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    RECEIVER AND PACKET FORMATTER FOR DECODING AN ATSC DTV SIGNAL
    2.
    发明申请
    RECEIVER AND PACKET FORMATTER FOR DECODING AN ATSC DTV SIGNAL 审中-公开

    公开(公告)号：WO2005002229A3

    公开(公告)日：2005-01-06

    申请号：PCT/IB2004/051037

    申请日：2004-06-28

    Applicant: KONINKLIJKE PHILIPS ELECTRONICS, N.V. ,  GADDAM, Vasanth, R. ,  BIRRU, Dagnachew

    Inventor： GADDAM, Vasanth, R. ,  BIRRU, Dagnachew

    IPC: H04N7/24

    Abstract: A packet formatter for use in a television receiver capable of receiving a dual bitstream signal comprising a standard stream compatible with the Advanced Television Systems Committee (ATSC) standard and a robust stream. The packet formatter comprises: 1) a first processing block capable of receiving the dual bitstream signal and removing therefrom header bits and parity bits associated with the robust stream to thereby produce a first output signal; and 2) a second processing block capable of receiving the first output signal and removing therefrom duplicate bits associated with the robust stream to thereby produce a second output signal that is output from a data path output of the packet formatter.

    IMPROVING PERFORMANCE IN A TIME-FREQUENCY INTERLEAVED ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING SYSTEM
    3.
    发明申请
    IMPROVING PERFORMANCE IN A TIME-FREQUENCY INTERLEAVED ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING SYSTEM 审中-公开
    提高时频间隔正交频分复用系统的性能

    公开(公告)号：WO2008068669A1

    公开(公告)日：2008-06-12

    申请号：PCT/IB2007/054823

    申请日：2007-11-28

    Applicant: KONINKLIJKE PHILIPS ELECTRONICS, N.V. ,  GADDAM, Vasanth, R. ,  PU, Tianyan ,  ZHANG, Yifeng

    Inventor： GADDAM, Vasanth, R. ,  PU, Tianyan ,  ZHANG, Yifeng

    IPC: H04L25/02 ,  H04L27/26

    CPC classification number: H04L25/022 ,  H04L27/2649

    Abstract: In one embodiment, a TFI-OFDM receiver system (22) is able to more reliably decode the information bits by estimating the noise variance associated with the channel and using these estimates in mitigating in-band interference. In another embodiment, there is a TFI-OFDM receiver system (66) that is able to update the estimated channel impulse response and the noise variance by generating reference OFDM symbols from the received header symbols, the band hopping pattern provided by the TFC number associated with the communication link, the estimated channel impulse response and the noise variance estimates and symbols generated from a FFT processor (30).

    Abstract translation: 在一个实施例中，TFI-OFDM接收机系统（22）能够通过估计与信道相关联的噪声方差并且在减轻带内干扰中使用这些估计来更可靠地解码信息比特。 在另一个实施例中，存在TFI-OFDM接收机系统（66），其能够通过从接收到的标题符号生成参考OFDM符号来更新所估计的信道脉冲响应和噪声方差，所述TFC号码相关联提供的跳频模式 通信链路，估计信道脉冲响应和从FFT处理器（30）产生的噪声方差估计和符号。

    SIGNALING METHOD AND APPARATUS TO ENABLE MULTIPLE ANTENNA COMMUNICATIONS IN WIRELESS SYSTEMS
    8.
    发明申请
    SIGNALING METHOD AND APPARATUS TO ENABLE MULTIPLE ANTENNA COMMUNICATIONS IN WIRELESS SYSTEMS 审中-公开
    在无线系统中启用多个天线通信的信号方法和装置

    公开(公告)号：WO2010116280A1

    公开(公告)日：2010-10-14

    申请号：PCT/IB2010/051296

    申请日：2010-03-24

    Applicant: KONINKLIJKE PHILIPS ELECTRONICS, N.V. ,  GHOSH, Monisha ,  GADDAM, Vasanth R.

    Inventor： GHOSH, Monisha ,  GADDAM, Vasanth R.

    IPC: H04L1/00 ,  H04L7/04

    CPC classification number: H04L1/0025 ,  H04B7/0613 ,  H04L7/042

    Abstract: 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.

