公开(公告)号：US07729462B2

公开(公告)日：2010-06-01

申请号：US11615274

申请日：2006-12-22

申请人： Jun Ma ,  Chaoliang T. Chen ,  Nabil R. Yousef

发明人： Jun Ma ,  Chaoliang T. Chen ,  Nabil R. Yousef

IPC分类号： H04L7/00

CPC分类号： H04L27/2655 ,  H04L27/266 ,  H04L27/2662 ,  H04L27/2685 ,  H04N21/4382 ,  H04N21/64315

摘要： A system and method of performing re-synchronization for a Digital Video Broadcasting over Handheld (DVB-H) receiver comprises performing a time division multiplexing (TDM) data burst transmission sequence on bits of data received by the DVB-H receiver; performing a data bit re-synchronization sequence on the DVB-H receiver; and reducing a re-acquisition time at every stage of the data bit re-synchronization sequence, wherein the reducing process results in a reduction in the time to perform the re-synchronization for the DVB-H receiver, wherein the reduction in the time to perform the re-synchronization for the DVB-H receiver is greater than one-half of the time required to perform the re-synchronization for the DVB-H receiver absent the reducing of the re-acquisition time at every stage of the data bit re-synchronization sequence.

摘要翻译： 对DVB-H数字视频广播（DVB-H）接收机执行重新同步的系统和方法包括对由DVB-H接收机接收的数据的比特执行时分复用（TDM）数据突发传输序列; 在DVB-H接收机上执行数据比特重新同步序列; 并且在数据比特重新同步序列的每个阶段减少重新采集时间，其中减少处理导致对DVB-H接收机执行重新同步的时间的减少，其中将时间缩短 执行DVB-H接收机的重新同步大于执行DVB-H接收机的重新同步所需的时间的一半，而不需要在数据比特的每个阶段减少重新获取时间 - 同步序列。

公开(公告)号：US20080152018A1

公开(公告)日：2008-06-26

申请号：US11615274

申请日：2006-12-22

申请人： Jun Ma ,  Chaoliang T. Chen ,  Nabil R. Yousef

发明人： Jun Ma ,  Chaoliang T. Chen ,  Nabil R. Yousef

IPC分类号： H04N7/54

CPC分类号： H04L27/2655 ,  H04L27/266 ,  H04L27/2662 ,  H04L27/2685 ,  H04N21/4382 ,  H04N21/64315

摘要： A system and method of performing re-synchronization for a Digital Video Broadcasting over Handheld (DVB-H) receiver comprises performing a time division multiplexing (TDM) data burst transmission sequence on bits of data received by the DVB-H receiver; performing a data bit re-synchronization sequence on the DVB-H receiver; and reducing a re-acquisition time at every stage of the data bit re-synchronization sequence, wherein the reducing process results in a reduction in the time to perform the re-synchronization for the DVB-H receiver, wherein the reduction in the time to perform the re-synchronization for the DVB-H receiver is greater than one-half of the time required to perform the re-synchronization for the DVB-H receiver absent the reducing of the re-acquisition time at every stage of the data bit re-synchronization sequence.

摘要翻译： 对DVB-H数字视频广播（DVB-H）接收机执行重新同步的系统和方法包括对由DVB-H接收机接收的数据的比特执行时分复用（TDM）数据突发传输序列; 在DVB-H接收机上执行数据比特重新同步序列; 并且在数据比特重新同步序列的每个阶段减少重新采集时间，其中减少处理导致对DVB-H接收机执行重新同步的时间的减少，其中将时间缩短 执行DVB-H接收机的重新同步大于执行DVB-H接收机重新同步所需的时间的一半，而不需要在数据比特的每个阶段减少重新获取时间 - 同步序列。

公开(公告)号：US07729463B2

公开(公告)日：2010-06-01

申请号：US11615292

申请日：2006-12-22

申请人： Nabil R. Yousef ,  Jun Ma ,  Chaoliang T. Chen

发明人： Nabil R. Yousef ,  Jun Ma ,  Chaoliang T. Chen

IPC分类号： H04L7/00

CPC分类号： H04N21/443 ,  H04H20/426 ,  H04N21/4382 ,  H04N21/4436 ,  H04N21/64315

摘要： A system and method of performing re-synchronization for a Digital Video Broadcasting over Handheld (DVB-H) receiver, wherein the method comprises performing a time division multiplexing (TDM) data burst transmission sequence on bits of data received by the DVB-H receiver; performing a data bit re-synchronization sequence on the DVB-H receiver; removing an on-chip timer and internal state registers in the DVB-H receiver; and allowing the DVB-H receiver to power off in between receipt of data bursts. Preferably, the removing process reduces the time to perform the re-synchronization in the DVB-H receiver. Preferably, the data bit re-synchronization sequence comprises performing an automatic gain control (AGC) lock process; performing a mode and guard detecting process; performing a frequency offset estimation process; performing a transmit parameter signaling (TPS) detection process; performing a timing and carrier loop lock process; and performing an equalizer delay process.

