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    • 22. 发明申请
    • ELECTRICALLY DRIVEN VEHICLE
    • 电动车
    • US20130144480A1
    • 2013-06-06
    • US13816523
    • 2011-07-29
    • Hiroyuki KobayashiAkira KikuchiTomohiko YasudaTakayuki SatouKichio Nakajima
    • Hiroyuki KobayashiAkira KikuchiTomohiko YasudaTakayuki SatouKichio Nakajima
    • G06F17/00
    • G06F17/00B60K7/0007B60K28/16B60K2007/0061B60L15/20B60T8/17616B60T2201/04B60W2520/263B60W2520/28Y02T10/645Y02T10/646Y02T10/7275
    • An electrically driven vehicle equipped with electric motors (1, 4) for driving or braking drive wheels (3, 6), and an electric motor controller (33) for controlling the electric motors includes: wheel speed detectors (9 to 12) for detecting the wheel speed of the drive wheels and that of idler wheels (7, 8); computing means (22 to 28, 35 to 38) for computing the slip ratio of the drive wheels based on the wheel speed of the drive wheels and that of the idler wheels; and a determiner (29) for determining that the drive wheels are slipping if the slip ratio exceeds a slip ratio determination value. If the wheel speed of the idler wheels is lower than set speeds Va2, Vb2, then the determiner (29) changes the slip ratio determination value to a value having as the same sign as, and a larger absolute value than, the values λa2, λb2 used when the wheel speed of the idler wheels is higher than the set speeds Va2, Vb2. This structure shortens acceleration time during acceleration traveling and reduces braking distance during deceleration traveling while inhibiting vibrations of the electrically driven vehicle.
    • 一种配备有用于驱动或制动驱动轮(3,6)的电动机(1,4)的电动车辆和用于控制电动机的电动机控制器(33),包括:用于检测的车轮速度检测器(9至12) 驱动轮的轮速和惰轮(7,8)的转速; 用于基于所述驱动轮的轮速和所述惰轮的车轮速度计算所述驱动轮的打滑比的计算装置(22至28,35至38); 以及如果滑移比超过滑移率确定值,则确定驱动轮滑动的确定器(29)。 如果惰轮的车轮速度低于设定速度Va2,Vb2,则确定器(29)将滑移率判定值改变为具有与值λa2,Vb2相同的符号和更大的绝对值的值, 当惰轮的车轮速度高于设定速度Va2,Vb2时,使用lambdab2。 该结构缩短了加速行驶时的加速时间,并且减少了减速行驶时的制动距离,同时抑制了电动车辆的振动。
    • 25. 发明授权
    • Echo cancelling device, communication device, and echo cancelling method having the error signal generating circuit
    • 回波消除装置,通信装置和具有误差信号发生电路的回波消除方法
    • US08325910B2
    • 2012-12-04
    • US12461329
    • 2009-08-07
    • Hiroyuki Kobayashi
    • Hiroyuki Kobayashi
    • H04M9/08
    • H04M9/082
    • Provided is an echo canceller capable of realizing an excellent echo cancellation performance even in a double talk state. An echo canceller (10) comprises: an adaptive filter (20); a subtractor (30); and an error signal generating circuit (40). The adaptive filter (20) synthesizes a spurious echo signal (y′(k)) from a receiving signal (x(k)) before being delivered from a speaker (3). The subtractor (30) subtracts the spurious echo signal (y′(k)) from an input signal (yin(k)) received by a microphone (2) so as to generate an echo cancellation signal (p(k)) The error signal generating circuit (40) generates an error signal (s(k−1)) by removing a spurious voice signal (r(k−1)) corresponding to a voice signal (v(k)) of a talker from the echo cancellation signal (p(k)). The adaptive filter (20) updates a characteristic of the adaptive filter (20) so that an amplitude of the error signal (s(k−1)) becomes smaller.
    • 提供了即使在双方通话状态下也能够实现优异的回波消除性能的回波消除器。 回声消除器(10)包括:自适应滤波器(20); 减法器(30); 和误差信号发生电路(40)。 在从扬声器(3)传送之前,自适应滤波器(20)从接收信号(x(k))合成寄生回波信号(y'(k))。 减法器(30)从由麦克风(2)接收的输入信号(yin(k))中减去寄生回波信号(y'(k)),以产生回波消除信号(p(k))。误差 信号发生电路(40)通过从回声消除中去除与讲话者的语音信号(v(k))相对应的杂散语音信号(r(k-1))来生成误差信号(s(k-1) 信号(p(k))。 自适应滤波器(20)更新自适应滤波器(20)的特性,使得误差信号(s(k-1))的振幅变小。
    • 30. 发明授权
    • Local oscillator and phase adjusting method for the same
    • 本地振荡器和相位调整方法相同
    • US08237511B2
    • 2012-08-07
    • US12885767
    • 2010-09-20
    • Hiroyuki Kobayashi
    • Hiroyuki Kobayashi
    • H03L7/085H03L7/089H03L7/099
    • H03L7/085H03L2207/50
    • According to one embodiment, a local oscillator includes: an adder that adds an oscillator integer phase and an oscillator fraction phase and outputs the addition value as first phase information; a delayer that outputs an addition output of a frequency command word at one clock before and second phase information as estimated oscillator phase data; a correcting unit that outputs an addition of compensation information to the first phase information as the second phase information when |the first phase information−the estimated oscillator phase data|>|the first phase information+the compensation information−the estimated oscillator phase data| is satisfied and otherwise outputs the first phase information as the second phase information.
    • 根据一个实施例,本地振荡器包括:加法器,其将振荡器整数相位和振荡器分数相位相加,并将加法值作为第一相位信息输出; 延迟器,其在一个时钟前输出频率指令字的相加输出和作为估计振荡器相位数据的第二相位信息; 校正单元,当第一相位信息估计振荡器相位数据| |第一相位信息+补偿信息 - 估计的振荡器相位数据|时,向第一相位信息输出补偿信息的相加作为第二相位信息; 并且否则输出第一相位信息作为第二相位信息。