ATSC digital television system
    1.
    发明授权
    ATSC digital television system 有权
    ATSC数字电视系统

    公开(公告)号:US07206352B2

    公开(公告)日:2007-04-17

    申请号:US10078933

    申请日:2002-02-19

    IPC分类号: H04L23/02 H04L5/12

    摘要: This disclosure describes a flexible digital transmission system that improves upon the ATSC A/53 HDTV signal transmission standard. The system includes a digital television signal transmitter for generating a first Advanced Television Systems Committee (ATSC) standard 8-VSB bit stream and, for generating an encoded new bit stream capable of transmitting high priority information bits, wherein symbols of the new bit stream are capable of being transmitted according to a transmission mode selected from group comprising: a 2-VSB mode, a 4-VSB mode, and a hierarchical-VSB (H-VSB) transmission mode. Each respective 2-VSB, 4-VSB, and H-VSB mode is characterized as having symbols mapped according to possible symbol values from an alphabet comprising respectively, {−7, −5, 5, 7}, {7, 3, −3, −7}, and {7, 5, 3, −3, −5, −7}. The standard 8-VSB bit stream and new bit stream may be simultaneously transmitted over a terrestrial channel according to a broadcaster defined bit-rate ratio.

    摘要翻译: 本公开描述了一种改进了ATSC A / 53 HDTV信号传输标准的灵活数字传输系统。 该系统包括用于产生第一高级电视系统委员会(ATSC)标准8-VSB比特流的数字电视信号发射机,用于产生能够发送高优先级信息比特的编码新比特流,其中新比特流的符号是 能够根据从包括2-VSB模式,4-VSB模式和分级VSB(H-VSB)传输模式的组中选择的传输模式进行传输。 每个相应的2-VSB,4-VSB和H-VSB模式的特征在于具有根据分别由{-7,5 -5,7},{7,3,..., 3,-7}和{7,5,3,-3,-5,-7}。 标准8-VSB比特流和新比特流可以根据广播器定义的比特率比率通过地面信道同时发送。

    Packet identification mechanism at the transmitter and receiver for an enhanced ATSC 8-VSB system
    2.
    发明授权
    Packet identification mechanism at the transmitter and receiver for an enhanced ATSC 8-VSB system 失效
    用于增强型ATSC 8-VSB系统的发射机和接收机的分组识别机制

    公开(公告)号:US07675994B2

    公开(公告)日:2010-03-09

    申请号:US10118876

    申请日:2002-04-09

    IPC分类号: H04L27/04

    摘要: A flexible digital transmission system that improves upon the ATSC A/53 HDTV signal transmission standard. The system includes a digital signal transmitter for generating a first Advanced Television Systems Committee (ATSC) standard encoded 8-VSB bit stream and, for generating an encoded new robust bit stream for transmitting high priority information bits, wherein symbols of the new bit stream are capable of being transmitted according to a transmission mode including: a 2-VSB mode and a 4-VSB transmission mode. The standard 8-VSB bit stream and new bit stream may be simultaneously transmitted over a terrestrial channel according to a broadcaster defined bit-rate ratio. The transmission system includes a control mechanism for generating information needed for encoding robust packets at a transmitter device. It also includes a mechanism for encoding control parameters and multiplexes the generated information with the standard and robust bit-streams for transmission. A receiver architecture is additionally provided to decode standard and robust bit-streams transmitted by the transmitter device.

    摘要翻译: 灵活的数字传输系统,改进了ATSC A / 53 HDTV信号传输标准。 该系统包括用于产生第一高级电视系统委员会(ATSC)标准编码的8-VSB比特流的数字信号发射机,并且用于产生用于发送高优先级信息比特的编码的新鲁棒比特流,其中新比特流的符号是 能够根据包括2-VSB模式和4-VSB传输模式的传输模式进行传输。 标准8-VSB比特流和新比特流可以根据广播器定义的比特率比率通过地面信道同时发送。 传输系统包括用于产生在发射机设备处对鲁棒分组进行编码所需的信息的控制机制。 它还包括用于编码控制参数的机制,并将所生成的信息与标准和鲁棒的比特流多路复用以进行传输。 另外提供接收机架构来解码由发射机设备发射的标准和鲁棒的比特流。

    Parameter encoding for an improved ATSC DTV system
    3.
    发明授权
    Parameter encoding for an improved ATSC DTV system 有权
    改进的ATSC DTV系统的参数编码

    公开(公告)号:US08229003B2

    公开(公告)日:2012-07-24

    申请号:US10533174

    申请日:2003-09-05

    IPC分类号: H04N7/18

    摘要: Transmission of a digital television signal conveys data parameters along with the encoder data that are utilized by the receiver in equalization and in decoding the encoded data. Leveraging the existing digital television standard data formatting, parameters are split between the two fields of a frame of the interlaced signal. Spread spectrum techniques are employed to robustly convey the parameters in encoded form to the receiver.

