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1. 发明申请

WO2007040572A1 TRANSMISSION OF INFORMATION ON AN AUXILIARY CHANNEL 审中-公开
标题翻译：传输辅助通道信息
公开(公告)号：WO2007040572A1
公开(公告)日：2007-04-12
申请号：PCT/US2005/045170
申请日：2005-12-13
申请人： THOMSON LICENSING , BELOTSERKOVSKY, Maxim, Borisovich , MARKMAN, Ivonete , EDDE, Gabriel, Alfred
发明人： BELOTSERKOVSKY, Maxim, Borisovich , MARKMAN, Ivonete , EDDE, Gabriel, Alfred
IPC分类号： H04N7/24 , H04N5/44
CPC分类号： H04N21/4382 , H04N5/4401 , H04N5/455 , H04N7/08 , H04N21/23412 , H04N21/2383 , H04N21/4383
摘要： A transmitter comprises an ATSC (Advanced Television Systems Committee) modulator and an auxiliary channel (AC) discrete multitone (DMT) modulator. The ATSC modulator provides an ATSC signal for broadcast in a channel for communicating a high definition television (HDTV) service. The DMT modulator receives auxiliary data for the HDTV service and modulates this auxiliary data to provide an AC signal for broadcast in the same channel, i.e., the AC signal is a co-channel interfering signal to the broadcast ATSC signal. In particular, the DMT modulator modulates the auxiliary data such that the AC signal imitates one, or more, spectral properties of an NTSC (National Television Systems Committee) broadcast signal. In a complementary fashion, a receiver comprises an ATSC demodulator, for recovery of a high definition television (HDTV) signal, and a discrete multitone (DMT) demodulator, for recovery of the auxiliary data.
摘要翻译：发射机包括ATSC（高级电视系统委员会）调制器和辅助信道（AC）离散多音调（DMT）调制器。 ATSC调制器提供用于在用于传送高分辨率电视（HDTV）服务的频道中广播的ATSC信号。 DMT调制器接收HDTV业务的辅助数据，并对该辅助数据进行调制，以提供用于在同一信道中进行广播的AC信号，即AC信号是与广播ATSC信号的同信道干扰信号。特别地，DMT调制器调制辅助数据，使得AC信号模拟NTSC（国家电视系统委员会）广播信号的一个或多个频谱特性。以互补的方式，接收机包括用于恢复高分辨率电视（HDTV）信号的ATSC解调器和用于恢复辅助数据的离散多音（DMT）解调器。

2. 发明申请

WO2002085006A1 GAIN CONTROL FOR A HIGH DEFINITION TELEVISION DEMODULATOR 审中-公开
标题翻译：高分辨率电视解调器的增益控制
公开(公告)号：WO2002085006A1
公开(公告)日：2002-10-24
申请号：PCT/US2002/011810
申请日：2002-04-16
申请人： THOMSON LICENSING S.A. , MARKMAN, Ivonete , EDDE, Gabriel, Alfred
发明人： MARKMAN, Ivonete , EDDE, Gabriel, Alfred
IPC分类号： H04N5/44
CPC分类号： H03G3/3036 , H04N5/4401 , H04N5/455 , H04N5/52
摘要： A demodulator for a high definition television receiver includes a first circuit element which receives a signal, and is operative in a first arrangement to produce an output signal having a first dynamic range, and operative in a second arrangement to produce an output signal having a second dynamic range different from the first dynamic range. A second circuit element is arranged for optimally processing a signal having a substantially predetermined fixed dynamic range. A gain control circuit is coupled between the first and second circuit elements, and produces a signal having the substantially predetermined fixed dynamic range.
摘要翻译：一种用于高分辨率电视接收机的解调器包括：第一电路元件，其接收信号，并以第一布置操作以产生具有第一动态范围的输出信号，并在第二布置中操作以产生具有第二动态范围不同于第一动态范围。第二电路元件布置成用于最佳地处理具有基本上预定的固定动态范围的信号。增益控制电路耦合在第一和第二电路元件之间，并产生具有基本预定的固定动态范围的信号。

3. 发明申请

WO2005114892A1 CARRIER PHASE AMBIGUITY CORRECTION 审中-公开
标题翻译：载波相位修正
公开(公告)号：WO2005114892A1
公开(公告)日：2005-12-01
申请号：PCT/US2005/010519
申请日：2005-03-29
申请人： THOMSON LICENSING S.A. , MARKMAN, Ivonete , EDDE, Gabriel, Alfred
发明人： MARKMAN, Ivonete , EDDE, Gabriel, Alfred
IPC分类号： H04L7/02
CPC分类号： H04L7/0054
摘要： A receiver comprises a demodulator for providing a demodulated signal and a centroid calculator responsive to the demodulated signal for identifying a correct carrier phase for use in the centroid calculation and in removing carrier phase ambiguity in the demodulator. In addition, the centroid calculator may include a limiter.
摘要翻译：接收机包括用于提供解调信号的解调器和响应于解调信号的质心计算器，用于识别在质心计算中使用的正确载波相位，以及消除解调器中的载波相位模糊度。另外，重心计算器可以包括限制器。

