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31. 发明授权

US08238830B2 Apparatus and method for detecting free ATSE channels 有权
标题翻译：用于检测自由ATSE通道的装置和方法
公开(公告)号：US08238830B2
公开(公告)日：2012-08-07
申请号：US12449078
申请日：2007-06-20
申请人： Wen Gao , Hou-Shin Chen
发明人： Wen Gao , Hou-Shin Chen
IPC分类号： H04B1/00 , H04B15/00
CPC分类号： H04L7/042 , H04L7/06 , H04N5/50 , H04N21/4383
摘要： A Wireless Regional Area Network (WRAN) receiver comprises a transceiver for communicating with a wireless network over one of a number of channels, and an Advanced Television Systems Committee (ATSC) signal detector for use in forming a supported channel list comprising those ones of the number of channels upon which an ATSC signal was not detected. The ATSC signal detector comprises a matched filter that matches to at least a modulated version of an ATSC field sync signal for detecting the presence of an incumbent ATSC broadcast signal.
摘要翻译：无线区域网络（WRAN）接收机包括用于通过多个信道之一与无线网络进行通信的收发机，以及用于形成支持的频道列表的高级电视系统委员会（ATSC）信号检测器，其包括没有检测到ATSC信号的通道数。 ATSC信号检测器包括与ATSC场同步信号的至少调制版本匹配的匹配滤波器，用于检测在线ATSC广播信号的存在。

32. 发明申请

US20110002418A1 TIME -FREQUENCY SYNCHRONIZATION AND FRAME NUMBER DETECTION FOR DMB-T SYSTEMS 有权
标题翻译： DMB-T系统的时频同步和帧数检测
公开(公告)号：US20110002418A1
公开(公告)日：2011-01-06
申请号：US12733571
申请日：2008-07-23
申请人： Hou-Shin Chen , Wen Gao
发明人： Hou-Shin Chen , Wen Gao
IPC分类号： H04L7/00 , H04L27/06
CPC分类号： H04L7/08 , H04L7/041 , H04L7/043 , H04L27/2602 , H04L27/2656 , H04L27/2675
摘要： A DMB-T receiver supports a single carrier (SC) form of modulation and a multi-carrier form of modulation such as orthogonal frequency division multiplexing (OFDM). Upon receiving a broadcast signal, the DMB-T receiver downconverts the received broadcast signal to a received base-band signal and determines a frame number for each frame by correlating groups of the received symbols in adjacent signal frames. In particular, the receiver determines a maximum right-shift correlation value and a maximum left-shift correlation value. If the magnitude of the maximum right-shift correlation value is greater than, or equal to, the magnitude of the maximum left-shift correlation value, then the maximum right shift correlation value is used to retrieve a frame number from a look-up table. Otherwise, the negative value of the maximum left-shift correlation value is used to retrieve a frame number from the look-up table.
摘要翻译： DMB-T接收机支持单载波（SC）形式的调制和诸如正交频分复用（OFDM）的多载波调制形式。在接收到广播信号时，DMB-T接收机将所接收的广播信号下变频为接收到的基带信号，并通过相邻信号帧中接收的符号组相关来确定每帧的帧号。特别地，接收机确定最大右移相关值和最大左移相关值。如果最大右移相关值的大小大于或等于最大左移相关值的幅度，则最大右移相关值用于从查找表中检索帧号。否则，最大左移相关值的负值用于从查找表中检索帧号。

33. 发明申请

US20100134699A1 DETECTION OF SIGNALS CONTIANING SINE-WAVE COMPONENTS THROUGH MEASURMENT OF THE POWER SPECTRAL DENSITY (PSD) AND CYCLIC SPECTRUM 失效
标题翻译：通过功率谱密度（PSD）和循环频谱的测量来检测信号来决定正弦波分量
公开(公告)号：US20100134699A1
公开(公告)日：2010-06-03
申请号：US12452112
申请日：2007-12-05
申请人： Wen Gao , Hou-Shin Chen
发明人： Wen Gao , Hou-Shin Chen
IPC分类号： H04N5/50 , H04L27/06
CPC分类号： H04W16/14 , H04B1/1027 , H04W48/16
摘要： A Wireless Regional Area Network (WRAN) receiver comprises a transceiver for communicating with a wireless network over one of a number of channels, and a signal detector for use in forming a supported channel list comprising those ones of the number of channels upon which an Advanced Television Systems Committee (ATSC) DTV (digital television) broadcast signal was not detected. The signal detector performs spectrum sensing as a function of power spectral density (PSD) and cyclic spectrum.
摘要翻译：无线区域网络（WRAN）接收机包括用于通过多个信道中的一个与无线网络通信的收发器，以及用于形成支持的频道列表的信号检测器，所述信道列表包括高级电视系统委员会（ATSC）DTV（数字电视）广播信号未被检测到。信号检测器执行频谱感测作为功率谱密度（PSD）和循环谱的函数。

