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31. 发明授权

US06897791B2 Interspersed training for turbo coded modulation 失效
标题翻译： turbo编码调制的散布训练
公开(公告)号：US06897791B2
公开(公告)日：2005-05-24
申请号：US10828450
申请日：2004-04-20
申请人： Steven T. Jaffe , Kelly B. Cameron
发明人： Steven T. Jaffe , Kelly B. Cameron
IPC分类号： H04L1/00 , H03M7/00 , H03M13/00 , H03M13/29 , H04Q7/38
CPC分类号： H04L1/0057 , H03M13/1515 , H03M13/2966 , H04B7/18589 , H04L1/0041 , H04L1/0045 , H04L1/0052 , H04L1/006 , H04L1/0065 , H04L1/0066 , H04L1/0071 , H04L1/0083 , H04L25/0226 , H04L27/0014 , H04L2027/0028 , H04L2027/0034 , H04L2027/0036
摘要： A communications system, having a combination Reed-Solomon encoder and a Turbo-Code encoder Data frame configuration which may be changed to accommodate embedded submarkers of known value are embedded in with the data order to aid synchronization in the receiver system, by providing strings of known symbols. The string of known symbols may be the same as the symbols within a training header that appears at the beginning of a data frame. Frame parameters may be tailored to individual users and may be controlled by information pertaining to receivers, such as bit error rate, of the receiver. Additional headers may be interspersed within the data in order to assist in receiver synchronization. Frames of data may be acquired quickly by a receiver by having a string of symbols representing the phase offset between successive header symbols in the header training sequence in order to determine the carrier offset. Phase lock to a signal may be achieved after determining carrier offset in receivers by correlating successive symbols in successive headers. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or the meaning of the claims.
摘要翻译：具有组合Reed-Solomon编码器和Turbo-Code编码器数据帧配置的通信系统可以被改变以适应已知值的嵌入式子标记，以数据顺序嵌入以辅助接收机系统中的同步，通过提供串已知符号。已知符号串可以与出现在数据帧开始处的训练头中的符号相同。帧参数可以针对个体用户定制，并且可以由与接收机有关的信息（例如接收机的比特错误率）来控制。额外的头可以散布在数据内，以帮助接收机同步。为了确定载波偏移，可以由接收机通过在标题训练序列中的连续首标符号之间具有表示相位偏移的符号串来快速获取数据帧。在确定接收机中的载波偏移之后可以通过将连续的标题中的连续符号相关来来实现对信号的相位锁定。要强调的是，该摘要被提供以符合要求摘要的规则，这将允许搜索者或其他读者快速确定技术公开的主题。提交它的理解是，它不会用于解释或限制权利要求的范围或含义。

32. 发明授权

US5799037A Receiver capable of demodulating multiple digital modulation formats 失效
标题翻译：能够解调多个数字调制格式的接收机
公开(公告)号：US5799037A
公开(公告)日：1998-08-25
申请号：US721663
申请日：1996-09-27
申请人： Christopher H. Strolle , Steven T. Jaffe
发明人： Christopher H. Strolle , Steven T. Jaffe
IPC分类号： H04L27/06 , H03D1/06 , H03D3/00 , H03J7/04 , H04L7/027 , H04L7/033 , H04L25/03 , H04L27/00 , H04L27/38 , H04N5/44 , H03H7/30 , H04L27/14
CPC分类号： H03J7/04 , H04L25/0307 , H04L27/0008 , H04L7/0278 , H04N5/4401 , H03D3/007 , H04L2025/03382 , H04L2025/0342 , H04L2025/0349 , H04L7/0334
摘要： A receiver for demodulating multiple digital modulation formats including vestigial sideband (VSB), quadrature amplitude modulation (QAM), and offset QAM (OQAM). The receiver includes a timing recovery circuit that produces accurate timing information for each modulation format and a signal processor for adaptive equalization and quantization of each modulation format. The adaptive equalizer is a passband equalizer that performs blind equalization using a feed forward equalizer and a decision feedback equalizer.
摘要翻译：一种用于解调多个数字调制格式的接收机，包括残留边带（VSB），正交幅度调制（QAM）和偏移QAM（OQAM）。该接收机包括一个定时恢复电路，为每个调制格式产生准确的定时信息，以及一个用于每个调制格式的自适应均衡和量化的信号处理器。自适应均衡器是使用前馈均衡器和判决反馈均衡器执行盲均衡的通带均衡器。