4. 发明申请

WO2004049699A3 APPARATUS AND METHOD FOR DETECTING NTSC CO-CHANNEL INTERFERENCE 审中-公开
公开(公告)号：WO2004049699A3
公开(公告)日：2004-06-10
申请号：PCT/US2003/035921
申请日：2003-11-12
申请人： THOMSON LICENSING S.A. , MARKMAN, Ivonete , EDDE, Gabriel, Alfred
发明人： MARKMAN, Ivonete , EDDE, Gabriel, Alfred
IPC分类号： H04N5/21
摘要： A television set (10) includes an ATSC (Advanced Television Systems Committee) receiver (15), which includes an NTSC (National Television Systems Committee) co-channel interference detector (40) based on carrier tracking of the NTSC video carrier signal. The NTSC co-channel interference detector includes a carrier tracking loop (50) and a decision device (55). The carrier tracking loop processes a received signal for detecting the possible presence of the NTSC video carrier signal and for providing a tracking signal representative thereof. The decision device receives the tracking signal and recovers a DC offset therefrom. The decision device then determines that NTSC co-channel interference is present if the DC offset signal is greater than a predefined threshold.

5. 发明申请

WO2003088493A1 APPARATUS AND METHOD FOR SYMBOL TIMING RECOVERY 审中-公开
标题翻译：用于符号时序恢复的装置和方法
公开(公告)号：WO2003088493A1
公开(公告)日：2003-10-23
申请号：PCT/US2003/010720
申请日：2003-04-08
申请人： THOMSON LICENSING S.A. , EDDE, Gabriel, Alfred
发明人： EDDE, Gabriel, Alfred
IPC分类号： H03L7/00
CPC分类号： H04L7/0062 , H04L7/0334 , H04L7/0335
摘要： A symbol timing recovery detector (200) receives a sample stream, representing an input signal having successive symbol times sampled at successive sample times. The sample stream includes samples representing successive symbols alternating with samples representing transitions between surrounding symbol representative samples. The detector (200) includes a first circuit which determines a transition value from a transition representative sample and surrounding symbol representative samples. A second circuit determines the slope between the surrounding symbol representative samples. A third circuit generates a signal representing the phase error between the sample times and the symbol times of the input signal from the slope and the transition value.
摘要翻译：符号定时恢复检测器（200）接收采样流，表示具有在连续采样时间采样的连续符号时间的输入信号。样本流包括代表连续符号的样本，与代表周围符号代表样本之间的转变的样本交替。检测器（200）包括第一电路，其确定来自转换代表性样本和周围符号代表性样本的转变值。第二电路确定周围符号代表性样本之间的斜率。第三电路产生表示采样时间与来自斜率和转换值的输入信号的符号时间之间的相位误差的信号。

6. 发明申请

WO2007053196A1 A DIGITAL DETECTOR FOR ATSC DIGITAL TELEVISION SIGNALS 审中-公开
标题翻译： ATSC数字电视信号数字检测器
公开(公告)号：WO2007053196A1
公开(公告)日：2007-05-10
申请号：PCT/US2006/021642
申请日：2006-06-05
申请人： THOMSON LICENSING , MARKMAN, Ivonete , EDDE, Gabriel, Alfred , MUTERSPAUGH, Max, Ward
发明人： MARKMAN, Ivonete , EDDE, Gabriel, Alfred , MUTERSPAUGH, Max, Ward
IPC分类号： H04N5/44 , H04N5/50
CPC分类号： H04N5/50 , H04N5/4401 , H04N21/4345 , H04N21/4382 , H04N21/4383 , H04N21/6131
摘要： A Wireless Regional Area Network (WRAN) receiver comprises a transceiver for communicating with a wireless network over one of a number of channels, and an Advanced Television Systems Committee (ATSC) signal detector for use in forming a supported channel list comprising those ones of the number of channels upon which an ATSC signal was not detected, wherein the ATSC signal detector is a threshold-based detector and detects an ATSC signal as a function of at least one threshold, and wherein the ATSC signal detector is responsive to at least one of a carrier tracking loop lock signal, a symbol timing recovery lock signal and a synchronization (sync) lock signal.
摘要翻译：无线区域网络（WRAN）接收机包括用于通过多个信道之一与无线网络进行通信的收发机，以及用于形成支持的频道列表的高级电视系统委员会（ATSC）信号检测器，其包括没有检测到ATSC信号的通道数，其中ATSC信号检测器是基于阈值的检测器，并且检测作为至少一个阈值的函数的ATSC信号，并且其中ATSC信号检测器响应于以下各项中的至少一个：载波跟踪环锁定信号，符号定时恢复锁定信号和同步（同步）锁定信号。

