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    DATA FRAME FORMAT FOR VARIABLE SIZE DATA CONSTELLATIONS
    2.
    发明申请
    DATA FRAME FORMAT FOR VARIABLE SIZE DATA CONSTELLATIONS 审中-公开
    数据框格式可变尺寸数据保密

    公开(公告)号：WO1995018494A1

    公开(公告)日：1995-07-06

    申请号：PCT/US1994014394

    申请日：1994-12-15

    Applicant: ZENITH ELECTRONICS CORPORATION

    Inventor： ZENITH ELECTRONICS CORPORATION ,  FIMOFF, Mark ,  LAUD, Timothy, G.

    IPC: H04L01/12

    CPC classification number: H04L1/0057 ,  H03M5/20 ,  H04L1/0003 ,  H04L1/0025 ,  H04L1/0052 ,  H04L1/0071 ,  H04N5/4401 ,  H04N7/56

    Abstract: A data frame structure for variable size data constellations includes repetitive data segments each containing a fixed number of symbols arranged as a data segment sync character and data bytes. The frame includes a header segment including a frame sync code and a data constellation size code for the data frame. The data frame incorporates error correction groups and the frame size is selected to produce an integral number of error correction groups and data bytes in each frame for all of the variable size data constellations.

    Abstract translation: 用于可变大小数据星座的数据帧结构包括重复数据段，每个重复数据段包含排列成数据段同步字符和数据字节的固定数目的符号。 帧包括包括帧同步码和数据帧的数据星座大小码的标题段。 数据帧包含错误校正组，并且选择帧大小来为所有可变大小的数据星座在每帧中产生整数个纠错组和数据字节。

    SYSTEM FOR MULTIPLEXED TRANSMISSION OF COMPRESSED VIDEO AND AUXILIARY DATA
    3.
    发明申请
    SYSTEM FOR MULTIPLEXED TRANSMISSION OF COMPRESSED VIDEO AND AUXILIARY DATA 审中-公开
    压缩视频和辅助数据的多路复用传输系统

    公开(公告)号：WO1995002301A2

    公开(公告)日：1995-01-19

    申请号：PCT/US1994006983

    申请日：1994-06-21

    Applicant: ZENITH ELECTRONICS CORPORATION

    Inventor： ZENITH ELECTRONICS CORPORATION ,  CITTA, Richard, W. ,  FIMOFF, Mark ,  HAUGE, Raymond, C.

    IPC: H04N07/08

    CPC classification number: H04N7/52 ,  H04N7/08 ,  H04N19/124 ,  H04N19/14 ,  H04N19/146 ,  H04N19/149 ,  H04N19/152 ,  H04N19/172 ,  H04N19/37 ,  H04N19/42 ,  H04N19/46 ,  H04N19/60 ,  H04N21/2343 ,  H04N21/23614 ,  H04N21/2662

    Abstract: A television signal transmission system comprises a multiplexer (34) for combining a compressed video data signal and one or more auxiliary data signals to form a multiplexed signal for transmission over a channel of fixed bandwidth. The multiplexer (34) is controlled to vary the ratio of the components comprising the multiplexed signal to insure satisfactory reproducible image quality in response to the received compressed video data signal. The compressed video data signal may be buffered (26) prior to combination with the auxiliary data, in which case the multiplexer (34) is also further controlled to vary the ratio of the components comprising the multiplexed signal to maintain the fullness of the buffer (26) at an acceptable level.

    Abstract translation: 电视信号传输系统包括：多路复用器（34），用于将压缩视频数据信号与一个或多个辅助数据信号组合以形成用于通过固定带宽的信道进行传输的复用信号。 控制复用器（34）以响应于接收的压缩视频数据信号来改变包括多路复用信号的分量的比率以确保令人满意的可再现图像质量。 压缩视频数据信号可以在与辅助数据组合之前被缓冲（26），在这种情况下，还进一步控制多路复用器（34）以改变包括多路复用信号的组件的比例以保持缓冲器的充满度（ 26）在可接受的水平。

    DATA DE-ROTATOR AND DE-INTERLEAVER
    4.
    发明申请
    DATA DE-ROTATOR AND DE-INTERLEAVER 审中-公开
    数据转发器和去交换机

    公开(公告)号：WO1998004973A1

    公开(公告)日：1998-02-05

    申请号：PCT/US1997012607

    申请日：1997-07-18

    Applicant: ZENITH ELECTRONICS CORPORATION

    Inventor： ZENITH ELECTRONICS CORPORATION ,  FIMOFF, Mark ,  SPAETE, Lawrence, C., Jr.