33. 发明授权

US08427349B2 Digital correction techniques for data converters 有权
公开(公告)号：US08427349B2
公开(公告)日：2013-04-23
申请号：US13228301
申请日：2011-09-08
申请人： Ramon Alejandro Gomez , Loke Kun Tan , Bruce J. Currivan , Steven T. Jaffe , Thomas Joseph Kolze , Lin He
发明人： Ramon Alejandro Gomez , Loke Kun Tan , Bruce J. Currivan , Steven T. Jaffe , Thomas Joseph Kolze , Lin He
IPC分类号： H03M1/06
摘要： A method and apparatus is disclosed to compensate for impairments within a data converter such that its output is a more accurate representation of its input. The data converter includes a main data converter, a reference data converter, and a correction module. The main data converter may be characterized as having the impairments. As a result, the output of the main data converter is not the most accurate representation of its input. The reference data converter is designed such that the impairments are not present. The correction module estimates the impairments present within the main data converter using its output and the reference data converter to generate corrections coefficients. The correction module adjusts the output of the main data converter using the corrections coefficients to improve the performance of the data converter.

34. 发明申请

US20120196551A1 COMMUNICATION RECEIVER ENHANCEMENTS USING MULTI-SIGNAL CAPTURE 有权
标题翻译：使用多信号捕获的通信接收机增强
公开(公告)号：US20120196551A1
公开(公告)日：2012-08-02
申请号：US13169983
申请日：2011-06-27
申请人： Ramon Alejandro Gomez , Bruce J. Currivan , Steven T. Jaffe , Loke Kun Tan , Young Shin , Hanli Zou , Lin He , Leonard Dauphinee , Thomas Joseph Kolze , Francesco Gatta
发明人： Ramon Alejandro Gomez , Bruce J. Currivan , Steven T. Jaffe , Loke Kun Tan , Young Shin , Hanli Zou , Lin He , Leonard Dauphinee , Thomas Joseph Kolze , Francesco Gatta
IPC分类号： H04B17/00
CPC分类号： H04B1/16 , H04B1/0003 , H04B1/3805 , H04B17/20
摘要： A method and apparatus is disclosed to determine communications receiver parameters from multiple channels of a received communications signal and to configure and/or adjust communications receiver parameters to acquire one or more channels from among the multiple channels of the received communications signal. A communications receiver observes a multi-channel communication signal as it passes through a communication channel. The communications receiver determines one or more communications receiver parameters from the multiple channels of the received communications signal. The communications receiver configures and/or adjusts communications receiver parameters to acquire the one or more channels from among the multiple channels of the received communications signal.
摘要翻译：公开了一种方法和装置，用于从接收到的通信信号的多个信道中确定通信接收机参数，并且配置和/或调整通信接收机参数以从所接收的通信信号的多个信道中获取一个或多个信道。通信接收机在通过通信信道时观察多信道通信信号。通信接收机从接收到的通信信号的多个信道确定一个或多个通信接收机参数。通信接收机配置和/或调整通信接收机参数以从所接收的通信信号的多个信道中获取一个或多个信道。