摘要翻译： 一种用于对手持式数字视频广播（DVB-H）接收机执行重新同步的系统和方法，其中所述方法包括对由DVB-H接收机接收的数据位执行时分复用（TDM）数据脉冲串传输序列 ; 在DVB-H接收机上执行数据比特重新同步序列; 去除DVB-H接收机中的片上定时器和内部状态寄存器; 并允许DVB-H接收机在接收到数据脉冲串之间断电。 优选地，去除过程减少了在DVB-H接收机中执行重新同步的时间。 优选地，数据比特重新同步序列包括执行自动增益控制（AGC）锁定过程; 执行模式和保护检测过程; 执行频偏估计处理; 执行传输参数信令（TPS）检测过程; 执行定时和载波循环锁定过程; 并执行均衡器延迟处理。

公开(公告)号：US20080151799A1

公开(公告)日：2008-06-26

申请号：US11615292

申请日：2006-12-22

申请人： Nabil R. Yousef ,  Jun Ma ,  Chaoliang T. Chen

发明人： Nabil R. Yousef ,  Jun Ma ,  Chaoliang T. Chen

IPC分类号： G08C17/00

CPC分类号： H04N21/443 ,  H04H20/426 ,  H04N21/4382 ,  H04N21/4436 ,  H04N21/64315

摘要： A system and method of performing re-synchronization for a Digital Video Broadcasting over Handheld (DVB-H) receiver, wherein the method comprises performing a time division multiplexing (TDM) data burst transmission sequence on bits of data received by the DVB-H receiver; performing a data bit re-synchronization sequence on the DVB-H receiver; removing an on-chip timer and internal state registers in the DVB-H receiver; and allowing the DVB-H receiver to power off in between receipt of data bursts. Preferably, the removing process reduces the time to perform the re-synchronization in the DVB-H receiver. Preferably, the data bit re-synchronization sequence comprises performing an automatic gain control (AGC) lock process; performing a model and guard detecting process; performing a frequency offset estimation process; performing a transmit parameter signaling (TPS) detection process; performing a timing and carrier loop lock process; and performing an equalizer delay process.

摘要翻译： 一种用于对手持式数字视频广播（DVB-H）接收机执行重新同步的系统和方法，其中所述方法包括对由DVB-H接收机接收的数据位执行时分复用（TDM）数据脉冲串传输序列 ; 在DVB-H接收机上执行数据比特重新同步序列; 去除DVB-H接收机中的片上定时器和内部状态寄存器; 并允许DVB-H接收机在接收到数据脉冲串之间断电。 优选地，去除过程减少了在DVB-H接收机中执行重新同步的时间。 优选地，数据比特重新同步序列包括执行自动增益控制（AGC）锁定过程; 执行模型和保护检测过程; 执行频偏估计处理; 执行传输参数信令（TPS）检测过程; 执行定时和载波循环锁定过程; 并执行均衡器延迟处理。

公开(公告)号：US07308053B2

公开(公告)日：2007-12-11

申请号：US11592286

申请日：2006-11-02

申请人： Nabil R. Yousef ,  Jun Ma ,  Jonathan S. Min

发明人： Nabil R. Yousef ,  Jun Ma ,  Jonathan S. Min

IPC分类号： H04L27/06

CPC分类号： H04B1/707 ,  H04B2201/70701 ,  H04L2027/0055

摘要： Iterative data-aided carrier CFO estimation for CDMA systems. Any communication receiver may be adapted to perform the iterative data-aided carrier CFO estimation. The iterative data-aided carrier CFO estimation is performed using a high accuracy method. The operation may be described as follows: a received signal is despread and buffered. Using the received preamble sequence, an initial estimate of the CFO is obtained. This estimate is used to correct the whole despread data. The corrected data using the initial CFO estimate is sliced. Each despread data symbol is divided by the corresponding sliced data decision. The obtained sequence is then averaged across different codes to obtain a less noisy sequence, which is then used to estimate the CFO again. The procedure can be repeated (iterated) to obtain a more accurate carrier frequency offset estimate; the number of times in which the procedure is repeated may be programmable or predetermined.