34. 发明申请

US20100086074A1 APPARATUS AND METHOD FOR SENSING A MULTI-CARRIER SIGNAL USING CYCLOSTATIONARITY 审中-公开
标题翻译：用于感测使用循环的多载波信号的装置和方法
公开(公告)号：US20100086074A1
公开(公告)日：2010-04-08
申请号：US12449761
申请日：2007-06-20
申请人： Hou-Shin Chen , Wen Gao
发明人： Hou-Shin Chen , Wen Gao
IPC分类号： H04L1/02 , H04N7/173 , H04L27/00
CPC分类号： H04L27/2647 , H04L27/0012 , H04L27/2602
摘要： A Wireless Regional Area Network (WRAN) endpoint comprises a transceiver for communicating with a wireless network over one of a number of channels, and a DVB-T (Digital Video Broadcast-Terrestrial) signal detector for use in forming a supported channel list comprising those ones of the number of channels upon which a DVB-T signal was not detected. The WRAN endpoint processes a received signal to provide two data segments and determines an average of the autocorrelation of the two data segments at each one of eight transmission modes for the DVB-T signal. The WRAN endpoint then determines if a DVB-T signal is present as a function of the largest average autocorrelation value.
摘要翻译：无线区域网络（WRAN）端点包括用于通过多个信道之一与无线网络通信的收发器，以及用于形成支持的频道列表的DVB-T（数字视频广播地面）信号检测器，其包括没有检测到DVB-T信号的频道数量。 WRAN端点处理接收信号以提供两个数据段，并确定DVB-T信号的八个传输模式中的每一个处的两个数据段的自相关的平均值。然后，WRAN端点确定DVB-T信号是否作为最大平均自相关值的函数存在。

35. 发明申请

US20100045876A1 APPARATUS AND METHOD FOR SENSING AN ATSC SIGNAL IN LOW SIGNAL-TO -NOISE RATIO 审中-公开
标题翻译：用于感测低信号 - 非 - 比率的ATSC信号的装置和方法
公开(公告)号：US20100045876A1
公开(公告)日：2010-02-25
申请号：US12448487
申请日：2007-06-20
申请人： Wen Gao , Hou-Shin Chen
发明人： Wen Gao , Hou-Shin Chen
IPC分类号： H04N5/50
CPC分类号： H04N5/44 , H04N21/41407 , H04N21/4382
摘要： A Wireless Regional Area Network (WRAN) receiver comprises a transceiver for communicating with a wireless network over one of a number of channels, and a signal detector for use in forming a supported channel list comprising those ones of the number of channels upon which an Advanced Television Systems Committee (ATSC) signal was not detected. The WRAN receiver performs a method comprising the steps of: dividing a total observation time looking for an ATSC data segment sync signal into multiple slices; computing at least one statistic for each slice; computing at least one overall statistic from the statistics computed for each slice; determining if the at least one overall statistic is greater than a threshold; and if the overall statistic is greater than the threshold, determining that an ATSC signal is present, otherwise, determining that an ATSC signal is not present.
摘要翻译：无线区域网络（WRAN）接收机包括用于通过多个信道中的一个与无线网络通信的收发器，以及用于形成支持的频道列表的信号检测器，所述信道列表包括高级没有发现电视系统委员会（ATSC）信号。 WRAN接收机执行一种方法，包括以下步骤：将寻找ATSC数据段同步信号的总观测时间除以多个片; 计算每个切片的至少一个统计量; 从为每个切片计算的统计信息计算至少一个总体统计量; 确定所述至少一个总统计是否大于阈值; 并且如果总体统计量大于阈值，则确定存在ATSC信号，否则确定不存在ATSC信号。

36. 发明申请

US20170366238A1 SYSTEM AND METHOD FOR DISTRIBUTED MIMO COMMUNICATIONS 审中-公开
公开(公告)号：US20170366238A1
公开(公告)日：2017-12-21
申请号：US15625904
申请日：2017-06-16
申请人： Hou-Shin Chen , Fu-Hsuan Chiu
发明人： Hou-Shin Chen , Fu-Hsuan Chiu
IPC分类号： H04B7/0413 , H04B7/155 , H04B7/08
CPC分类号： H04B7/0413 , H04B7/0885 , H04B7/155 , H04B7/15592
摘要： The disclosure provides systems, devices, and methods for distributed relay multiple-in multiple-out (DR-MIMO) communications. The system can have a master transmit node that transmits a message to a master receive node via one or more relay nodes. The relay nodes can each relay a portion of the message, performing a time or frequency shift along with the relay. The multiple relay nodes can function as a distributed antenna array for one or both of the master transmit node and the master receive node, forming a transmit group and/or a receive group. The transmit group and the receive group can thus provide MIMO capabilities to the master transmit node and the master receive node. The master transmit node can transmit multiple spatial streams through distributed relay nodes. The master receive node can receive multiple data streams from distributed relay nodes and perform MIMO detection.

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