    IPC: G06F12/00

    CPC classification number: H04N21/2383 ,  H03M13/2764 ,  H04N21/4382

    Abstract: An apparatus (28) for de-rotating and de-interleaving data includes (i) a first memory (32) for storing D elements of rotated and interleaved data in D storage locations, (ii) a first addresser (36) for addressing the first memory (32) in order to read de-rotated and interleaved data out of the D storage locations and to write rotated and interleaved data into the D storage locations, (iii) a second memory (38) for storing mD elements of the de-rotated and interleaved data read out of the first memory (32), wherein the de-rotated and interleaved data read out of the first memory (32) are stored in mD storage locations of the second memory (38), and (iv) a second addresser (40) for addressing the second memory (38) in order to read de-rotated and de-interleaved data out of the mD storage locations and to write de-rotated and interleaved data from the first memory (32) into the mD storage locations.

    Abstract translation: 一种用于去旋转和解交织数据的设备（28）包括：（i）用于存储D个存储位置中旋转和交错数据的D个元素的第一存储器（32），（ii） 第一存储器（32），以便从D个存储位置读取去旋转和交织的数据，并将旋转和交错的数据写入D个存储位置，（iii）第二存储器（38），用于存储de 从第一存储器（32）读出的旋转和交错数据，其中从第一存储器（32）读出的去旋转和交错数据被存储在第二存储器（38）的mD存储位置中，以及（iv） 用于寻址第二存储器（38）的第二寻址器（40），以便从mD存储位置读取去旋转和去交织的数据，并将去旋转和交织的数据从第一存储器（32）写入到 mD存储位置。

    ATV/MPEG SYNC SYSTEM
    5.
    发明申请
    ATV/MPEG SYNC SYSTEM 审中-公开
    ATV / MPEG同步系统

    公开(公告)号：WO1996031963A1

    公开(公告)日：1996-10-10

    申请号：PCT/US1996004544

    申请日：1996-04-03

    Applicant: ZENITH ELECTRONICS CORPORATION

    Inventor： ZENITH ELECTRONICS CORPORATION ,  CITTA, Richard, W. ,  FIMOFF, Mark ,  LAUD, Timothy, G.

    IPC: H04J03/22

    CPC classification number: H04N7/56 ,  H03M5/20 ,  H04L1/0057 ,  H04L1/0059 ,  H04N5/4401

    Abstract: An ATV system (16, 18, 20) encodes variable length elementary streams of data into a multilevel symbol signal comprising a plurality of multiplexed fixed length data packets without sync information. The fixed length data packets are arranged in fields of repetitive data segments, each of which includes a data segment sync and each field of which includes a field sync. The fields of data segments are transmitted as suppressed carrier VSB modulation (28). In an ATV receiver, the data segment sync is used to generate a timing signal that identifies the beginning of each fixed length data packet. In one embodiment, a packet sync signal is inserted into each recovered fixed length data packet for recovering the elementary streams of data. In another embodiment, recovery of the elementary streams of data is accomplished without inserting a packet sync signal.

    Abstract translation: ATV系统（16,18,20）将可变长度的基本数据流编码成包括没有同步信息的多个多路复用固定长度数据分组的多电平符号信号。 固定长度数据分组被布置在重复数据段的字段中，每个数据段包括数据段同步，并且每个字段包括字段同步。 数据段的字段作为抑制载波VSB调制（28）发送。 在ATV接收机中，数据段同​​步用于产生标识每个固定长度数据分组的开始的定时信号。 在一个实施例中，分组同步信号被插入到每个恢复的固定长度数据分组中，用于恢复基本的数据流。 在另一个实施例中，在不插入分组同步信号的情况下完成数据的基本流的恢复。

    CONVOLUTIONAL INTERLEAVER AND DEINTERLEAVER
    6.
    发明申请
    CONVOLUTIONAL INTERLEAVER AND DEINTERLEAVER 审中-公开
    互动交互和删除

    公开(公告)号：WO1995018489A1

    公开(公告)日：1995-07-06

    申请号：PCT/US1994014628

    申请日：1994-12-15

    Applicant: ZENITH ELECTRONICS CORPORATION

    Inventor： ZENITH ELECTRONICS CORPORATION ,  FIMOFF, Mark ,  HALOZAN, Scott, F. ,  HAUGE, Raymond, C.

    IPC: H03M13/22

    CPC classification number: H03M13/2785 ,  H03M13/2732 ,  H03M13/276 ,  H04N19/89

    Abstract: 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 an 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.

