公开(公告)号：US5572532A

公开(公告)日：1996-11-05

申请号：US315153

申请日：1994-09-29

申请人： Mark Fimoff ,  Scott F. Halozan ,  Raymond C. Hauge

发明人： Mark Fimoff ,  Scott F. Halozan ,  Raymond C. Hauge

IPC分类号： H03M13/27 ,  H04L27/00 ,  H04N19/89 ,  H03M13/22

CPC分类号： H03M13/2785 ,  H03M13/2732 ,  H03M13/276 ,  H04N19/89

摘要： A convolutional interleaver or deinterleaver comprises an address signal generator for repeatedly generating [(B-1)N/2]+1 sequences of address signals, where B is a desired interleave depth and N is a value equal to or greater than the number of data bytes in a R-S block of the data stream. Each of the sequences corresponds to a respective row of a B column matrix, the first column of which comprises [(B-1)N/2]+1 consecutively numbered values. Each remaining column comprises the preceding column rotated by an integer multiple of N/B. The address signals are applied to a memory having [(B-1)N/2]+1 storage locations for reading the data stored at the address memory location and then writing the current data byte to the same memory location.

摘要翻译： 卷积交织器或解交织器包括地址信号发生器，用于重复产生[（B-1）N / 2] +1个地址信号序列，其中B是期望的交织深度，N是等于或大于 数据流的RS块中的数据字节。 每个序列对应于B列矩阵的相应行，其第一列包括[（B-1）N / 2] +1个连续编号的值。 每个剩余的列包括以N / B的整数倍旋转的前一列。 地址信号被施加到具有[（B-1）N / 2] +1个存储位置的存储器，用于读取存储在地址存储器位置的数据，然后将当前数据字节写入相同的存储器位置。

公开(公告)号：US06304619B1

公开(公告)日：2001-10-16

申请号：US09108433

申请日：1998-07-01

申请人： Richard W. Citta ,  Scott F. Halozan

发明人： Richard W. Citta ,  Scott F. Halozan

IPC分类号： H04L2706

CPC分类号： H04B1/69

摘要： A receiver receives a received signal containing a pilot up chirp and a pilot down chirp. The pilot up chirp has a frequency which increases from a time reference zero to a time reference tN, and the pilot down chirp has a frequency which decreases from the time reference tN to a time reference 2ttN. A sampler of the receiver is arranged to sample the received signal. A detector is arranged to correlate the received signal samples with a reference up chirp and a reference down chirp. The reference up chirp has a varying frequency substantially matching the pilot up chirp, and the reference down chirp has a varying frequency substantially matching the pilot down chirp. A sample adjuster is arranged to synchronize the received signal samples in response to the detector.

摘要翻译： 接收器接收接收到的信号，该信号包含一个引导线啁啾和一个先导信号啁啾声。 导频线性调频脉冲具有从时间基准零增加到时间基准tN的频率，并且导频向下线性调频脉冲具有从时间参考t N减小到时间参考2ttN的频率。 接收器的采样器被布置成对接收到的信号进行采样。 检测器被布置成将接收的信号样本与参考线性调频脉冲和参考向下啁啾相关。 参考线性调频脉冲具有基本上与先导线性调频脉冲相匹配的变化频率，并且参考向下啁啾具有与导频下行啁啾基本匹配的变化频率。 样本调节器被布置成响应于检测器使接收的信号样本同步。

公开(公告)号：US5438369A

公开(公告)日：1995-08-01

申请号：US931177

申请日：1992-08-17

申请人： Richard W. Citta ,  Scott F. Halozan

发明人： Richard W. Citta ,  Scott F. Halozan

IPC分类号： H04N19/89 ,  H04N21/2383 ,  H04N21/438 ,  H04N7/015 ,  H04N7/64

CPC分类号： H04N21/2383 ,  H04N19/89 ,  H04N21/4382

摘要： A digital data transmission system for signals in the areas of interference having a high degree of vertical correlation comprises a transmission frame including a plurality of vertically arranged repetitive horizontal data segments each including a fixed number of subsegments with symbols of individual subsegments being vertically correlated on different data segments. The vertically correlated symbols are further interspersed in the transmission frame for guarding against horizontally correlated burst noise. A Reed-Solomon correction system is incorporated for each data segment in the transmission frame.