35. 发明授权

US07848466B2 Viterbi slicer for turbo codes 有权
标题翻译：涡轮代码维特比切片机
公开(公告)号：US07848466B2
公开(公告)日：2010-12-07
申请号：US12358362
申请日：2009-01-23
申请人： Steven T. Jaffe , Kelly B. Cameron , Christopher R. Jones
发明人： Steven T. Jaffe , Kelly B. Cameron , Christopher R. Jones
IPC分类号： H04L27/06
CPC分类号： H04L1/0066 , H04L1/005 , H04L1/0054 , H04L2027/0028 , H04L2027/0055
摘要： A method for synchronizing receivers that receive turbo encoded signals to a received signal. Turbo encoding may enable signals to be decoded at a much lower signal to noise ratio than previously practical. A traditional method of synchronizing a receiver to an incoming signal is to use a slicer to determine a received symbol and then to compare the determined symbol to the incoming waveform, in order to adjust the phase of the slicer with respect to the incoming signal. At signal low levels, at which turbo encoded signals may be decoded, this slicing method may be prone to errors that may disrupt the synchronization of the receiver to the incoming signal. By replacing the slicer by a Viterbi decoder with zero traceback (i.e., one which does not consider future values of the signal only past values) a prediction as to what the incoming signal is can be made. Because the Viterbi decoder can consider past signal values it can predict the present symbol being received with higher reliability than by using a slicer, which considers only the present value of the incoming signal.
摘要翻译：一种用于将接收turbo编码信号的接收机同步到接收信号的方法。 Turbo编码可以使信号以比以前实际的低得多的信噪比进行解码。将接收机同步到传入信号的传统方法是使用限幅器来确定接收到的符号，然后将确定的符号与输入波形进行比较，以便相对于输入信号调节限幅器的相位。在信号低电平处，可以对Turbo编码信号进行解码，该分片方法可能容易出现可能中断接收机与输入信号的同步的错误。通过用零回溯的维特比解码器（即，不将信号的未来值仅仅考虑过去的值）来替换限幅器，可以对可以进行什么输入信号进行预测。因为维特比解码器可以考虑过去的信号值，所以它可以比使用仅考虑输入信号的当前值的限幅器更可靠地预测接收到的当前码元。

36. 发明授权

US07420481B2 Interspersed training among data 有权
标题翻译：数据间穿插训练
公开(公告)号：US07420481B2
公开(公告)日：2008-09-02
申请号：US11116851
申请日：2005-04-28
申请人： Steven T. Jaffe , Kelly B. Cameron
发明人： Steven T. Jaffe , Kelly B. Cameron
IPC分类号： H03M7/34
CPC分类号： H04L1/0057 , H03M13/1515 , H03M13/2966 , H04B7/18589 , H04L1/0041 , H04L1/0045 , H04L1/0052 , H04L1/006 , H04L1/0065 , H04L1/0066 , H04L1/0071 , H04L1/0083 , H04L25/0226 , H04L27/0014 , H04L2027/0028 , H04L2027/0034 , H04L2027/0036
摘要： A communications system, having a combination Reed-Solomon encoder and a Turbo-Code encoder Data frame configuration which may be changed to accommodate embedded submarkers of known value are embedded in with the data order to aid synchronization in the receiver system, by providing strings of known symbols. The string of known symbols may be the same as the symbols within a training header that appears at the beginning of a data frame. Frame parameters may be tailored to individual users and may be controlled by information pertaining to receivers, such as bit error rate, of the receiver. Additional headers may be interspersed within the data in order to assist in receiver synchronization. Frames of data may be acquired quickly by a receiver by having a string of symbols representing the phase offset between successive header symbols in the header training sequence in order to determine the carrier offset.
摘要翻译：具有组合Reed-Solomon编码器和Turbo-Code编码器数据帧配置的通信系统可以被改变以适应已知值的嵌入式子标记，以数据顺序嵌入以辅助接收机系统中的同步，通过提供串已知符号。已知符号串可以与出现在数据帧开始处的训练头中的符号相同。帧参数可以针对个体用户定制，并且可以由与接收机有关的信息（例如接收机的比特错误率）来控制。额外的头可以散布在数据内，以帮助接收机同步。为了确定载波偏移，可以由接收机通过在标题训练序列中的连续首标符号之间具有表示相位偏移的符号串来快速获取数据帧。

