公开(公告)号：US07947247B2

公开(公告)日：2011-05-24

申请号：US11693203

申请日：2007-03-29

申请人： Howard Tennent ,  Hai-feng Zhang ,  Jun Ma

发明人： Howard Tennent ,  Hai-feng Zhang ,  Jun Ma

IPC分类号： B82B3/00

CPC分类号： D01F9/127 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/152 ,  C01B32/16 ,  C01B32/162 ,  C01B2202/02 ,  C01B2202/08 ,  C01B2202/36 ,  Y10S423/12 ,  Y10S977/842 ,  Y10T428/2982 ,  Y10T428/30

摘要： Methods of preparing single walled carbon nanotubes are provided. An arrangement comprising one or more layers of fullerene in contact with one side of a metal layer and a solid carbon source in contact with the other side of metal layer is prepared. The fullerene/metal layer/solid carbon source arrangement is then heated to a temperature below where the fullerenes sublime. Alternatively, a non-solid carbon source may be used in place of a solid carbon source or the metal layer may simply be saturated with carbon atoms. A multiplicity of single walled carbon nanotubes are grown on the fullerene side of the metal layer, wherein at least 80% of the single walled carbon nanotubes in said multiplicity have a diameter within ±5% of a single walled carbon nanotube diameter D present in said multiplicity, said diameter D being in the range between 0.6-2.2 nm.

摘要翻译： 提供制备单壁碳纳米管的方法。 制备包括与金属层的一侧接触的一层或多层富勒烯和与金属层的另一侧接触的固体碳源的布置。 然后将富勒烯/金属层/固体碳源装置加热至低于富勒烯升华的温度。 或者，可以使用非固体碳源代替固体碳源，或者金属层可以简单地用碳原子饱和。 在金属层的富勒烯侧生长多个单壁碳纳米管，其中所述多重性中的至少80％的单壁碳纳米管的直径在所述多层中存在的单壁碳纳米管直径D的±5％以内 多重性，所述直径D在0.6-2.2nm之间的范围内。

公开(公告)号：US07944999B2

公开(公告)日：2011-05-17

申请号：US12062774

申请日：2008-04-04

申请人： Jun Ma ,  Nabil Yousef

发明人： Jun Ma ,  Nabil Yousef

IPC分类号： H04L27/00

CPC分类号： H04L27/2657 ,  H04L27/2662 ,  H04L27/2675

摘要： A technique for estimating a carrier frequency offset and a timing offset in a MediaFLO™ (Forward Link Only) system, wherein the method comprises receiving Orthogonal Frequency Division Multiplexing (OFDM) symbols; interpolating pilots on odd or even symbols of the received OFDM symbols; determining a phase difference between two successive symbols using the interpolated pilots; obtaining an estimate of the carrier frequency offset and the timing offset from the determined phase difference between two successive symbols; and correcting a sampling frequency in accordance with the estimated carrier frequency offset and timing offset.

摘要翻译： 一种用于估计MediaFLO TM（仅前向链路）系统中的载波频率偏移和定时偏移的技术，其中所述方法包括接收正交频分复用（OFDM）符号; 在所接收的OFDM符号的奇数或偶数符号上内插导频; 使用内插导频确定两个连续符号之间的相位差; 从两个连续符号之间确定的相位差获得载波频率偏移和定时偏移的估计; 以及根据估计的载波频率偏移和定时偏移来校正采样频率。

公开(公告)号：US07941117B2

公开(公告)日：2011-05-10

申请号：US12039806

申请日：2008-02-29

申请人： Jun Ma ,  Ahmed Eltawil ,  Xiaoyu Fu

发明人： Jun Ma ,  Ahmed Eltawil ,  Xiaoyu Fu

IPC分类号： H04B1/10

CPC分类号： H04B1/30 ,  H04L27/3863 ,  H04L27/3872

摘要： A method of processing an in-phase signal component and a quadrature signal component of a low intermediate frequency (LIF) signal includes estimating and correcting an amplitude imbalance between a digitized in-phase signal component and a digitized quadrature signal component at a first point in time, and estimating and correcting a phase imbalance between the digitized in-phase signal component and the digitized quadrature signal component at a second point in time in response to the correcting process. The digitized in-phase signal component corresponds to the in-phase signal component at the first point in time and the digitized quadrature signal component corresponds to the quadrature signal component at the first point in time. The second point in the time is subsequent to the first point in time.

