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    • 7. 发明授权
    • Information processing apparatus
    • 信息处理装置
    • US4229768A
    • 1980-10-21
    • US25082
    • 1979-03-29
    • Sadasuke KurahayashiYuzo KatoAsao WatanabeShin TsudaHakaru Muto
    • Sadasuke KurahayashiYuzo KatoAsao WatanabeShin TsudaHakaru Muto
    • G06T9/00H04N1/411H04N1/40
    • H04N1/411G06T9/005
    • In the transmission of binary image signals obtained by scanning of an original document, a high signal compression ratio without deterioration in image quality is achieved by subjecting the binary image signals to a selective thinning process in which the signals of a run-length within a determined range are converted into signals of a determined length and by subsequently coding thus selectively thinned signals. A further improved signal compression is also established without deterioration of image quality by conducting, prior to the selective thinning process, preliminary processes such as elimination of isolated dots in the image or smoothing in the principal and auxiliary scanning directions. Furthermore signal compression ratios are increased by preparing state signals representing the correlation between the first image signals present on a first scan line and the second image signals present on a second scan line to encode and transmit the first image signals and the state signals, and still to allow regeneration of the second image signals at the reception end.Transmission of signals either with coding of a high compression or with a coding of a higher popularity can also be achieved through simple switching of the coding system.Furthermore there is also provided effective thinning on graphic information which could not be easily handled with the conventional thinning processes.
    • 在通过扫描原始文档获得的二进制图像信号的传输中,通过对二进制图像信号进行选择性稀疏处理来实现图像质量的劣化的高信号压缩比,其中,确定的游程长度信号 范围被转换成确定长度的信号,并随后通过随后编码这样选择性地变薄的信号。 还通过在选择性稀化处理之前进行诸如消除图像中的孤立点或在主扫描和辅助扫描方向上的平滑的预处理来进一步改善信号压缩,而不会降低图像质量。 此外,通过准备表示第一扫描线上存在的第一图像信号与存在于第二扫描线上的第二图像信号之间的相关性的状态信号来编码和发送第一图像信号和状态信号,并且仍然 以允许在接收端再生第二图像信号。 通过编码系统的简单切换也可以实现具有高压缩编码或较高流行度编码的信号的传输。 此外,还提供了对于常规稀疏处理不能容易地处理的图形信息的有效缩小。
    • 9. 发明授权
    • Facsimile transmitter
    • 传真发射机
    • US4423439A
    • 1983-12-27
    • US350060
    • 1982-02-18
    • Asao Watanabe
    • Asao Watanabe
    • H04N1/393H04N1/24H04N1/12
    • H04N1/393
    • This invention provides a facsimile transmitter capable, in transmitting the image signals with an image size modified in the principal scanning direction of the original image, of modulating the displacement of the original image in the auxiliary scanning direction in response to the rate of said modification of image size, for example image enlargement.The apparatus is further capable of regulating the displacement in the auxiliary scanning direction inversely proportional to the rate of said modification of image size in the principal scanning direction, further of indicating that said modification is for example an image enlargement, and of showing an intermittently lighted indication for example for an image enlargement during such signal transmission with modified image size in order to facilitate the confirmation of the transmission mode.
    • 本发明提供了一种传真发送机,其能够在以原始图像的主扫描方向修改的图像尺寸的图像信号中发送,以响应于所述修改的速率来调制原始图像在辅助扫描方向上的位移 图像大小,例如图像放大。 该装置还能够调整辅助扫描方向上的位移与主扫描方向上的图像尺寸的变化率成反比,进一步指示所述修改例如是图像放大,并且示出间歇点亮 例如用于在具有修改的图像大小的信号传输期间的图像放大的指示,以便于确认传输模式。
    • 10. 发明授权
    • Apparatus for measuring torque, inertia moment, output and backlash
using stepping motor
    • 使用步进电机测量扭矩,惯性矩,输出和齿隙的装置
    • US5424960A
    • 1995-06-13
    • US949713
    • 1992-09-23
    • Asao WatanabeShuji Satoh
    • Asao WatanabeShuji Satoh
    • G01R31/34G05B19/40
    • G01R31/343
    • Characteristic parameters of a torque of a stepping motor and its associated driving current or voltage are measured in advance to providetorque vs. characteristic information data representative of the torque vs. driving current/voltage characterisitcs. Then, the above characteristic parameters are measured again when a real load is applied to a stepping motor as installed with associated mechanical coupling components. An actual load torque is determined by referencing the subsequently measured characteristic parameters to the previously obtained torque vs. characteristic information data. A load inertia moment can be determined by subtracting the motor's rotor inertia moment from a determined inertia moment of the entire system. Efficiency of the motor can be determined by multiplying the output of the measured load torque by the nuber of revolutions per second thereof and dividing this by the power supplied to the motor or driving circuit. Backlash can be determined from the play in the changes of associated current waveforms corresponding to particular intervals, i.e., an interval from when the direction of rotationof the motor is changed to when the load torque increases again.
    • 预先测量步进电动机的转矩特性参数及其相关的驱动电流或电压,以提供代表转矩与驱动电流/电压特性的特征信息数据。 然后,当将实际负载施加到安装有相关联的机械耦合部件的步进电机时,再次测量上述特性参数。 通过参考随后测量的特征参数到先前获得的扭矩对特性信息数据来确定实际负载转矩。 可以通过从整个系统的确定的惯性矩减去电机的转子惯性力矩来确定负载惯性矩。 电动机的效率可以通过将测量的负载转矩的输出乘以其每秒的转数,并将其除以供给电动机或驱动电路的功率来确定。 可以根据对应于特定间隔的相关联的电流波形的变化,即从马达的旋转方向改变到负载转矩再次增加的间隔,从游隙中确定间隙。