摘要翻译： CDMA系统的迭代数据辅助载波CFO估计。 任何通信接收机可以适于执行迭代数据辅助载波CFO估计。 使用高精度方法进行迭代数据辅助载波CFO估计。 该操作可以描述如下：接收信号被解扩和缓冲。 使用接收到的前导序列，获得CFO的初始估计。 该估计用于校正整个解扩数据。 使用初始CFO估计的校正数据被切片。 每个解扩数据符号被相应的切片数据判定划分。 然后将获得的序列在不同的代码之间进行平均，以获得较少的噪声序列，然后将其用于再次估计CFO。 可以重复（迭代）该过程以获得更准确的载波频率偏移估计; 重复该过程的次数可以是可编程的或预定的。

公开(公告)号：US07139339B2

公开(公告)日：2006-11-21

申请号：US10114565

申请日：2002-04-02

申请人： Nabil R. Yousef ,  Jun Ma ,  Jonathan S. Min

发明人： Nabil R. Yousef ,  Jun Ma ,  Jonathan S. Min

IPC分类号： H04L27/06

CPC分类号： H04B1/707 ,  H04B2201/70701 ,  H04L2027/0055

摘要： Iterative data-aided carrier CFO estimation for CDMA systems. Any communication receiver may be adapted to perform the iterative data-aided carrier CFO estimation. The iterative data-aided carrier CFO estimation is performed using a high accuracy method. The operation may be described as follows: a received signal is despread and buffered. Using the received preamble sequence, an initial estimate of the CFO is obtained. This estimate is used to correct the whole despread data. The corrected data using the initial CFO estimate is sliced. Each despread data symbol is divided by the corresponding sliced data decision. The obtained sequence is then averaged across different codes to obtain a less noisy sequence, which is then used to estimate the CFO again. The procedure can be repeated (iterated) to obtain a more accurate carrier frequency offset estimate; the number of times in which the procedure is repeated may be programmable or predetermined.

公开(公告)号：US08036292B2

公开(公告)日：2011-10-11

申请号：US12131412

申请日：2008-06-02

申请人： Yongru Gu ,  Philip Treigherman ,  Chaoliang T. Chen ,  Jun Ma

发明人： Yongru Gu ,  Philip Treigherman ,  Chaoliang T. Chen ,  Jun Ma

IPC分类号： H04K1/10 ,  H04L27/28

CPC分类号： H04L27/2656 ,  H04L27/2647 ,  H04L27/2685

摘要： A technique for segmented frame synchronization for Integrated Services Digital Broadcasting-Terrestrial (ISDB-T) and Integrated Services Digital Broadcasting-Terrestrial Sound Broadcasting (ISDB-TSB) systems, wherein the method comprises receiving a wireless digital signal comprising an Orthogonal Frequency Division Multiplexing (OFDM) frame, further comprising ODFM symbols, in a receiver and wherein the receiver comprises a time de-interleaver, a bit de-interleaver, and a descrambler; filling memory of time de-interleaver and bit de-interleaver by the received wireless digital signal; determining an OFDM segmented frame boundary when memory of the time de-interleaver and bit de-interleaver are full; decoding bits from time de-interleaver and bit de-interleaver using a Viterbi decoder; outputting the Viterbi decoding bits from time de-interleaver and bit de-interleaver when the OFDM segmented frame boundary is detected; obtaining a segmented multiplexing frame boundary upon receipt of the first bit from the Viterbi decoder; and synchronizing the OFDM frame based on the segmented multiplexing frame boundary.

摘要翻译： 一种用于综合业务数字广播地面（ISDB-T）和综合业务数字广播地面声音广播（ISDB-TSB）系统的分段帧同步的技术，其中该方法包括：接收包括正交频分复用（ OFDM）帧，其还包括ODFM符号，并且其中所述接收机包括时间去交织器，比特解交织器和解扰器; 通过接收到的无线数字信号填充时间去交织器和比特解交织器的存储器; 当时间去交织器和比特解交织器的存储器已满时，确定OFDM分段帧边界; 使用维特比解码器从时间去交织器和位解交织器解码比特; 当检测到OFDM分段帧边界时，从时间去交织器和比特解交织器输出维特比解码比特; 在从维特比解码器接收到第一比特时获得分段复用帧边界; 以及基于所述分段复用帧边界来同步所述OFDM帧。