摘要翻译： 处理低中频（LIF）信号的同相信号分量和正交信号分量的方法包括：估计和校正数字化的同相信号分量与数字化正交信号分量之间的振幅不平衡 时间，并且响应于校正处理，在第二时间点估计和校正数字化同相信号分量和数字化正交信号分量之间的相位不平衡。 数字化的同相信号分量对应于第一时间点的同相信号分量，数字化的正交信号分量对应于第一时间点的正交信号分量。 第二点在第一时间点之后。

公开(公告)号：US07912157B2

公开(公告)日：2011-03-22

申请号：US12062661

申请日：2008-04-04

申请人： Yongru Gu ,  Jun Ma

发明人： Yongru Gu ,  Jun Ma

IPC分类号： H04L27/06

CPC分类号： H04L27/2657 ,  H04L27/0014 ,  H04L27/2662 ,  H04L2027/0026 ,  H04L2027/0067

摘要： Timing and frequency offset processing in sub-carriers is performed in an Integrated Services Digital Broadcasting-Terrestrial (ISDB-T) receiver system. Sub-carriers are divided into two sub-sets, where the sub-sets contain an equal number of sub-carriers. Subsequently bad sub-carriers are removed, if present, from first sub-set of the sub-sets, and corresponding sub-carriers from a second sub-set of the sub-sets are also removed. Further, a phase difference on each sub-carrier from each sub-set is computed, and mean phase differences of each of the sub-sets are computed. Furthermore, frequency offset is computed by averaging the mean phase differences of the sets.

摘要翻译： 子载波中的定时和频率偏移处理在综合业务数字广播地面（ISDB-T）接收机系统中执行。 子载波被分成两个子集，其中子集包含相等数量的子载波。 随后，从子集的第一子集中去除坏子载波（如果存在），并且还删除来自子集的第二子集的对应子载波。 此外，计算每个子集合中的每个子载波的相位差，并且计算每个子集的平均相位差。 此外，通过对集合的平均相位差进行平均来计算频率偏移。

公开(公告)号：US07912142B2

公开(公告)日：2011-03-22

申请号：US12062650

申请日：2008-04-04

申请人： Jun Ma ,  Nabil Yousef ,  Li Liu

发明人： Jun Ma ,  Nabil Yousef ,  Li Liu

IPC分类号： H04B15/00

CPC分类号： H04L25/0328

摘要： An apparatus, method, and system for reducing a C/N in an OFDM receiver using diversity combining techniques in the presence of ICI, wherein the apparatus comprises an encoded data estimator adapted to estimate data received in the OFDM receiver; a pair of ICI estimators operatively connected to the encoded data estimator and adapted to calculate an inter-carrier-interference term of the data; and a pair of diversity combining equalizers adapted to compensate multi-path interference of the data, wherein a first one of the diversity combining equalizers is operatively connected to the encoded data estimator, and a second one of the diversity combining equalizers is operatively connected to the pair of ICI estimators. The diversity combining equalizer may comprise a MRC diversity combining equalizer. Preferably, the encoded data estimator, the pair of ICI estimators, and the pair of diversity combining equalizers are implemented on a DVB-T/H diversity SoC.

摘要翻译： 一种用于在存在ICI的情况下使用分集组合技术减少OFDM接收机中的C / N的装置，方法和系统，其中所述装置包括适于估计在所述OFDM接收机中接收的数据的编码数据估计器; 一对可操作地连接到所述编码数据估计器并且适于计算所述数据的载波间干扰项的ICI估计器; 以及一对组合均衡器的组合均衡器，适于补偿数据的多径干扰，其中分集组合均衡器中的第一个可操作地连接到编码数据估计器，并且分集组合均衡器中的第二个可操作地连接到 一对ICI估计。 分集组合均衡器可以包括MRC分集组合均衡器。 优选地，编码数据估计器，ICI估计器对和分集组合均衡器对在DVB-T / H分集SoC上实现。

公开(公告)号：US20110044158A1

公开(公告)日：2011-02-24

申请号：US12543671

申请日：2009-08-19

申请人： Zhifeng Tao ,  Philip V. Orlik ,  Jun Ma ,  Ye Li ,  Jinyun Zhang

发明人： Zhifeng Tao ,  Philip V. Orlik ,  Jun Ma ,  Ye Li ,  Jinyun Zhang

IPC分类号： H04J1/12 ,  H04B7/14

CPC分类号： H04B7/15592 ,  H04B7/15564 ,  H04L27/2601

摘要： Cross-talk is canceled in a cooperative wireless relay network that includes a base station (BS), a relay station (RS), and a mobile station (MS). A coupling channel between a transmit antenna and a receive antenna colocated at the RS is estimated. Cross-talk interference determination is based on a previous transmitted signal by the transmit antenna, and the coupling channel. The cross-talk interference is subtracted from a currently received signal by the receive antenna to obtain a residual signal. The residual signal is then transmitted as a next transmitted signal by the transmit antenna.