    摘要翻译: 数字电视信号的传输与数据参数一起传送接收机所使用的编码器数据进行均衡和解码编码数据。 利用现有的数字电视标准数据格式,参数在隔行扫描信号的帧的两个场之间被分割。 采用扩频技术将编码形式的参数鲁棒地传递给接收机。

    Packet insertion mechanism for an improved ATSC DTV system
    4.
    发明授权
    Packet insertion mechanism for an improved ATSC DTV system 有权
    用于改进的ATSC DTV系统的分组插入机制

    公开(公告)号:US08503488B2

    公开(公告)日:2013-08-06

    申请号:US10526873

    申请日:2003-09-01

    IPC分类号: H04J3/04

    摘要: A packet insertion mechanism at the front end of a time-synchronized digital television transmission system multiplexes, along with standard packets, packets whose payload is to be transmitted with redundancy for added robustness. The multiplexer also inputs placeholder packets to accommodate duplicated content of the robust packets. Multiplexing of the robust and placeholder packets is configured to alternate and to interleave with the multiplexing of standard packets. The distribution of the robust packets within a frame is determined by the number of robust packets.

    摘要翻译: 时间同步数字电视传输系统前端的分组插入机制与标准分组一起复用其有效负载将被冗余的分组,以增加鲁棒性。 复用器还输入占位符数据包以容纳鲁棒数据包的重复内容。 鲁棒和占位符分组的多路复用被配置为与标准分组的复用交替和交织。 一个帧内的鲁棒数据包的分布由强大的数据包的数量决定。

    BONDING ADJACENT TV BANDS, SUB-CARRIER ALLOCATION, DATA BURST DEFINITION AND SPREAD OFDMA IN A PHYSICAL LAYER FOR 802.22 WRAN COMMUNICATION SYSTEMS
    6.
    发明申请
    BONDING ADJACENT TV BANDS, SUB-CARRIER ALLOCATION, DATA BURST DEFINITION AND SPREAD OFDMA IN A PHYSICAL LAYER FOR 802.22 WRAN COMMUNICATION SYSTEMS 审中-公开
    绑定相邻的电视台,子载波分配,数据波特率定义和在物理层中传播802dB通信系统

    公开(公告)号:US20090323610A1

    公开(公告)日:2009-12-31

    申请号:US12441610

    申请日:2007-09-21

    IPC分类号: H04N7/24 H04W4/00

    摘要: A method and system of calculating debt service capacity of a loan applicant includes capturing, indexing, reclassifying and grouping transaction data and profile data of the loan applicant. Next, capturing a loan structure, risk factors, financial variables and reconciliation rules and finally using the aforementioned and loan applicants' data and cash flow projections to calculate loan applicants' debt service capacity with time value of money calculations.

    摘要翻译: 贷款申请人偿债能力的计算方法和系统包括对贷款申请人的交易数据和资料数据的采集,索引,重新分类和归类。 接下来,收集贷款结构,风险因素,财务变量和对账规则,最后使用上述和贷款申请人的数据和现金流量预测来计算贷款申请人的债务偿还能力与时间价值计算。

    Digital transmission system for an enhanced ATSC 8-VSB system
    7.
    发明授权
    Digital transmission system for an enhanced ATSC 8-VSB system 有权
    用于增强型ATSC 8-VSB系统的数字传输系统

    公开(公告)号:US07111221B2

    公开(公告)日:2006-09-19

    申请号:US10127531

    申请日:2002-04-22

    IPC分类号: H03M13/00

    CPC分类号: H04N21/4382 H04N21/2383

    摘要: A transmission system includes a first forward error correction unit, a robust processor unit, a trellis encoder unit, a second forward error correction unit, and a transmitter device. The first forward error correction unit encodes packets belonging to robust and normal bit streams. The robust processor unit receives the encoded robust packets and processes the robust packets to generate the robust bit stream. The trellis encoder unit produces a stream of trellis encoded data bits corresponding to bits of the normal and robust bit streams by mapping encoded data bits of the robust packets into symbols according to one or more symbol mapping schemes. The second forward error correction unit reads in only packets of the robust bit stream and enables generation of parity bytes only for the robust packets. The transmitter device transmits the robust bit stream over a communications channel to a receiver device.

