利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

231 条记录 (耗时 0.023 秒)

    SIGNAL DEMODULATING DEVICE, SIGNAL DEMODULATING METHOD, SEMICONDUCTOR INTEGRATED CIRCUIT, AND RECEIVING APPARATUS
    1.
    发明申请
    SIGNAL DEMODULATING DEVICE, SIGNAL DEMODULATING METHOD, SEMICONDUCTOR INTEGRATED CIRCUIT, AND RECEIVING APPARATUS 审中-公开
    信号解调装置，信号解调方法，半导体集成电路和接收装置

    公开(公告)号：US20100275102A1

    公开(公告)日：2010-10-28

    申请号：US12682407

    申请日：2008-10-28

    申请人： Tetsuya Yagi ,  Takaya Hayashi ,  Kenichiro Hayashi ,  Tomohiro Kimura

    发明人： Tetsuya Yagi ,  Takaya Hayashi ,  Kenichiro Hayashi ,  Tomohiro Kimura

    IPC分类号： H03M13/05 ,  G06F11/10

    CPC分类号： H04L25/03159 ,  H04L1/0045 ,  H04L27/2656

    摘要： There is provided a signal demodulating device, including: a time frequency converting unit (6) for converting a frequency division multiplexing signal on a time axis into a signal on a frequency axis to output a data carrier, a pilot carrier, and a transmission control carrier; an equalizer (7) for equalizing the data carrier and the transmission control carrier according to a characteristic value of a transmission line obtained from the pilot carrier to output an equalized data carrier and an equalized transmission control carrier; a first decoding unit (9) for decoding the equalized transmission control carrier; and a first correcting unit (10) for performing first error-correction on an output of said first decoding unit (9) to output first control information and a first decoding flag that indicates a status of the first error-correction.

    摘要翻译： 提供了一种信号解调装置，包括：时间频率转换单元（6），用于将时间轴上的频分复用信号转换为频率轴上的信号，以输出数据载波，导频载波和传输控制 载体 均衡器（7），用于根据从导频载波获得的传输线的特性值来均衡数据载波和传输控制载波，以输出均衡的数据载体和均衡的传输控制载体; 用于解码均衡的传输控制载体的第一解码单元（9） 以及用于对所述第一解码单元（9）的输出执行第一纠错以输出第一控制信息的第一校正单元（10）和指示第一错误校正的状态的第一解码标志。

    RECEIVER, INTEGRATED CIRCUIT, AND RECEPTION METHOD
    2.
    发明申请
    RECEIVER, INTEGRATED CIRCUIT, AND RECEPTION METHOD 有权
    接收机，集成电路和接收方法

    公开(公告)号：US20090207956A1

    公开(公告)日：2009-08-20

    申请号：US12307783

    申请日：2007-07-30

    申请人： Tomohiro Kimura ,  Kenichiro Hayashi

    发明人： Tomohiro Kimura ,  Kenichiro Hayashi

    IPC分类号： H04B1/10

    CPC分类号： H04L25/0222 ,  H04B17/309 ,  H04L1/0045 ,  H04L5/0048 ,  H04L25/0232 ,  H04L25/03159 ,  H04L27/2647 ,  H04L27/2657

    摘要： Channel characteristic calculation unit 23 estimates channel characteristics based on SP signals included in received signals, symbol interpolation filter 24 is able to frequency-shift frequency transfer characteristics and filters output signals of the channel characteristic calculation unit 23. Filter control unit 27 estimates channel characteristics based on CP signals included in the received signals and observes the estimated channel characteristics to determine a shift amount by which the symbol interpolation filter 24 frequency-shifts the frequency transfer characteristics. The symbol interpolation filter 24 frequency-shifts the frequency transfer characteristics based on the shift amount determined by the filter control unit 27.

    摘要翻译： 信道特性计算单元23基于接收信号中包括的SP信号来估计信道特性，符号内插滤波器24能够对频移特性进行频移，并对信道特性计算单元23的输出信号进行滤波。滤波器控制单元27基于信道特性估计 对包含在接收信号中的CP信号，并且观察估计的信道特性，以确定符号内插滤波器24对频率传送特性进行频率偏移的偏移量。 符号插值滤波器24根据由滤波器控制单元27确定的移位量对频率传递特性进行频移。

    Receiver, integrated circuit, and reception method
    4.
    发明授权
    Receiver, integrated circuit, and reception method 有权
    接收机，集成电路和接收方式

