前结构的结构信息。 如果当前结构信息与所存储的结构信息相匹配，则过程控制系统中的控制器的当前配置和操作信息符合存储在检查点文件中的先前配置和操作信息。
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公开(公告)号：USD340231S
公开(公告)日：1993-10-12
申请号：US792056
申请日：1991-11-12
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公开(公告)号：USD334564S
公开(公告)日：1993-04-06
申请号：US577430
申请日：1990-09-04
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公开(公告)号：USD244388S
公开(公告)日：1977-05-17
申请号：US667221
申请日：1976-03-15
申请人： Ronald I. Conway , Robert V. Jones , Owen P. Shea
设计人： Ronald I. Conway , Robert V. Jones , Owen P. Shea
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