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公开(公告)号：US08903016B2
公开(公告)日：2014-12-02
申请号：US13526160
申请日：2012-06-18
CPC分类号： H04B7/0417 , H04B7/0456 , H04B7/0669 , H04B17/336 , H04L1/06
摘要： Spatial spreading is performed in a multi-antenna system to randomize an “effective” channel observed by a receiving entity for each transmitted data symbol block. For a MIMO system, at a transmitting entity, data is processed (e.g., encoded, interleaved, and modulated) to obtain ND data symbol blocks to be transmitted in NM transmission spans, where ND≧1 and NM>1. The ND blocks are partitioned into NM data symbol subblocks, one subblock for each transmission span. A steering matrix is selected (e.g., in a deterministic or pseudo-random manner from among a set of L steering matrices, where L>1) for each subblock. Each data symbol subblock is spatially processed with the steering matrix selected for that subblock to obtain transmit symbols, which are further processed and transmitted via NT transmit antennas in one transmission span. The ND data symbol blocks are thus spatially processed with NM steering matrices and observe an ensemble of channels.
摘要翻译： 在多天线系统中执行空间扩展，以随机化接收实体针对每个发送的数据符号块观察到的“有效”信道。 对于MIMO系统，在发送实体处理（例如，编码，交织和调制）数据，以获得将以NM≥1和NM> 1的NM传输跨度发送的ND数据符号块。 ND块被划分为NM数据符号子块，每个传输跨度的一个子块。 对于每个子块，选择导向矩阵（例如，以确定性或伪随机方式从一组L个导引矩阵中，其中L> 1）。 每个数据符号子块用为该子块选择的导引矩阵进行空间处理，以获得在一个传输范围内经由NT个发射天线进一步处理和传输的发射符号。 因此，ND数据符号块用NM导引矩阵进行空间处理，并观察信道的集合。
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公开(公告)号：US20110182381A1
公开(公告)日：2011-07-28
申请号：US12693345
申请日：2010-01-25
申请人： Lizhong Zheng , Yufei Blankenship
发明人： Lizhong Zheng , Yufei Blankenship
CPC分类号： H04L1/0041 , H03M13/21
摘要： A system and method for digital communications with unbalanced codebooks is provided. A transmitter includes a channel encoder that generates an output codeword from an information vector provided by an information input, and a modulator/transmitter circuit coupled to the channel encoder. The modulator/transmitter circuit prepares the output codeword for transmission over a physical channel. The channel encoder encodes the information vector into an intermediate codeword using a first code and shapes the intermediate codeword into the output codeword having a desired distribution.
摘要翻译： 提供了一种用于与不平衡码本进行数字通信的系统和方法。 发射机包括信道编码器，其从由信息输入提供的信息向量生成输出码字，以及调制器/发射机电路耦合到信道编码器。 调制器/发射机电路准备输出码字以通过物理信道进行传输。 信道编码器使用第一码将信息矢量编码成中间码字，并将中间码字形成具有期望分布的输出码字。
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23.发明申请SYSTEMS AND METHODS FOR PROVIDING UNEQUAL ERROR PROTECTION USING EMBEDDED CODING 有权使用嵌入式编码提供不均匀错误保护的系统和方法公开(公告)号：US20100066573A1
公开(公告)日：2010-03-18
申请号：US12210082
申请日：2008-09-12
申请人： Huaming Wu , Lizhong Zheng
发明人： Huaming Wu , Lizhong Zheng
IPC分类号： H03M13/35
CPC分类号： H03M13/2966 , H03M13/1102 , H03M13/15 , H03M13/1515 , H03M13/23 , H03M13/25 , H03M13/356 , H03M13/41 , H03M13/6356 , H03M13/6362
摘要： A method for embedded encoding of at least two types of information is described. A first message and a second message are received. The types of a first encoder and a second encoder are determined. The rates of the first encoder and the second encoder are determined. A first codeword and a second codeword are generated. A mapping rule for the second codeword and a coding rule for the first codeword are determined. The second codeword is mapped into a plurality of symbols using the mapping rule. A third codeword is determined using the first codeword, the plurality of symbols, and the coding rule. The third codeword is then transmitted. The third codeword includes at least two types of information.
