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    • 86. 发明授权
    • Ink jet head
    • 喷墨头
    • US6050678A
    • 2000-04-18
    • US923404
    • 1997-09-04
    • Hitoshi Yoshida
    • Hitoshi Yoshida
    • B41J2/14B41J2/045
    • B41J2/14274B41J2202/11
    • The value C defined between the width W1 of the ink chamber 2 and the width W2 of the piezoelectric element portion 7 disposed on the vibrating sheet 5, which is obtained based on an equation; C=(W1-W2)/(2.times.W2), is set in a range of 0.5 to 0.8. This value C=(W1-W2)/(2.times.W2) is an index value of an allowable range of displacement amount of the piezoelectric element portion 7, in which the ink ejecting speed is not influenced by the displacement when the piezoelectric element portion 7 is arranged on the vibrating sheet 5 with the displacement from a center of an upper plane of the ink chamber 2.
    • 在油墨室2的宽度W1和设置在振动片5上的压电元件部分7的宽度W2之间定义的值C是基于等式获得的; C =(W1-W2)/(2xW2)被设定在0.5〜0.8的范围内。 该值C =(W1-W2)/(2xW2)是压电元件部7的位移量的容许范围的指标值,其中当压电元件部7为压电元件部7时,喷墨速度不受位移的影响 布置在振动片5上,从墨室2的上平面的中心移位。
    • 87. 发明授权
    • Apparatus for converting character outline data into dot data, having
means for correcting reproduction width of strokes of rotated or
italicized characters
    • 用于将字符轮廓数据转换为点数据的装置,具有用于校正旋转或斜体字符的笔画的再现宽度的装置
    • US5105471A
    • 1992-04-14
    • US653292
    • 1991-02-11
    • Hitoshi YoshidaNaoyuki KawamotoKazuma Aoki
    • Hitoshi YoshidaNaoyuki KawamotoKazuma Aoki
    • B41J2/485G06K15/02G06T11/20G09G5/24
    • G06T11/203G06K15/02G09G5/24G06K2215/0045G06K2215/0054
    • A data converting apparatus for converting outline data of a character into dot data including dot-forming bits each indicative of an image dot to be formed at a position of a corresponding dot-forming picture element which lies within the outline of each stroke of the character, when the character outline is superimposed on a pixel screen wherein picture elements are defined by x-axis and y-axis pixel lines perpendicular to each other. The apparatus includes a device for changing width direction data indicative of a direction of a nominal width of each stroke, if the outline data of the character are subjected to a conversion for rotation or italicization of the character as represented by the converted outline data. The width direction data is changed depending upon the specific condition of the outline data conversion, before at least one of two segments of the character outline which define the width of the stroke is moved in the direction indicated by the width direction data so that the reproduction width of the rotated or italicized character is equal to the nominal width.
    • 一种数据转换装置,用于将字符的轮廓数据转换为点数据,其包括点形成位,每个点形成位指示要形成在相应的点形成图像元素的位置处的图像点,该位置位于字符的每个笔画的轮廓内 当将字符轮廓叠加在像素屏幕上,其中由相互垂直的x轴和y轴像素线定义图像元素时。 该装置包括用于改变表示每个笔划的标称宽度的方向的宽度方向数据的装置,如果该字符的轮廓数据经受用于由转换的轮廓数据表示的字符的旋转或斜体的转换。 宽度方向数据根据轮廓数据转换的具体情况而改变,在限定笔画的宽度的字符轮廓的两个段中的至少一个之间沿宽度方向数据指示的方向移动,使得再现 旋转或斜体字符的宽度等于标称宽度。