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公开(公告)号：US20050117070A1
公开(公告)日：2005-06-02
申请号：US10986015
申请日：2004-11-12
申请人： Yiyan Wu , Xianbin Wang , Sebastien Lafleche , Benoit Ledoux , Bernard Caron
发明人： Yiyan Wu , Xianbin Wang , Sebastien Lafleche , Benoit Ledoux , Bernard Caron
CPC分类号： H04N21/23614 , H04H20/30 , H04H20/67 , H04H20/72 , H04H60/74 , H04N21/235 , H04N21/26241 , H04N21/4348 , H04N21/438 , H04N21/6112
摘要： The invention relates to a transmitter identification system, which utilizes an identification signal embedded into a digital television signal, enabling the transmitter of origin to be identified at a receiving station. Ideally the identification signal is an orthogonal pseudo-random sequence time synchronized to the signal frame structure of the digital television signal. Particularly designed for single frequency networks, identification of the various transmitted signals enables the network to be tuned to eliminate or minimize multi-path effects at certain locations, which receive transmissions from various transmitters.
摘要翻译： 本发明涉及一种发射机识别系统，其利用嵌入到数字电视信号中的识别信号，使得能够在接收站识别原始发射机。 理想地，识别信号是与数字电视信号的信号帧结构同步的正交伪随机序列。 特别设计用于单频网络，各种传输信号的识别使得能够调谐网络以消除或最小化接收来自各种发射机的传输的某些位置处的多路径效应。
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公开(公告)号：US07307666B2
公开(公告)日：2007-12-11
申请号：US10986015
申请日：2004-11-12
申请人： Yiyan Wu , Xianbin Wang , Sebastien Lafleche , Benoit Ledoux , Bernard Caron
发明人： Yiyan Wu , Xianbin Wang , Sebastien Lafleche , Benoit Ledoux , Bernard Caron
CPC分类号： H04N21/23614 , H04H20/30 , H04H20/67 , H04H20/72 , H04H60/74 , H04N21/235 , H04N21/26241 , H04N21/4348 , H04N21/438 , H04N21/6112
摘要： The invention relates to a transmitter identification system, which utilizes an identification signal embedded into a digital television signal, enabling the transmitter of origin to be identified at a receiving station. Ideally the identification signal is an orthogonal pseudo-random sequence time synchronized to the signal frame structure of the digital television signal. Particularly designed for single frequency networks, identification of the various transmitted signals enables the network to be tuned to eliminate or minimize multi-path effects at certain locations, which receive transmissions from various transmitters.
摘要翻译： 本发明涉及一种发射机识别系统，其利用嵌入到数字电视信号中的识别信号，使得能够在接收站识别原始发射机。 理想地，识别信号是与数字电视信号的信号帧结构同步的正交伪随机序列。 特别设计用于单频网络，各种传输信号的识别使得能够调谐网络以消除或最小化接收来自各种发射机的传输的某些位置处的多路径效应。
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3.发明授权Digital television transmitter identification system using pseudo-random sequences 有权数字电视发射机识别系统采用伪随机序列公开(公告)号：US07202914B2
公开(公告)日：2007-04-10
申请号：US10765138
申请日：2004-01-28
申请人： Yiyan Wu , Xianbin Wang , Sebastien Lafleche , Benoit Ledoux , Bernard Caron
发明人： Yiyan Wu , Xianbin Wang , Sebastien Lafleche , Benoit Ledoux , Bernard Caron
CPC分类号： H01Q3/08 , H04H20/30 , H04H20/67 , H04H20/72 , H04H60/74 , H04N21/235 , H04N21/23614 , H04N21/26241 , H04N21/4348 , H04N21/438 , H04N21/6112
摘要： The invention relates to a transmitter identification system, which utilizes an identification signal embedded into a digital television signal, enabling the transmitter of origin to be identified at a receiving station. Ideally the identification signal is an orthogonal pseudo-random sequence time synchronized to the signal frame structure of the digital television signal. Particularly designed for single frequency networks, identification of the various transmitted signals enables the network to be tuned to eliminate or minimize multi-path effects at certain locations, which receive transmissions from various transmitters.
摘要翻译： 本发明涉及一种发射机识别系统，其利用嵌入到数字电视信号中的识别信号，使得能够在接收站识别原始发射机。 理想地，识别信号是与数字电视信号的信号帧结构同步的正交伪随机序列。 特别设计用于单频网络，各种传输信号的识别使得能够调谐网络以消除或最小化接收来自各种发射机的传输的某些位置处的多路径效应。
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4.发明授权Method and system for tiered digital television terrestrial broadcasting services using multi-bit-stream frequency interleaved OFDM 有权使用多位流频率交织OFDM的分层数字电视地面广播业务的方法和系统公开(公告)号：US06944120B2
公开(公告)日：2005-09-13
申请号：US09832799
申请日：2001-04-12
申请人： Yiyan Wu , Bernard Caron
发明人： Yiyan Wu , Bernard Caron
CPC分类号： H04N7/0803 , H04L27/2608
摘要： The invention relates to a method and system for tiered digital broadcasting. A plurality of different bit streams representing digital data targeted for different services is received from a data source. Each bit-stream of the plurality of different bit-streams is modulated on a plurality of OFDM sub-carriers. Sub-carriers of different bit streams have different spectral efficiency. The parallel OFDM sub-carriers of each bit-stream are frequency interleaved with the parallel OFDM sub-carriers of the other bit streams of the plurality of different bit streams such that the parallel OFDM sub-carriers of each bit are spread over an entire available frequency spectrum. The interleaved sub-carriers are transformed into time domain for providing a frequency interleaved OFDM signal. The OFDM signal is then upconverted to the frequency of a broadcasting channel and transmitted. The invention enables a broadcasting station to transmit multiple bit streams with different spectral efficiency using one RF channel.