摘要翻译： 描述了用于至少两种类型的信息的嵌入式编码的方法。 接收到第一消息和第二消息。 确定第一编码器和第二编码器的类型。 确定第一编码器和第二编码器的速率。 生成第一码字和第二码字。 确定第二码字的映射规则和第一码字的编码规则。 使用映射规则将第二码字映射到多个符号。 使用第一码字，多个符号和编码规则确定第三码字。 然后发送第三码字。 第三码字包括至少两种类型的信息。
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公开(公告)号：US20050175115A1
公开(公告)日：2005-08-11
申请号：US11008865
申请日：2004-12-09
申请人： Jay Walton , Lizhong Zheng , John Ketchum , Mark Wallace , Steven Howard
发明人： Jay Walton , Lizhong Zheng , John Ketchum , Mark Wallace , Steven Howard
CPC分类号： H04B7/0417 , H04B7/0456 , H04B7/0669 , H04B17/336 , H04L1/06
摘要： Spatial spreading is performed in a multi-antenna system to randomize an “effective” channel observed by a receiving entity for each transmitted data symbol block. For a MIMO system, at a transmitting entity, data is processed (e.g., encoded, interleaved, and modulated) to obtain ND data symbol blocks to be transmitted in NM transmission spans, where ND≧1 and NM>1. The ND blocks are partitioned into NM data symbol subblocks, one subblock for each transmission span. A steering matrix is selected (e.g., in a deterministic or pseudo-random manner from among a set of L steering matrices, where L>1) for each subblock. Each data symbol subblock is spatially processed with the steering matrix selected for that subblock to obtain transmit symbols, which are further processed and transmitted via NT transmit antennas in one transmission span. The ND data symbol blocks are thus spatially processed with NM steering matrices and observe an ensemble of channels.
摘要翻译： 在多天线系统中执行空间扩展，以随机化接收实体针对每个发送的数据符号块观察到的“有效”信道。 对于MIMO系统，在发送实体处理（例如，编码，交织和调制）数据以获得N N个数据符号块，以在N M M中发送。 传输范围，其中N
= 1和N M M 1。 N N个块被划分为N个M个数据符号子块，每个传输跨度的一个子块。 对于每个子块，选择导向矩阵（例如，以确定性或伪随机方式从一组L个导引矩阵中，其中L> 1）。 利用为该子块选择的导引矩阵来对每个数据符号子块进行空间处理，以获得在一个传输跨度中通过N T个发射天线进一步处理和传输的发射符号。 N N个数据符号块因此用N M M导引矩阵进行空间处理并观察信道的整体。 -
公开(公告)号：US20050159735A1
公开(公告)日：2005-07-21
申请号：US10888804
申请日：2004-07-09
申请人： Jay Walton , Lizhong Zheng , John Ketchum , Mark Wallace , Steven Howard
发明人： Jay Walton , Lizhong Zheng , John Ketchum , Mark Wallace , Steven Howard
CPC分类号： F25D3/10 , A61B18/02 , A61B2017/00199 , A61B2018/0212 , A61B2018/0262 , A61B2018/0268 , F25B9/02 , F25B2700/13 , F25D16/00 , F25D2400/36
摘要： An apparatus and method for automatic operation of a refrigeration system to provide refrigeration power to a catheter for tissue ablation or mapping. The primary refrigeration system can be open loop or closed loop, and a precool loop will typically be closed loop. Equipment and procedures are disclosed for bringing the system to the desired operational state, for controlling the operation by controlling refrigerant flow rate, for performing safety checks, and for achieving safe shutdown. The catheter-based system for performing a cryoablation procedure uses a precooler to lower the temperature of a fluid refrigerant to a sub-cool temperature (−40° C.) at a working pressure (400 psi). The sub-cooled fluid is then introduced into a supply line of the catheter. Upon outflow of the primary fluid from the supply line, and into a tip section of the catheter, the fluid refrigerant boils at an outflow pressure of approximately one atmosphere, at a temperature of about −88° C. In operation, the working pressure is computer controlled to obtain an appropriate outflow pressure for the coldest possible temperature in the tip section.
摘要翻译： 一种用于自动操作制冷系统以向用于组织消融或映射的导管提供制冷功率的装置和方法。 主要制冷系统可以是开环或闭环，并且预冷循环通常将是闭环的。 公开了用于使系统达到所需操作状态的设备和程序，用于通过控制制冷剂流量来控制操作，用于执行安全检查和实现安全关闭。 用于执行冷冻消融程序的基于导管的系统使用预冷器来在工作压力（400psi）下将流体制冷剂的温度降低至亚冷的温度（-40℃）。 然后将次冷流体引入导管的供应管线。 在主要流体从供应管路流出并进入导管的尖端部分时，流体制冷剂在大约一个大气压的流出压力下沸腾，温度约为-88℃。在操作中，工作压力为 计算机控制以获得适当的流出压力，用于在尖端部分中最冷的温度。
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公开(公告)号：US08204149B2
公开(公告)日：2012-06-19
申请号：US11008865
申请日：2004-12-09
CPC分类号： H04B7/0417 , H04B7/0456 , H04B7/0669 , H04B17/336 , H04L1/06
摘要： Spatial spreading is performed in a multi-antenna system to randomize an “effective” channel observed by a receiving entity for each transmitted data symbol block. For a MIMO system, at a transmitting entity, data is processed (e.g., encoded, interleaved, and modulated) to obtain ND data symbol blocks to be transmitted in NM transmission spans, where ND≧1 and NM>1. The ND blocks are partitioned into NM data symbol subblocks, one subblock for each transmission span. A steering matrix is selected (e.g., in a deterministic or pseudo-random manner from among a set of L steering matrices, where L>1) for each subblock. Each data symbol subblock is spatially processed with the steering matrix selected for that subblock to obtain transmit symbols, which are further processed and transmitted via NT transmit antennas in one transmission span. The ND data symbol blocks are thus spatially processed with NM steering matrices and observe an ensemble of channels.