37. 发明授权

US06828926B2 Interspersed training for turbo coded modulation 有权
标题翻译： turbo编码调制的散布训练
公开(公告)号：US06828926B2
公开(公告)日：2004-12-07
申请号：US10822403
申请日：2004-04-12
申请人： Steven T. Jaffe , Kelly B. Cameron
发明人： Steven T. Jaffe , Kelly B. Cameron
IPC分类号： H03M700
CPC分类号： H04L1/0057 , H03M13/1515 , H03M13/2966 , H04B7/18589 , H04L1/0041 , H04L1/0045 , H04L1/0052 , H04L1/006 , H04L1/0065 , H04L1/0066 , H04L1/0071 , H04L1/0083 , H04L25/0226 , H04L27/0014 , H04L2027/0028 , H04L2027/0034 , H04L2027/0036
摘要： A communications system, having a combination Reed-Solomon encoder and a Turbo-Code encoder Data frame configuration which may be changed to accommodate embedded submarkers of known value are embedded in with the data order to aid synchronization in the receiver system, by providing strings of known symbols. The string of known symbols may be the same as the symbols within a training header that appears at the beginning of a data frame. Frame parameters may be tailored to individual users and may be controlled by information pertaining to receivers, such as bit error rate, of the receiver. Additional headers may be interspersed within the data in order to assist in receiver synchronization. Frames of data may be acquired quickly by a receiver by having a string of symbols representing the phase offset between successive header symbols in the header training sequence in order to determine the carrier offset. Phase lock to a signal may achieved after determining carrier offset in receivers by correlating successive symbols in successive headers. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or the meaning of the claims.
摘要翻译：具有组合Reed-Solomon编码器和Turbo-Code编码器数据帧配置的通信系统可以被改变以适应已知值的嵌入式子标记，以数据顺序嵌入以辅助接收机系统中的同步，通过提供串已知符号。已知符号串可以与出现在数据帧开始处的训练头中的符号相同。帧参数可以针对个体用户定制，并且可以由与接收机有关的信息（例如接收机的比特错误率）来控制。额外的头可以散布在数据内，以帮助接收机同步。为了确定载波偏移，可以由接收机通过在标题训练序列中的连续首标符号之间具有表示相位偏移的符号串来快速获取数据帧。在确定接收机中的载波偏移之后可以通过将连续的标题中的连续符号相关来来实现对信号的相位锁定。要强调的是，该摘要被提供以符合要求摘要的规则，这将允许搜索者或其他读者快速确定技术公开的主题。提交它的理解是，它不会用于解释或限制权利要求的范围或含义。

38. 发明授权

US06771714B2 Timing recovery using the pilot signal in high definition TV 有权
标题翻译：使用高分辨率电视中的导频信号进行定时恢复
公开(公告)号：US06771714B2
公开(公告)日：2004-08-03
申请号：US10150186
申请日：2002-05-16
申请人： Tian-Min Liu , Loke Kun Tan , Steven T. Jaffe
发明人： Tian-Min Liu , Loke Kun Tan , Steven T. Jaffe
IPC分类号： H04L2714
CPC分类号： H04N5/21 , H04B1/68 , H04L25/03057 , H04L27/02 , H04L27/066 , H04L27/2273 , H04L27/3427 , H04L27/3827 , H04L2025/03382 , H04L2025/0342 , H04L2025/0349 , H04L2025/03503 , H04L2027/0032 , H04L2027/0042 , H04L2027/0057 , H04L2027/0067 , H04L2027/0087 , H04N5/211 , H04N5/44 , H04N5/4401 , H04N5/455 , H04N5/46 , H04N11/002
摘要： Improved carrier recovery and symbol timing systems and methods suitable for use in connection with a dual-mode QAM/VSB receiver system is disclosed. Carrier and symbol timing acquisition and tracking loops are phase/frequency locked to an inserted pilot signal provided in an input VSB spectrum at a given frequency. An input spectrum is centered about baseband and the pilot is extracted by an equivalent filter which functions as a bandpass filter having pass bands centered about the pilot frequency. Since the pilot signal's frequency is given, its position in the frequency domain for any sampling frequency, is deterministic. The receiver's sampling frequency is provided such that the relationship is expressed as fc=fs/4. When tracked by a phase-lock loop, the pilot signal will appear at the correct location in the spectrum if the sampling frequency fs is correct, and will be shifted in one direction or the other if the sampling frequency fs is too high or too low.
摘要翻译：公开了适用于双模QAM / VSB接收机系统的改进的载波恢复和符号定时系统和方法。载波和符号定时采集和跟踪环路被相位/频率锁定到在给定频率下在输入VSB频谱中提供的插入导频信号。输入频谱以基带为中心，并且通过等效滤波器提取导频，该等效滤波器用作具有以导频频率为中心的通带的带通滤波器。由于给出了导频信号的频率，所以在频域中对于任何采样频率的位置是确定性的。提供接收机的采样频率，使得该关系被表示为fc = fs / 4。当通过锁相环路进行跟踪时，如果采样频率fs正确，则导频信号将出现在频谱中的正确位置，并且如果采样频率fs太高或太低，则导频信号将在一个方向或另一个方向上移位。

