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
    • 31. 发明授权
    • Reception data expander having noise reduced in generation of reception
data error
    • 接收数据扩展器在产生接收数据错误时具有降低的噪声
    • US5925146A
    • 1999-07-20
    • US924503
    • 1997-09-05
    • Kenji MurataKoji Goto
    • Kenji MurataKoji Goto
    • G10L19/00H04B14/04H04B14/06G06F11/00
    • H04B14/068
    • A reception data expander includes: an adaptive differential pulse code modulation (ADPCM) decoder activated when error detection information attains a reception data error nondetected state for expanding an input ADPCM code into a PCM (pulse code modulation) code, and inhibited of its decoding process operation when the error detection information indicates an error detected state; a memory circuit set to a write state when the error detection information attains an error nondetected state for sequentially storing generated ADPCM code, and outputting a stored PCM code when the error detection information is rendered to an error detected state; and a reconstructed output switch for selecting and providing to the next PCM decoder a PCM code when the error detection information attains an error nondetected state, and a PCM code read out from the memory circuit when the error detection information attains an error detected state. Noise generation arising from discontinuity of an ADPCM code at the time of reception data generation can be suppressed effectively without increasing the device complexity and power consumption.
    • 接收数据扩展器包括:当错误检测信息达到用于将输入的ADPCM码扩展为PCM(脉冲编码调制)码的接收数据错误非检测状态时激活的自适应差分脉冲编码调制(ADPCM)解码器,并且禁止其解码处理 当错误检测信息指示错误检测状态时的操作; 当错误检测信息达到用于顺序存储所生成的ADPCM代码的错误检测状态时,设置为写入状态的存储器电路,并且当将错误检测信息呈现为错误检测状态时,输出存储的PCM代码; 以及重构输出开关,用于当错误检测信息达到错误检测状态时,向下一PCM解码器提供PCM代码,以及当错误检测信息达到错误检测状态时从存储器电路读出的PCM代码。 可以有效地抑制在接收数据生成时由ADPCM码的不连续性引起的噪声产生,而不会增加器件的复杂度和功耗。
    • 36. 发明授权
    • Robot
    • 机器人
    • US06917856B2
    • 2005-07-12
    • US10343913
    • 2002-04-12
    • Kenji Murata
    • Kenji Murata
    • B25J9/16B25J9/18B25J19/00G05B19/04G05B19/18
    • B25J9/1674G05B2219/40218
    • It is constructed so as to detect a joint movement position of a robot arm by a position detector and a joint movement speed is calculated from change amounts of the joint movement position and elapsed time and is compared with an allowable movement speed and unlocking and locking of a brake are controlled so that the joint movement speed of an arm at the time of brake unlocking becomes within a constant value even when a shape, an attitude and a load condition of the robot arm vary. Therefore, movement work of the arm by the brake unlocking can be performed alone and a robot with high safety can be obtained.
    • 其结构是通过位置检测器检测机器人手臂的关节运动位置,并且根据关节运动位置和经过时间的变化量计算关节运动速度,并将其与允许的运动速度进行比较并解锁和锁定 控制制动器,使得即使当机器人手臂的形状,姿态和负载条件变化时,制动器解锁时的臂的关节移动速度也变为恒定值。 因此,可以单独执行通过制动器解锁的臂的移动工作,并且可以获得具有高安全性的机器人。
    • 37. 发明授权
    • Sub woofer system
    • 次低音扬声器系统
    • US06771784B2
    • 2004-08-03
    • US09926319
    • 2002-01-09
    • Kenji Murata
    • Kenji Murata
    • H03G500
    • H04R1/26H04R3/04H04R3/14
    • A sub woofer system is constituted of a real time digital signal processing part 5 that includes an A/D converter 5a, a low pass filter block 5b, a delay block 5c, and a D/A converter block 5d, an analog power amplifier 6 and a speaker 7. The length of delay time of the delay block 5c is set so that the length of group delay time of the digital signal processing part 5 may equal an integral multiple of the length of time corresponding to one wavelength of the crossover point frequency between the digital signal processing part 5 and a main speaker 4. The signal processing is performed under the conditions that have been set as such. In this case, a construction is made up wherein the length of a group delay time produced in the digital type real time digital signal processing part can be set to a given value. By this construction, it is possible to provide a sub woofer system which can improve the phase interference between the main speaker and the sub woofer system at the crossover point between the two.
    • 低音扬声器系统由包括A / D转换器5a,低通滤波器块5b,延迟块5c和D / A转换器块5d的实时数字信号处理部分5构成,模拟功率放大器6 和扬声器7.延迟块5c的延迟时间的长度被设置为使得数字信号处理部分5的组延迟时间的长度可以等于与交叉点的一个波长相对应的时间长度的整数倍 在数字信号处理部分5和主扬声器4之间的频率。信号处理在已被设置为这样的条件下执行。 在这种情况下,构成了数字型实时数字信号处理部中产生的群延迟时间的长度可以设定为给定值的结构。 通过这种结构,可以提供一种可以在两者之间的交叉点改善主扬声器和次低音扬声器系统之间的相位干扰的次低音扬声器系统。