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1. 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。

2. 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。

3. 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.

4. 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。

5. 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。

6. 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.

7. 发明公开

EP1745586A1 CARRIER PHASE AMBIGUITY CORRECTION 有权
标题翻译：载波相位模糊校正
公开(公告)号：EP1745586A1
公开(公告)日：2007-01-24
申请号：EP05731054.2
申请日：2005-03-29
申请人： Thomson Licensing S.A.
发明人： MARKMAN, Ivonete , EDDE, Gabriel, Alfred
IPC分类号： H04L7/02 , H04L7/04 , H04L27/22 , H04N5/44
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的载波相位以及去除解调器中的载波相位模糊度。另外，质心计算器可以包括限制器。

8. 发明授权

EP1745586B1 CARRIER PHASE AMBIGUITY CORRECTION 有权
标题翻译：载波相位MEHRDEUTIGEITSKORREKTUR
公开(公告)号：EP1745586B1
公开(公告)日：2010-01-20
申请号：EP05731054.2
申请日：2005-03-29
申请人： THOMSON Licensing S.A.
发明人： MARKMAN, Ivonete , EDDE, Gabriel, Alfred
IPC分类号： H04L7/02 , H04L7/04 , H04L27/22 , H04N5/44
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.

9. 发明公开

EP1566056A2 A CARRIER TRACKING LOOP LOCK DETECTOR 审中-公开
标题翻译：载波跟踪回路锁定探测器
公开(公告)号：EP1566056A2
公开(公告)日：2005-08-24
申请号：EP03783316.7
申请日：2003-11-12
申请人： Thomson Licensing S.A.
发明人： MARKMAN, Ivonete , EDDE, Gabriel, Alfred
IPC分类号： H04N5/455
CPC分类号： H04L27/0014 , H04L27/02 , H04L27/066 , H04L2027/0057 , H04L2027/0073 , H04N5/4401
摘要： An ATSC (Advanced Television Systems Committee) VSB (Vestigial Sideband) receiver (15) includes a carrier tracking loop (CTL) (115) for processing a received ATSC VSB signal and a CTL lock detector (200). The CTL lock detector includes an averaging filter (135) for averaging the down-converted received ATSC VSB signal to provide a DC offset, an estimator (130) for providing an estimate of the DC offset, and a comparator (140) for providing a lock signal as a function of a comparison between the estimate of the DC offset and the DC offset, wherein the lock signal is representative of either a locked condition or an unlocked condition of the CTL.
摘要翻译： ATSC（高级电视系统委员会）VSB（残留边带）接收机（15）包括用于处理接收到的ATSC VSB信号的载波跟踪环路（CTL）（115）和CTL锁定检测器（200）。 CTL锁定检测器包括用于对经下变换的接收到的ATSC VSB信号进行平均以提供DC偏移的平均滤波器（135），用于提供DC偏移的估计的估计器（130），以及用于提供锁定信号作为DC偏移估计和DC偏移之间的比较的函数，其中锁定信号代表CTL的锁定状态或解锁状态。

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