    Abstract translation: 卷积交织器或解交织器包括用于重复产生[（B-1）N / 2] + 1个地址信号序列的地址信号发生器，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存储器位置。

    ADAPTIVE THRESHOLDING ALGORITHM FOR THE NOISE DUE TO UNKNOWN SYMBOLS IN CORRELATION BASED CHANNEL IMPULSE RESPONSE (CIR) ESTIMATE
    8.
    发明申请
    ADAPTIVE THRESHOLDING ALGORITHM FOR THE NOISE DUE TO UNKNOWN SYMBOLS IN CORRELATION BASED CHANNEL IMPULSE RESPONSE (CIR) ESTIMATE 审中-公开
    基于相关通道冲突响应（CIR）估计的未知符号的噪声的自适应阈值算法

    公开(公告)号：WO2003103245A1

    公开(公告)日：2003-12-11

    申请号：PCT/US2003/015455

    申请日：2003-05-16

    Applicant: ZENITH ELECTRONICS CORPORATION

    Inventor： FIMOFF, Mark ,  NERAYANURU, Streenivasa, M ,  PLADDY, Christopher, J.

    IPC: H04L25/02

    CPC classification number: H04L25/0218

    Abstract: An impulse response is estimated for a channel by estimating an intermediate impulse response of the channel. The intermediate impulse response comprises at least one multipath spike and one or more non-deterministic noise components at locations throughout the channel. Then, a threshold function is applied to the estimated intermediate impulse response across at least a portion of the channel in order to provide an estimated final impulse response of the channel. The threshold function has the effect of nulling the noise components of the channel having values less than the threshold function at the location within the channel of the respective noise component, and the threshold function is characterized by a level that varies across the portion of the channel from a minimum value to a maximum value in a manner determined by the location of the at least one multipath spike within the channel.

    Abstract translation: 通过估计信道的中间脉冲响应来估计信道的脉冲响应。 中间脉冲响应包括在整个通道的位置处的至少一个多路径尖峰和一个或多个非确定性噪声分量。 然后，阈值函数被应用于跨信道的至少一部分的估计的中间脉冲响应，以便提供信道的估计的最终脉冲响应。 阈值函数具有使在各个噪声分量的信道内的位置处具有小于阈值函数的信道的噪声分量归零的效果，并且阈值函数的特征在于在信道的该部分上变化的电平 以由通道内的至少一个多径峰值的位置确定的方式从最小值到最大值。

    CHANNEL ESTIMATION METHOD BLENDING CORRELATION AND LEAST-SQUARES BASED APPROACHES
    9.
    发明申请
    CHANNEL ESTIMATION METHOD BLENDING CORRELATION AND LEAST-SQUARES BASED APPROACHES 审中-公开
    通道估计方法融合相关和基于最小二乘法的方法

    公开(公告)号：WO2003036891A2

    公开(公告)日：2003-05-01

    申请号：PCT/US2002/034112

    申请日：2002-10-24

    Applicant: ZENITH ELECTRONICS CORPORATION

    Inventor： FIMOFF, Mark ,  SERDAR, Ozen ,  ZOLTKOWSKI, Michael, D.

    IPC: H04L25/02

    CPC classification number: H04L25/025 ,  H04L25/0228 ,  H04L25/0244

    Abstract: A response of a channel may be estimated by correlating a received signal and a training sequence, by forming a matrix Γ based on a desired shape for the peaks of the correlation, by extracting a vector y from the received signal, and by estimating the channel response from a least-squares solution based on the matrix Γ, the vector y, and a matrix formed from the elements of the known training sequence.

    Abstract translation: 可以通过将接收信号和训练序列相关联来估计信道的响应，通过基于所述相关峰值的期望形状，通过从接收信号中提取向量y，并且估计信道 基于矩阵GAMMA的最小二乘解决方案的响应，向量y和由已知训练序列的元素形成的矩阵。

    TAP WEIGHT INITIALIZER FOR AN ADAPTIVE EQUALIZER
    10.
    发明申请
    TAP WEIGHT INITIALIZER FOR AN ADAPTIVE EQUALIZER 审中-公开
    在自适应均衡器中初始化TAP权重的方法

    公开(公告)号：WO2003005660A2

    公开(公告)日：2003-01-16

    申请号：PCT/US2002/020907

    申请日：2002-07-02

    Applicant: ZENITH ELECTRONICS CORPORATION

    Inventor： FIMOFF, Mark ,  ZOLTOWSKI, Michael ,  OZEN, Serdar

    IPC: H04L25/03

    CPC classification number: H04L25/03063

    Abstract: Initial values of the tap weights for the taps of a linear equalizer are determined based on a channel impulse response of a channel so that the values corresponding to the weights of the equalizer taps achieve optimum initialization of the equalizer. These values are determined through use of a nested summation where the number of summations is dependent upon the number of multi-paths characterizing the channel.

    Abstract translation: 基于信道的信道脉冲响应来确定线性均衡器的抽头的抽头权重的初始值，使得对应于均衡器抽头的权重的值实现均衡器的最优初始化。 这些值通过使用嵌套求和来确定，其中求和的数目取决于表征通道的多路径的数量。

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