摘要翻译： 本发明涉及分层数字广播的方法和系统。 从数据源接收表示针对不同业务的数字数据的多个不同比特流。 多个不同比特流的每个比特流在多个OFDM子载波上进行调制。 不同比特流的子载波具有不同的频谱效率。 每个比特流的并行OFDM子载波与多个不同比特流中的其他比特流的并行OFDM子载波进行频率交织，使得每个比特的并行OFDM子载波在整个可用 频谱。 交织的子载波被变换成时域以提供频率交织的OFDM信号。 然后将OFDM信号上变频到广播频道的频率并发送。 本发明使得广播电台能够使用一个RF信道来传输具有不同频谱效率的多个比特流。
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公开(公告)号：US6138800A
公开(公告)日：2000-10-31
申请号：US849532
申请日：1997-09-24
CPC分类号： B61H11/14
摘要： A braking device for a railroad vehicle including traction bars is arranged to apply a braking pad on a braking surface affixed to a wheel of the vehicle. The braking device includes a reaction member, at least one lever arranged to cooperate with the reaction member, connecting devices between the traction bars means and the lever, the braking pad being borne by the lever to be applied on the braking surface by pivoting the lever under the action of the traction bars and of the reaction member.
摘要翻译： PCT No.PCT / FR95 / 01674 Sec。 371日期：1997年9月24日 102（e）1997年9月24日PCT 1995年12月15日PCT PCT。 公开号WO96 / 19372 日期1996年6月27日包括牵引杆的铁路车辆的制动装置被布置成将制动垫施加在固定在车辆车轮上的制动表面上。 所述制动装置包括反作用件，至少一个杠杆，其布置成与所述反作用构件配合，所述牵引杆装置与所述杠杆之间的连接装置，所述制动垫由所述杠杆承载以通过枢转所述杠杆 在牵引杆和反作用件的作用下。
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公开(公告)号：US6116382A
公开(公告)日：2000-09-12
申请号：US952508
申请日：1998-01-28
摘要： The invention relates a braking device for a railroad vehicle including traction structure (1, 2) arranged to apply a braking pad on a braking surface affixed to a wheel of the vehicle. It includes a reaction member (11, 20), at least one lever (6; 6', 6"; 33, 33') arranged to cooperate with the reaction member, connecting structure (23, 41) between the traction structure and the lever, the braking pad being borne by the lever to be applied on the braking surface by pivoting of the lever under the action of the traction structure and of the reaction member.
摘要翻译： PCT No.PCT / FR96 / 00810 Sec。 371日期1998年1月28日 102（e）日期1998年1月28日PCT提交1996年5月30日PCT公布。 出版物WO96 / 38330 PCT 日期1996年12月5日本发明涉及一种包括牵引结构（1,2）的铁路车辆的制动装置，该牵引结构被布置成将制动垫施加在固定在车辆车轮上的制动表面上。 其包括反作用件（11,20），至少一个杠杆（6; 6'，6“; 33,33'），其设置成与所述反作用件配合，所述牵引结构和所述牵引结构之间的连接结构（23,41） 所述杠杆，所述制动垫由所述杠杆承载以通过在所述牵引结构和所述反作用构件的作用下枢转所述杠杆而施加在所述制动表面上。
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公开(公告)号：US5345754A
公开(公告)日：1994-09-13
申请号：US37564
申请日：1993-03-22
CPC分类号： F16B7/0426 , F16G13/14 , F16G15/02
摘要： A process for assembling two facing extremities of members of detachable links and the detachable link formed by the process wherein two facing extremities of members are assembled using two half-shells joined by assembly components according to the following steps:forming reliefs either on the inside surface of the half-shells, or on the outside surface of the member extremities with the other surface remaining smooth;mounting the two half-shells on the member extremities;forging reliefs on the initially smooth components by direct stamping onto the components displaying the reliefs;joining the two half-shells by the said assembly components.
摘要翻译： 一种用于组装可拆卸连杆件的两个相对端部的方法和由该过程形成的可拆卸连杆，其中两个相对的部件的两个端部根据以下步骤由组装部件连接的两个半壳组装：在内表面上形成浮雕 的半壳，或者在其他表面的外表面上保持光滑; 将两个半壳安装在构件四肢上; 通过直接冲压到显示浮雕的部件上，在初始平滑的部件上锻造浮雕; 通过所述组件部件连接两个半壳。
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