会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 8. 发明授权
    • Signal reception device, signal transmission device, radio communication system, and signal reception method
    • 信号接收装置,信号发送装置,无线通信系统以及信号接收方法
    • US07418248B2
    • 2008-08-26
    • US11111942
    • 2005-04-22
    • Koji MaedaSatoru FukumotoHitoshi Yoshino
    • Koji MaedaSatoru FukumotoHitoshi Yoshino
    • H04B1/06
    • H04L25/0328H04B1/12
    • A signal reception device is disclosed that is able to improve interference cancellation capabilities even when signals having different center frequencies exist on the same frequency band. The signal reception device includes an interference suppression unit to generate replicas of plural signals in the received signal and separate the signals by suppressing interference signals. The interference suppression unit includes a signal phase rotator to rotate phases of the signal candidates at preset respective rotational frequencies, the preset rotational frequencies being related to respective center frequencies of the signals in the received signal; a rotational frequency controller to set the preset rotational frequencies; and a replica generator to generate the replicas of the signals by using the phase-rotated signal candidates.
    • 公开了即使当具有不同中心频率的信号存在于相同频带上时也能够改善干扰消除能力的信号接收装置。 信号接收装置包括:干扰抑制部,生成接收信号中的多个信号的副本,并通过抑制干扰信号来分离信号。 干扰抑制单元包括信号相位旋转器,用于以预设的各个旋转频率旋转信号候选的相位,预设的旋转频率与接收信号中的信号的相应中心频率相关; 旋转频率控制器,用于设定预设的旋转频率; 以及副本生成器,用于通过使用相位旋转的信号候选来生成信号的副本。
    • 9. 发明授权
    • Signal separator
    • 信号分离器
    • US07409017B2
    • 2008-08-05
    • US11046841
    • 2005-02-01
    • Koji MaedaSatoru FukumotoHitoshi Yoshino
    • Koji MaedaSatoru FukumotoHitoshi Yoshino
    • H03D1/00
    • H04L25/0328H04B2201/70703H04L25/03254H04L25/03292H04L2025/03375H04L2025/0349
    • A signal separator for separating multiple signals contained in a received signal from each other based on a replica of the received signal is provided. The signal separator comprises a sampling unit configured to sample the received signal at a prescribed sampling timing; an index output unit configured to monitor sampling counts of the sampling unit and output an index signal representing a remainder of a division dividing the sampling counts by a sampling number per a prescribed time period to group the sampled signals; a coefficient-variable filter configured to generate and output a replica of the received signal based on a channel estimation value and a signal point candidate, at least one of the channel estimation value and the signal point candidate being generated according to the index signal; a subtractor configured to subtract the replica from the sampled signal and output a subtraction result as a residual signal; and a maximum likelihood sequence estimator configured to estimate a sequence for each of the multiple signals based on the residual signal, taking into account signal state transition, and output the estimation result at a signal output timing determined by the index signal.
    • 提供了一种信号分离器,用于基于接收信号的副本将包含在接收信号中的多个信号彼此分离。 信号分离器包括:采样单元,被配置为在规定的采样定时对接收信号进行采样; 索引输出单元,被配置为监视采样单元的采样计数,并输出表示采样计数除以每个规定时间段的采样数的除法余数的索引信号,以对采样信号进行分组; 系数可变滤波器,被配置为基于信道估计值和信号点候选来生成并输出接收信号的副本,根据索引信号生成信道估计值和信号点候补中的至少一个; 减法器,被配置为从所述采样信号中减去所述副本,并将减法结果作为残差信号输出; 以及最大似然序列估计器,被配置为基于所述残差信号来估计每个所述多个信号的序列,并考虑信号状态转换,并且在由所述索引信号确定的信号输出定时输出所述估计结果。
    • 10. 发明申请
    • Signal separator
    • 信号分离器
    • US20050195922A1
    • 2005-09-08
    • US11046841
    • 2005-02-01
    • Koji MaedaSatoru FukumotoHitoshi Yoshino
    • Koji MaedaSatoru FukumotoHitoshi Yoshino
    • H04J99/00H04B1/10H04L25/03H04L27/06
    • H04L25/0328H04B2201/70703H04L25/03254H04L25/03292H04L2025/03375H04L2025/0349
    • A signal separator for separating multiple signals contained in a received signal from each other based on a replica of the received signal is provided. The signal separator comprises a sampling unit configured to sample the received signal at a prescribed sampling timing; an index output unit configured to monitor sampling counts of the sampling unit and output an index signal representing a remainder of a division dividing the sampling counts by a sampling number per a prescribed time period to group the sampled signals; a coefficient-variable filter configured to generate and output a replica of the received signal based on a channel estimation value and a signal point candidate, at least one of the channel estimation value and the signal point candidate being generated according to the index signal; a subtractor configured to subtract the replica from the sampled signal and output a subtraction result as a residual signal; and a maximum likelihood sequence estimator configured to estimate a sequence for each of the multiple signals based on the residual signal, taking into account signal state transition, and output the estimation result at a signal output timing determined by the index signal.
    • 提供了一种信号分离器,用于基于接收信号的副本将包含在接收信号中的多个信号彼此分离。 信号分离器包括:采样单元,被配置为在规定的采样定时对接收信号进行采样; 索引输出单元,被配置为监视采样单元的采样计数,并输出表示采样计数除以每个规定时间段的采样数的除法余数的索引信号,以对采样信号进行分组; 系数可变滤波器,被配置为基于信道估计值和信号点候选来生成并输出接收信号的副本,根据索引信号生成信道估计值和信号点候补中的至少一个; 减法器,被配置为从所述采样信号中减去所述副本,并将减法结果作为残差信号输出; 以及最大似然序列估计器,被配置为基于所述残差信号来估计每个所述多个信号的序列,并考虑信号状态转换,并且在由所述索引信号确定的信号输出定时输出所述估计结果。