    Abstract translation: 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。

    SCHEDULING AND PROTECTION OF QUIET PERIODS IN A QUIET ZONE FOR INCUMBENT SIGNAL DETECTION
    9.
    发明申请
    SCHEDULING AND PROTECTION OF QUIET PERIODS IN A QUIET ZONE FOR INCUMBENT SIGNAL DETECTION 审中-公开
    调度和保护安全区域进行有害信号检测

    公开(公告)号：WO2010097722A1

    公开(公告)日：2010-09-02

    申请号：PCT/IB2010/050442

    申请日：2010-02-02

    Applicant: KONINKLIJKE PHILIPS ELECTRONICS, N.V. ,  WANG, Jianfeng ,  GADDAM, Vasanth, R.

    Inventor： WANG, Jianfeng ,  GADDAM, Vasanth, R.

    IPC: H04W72/12

    CPC classification number: H04W16/14 ,  H04W72/1289

    Abstract: A method and system for scheduling and protecting quiet periods (QP) in a quiet zone (105) for incumbent signal (121) detection in a wireless communications system. The communication system includes a plurality of wireless networks (103, 104), each of the plurality of wireless networks contains at least a master device (101, 401 ) and a client device (111, 411). In each of the plurality of wireless networks, the master device (101, 401) transmits a beacon (402) that contains a QP schedule (500) and a reservation of a time slot (405) for the client device (411 ). The client device (111, 411) transmits a request-to-quiet (RTQ) message (412) during the time slot, wherein the RTQ message (412) includes the client device's QP schedule information. The master and client devices within the quiet zone (105) keep quiet during scheduled quiet periods according to the QP schedule information contained in the received beacons and RTQ messages.

    Abstract translation: 一种用于在无线通信系统中调度和保护安静区（105）中的安全期（QP）用于现有信号（121）检测的方法和系统。 通信系统包括多个无线网络（103,104），所述多个无线网络中的每一个至少包含主设备（101,401）和客户端设备（111,411）。 在所述多个无线网络中的每一个中，所述主设备（101,401）发送包含所述客户端设备（411）的QP调度（500）和时隙（405）的预留的信标（402）。 客户端设备（111,411）在时隙期间发送请求到静默（RTQ）消息（412），其中RTQ消息（412）包括客户端设备的QP调度信息。 安静区（105）内的主设备和客户端设备根据接收到的信标和RTQ消息中包含的QP调度信息在安排的安静时段内保持安静。

    RECEIVER AND PACKET FORMATTER FOR DECODING AN ATSC DTV SIGNAL
    10.
    发明申请
    RECEIVER AND PACKET FORMATTER FOR DECODING AN ATSC DTV SIGNAL 审中-公开
    用于解码ATSC DTV信号的接收器和分组格式

    公开(公告)号：WO2005002229A2

    公开(公告)日：2005-01-06

    申请号：PCT/IB2004051037

    申请日：2004-06-28

    Applicant: KONINKL PHILIPS ELECTRONICS NV ,  GADDAM VASANTH R ,  BIRRU DAGNACHEW

    Inventor： GADDAM VASANTH R ,  BIRRU DAGNACHEW

    IPC: H04N7/24 ,  H04N19/89 ,  H03M13/35 ,  H04N7/64

    CPC classification number: H04N21/63 ,  H04N21/2383 ,  H04N21/42615 ,  H04N21/4263 ,  H04N21/4382

    Abstract: A packet formatter for use in a television receiver capable of receiving a dual bitstream signal comprising a standard stream compatible with the Advanced Television Systems Committee (ATSC) standard and a robust stream. The packet formatter comprises: 1) a first processing block capable of receiving the dual bitstream signal and removing therefrom header bits and parity bits associated with the robust stream to thereby produce a first output signal; and 2) a second processing block capable of receiving the first output signal and removing therefrom duplicate bits associated with the robust stream to thereby produce a second output signal that is output from a data path output of the packet formatter.

    Abstract translation: 一种用于能够接收双重位流信号的电视接收机的分组格式器，包括与高级电视系统委员会（ATSC）标准兼容的标准流和稳健的流。 分组格式化器包括：1）能够接收双比特流信号并从其去除与鲁棒流相关联的标题比特和奇偶校验位从而产生第一输出信号的第一处理块; 以及2）第二处理块，其能够接收所述第一输出信号并从其中移除与所述鲁棒流相关联的重复位，从而产生从所述分组格式化器的数据路径输出输出的第二输出信号。

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