    摘要翻译: 传输系统包括第一前向纠错单元,鲁棒处理器单元,网格编码器单元,第二前向纠错单元和发射机设备。 第一前向纠错单元对属于鲁棒和正常比特流的分组进行编码。 鲁棒的处理器单元接收编码的鲁棒分组并处理鲁棒分组以产生鲁棒的比特流。 网格编码器单元通过根据一个或多个符号映射方案将鲁棒分组的编码数据位映射成符号,产生对应于正常和鲁棒比特流的比特的网格编码数据比特流。 第二前向纠错单元仅读入鲁棒比特流的分组,并且仅允许为鲁棒分组生成奇偶校验字节。 发射机设备通过通信信道将鲁棒比特流发送到接收机设备。

    Signaling method and apparatus to enable multiple antenna communications in wireless systems
    8.
    发明授权
    Signaling method and apparatus to enable multiple antenna communications in wireless systems 有权
    用于在无线系统中实现多天线通信的信令方法和装置

    公开(公告)号:US08773994B2

    公开(公告)日:2014-07-08

    申请号:US13263136

    申请日:2010-03-24

    IPC分类号: G01R31/08

    摘要: A method (200) for signaling a transmission mode in a wireless communication networks comprises selecting a signature sequence corresponding to the transmission mode of a transmitting device (S210); forming, for each antenna in the transmitting device, a synchronization field based on the selected signature sequence, wherein the synchronization field is included in a preamble (S220); and transmitting, from each antenna in the transmitting device, the data frame that comprises the preamble.

    摘要翻译: 一种用于在无线通信网络中发送传输模式的信令的方法(200)包括:选择与传输设备的传输模式对应的签名序列(S210); 针对所述发送装置中的每个天线形成基于所选择的签名序列的同步字段,其中所述同步字段包括在前导码中(S220); 并且从发送装置中的每个天线发送包括前导码的数据帧。

    METHOD AND SYSTEM OF BEACON TRANSMISSION AND RECEPTION
    9.
    发明申请
    METHOD AND SYSTEM OF BEACON TRANSMISSION AND RECEPTION 有权
    信标传输和接收的方法和系统

    公开(公告)号:US20100067428A1

    公开(公告)日:2010-03-18

    申请号:US12377642

    申请日:2007-07-12

    IPC分类号: H04B7/14

    CPC分类号: H04W48/08 H04W84/12

    摘要: A system includes a first primary wireless system (120) that communicates over a first range, and a first beaconing device (130) associated with the first primary wireless system (120). The first beaconing device (130) communicates over at least at a second range, wherein the second range is greater than the first range. The first beaconing device listens for beacons (510) from other beaconing devices (130) associated with other primary wireless systems (120) on a plurality of channels over which the other primary systems may operate. After listening for beacons from the other beaconing devices (130) associated with other primary wireless systems, the first beaconing device transmits a first beacon (510) to a wireless device (114) of a secondary wireless system (110) that may communicate over the second range. The first beacon includes data indicating an occupation of a first one of the channels by the first primary wireless system (120).

    摘要翻译: 系统包括在第一范围上通信的第一主要无线系统(120)和与第一主要无线系统(120)相关联的第一信标设备(130)。 第一信标装置(130)至少在第二范围进行通信,其中第二范围大于第一范围。 第一信标设备从其他主要系统可以在其上操作的多个信道上侦听与其他主要无线系统(120)相关联的其他信标设备(130)的信标(510)。 在从与其他主要无线系统相关联的其他信标设备(130)收听信标之后,第一信标设备向第二无线系统(110)的无线设备(114)发送第一信标(510),第二信标可以通过 第二范围。 第一信标包括指示由第一主无线系统(120)占用第一信道的数据。

    Method and system of beacon transmission and reception
    10.
    发明授权
    Method and system of beacon transmission and reception 有权
    信标发射和接收的方法和系统

    公开(公告)号:US08432854B2

    公开(公告)日:2013-04-30

    申请号:US12377642

    申请日:2007-07-12

    IPC分类号: H04W4/00

    CPC分类号: H04W48/08 H04W84/12

    摘要: A system includes a first primary wireless system (120) that communicates over a first range, and a first beaconing device (130) associated with the first primary wireless system (120). The first beaconing device (130) communicates over at least at a second range, wherein the second range is greater than the first range. The first beaconing device listens for beacons (510) from other beaconing devices (130) associated with other primary wireless systems (120) on a plurality of channels over which the other primary systems may operate. After listening for beacons from the other beaconing devices (130) associated with other primary wireless systems, the first beaconing device transmits a first beacon (510) to a wireless device (114) of a secondary wireless system (110) that may communicate over the second range. The first beacon includes data indicating an occupation of a first one of the channels by the first primary wireless system (120).

    摘要翻译: 系统包括在第一范围上通信的第一主要无线系统(120)和与第一主要无线系统(120)相关联的第一信标设备(130)。 第一信标装置(130)至少在第二范围进行通信,其中第二范围大于第一范围。 第一信标设备从其他主要系统可以在其上操作的多个信道上侦听与其他主要无线系统(120)相关联的其他信标设备(130)的信标(510)。 在从与其他主要无线系统相关联的其他信标设备(130)收听信标之后,第一信标设备向第二无线系统(110)的无线设备(114)发送第一信标(510),第二信标可以通过 第二范围。 第一信标包括指示由第一主无线系统(120)占用第一信道的数据。