摘要翻译： 在多天线系统中执行空间扩展，以随机化接收实体针对每个发送的数据符号块观察到的“有效”信道。 对于MIMO系统，在发送实体处理（例如，编码，交织和调制）数据，以获得将以NM≥1和NM> 1的NM传输跨度发送的ND数据符号块。 ND块被划分为NM数据符号子块，每个传输跨度的一个子块。 对于每个子块，选择导向矩阵（例如，以确定性或伪随机方式从一组L个导引矩阵中，其中L> 1）。 每个数据符号子块用为该子块选择的导引矩阵进行空间处理，以获得在一个传输范围内经由NT个发射天线进一步处理和传输的发射符号。 因此，ND数据符号块用NM导引矩阵进行空间处理，并观察信道的集合。
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公开(公告)号：US20120056764A1
公开(公告)日：2012-03-08
申请号：US12875895
申请日：2010-09-03
申请人： Lizhong Zheng , Yufei Blankenship
发明人： Lizhong Zheng , Yufei Blankenship
IPC分类号： H03M13/03
CPC分类号： H03M13/033 , H03M13/036 , H03M13/13 , H03M13/2903 , H03M13/2906 , H03M13/2927 , H03M13/3761 , H03M13/3776
摘要： A system and method for preserving neighborhoods in codes are provided. A method for transmitting information includes receiving an information string to transmit, generating a first address and a second address from the information string, encoding the first address and the second address with a layered code encoder, thereby producing a codeword and transmitting the codeword. The generating is based on a linear block code.
摘要翻译： 提供了一种用于在代码中保留邻域的系统和方法。 用于发送信息的方法包括：接收信息串以发送信息，从信息串生成第一地址和第二地址，用分层码编码器对第一地址和第二地址进行编码，从而产生码字并发送码字。 该生成基于线性块代码。
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28.发明授权Systems and methods for embedding a first signal in the coding of a second signal 有权用于在第二信号的编码中嵌入第一信号的系统和方法公开(公告)号：US07843989B2
公开(公告)日：2010-11-30
申请号：US11768789
申请日：2007-06-26
申请人： Huaming Wu , Lizhong Zheng
发明人： Huaming Wu , Lizhong Zheng
IPC分类号： H04L27/30
CPC分类号： H04L1/0028 , H04L1/1671
摘要： A method for embedding a first signal in the coding of a second signal is described. A value of the first signal is determined. A codebook based on the value of the first signal is generated. A second signal is encoded using a codeword from the generated codebook. The encoded second signal is modulated into a plurality of symbols, wherein the symbols are distributed according to the value of the first signal. The modulated symbols are inserted into one or more time slots of a sequence.
摘要翻译： 描述了在第二信号的编码中嵌入第一信号的方法。 确定第一信号的值。 产生基于第一信号的值的码本。 使用来自生成的码本的码字来对第二信号进行编码。 编码的第二信号被调制成多个符号，其中符号根据第一信号的值被分配。 调制符号被插入到序列的一个或多个时隙中。
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29.发明申请SYSTEMS AND METHODS FOR EMBEDDING A FIRST SIGNAL IN THE CODING OF A SECOND SIGNAL 有权用于在第二信号编码中嵌入第一信号的系统和方法公开(公告)号：US20090003420A1
公开(公告)日：2009-01-01
申请号：US11768789
申请日：2007-06-26
申请人： Huaming Wu , Lizhong Zheng
发明人： Huaming Wu , Lizhong Zheng
IPC分类号： H04B1/38
CPC分类号： H04L1/0028 , H04L1/1671
摘要： A method for embedding a first signal in the coding of a second signal is described. A value of the first signal is determined. A codebook based on the value of the first signal is generated. A second signal is encoded using a codeword from the generated codebook. The encoded second signal is modulated into a plurality of symbols, wherein the symbols are distributed according to the value of the first signal. The modulated symbols are inserted into one or more time slots of a sequence.
摘要翻译： 描述在第二信号的编码中嵌入第一信号的方法。 确定第一信号的值。 产生基于第一信号的值的码本。 使用来自生成的码本的码字对第二信号进行编码。 编码的第二信号被调制成多个符号，其中符号根据第一信号的值被分配。 调制符号被插入到序列的一个或多个时隙中。
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