摘要翻译： 在包括基站（BS），中继站（RS）和移动站（MS）的协作无线中继网络中，串扰被取消。 估计发射天线与在RS共同定位的接收天线之间的耦合信道。 串扰干扰确定基于发射天线的先前发射信号和耦合信道。 由接收天线从当前接收到的信号中减去串扰干扰，以获得残留信号。 然后由发射天线作为下一个发射信号发送残余信号。

公开(公告)号：US07889803B2

公开(公告)日：2011-02-15

申请号：US12034717

申请日：2008-02-21

申请人： Yongru Gu ,  Jun Ma

发明人： Yongru Gu ,  Jun Ma

IPC分类号： H04L27/28

CPC分类号： H04L25/0224 ,  H04L25/0204 ,  H04L25/0232 ,  H04L27/2657 ,  H04L27/2662 ,  H04L27/2675 ,  H04L27/2676 ,  H04L27/2695

摘要： A method and apparatus for estimating timing and frequency offsets in an ISDB-T and ISDB-TSB receiver. In different embodiments, the method comprises estimating timing and frequency offsets by different estimation processes; assigning weights to the timing and frequency offsets according to the channel condition; and calculating timing and frequency offsets using the estimates of timing and frequency offsets and the weights.

摘要翻译： 用于估计ISDB-T和ISDB-TSB接收机中的定时和频率偏移的方法和装置。 在不同的实施例中，该方法包括通过不同的估计过程估计定时和频率偏移; 根据信道条件向定时和频率偏移分配权重; 以及使用定时和频率偏移和权重的估计来计算定时和频率偏移。

公开(公告)号：US20110025588A1

公开(公告)日：2011-02-03

申请号：US12937162

申请日：2009-04-13

申请人： Jun Ma ,  Zhihua Ling ,  Xixi Luo

发明人： Jun Ma ,  Zhihua Ling ,  Xixi Luo

IPC分类号： G09G3/36

CPC分类号： G02F1/133555

摘要： A liquid crystal display device (1) includes an upper substrate (100), a lower substrate (200) and a liquid crystal layer (300) between the two substrates (100, 200). The upper substrate (100) has a common electrode (110). The lower substrate (200) has pixel electrodes (200) and there are many unit pixel regions defined on the lower substrate (200). Each unit pixel region has a transmissive region (230) and a reflective region (240). Liquid crystal molecules of the liquid crystal layer (300) are aligned perpendicularly to the surfaces of the substrates (100, 200) when no voltage is applied. There are many irregular protrusions (220) on the pixel electrodes (210). In the reflective region (240), there is a reflective metal layer (250) on the irregular protrusions (220).

摘要翻译： 液晶显示装置（1）包括在两个基板（100,200）之间的上基板（100），下基板（200）和液晶层（300）。 上基板（100）具有公共电极（110）。 下基板（200）具有像素电极（200），并且在下基板（200）上限定有许多单位像素区域。 每个单位像素区域具有透射区域（230）和反射区域（240）。 当没有施加电压时，液晶层（300）的液晶分子垂直于基板（100,200）的表面排列。 在像素电极（210）上存在许多不规则突起（220）。 在反射区域（240）中，在不规则突起（220）上存在反射金属层（250）。

公开(公告)号：US20110002838A1

公开(公告)日：2011-01-06

申请号：US11693203

申请日：2007-03-29

申请人： Howard Tennent ,  Hai-feng Zhang ,  Jun Ma

发明人： Howard Tennent ,  Hai-feng Zhang ,  Jun Ma

IPC分类号： D01F9/12 ,  B32B9/00 ,  C01B31/02

CPC分类号： D01F9/127 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/152 ,  C01B32/16 ,  C01B32/162 ,  C01B2202/02 ,  C01B2202/08 ,  C01B2202/36 ,  Y10S423/12 ,  Y10S977/842 ,  Y10T428/2982 ,  Y10T428/30

摘要： Methods of preparing single walled carbon nanotubes are provided. An arrangement comprising one or more layers of fullerene in contact with one side of a metal layer and a solid carbon source in contact with the other side of metal layer is prepared. The fullerene/metal layer/solid carbon source arrangement is then heated to a temperature below where the fullerenes sublime. Alternatively, a non-solid carbon source may be used in place of a solid carbon source or the metal layer may simply be saturated with carbon atoms. A multiplicity of single walled carbon nanotubes are grown on the fullerene side of the metal layer, wherein at least 80% of the single walled carbon nanotubes in said multiplicity have a diameter within ±5% of a single walled carbon nanotube diameter D present in said multiplicity, said diameter D being in the range between 0.6-2.2 nm.

摘要翻译： 提供制备单壁碳纳米管的方法。 制备包括与金属层的一侧接触的一层或多层富勒烯和与金属层的另一侧接触的固体碳源的布置。 然后将富勒烯/金属层/固体碳源装置加热至低于富勒烯升华的温度。 或者，可以使用非固体碳源代替固体碳源，或者金属层可以简单地用碳原子饱和。 在金属层的富勒烯侧生长多个单壁碳纳米管，其中所述多重性中的至少80％的单壁碳纳米管的直径在所述多层中存在的单壁碳纳米管直径D的±5％以内 多重性，所述直径D在0.6-2.2nm之间的范围内。

公开(公告)号：USD628071S1

公开(公告)日：2010-11-30

申请号：US29345857

申请日：2009-10-23

申请人： Xin-Yue He ,  Qian Li ,  Jun Ma ,  Wan-Ling Shih

设计人： Xin-Yue He ,  Qian Li ,  Jun Ma ,  Wan-Ling Shih