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
    • 1. 发明授权
    • Automatic amplitude equalizer
    • 自动幅度均衡器
    • US5978415A
    • 1999-11-02
    • US533119
    • 1995-09-25
    • Kenzo KobayashiToshio KawasakiToshio TamuraHiroyuki KiyanagiTakanori Iwamatsu
    • Kenzo KobayashiToshio KawasakiToshio TamuraHiroyuki KiyanagiTakanori Iwamatsu
    • H03H21/00H03H15/00H03H17/00H04B3/06H04L27/01H03H7/30
    • H04L27/01
    • The invention provides an automatic amplitude equalizer for compensating an amplitude characteristic of an input signal, wherein a control signal for equalizing an inclination amplitude distortion of an input signal is detected making use of a pair of digital demodulated signals to compensate for the amplitude characteristic of the input signal with a high degree of accuracy and which can be constructed with a reduced circuit scale and at a reduce cost. The automatic amplitude equalizer includes a first-order inclination amplitude equalization section for compensating for an amplitude characteristic of an input signal in accordance with a first-order inclination amplitude characteristic, and a control section for discriminating a direction of variation of a value of a first one of a pair of digital demodulated signals originating from the input signal, detecting error information from the other, second one of the digital demodulated signals which is orthogonal to the first signal, and outputting a control signal for the first-order inclination amplitude equalization section based on a correlation between the error information and the direction of variation of the value of the first signal.
    • 本发明提供一种自动幅度均衡器,用于补偿输入信号的幅度特性,其中使用一对数字解调信号来检测用于均衡输入信号的倾斜幅度失真的控制信号,以补偿输入信号的振幅特性 输入信号具有高精确度,并且可以以降低的电路规模和降低成本来构造。 自动幅度均衡器包括:一阶倾斜幅度均衡部分,用于根据一阶倾斜幅度特性补偿输入信号的幅度特性;以及控制部分,用于鉴别第一 从输入信号产生的一对数字解调信号中的一个,从与第一信号正交的数字解调信号中的另一个第二数字解调信号检测出错误信息,并输出一阶倾斜幅度均衡部分的控制信号 基于误差信息与第一信号的值的变化方向之间的相关性。
    • 3. 发明授权
    • Distortion compensating device
    • 失真补偿装置
    • US06487261B2
    • 2002-11-26
    • US09784491
    • 2001-02-15
    • Takanori IwamatsuKenzo KobayashiTakayuki Ozaki
    • Takanori IwamatsuKenzo KobayashiTakayuki Ozaki
    • H04B110
    • H04L25/03006H04L25/062H04L2025/0342
    • A distortion compensating device provided in a receiver for compensating distortion which is added to a signal in a transmission path. The signal is generated in a multi-level modulator of a transmitter in which a digital signal is mapped to one of a plurality of specified signal points in a signal space diagram. The device includes a signal-point-position averaging circuit for producing an average signal point for each of a plurality of distributions of received signal points in the signal space diagram. A discrimination circuit in the device discriminates the average signal point closest to a received signal point from other average signal points in the signal space diagram.
    • 一种在接收机中提供的用于补偿被添加到传输路径中的信号的失真的失真补偿装置。 信号在发射机的多电平调制器中产生,其中数字信号被映射到信号空间图中的多个指定信号点中的一个。 该装置包括信号点位置平均电路,用于产生信号空间图中的接收信号点的多个分布中的每一个的平均信号点。 设备中的识别电路从信号空间图中的其他平均信号点鉴别最接近接收信号点的平均信号点。
    • 4. 发明授权
    • Distortion compensating device
    • 失真补偿装置
    • US06201841B1
    • 2001-03-13
    • US08526766
    • 1995-09-11
    • Takanori IwamatsuKenzo KobayashiTakayuki Ozaki
    • Takanori IwamatsuKenzo KobayashiTakayuki Ozaki
    • H04B110
    • H04L25/03006H04L25/062H04L2025/0342
    • A distortion compensating device provided in a receiver for compensating distortion which is added to a signal in a transmission path. The signal is generated in a multi-level modulator of a transmitter of which a digital signal is mapped to one of a plurality of specified signal points in a signal space diagram. The device includes discrimination circuits for discriminating a received signal according to threshold lines partitioning the signal space diagram into discrimination areas, the threshold lines being defined so that the discrimination areas on an outer side of the signal space diagram having each an area greater than an area of each of the discrimination areas on an inner side of the signal space diagram and a selection circuit for selecting one of a plurality of threshold line patterns based on a level of the received signal which is discriminated according to a selected threshold line pattern.
    • 一种在接收机中提供的用于补偿被添加到传输路径中的信号的失真的失真补偿装置。 该信号是在信号空间图中将数字信号映射到多个指定信号点中的一个的发射机的多电平调制器中产生的。 该装置包括用于根据将信号空间图划分为鉴别区域的阈值线来识别接收信号的鉴别电路,阈值线被定义为使信号空间图的外侧上的每个面积大于面积的区分 信号空间图的内侧上的每个鉴别区域的选择电路,以及用于根据所选择的阈值线路图案识别的接收信号的电平来选择多个阈值线路图案之一的选择电路。
    • 7. 发明授权
    • Cross polarization interference canceler and cross polarization
interference eliminating apparatus using the same
    • 交叉极化干扰消除器和使用其的交叉极化干扰消除装置
    • US5710799A
    • 1998-01-20
    • US190067
    • 1994-02-01
    • Kenzo Kobayashi
    • Kenzo Kobayashi
    • H04L27/38H04B3/06H04B7/00H04B7/005H04B7/10H04J11/00H04B1/10
    • H04B7/005H04B7/002H04B7/10
    • A cross polarization interference canceler includes a digital conversion unit for subjecting a demodulated signal of one channel to an analog-to-digital conversion out of two channels which are independently formed, using carriers having the same frequency but having planes of polarization which are mutually orthogonal. An interference canceling unit is provided for canceling interference caused by the other channel of the two channels, with respect to the demodulated signal which is digitally converted by the digital conversion unit. The canceler further includes an integrator for carrying out an integration process with respect to the demodulated signal which is digitally converted by the digital conversion unit so as to provide a negative feedback to the digital conversion unit.
    • PCT No.PCT / JP93 / 00735 Sec。 371日期1994年2月1日 102(e)1994年2月1日PCT PCT 1993年6月1日PCT公布。 出版物WO93 / 25019 日期:1993年12月9日交叉极化干扰消除器包括数字转换单元,用于使用具有相同频率但具有相同频率的载波的载波,对一个信道的解调信号进行独立形成的两个信道的模数转换 相互正交的极化。 相对于由数字转换单元进行数字转换的解调信号,提供了一种用于消除由两个通道的其它通道引起的干扰的干扰消除单元。 消除器还包括积分器,用于对由数字转换单元进行数字转换的解调信号执行积分处理,以便向数字转换单元提供负反馈。