39. 发明授权

US06727936B2 NTSC interference rejection filter 失效
标题翻译： NTSC干扰抑制滤波器
公开(公告)号：US06727936B2
公开(公告)日：2004-04-27
申请号：US10004515
申请日：2001-11-02
申请人： Tian-Min Liu , Loke Kun Tan , Steven T. Jaffe , Robert A. Hawley
发明人： Tian-Min Liu , Loke Kun Tan , Steven T. Jaffe , Robert A. Hawley
IPC分类号： H04N538
CPC分类号： H04B1/68 , H04L25/03057 , H04L27/02 , H04L27/066 , H04L27/2273 , H04L27/3427 , H04L27/3827 , H04L2025/03382 , H04L2025/0342 , H04L2025/0349 , H04L2025/03503 , H04L2027/0032 , H04L2027/0042 , H04L2027/0057 , H04L2027/0067 , H04L2027/0087 , H04N5/21 , H04N5/211 , H04N5/44 , H04N5/4401 , H04N5/46 , H04N11/002
摘要： An electronic, programmable filter is disclosed which selectively removes interference, noise or distortion components from a frequency band without perturbing any of the other signals of the band. An input frequency band such as a television channel spectrum is initially demodulated to baseband and applied to the input of the filter. The baseband spectrum is combined in a complex mixer with a synthesized frequency signal that shifts the spectrum a characteristic amount, in the frequency domain, so as to position an interference component in the region about DC. Once shifted, the frequency components about DC are removed by DC canceler circuit and the resulting spectrum is mixed with a subsequent synthesized frequency signal which shifts the spectrum back to its original representation and baseband. The frequency signals are developed by a programmable frequency synthesizer which a user may program with an intelligence signal that defines the frequency location of an interference signal within the spectrum. Filter blocks may be added or subtracted in order to optimize the filter response for any number of interference components for which rejection is desired.
摘要翻译：公开了一种电子可编程滤波器，其选择性地从频带中去除干扰，噪声或失真分量，而不扰乱频带的任何其它信号。诸如电视频道频谱的输入频带最初被解调为基带并且被应用于滤波器的输入。基带频谱在复合混频器中与合成频率信号组合，该频率信号在频域中使频谱偏移特征量，以便在DC周围的区域中定位干扰分量。一旦移位，DC直流的频率分量被直流消除器电路去除，所得到的频谱与随后的合成频率信号混合，后者将频谱转移回原来的表示和基带。频率信号由可编程频率合成器开发，用户可以使用定义频谱内的干扰信号的频率位置的智能信号进行编程。可以添加或减少滤波器块以优化对于期望的抑制的任何数量的干扰分量的滤波器响应。

40. 发明授权

US06686853B2 Method and apparatus for iterative decoding 失效
标题翻译：用于迭代解码的方法和装置
公开(公告)号：US06686853B2
公开(公告)日：2004-02-03
申请号：US10219858
申请日：2002-08-15
申请人： Ba-Zhong Shen , Kelly B. Cameron , Steven T. Jaffe
发明人： Ba-Zhong Shen , Kelly B. Cameron , Steven T. Jaffe
IPC分类号： H03M700
CPC分类号： H03M13/2906 , H03M13/1105 , H03M13/1111 , H03M13/1128 , H03M13/2975 , H03M13/3753
摘要： Method and apparatus for determining the stopping point of an iterative decoding process. In one embodiment the estimated values of an iteration of an iterative decoder are provided to a signature circuit. If the signature does not differ from the previous signature developed from a prior iteration, or the signature developed from an iteration prior to the previous iteration, the decoding stops. The variance may also be tested and compared to a threshold as a criteria to stop the iterative decoding.
摘要翻译：用于确定迭代解码过程的停止点的方法和装置。在一个实施例中，将迭代解码器的迭代的估计值提供给签名电路。如果签名与从先前迭代开始的先前签名或从前一次迭代之前的迭代开发的签名没有不同，则解码停止。也可以测量方差并将其与阈值进行比较，作为停止迭代解码的标准。

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