公开(公告)号：US20090296843A1

公开(公告)日：2009-12-03

申请号：US12131412

申请日：2008-06-02

申请人： Yongru Gu ,  Philip Treigherman ,  Chaoliang T. Chen ,  Jun Ma

发明人： Yongru Gu ,  Philip Treigherman ,  Chaoliang T. Chen ,  Jun Ma

IPC分类号： H04L27/28

CPC分类号： H04L27/2656 ,  H04L27/2647 ,  H04L27/2685

摘要： A technique for segmented frame synchronization for Integrated Services Digital Broadcasting-Terrestrial (ISDB-T) and Integrated Services Digital Broadcasting-Terrestrial Sound Broadcasting (ISDB-TSB) systems, wherein the method comprises receiving a wireless digital signal comprising an Orthogonal Frequency Division Multiplexing (OFDM) frame, further comprising ODFM symbols, in a receiver and wherein the receiver comprises a time de-interleaver, a bit de-interleaver, and a descrambler; filling memory of time de-interleaver and bit de-interleaver by the received wireless digital signal; determining an OFDM segmented frame boundary when memory of the time de-interleaver and bit de-interleaver are full; decoding bits from time de-interleaver and bit de-interleaver using a Viterbi decoder; outputting the Viterbi decoding bits from time de-interleaver and bit de-interleaver when the OFDM segmented frame boundary is detected; obtaining a segmented multiplexing frame boundary upon receipt of the first bit from the Viterbi decoder; and synchronizing the OFDM frame based on the segmented multiplexing frame boundary.

摘要翻译： 一种用于综合业务数字广播地面（ISDB-T）和综合业务数字广播地面声音广播（ISDB-TSB）系统的分段帧同步的技术，其中该方法包括：接收包括正交频分复用（ OFDM）帧，其还包括ODFM符号，并且其中所述接收机包括时间去交织器，比特解交织器和解扰器; 通过接收到的无线数字信号填充时间去交织器和比特解交织器的存储器; 当时间去交织器和比特解交织器的存储器已满时，确定OFDM分段帧边界; 使用维特比解码器从时间去交织器和位解交织器解码比特; 当检测到OFDM分段帧边界时，从时间去交织器和比特解交织器输出维特比解码比特; 在从维特比解码器接收到第一比特时获得分段复用帧边界; 以及基于所述分段复用帧边界来同步所述OFDM帧。

公开(公告)号：US20200165436A1

公开(公告)日：2020-05-28

申请号：US16200294

申请日：2018-11-26

申请人： Jun Ma

发明人： Jun Ma

IPC分类号： C08L27/22 ,  C08L83/04 ,  C08K5/00 ,  C08K11/00 ,  C08K3/36 ,  C08L77/00 ,  C08L71/02 ,  C08K5/20 ,  C08J3/00 ,  C08J3/12 ,  C08J3/18

摘要： The present invention discloses a modified polyvinyl chloride (PVC) paste resin and a method of making thereof. The PVC paste resin is prepared by mixing a PVC paste resin with polysiloxane (PBP), for example polyborodimethylsiloxanes.

公开(公告)号：US09126828B2

公开(公告)日：2015-09-08

申请号：US11841676

申请日：2007-08-20

申请人： Jun Ma ,  Alan Fiseher ,  Robert Hoch

发明人： Jun Ma ,  Alan Fiseher ,  Robert Hoch

IPC分类号： C01B31/00 ,  C01B31/04 ,  C01B31/08 ,  B82B1/00 ,  B82Y30/00 ,  B82Y40/00 ,  C01B31/02

CPC分类号： B82B1/00 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/16 ,  C01B32/174

摘要： The invention relates to carbon nanotube structures containing both single walled and multi walled carbon nanotubes, and methods for preparing same. These carbon nanotube structures include but are not limited to macroscopic two and three dimensional structures of carbon nanotubes such as assemblages, mats, plugs, networks, rigid porous structures, extrudates, etc. The carbon nanotube structures of the present invention have a variety of uses, including but not limited to, porous media for filtration, adsorption, chromatography; electrodes and current collectors for supercapacitors, batteries and fuel cells; catalyst supports, (including electrocatalysis), etc.

摘要翻译： 本发明涉及含有单壁和多壁碳纳米管的碳纳米管结构及其制备方法。 这些碳纳米管结构包括但不限于碳纳米管的宏观二维和三维结构，例如组合物，垫，塞子，网络，刚性多孔结构，挤出物等。本发明的碳纳米管结构具有多种用途 包括但不限于用于过滤，吸附，色谱的多孔介质; 用于超级电容器，电池和燃料电池的电极和集电器; 催化剂载体（包括电催化）等