    公开(公告)号：US08275056B2

    公开(公告)日：2012-09-25

    申请号：US12307783

    申请日：2007-07-30

    申请人： Tomohiro Kimura ,  Kenichiro Hayashi

    发明人： Tomohiro Kimura ,  Kenichiro Hayashi

    IPC分类号： H04B1/10

    CPC分类号： H04L25/0222 ,  H04B17/309 ,  H04L1/0045 ,  H04L5/0048 ,  H04L25/0232 ,  H04L25/03159 ,  H04L27/2647 ,  H04L27/2657

    摘要： A channel characteristic calculation unit 23 estimates channel characteristics based on SP signals included in received signals, and a symbol interpolation filter 24 frequency-shifts frequency transfer characteristics and filters output signals of the channel characteristic calculation unit 23. A filter control unit 27 estimates channel characteristics based on CP signals included in the received signals and observes the estimated channel characteristics to determine a shift amount by which the symbol interpolation filter 24 frequency-shifts the frequency transfer characteristics. The symbol interpolation filter 24 frequency-shifts the frequency transfer characteristics based on the shift amount determined by the filter control unit 27.

    摘要翻译： 信道特性计算单元23基于接收信号中包括的SP信号来估计信道特性，并且符号插值滤波器24对频率传输特性进行频移，并对信道特性计算单元23的输出信号进行滤波。滤波器控制单元27估计信道特性 基于包含在接收信号中的CP信号，并观察估计的信道特性，以确定符号插值滤波器24对频率传送特性进行频率偏移的偏移量。 符号插值滤波器24根据由滤波器控制单元27确定的移位量对频率传递特性进行频移。

    Transmission device, reception device, and OFDM transmission method
    5.
    发明授权
    Transmission device, reception device, and OFDM transmission method 有权
    传输设备，接收设备和OFDM传输方法

    公开(公告)号：US08559536B2

    公开(公告)日：2013-10-15

    申请号：US12602844

    申请日：2008-06-19

    申请人： Kenichiro Hayashi ,  Tomohiro Kimura

    发明人： Kenichiro Hayashi ,  Tomohiro Kimura

    IPC分类号： H04K1/10 ,  H04L27/28

    CPC分类号： H04B7/10 ,  H04L5/0023 ,  H04L5/0051 ,  H04L25/0204 ,  H04L25/0212 ,  H04L25/0226 ,  H04L25/03159 ,  H04L27/2613 ,  H04L2025/03414 ,  H04L2025/03426

    摘要： SP signals to be transmitted from a first transmitting antenna are arranged in the same pattern as SP signals to be transmitted from a second transmitting antenna. The SP signals to be transmitted from the second transmitting antenna in one symbol are generated, such that the polarity of the SP signals are alternately inverted and non-inverted with respect to the SP signals to be transmitted from the first transmitting antenna in the same symbol. Thus, in the direction that the symbol number is incremented by 1 and the carrier number is incremented by 3, the polarity of SP signals transmitted from the second transmitting antenna are all inverted or non-inverted with respect to the polarity of corresponding SP signals transmitted from the first transmitting antenna.

    摘要翻译： 要从第一发送天线发送的SP信号以与要从第二发送天线发送的SP信号相同的模式排列。 产生要从一个符号中的第二发送天线发送的SP信号，使得SP信号的极性相对于要从相同符号中的第一发送天线发送的SP信号交替反相和非反相 。 因此，在符号数增加1并且载波号增加3的方向上，从第二发送天线发送的SP信号的极性相对于发送的相应SP信号的极性全部反相或非反相 从第一个发射天线。

    TRANSMITTER, MULTICARRIER TRANSMITTING METHOD, AND RECEIVER
    6.
    发明申请
    TRANSMITTER, MULTICARRIER TRANSMITTING METHOD, AND RECEIVER 失效
    发射机，发射机发射方法和接收机

    公开(公告)号：US20110249772A1

    公开(公告)日：2011-10-13

    申请号：US12599564

    申请日：2008-05-27

    申请人： Tomohiro Kimura ,  Kenichiro Hayashi

    发明人： Tomohiro Kimura ,  Kenichiro Hayashi

    IPC分类号： H04L27/04 ,  H04L27/06

    CPC分类号： H04L5/0053 ,  H04L5/0007 ,  H04L27/2613 ,  H04L27/2656

    摘要： A transmitter modulates for each symbol period a plurality of carriers that include a carrier group that is consisted of a plurality of prescribed carriers, and repeatedly transmits control information in cycles by using the carrier group. The transmitter transmits multiple-bit binary data of the control information in each symbol period, thereby transmitting the control information once in each of the cycles that includes at least one symbol period. The transmitter controls the transmission unit to switch, within the carrier group, for each of the cycles, carriers of bits of the control information, according to a prescribed rule.