7. 发明申请

WO2005114936A1 CARRIER PHASE AMBIGUITY CORRECTION VIA DC OFFSET 审中-公开
标题翻译：通过DC偏移进行载波相位校正
公开(公告)号：WO2005114936A1
公开(公告)日：2005-12-01
申请号：PCT/US2005/014428
申请日：2005-04-28
申请人： THOMSON LICENSING , EDDE, Gabriel, Alfred , MARKMAN, Ivonete
发明人： EDDE, Gabriel, Alfred , MARKMAN, Ivonete
IPC分类号： H04L25/06
CPC分类号： H04L25/067 , H04L25/061 , H04L27/02 , H04L2027/0046 , H04L2027/0063 , H04L2027/0091
摘要： A receiver comprises a carrier tracking loop (CTL), a filter, a look-up table and a rotator. The CTL provides a baseband signal having in-phase and quadrature signal components. The filter provides a DC-offset level associated with each component to the look-up table, which, in response thereto, provides a phase adjustment signal to the rotator. The latter then rotates the baseband signal as a function of the phase adjustment signal for correcting for carrier phase ambiguity.
摘要翻译：接收机包括载波跟踪环（CTL），滤波器，查找表和旋转器。 CTL提供具有同相和正交信号分量的基带信号。滤波器提供与每个组件相关联的DC偏移电平到查找表，该查找表响应于此，向旋转器提供相位调整信号。然后，后者根据用于校正载波相位模糊度的相位调整信号旋转基带信号。

8. 发明申请

WO2005114891A1 SYMBOL TIMING AMBIGUITY CORRECTION 审中-公开
标题翻译：符号时序精度校正
公开(公告)号：WO2005114891A1
公开(公告)日：2005-12-01
申请号：PCT/US2005/010518
申请日：2005-03-29
申请人： THOMSON LICENSING S.A. , MARKMAN, Ivonete , EDDE, Gabriel, Alfred
发明人： MARKMAN, Ivonete , EDDE, Gabriel, Alfred
IPC分类号： H04L7/02
CPC分类号： H04L25/03057 , H04L7/0054 , H04L7/042 , H04N5/211 , H04N5/455
摘要： A receiver comprises a demodulator for providing a demodulated signal having multiple signal samples per symbol period and a centroid calculator responsive to the demodulated signal for selecting at least one of the multiple signal samples for use in determining the channel virtual center. In addition, the centroid calculator may provide symbol timing information to the demodulator and include a limiter.
摘要翻译：接收机包括：解调器，用于提供每符号周期具有多个信号采样的解调信号;响应于解调信号的质心计算器，用于选择用于确定信道虚拟中心的多个信号样本中的至少一个。此外，重心计算器可以向解调器提供符号定时信息并且包括限幅器。

9. 发明公开

EP1495543A1 APPARATUS AND METHOD FOR SYMBOL TIMING RECOVERY 审中-公开
标题翻译： DEVICE AND METHOD FOR符号定时恢复
公开(公告)号：EP1495543A1
公开(公告)日：2005-01-12
申请号：EP03746649.7
申请日：2003-04-08
申请人： Thomson Licensing S.A.
发明人： EDDE, Gabriel, Alfred
IPC分类号： H03L7/00 , H04L27/22 , H04L7/00
CPC分类号： H04L7/0062 , H04L7/0334 , H04L7/0335
摘要： A symbol timing recovery detector (200) receives a sample stream, representing an input signal having successive symbol times sampled at successive sample times. The sample stream includes samples representing successive symbols alternating with samples representing transitions between surrounding symbol representative samples. The detector (200) includes a first circuit which determines a transition value from a transition representative sample and surrounding symbol representative samples. A second circuit determines the slope between the surrounding symbol representative samples. A third circuit generates a signal representing the phase error between the sample times and the symbol times of the input signal from the slope and the transition value.

10. 发明公开

EP1745625A1 CARRIER PHASE AMBIGUITY CORRECTION VIA DC OFFSET 有权
标题翻译：载波相位MEHRDEUTIGKEITSKORREKTUR关于直流偏移
公开(公告)号：EP1745625A1
公开(公告)日：2007-01-24
申请号：EP05740304.0
申请日：2005-04-28
申请人： Thomson Licensing
发明人： EDDE, Gabriel, Alfred , MARKMAN, Ivonete
IPC分类号： H04L25/06
CPC分类号： H04L25/067 , H04L25/061 , H04L27/02 , H04L2027/0046 , H04L2027/0063 , H04L2027/0091
摘要： A receiver comprises a carrier tracking loop (CTL), a filter, a look-up table and a rotator. The CTL provides a baseband signal having in-phase and quadrature signal components. The filter provides a DC-offset level associated with each component to the look-up table, which, in response thereto, provides a phase adjustment signal to the rotator. The latter then rotates the baseband signal as a function of the phase adjustment signal for correcting for carrier phase ambiguity.

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