摘要翻译： 用于具有高垂直相关性的干扰区域中的信号的数字数据传输系统包括：传输帧，包括多个垂直排列的重复水平数据段，每个重复水平数据段包括固定数量的子段，其中各个子段的符号在不同的垂直相关上 数据段 垂直相关符号进一步散布在传输帧中，以防止水平相关的突发噪声。 对于传输帧中的每个数据段，并入Reed-Solomon校正系统。

公开(公告)号：US5241385A

公开(公告)日：1993-08-31

申请号：US926008

申请日：1992-08-05

申请人： Scott F. Halozan

发明人： Scott F. Halozan

IPC分类号： H04N5/44 ,  H04N7/08 ,  H04N7/24

CPC分类号： H04N5/4401 ,  H04N7/08 ,  H04N7/24

摘要： A method of processing a television signal includes providing a digital television signal comprising a plurality of subsegments each including a plurality of N-level symbols and defining a relative transmission level for each of said N levels. The symbols of each of the subsegments are modulo-N offset by an offset factor o-(N-1) selected for insuring that the average relative transmission level for the symbols of each respective subsegment is characterized by a positive level.

摘要翻译： 一种处理电视信号的方法包括：提供数字电视信号，该数字电视信号包括多个子片段，每个子片段包括多个N电平符号，并为每个所述N个电平定义相对传输电平。 每个子段的符号是模N偏移选择的偏移因子o-（N-1），以确保每个相应子段的符号的平均相对传输电平由正电平表征。

公开(公告)号：US5410569A

公开(公告)日：1995-04-25

申请号：US931176

申请日：1992-08-19

申请人： Scott F. Halozan

发明人： Scott F. Halozan

IPC分类号： H04L25/06 ,  H04L25/49

CPC分类号： H04L25/065 ,  H04L25/062 ,  H04L25/066 ,  H04L25/4917

摘要： A receiver for receiving transmitted digital signals including either two level or four level symbols that are interleaved in a predetermined pattern in a frame format consisting of a plurality of successive data segments. The symbols are converted into ten bit numbers that are soft sliced to generate four bit numbers representing ranges of values within which each ten bit number may fall. The data represented by the four bit numbers is deinterleaved, a birate flag is generated that identifies the nature of each four bit number, i.e. whether it represents a two level symbol or a four level symbol, and a hard slicer operates, in response to the birate flag, for converting each of the four bit numbers to corresponding two bit binary outputs.

摘要翻译： 一种用于接收发送的数字信号的接收机，包括以由多个连续数据段组成的帧格式以预定模式进行交织的两个电平或四个电平符号。 符号被转换成十位数，它们是软分片，以产生表示每十位数可能落在其中的值的范围的四位数。 由四位数字表示的数据被解交织，生成标识每个四位数的性质的双向标志，即它是否表示二级符号或四级符号，并且硬切片器响应于 双向标志，用于将四个位数中的每一个转换为相应的二位二进制输出。

公开(公告)号：US5181112A

公开(公告)日：1993-01-19

申请号：US667153

申请日：1991-03-11

申请人： Richard W. Citta ,  Scott F. Halozan ,  Gary J. Sgrignoli

发明人： Richard W. Citta ,  Scott F. Halozan ,  Gary J. Sgrignoli

IPC分类号： H04N7/015 ,  H04N5/44 ,  H04N7/08 ,  H04N7/24 ,  H04N7/26 ,  H04N21/2383 ,  H04N21/438

CPC分类号： H04N5/4401 ,  H04N7/08 ,  H04N7/24 ,  H04H20/72

摘要： A television signal transmission system is used for transmitting an N-level video related data signal. The data signal is processed prior to transmission such that the majority of N-level symbols comprise a non-negative level for facilitating receiver lock-up. An in-phase pilot component may be added to the transmission by D.C. offsetting the processed signal to further facilitate receiver lock-up. The processed signal is precoded by a modulo-N filter and postcoded by a complementary linear filter in the receiver to reduce interfering NTSC components. In the absence of interfering NTSC components, a complementary modulo-N postcoding filter may be used in the receiver to provide improved signal to noise performance.

摘要翻译： 电视信号传输系统用于发送N级视频相关数据信号。 在传输之前处理数据信号，使得大部分N电平符号包括用于促进接收机锁定的非负电平。 同步导频分量可以通过直流偏移加到传输中，以便进一步促进接收机锁定。 经处理的信号由模N滤波器预编码并由接收机中的互补线性滤波器进行后编码以减少干扰NTSC分量。 在没有干扰NTSC分量的情况下，可以在接收机中使用互补模N后置编码滤波器来提供改进的信噪比性能。