    摘要翻译： 发射机对于每个符号周期调制包括由多个规定载波组成的载波组的多个载波，并且通过使用载波组重复发送控制信息。 发射机在每个符号周期中发送控制信息的多位二进制数据，从而在包括至少一个符号周期的每个周期中发送一次控制信息。 发射机根据规定的规则控制传输单元在载波组内针对每个周期切换控制信息的比特的载波。

    TRANSMISSION DEVICE, RECEPTION DEVICE, AND OFDM TRANSMISSION METHOD
    7.
    发明申请
    TRANSMISSION DEVICE, RECEPTION DEVICE, AND OFDM TRANSMISSION METHOD 有权
    传输设备，接收设备和OFDM传输方法

    公开(公告)号：US20100272199A1

    公开(公告)日：2010-10-28

    申请号：US12602844

    申请日：2008-06-19

    申请人： Kenichiro Hayashi ,  Tomohiro Kimura

    发明人： Kenichiro Hayashi ,  Tomohiro Kimura

    IPC分类号： H04L27/00

    CPC分类号： H04B7/10 ,  H04L5/0023 ,  H04L5/0051 ,  H04L25/0204 ,  H04L25/0212 ,  H04L25/0226 ,  H04L25/03159 ,  H04L27/2613 ,  H04L2025/03414 ,  H04L2025/03426

    摘要： SP signals to be transmitted from a first transmitting antenna 11 are arranged in the same pattern as SP signals to be transmitted from a second transmitting antenna 12. The SP signals to be transmitted from the second transmitting antenna 12 in one symbol are generated, such that the polarity of the SP signals are alternately inverted and non-inverted with respect to the SP signals to be transmitted from the first transmitting antenna 11 in the same symbol. Thus, in the direction that the symbol number is incremented by 1 and the carrier number is incremented by 3, the polarity of SP signals transmitted from the second transmitting antenna 12 are all inverted or non-inverted with respect to the polarity of corresponding SP signals transmitted from the first transmitting antenna 11.

    摘要翻译： 要从第一发送天线11发送的SP信号以与从第二发送天线12发送的SP信号相同的模式被布置。产生将从一个符号中从第二发送天线12发送的SP信号，使得 SP信号的极性相对于要从相同符号中的第一发送天线11发送的SP信号交替地反相和非反转。 因此，在符号数增加1并且载波号增加3的方向上，从第二发送天线12发送的SP信号的极性相对于对应的SP信号的极性全部反相或非反相 从第一发送天线11发送。

    OFDM receiving apparatus, OFDM receiving method, OFDM receiving circuit, integrated circuit, and program
    9.
    发明授权
    OFDM receiving apparatus, OFDM receiving method, OFDM receiving circuit, integrated circuit, and program 有权
    OFDM接收装置，OFDM接收方法，OFDM接收电路，集成电路和程序

    公开(公告)号：US08416844B2

    公开(公告)日：2013-04-09

    申请号：US12593127

    申请日：2008-03-25

    申请人： Mikihiro Ouchi ,  Kenichiro Hayashi ,  Tomohiro Kimura

    发明人： Mikihiro Ouchi ,  Kenichiro Hayashi ,  Tomohiro Kimura

    IPC分类号： H03K5/159 ,  H03K9/00 ,  H04L7/00

    CPC分类号： H04L27/2657 ,  H04L25/0232 ,  H04L27/2662 ,  H04L27/2665

    摘要： A synchronization section specifies a position of a guard interval correlation's center of gravity based on a guard interval correlation value, and calculates a carrier-direction shift amount Fshift. An equalization section shifts the passband of a carrier interpolation filter of a carrier interpolation section by the carrier-direction shift amount Fshift calculated by the synchronization section. This shift processing causes the delay profile to be kept in the center of the passband of the carrier interpolation filter, for any FFT window position. This enables transmission path estimation without limiting a range of an FFT window position even if the passband of the carrier interpolation filter is narrower than a guard interval of an OFDM signal.

    摘要翻译： 同步部分基于保护间隔相关值来指定保护间隔相关重心的位置，并计算载波方向偏移量Fshift。 均衡部将载波插值部的载波插值滤波器的通带按同步部所计算的载波方向移位量Fshift进行移位。 对于任何FFT窗口位置，该移位处理使延迟分布保持在载波内插滤波器的通带的中心。 即使载波内插滤波器的通带比OFDM信号的保护间隔窄，也能够限制FFT窗口位置的范围。