公开(公告)号：US4888795A

公开(公告)日：1989-12-19

申请号：US212498

申请日：1988-06-28

申请人： Fumio Ando ,  Kazuo Ichinokawa ,  Takayuki Yokoyama

发明人： Fumio Ando ,  Kazuo Ichinokawa ,  Takayuki Yokoyama

IPC分类号： H04N1/333 ,  H04N7/12 ,  H04N7/14 ,  H04N7/26 ,  H04N7/30

CPC分类号： H04N7/142 ,  H04N1/33307 ,  H04N19/00 ,  H04N7/122 ,  H04N19/30 ,  H04N19/60 ,  Y10S379/916

摘要： In an audiovisual communication, a first high fram rate video signal is derived from a motion image and converted to a low fram rate low resolution multiframe signal. A second high frame rate video signal is derived from an still image and converted to a single frame high resolution signal. Because of the low frame rates, the frequencies of the low and high resolution signals are within the range of frequencies of a telephone exchange line. A switching matrix is provided to sequentially couple both the low and high resolution signals to a transmission line in response to a mode select signal. The single frame high resolution signal is stored into a memory at the receiving end and repeatedly retrieved out of the memory into a display through the switching matrix.

摘要翻译： 在视听通信中，从运动图像导出第一高帧率视频信号并将其转换为低帧速率低分辨率多帧信号。 从静止图像导出第二高帧率视频信号并将其转换为单帧高分辨率信号。 由于低帧速率，低分辨率信号和高分辨率信号的频率在电话交换线路的频率范围内。 提供开关矩阵以响应于模式选择信号将低分辨率信号和高分辨率信号顺序耦合到传输线。 单帧高分辨率信号被存储在接收端的存储器中，并通过开关矩阵重复地从存储器中取出成显示器。

公开(公告)号：US4581761A

公开(公告)日：1986-04-08

申请号：US736274

申请日：1985-05-20

申请人： Kazuo Ichinokawa ,  Yoichi Sato ,  Tadashi Ohtsuka

发明人： Kazuo Ichinokawa ,  Yoichi Sato ,  Tadashi Ohtsuka

IPC分类号： G06F3/041 ,  G06F3/033 ,  G06K9/22 ,  H01L41/12

CPC分类号： G06F3/041 ,  G06F3/03544 ,  G06K9/228

摘要： A manual image scanning system is operative to read image data of figures or letters depicted on a sheet of paper based on manual operation to input them to a personal computer for data processing. The manual image scanning system comprises a data tablet or a digitizer in which magnetostriction pulses propagate, the data tablet being adapted so that a sheet of paper on which a figure is drawn is placed thereon, and a compact manual image scanner adapted to be manually movably placed on the data tablet, the manual image scanner having a first function to recognize the figure drawn on the paper to produce data indicative of image of the figure, and a second function to sense a position of the scanner to produce data indicative of the position of the scanner. The scanning system further comprises high speed image processing circuitry responsive to the image data and the position data from the scanner to compute coordinates of the scanner on the data tablet, thereby recognizing which portion of the data tablet the image data corresponds to. Thus, this system can sufficiently exhibit features provided by the data tablet and the optical figure recognition device.

摘要翻译： 手动图像扫描系统可操作以基于手动操作读取在一张纸上描绘的图形或图像的图像数据，将其输入个人计算机进行数据处理。 手动图像扫描系统包括磁致伸缩脉冲传播的数据图形输入板或数字转换器，数据图形输入板适于使得其上绘制图形的纸张被放置在其上，以及适于手动移动的小型手动图像扫描仪 放置在数据平板电脑上的手动图像扫描器具有第一功能，以识别在纸张上绘制的图形，以产生指示图形的图像的数据，以及第二功能，用于感测扫描仪的位置以产生指示位置的数据 的扫描仪 扫描系统还包括响应于图像数据和来自扫描仪的位置数据的高速图像处理电路，以计算数据图形输入板上扫描仪的坐标，从而识别图像数据对应的数据图形的哪一部分。 因此，该系统可以充分展现由数据图形输入板和光学图形识别装置提供的特征。

公开(公告)号：US4803737A

公开(公告)日：1989-02-07

申请号：US104525

申请日：1987-09-30

申请人： Yoichi Sato ,  Kazuo Ichinokawa

发明人： Yoichi Sato ,  Kazuo Ichinokawa

IPC分类号： G06F3/042 ,  G01B11/00 ,  G06F3/03 ,  G06F3/033 ,  G06F3/041 ,  G06K11/06 ,  G06K9/82 ,  G06K9/22

CPC分类号： G06F3/0317 ,  G06F3/0321

摘要： A novel digitizer operable on an optical digitization basis comprises a transparent flat plate as a light active surface located on a graphic data recording medium, and a cursor functioning as an optical recognition device movable on the transparent flat plate. A predetermined coordinate correlative pattern is described on or in the transparent flat plate with a fluorescent paint. The cursor comprises a positioning arm provided on the outer periphery thereof to visually trace a data location on the recording medium in accordance with a movement of the cursor to effect positioning of the cursor with respect to the data location, an optical system including a light source, an optical filter assembly, and a light focusing lens etc., and a CCD sensor unit to sense light emitted from a partial pattern which falls within a predetermined limited visual range of the pattern. By irradiation of the pattern, fluorescent light is emitted therefrom. The optical digitizer is operative to determine position coordinates of a graphic data on the recording medium in accordance with an projected image of fluorescent light sensed by the sensor unit. Thus, such an implementation makes it possible to realize a small-sized, high accuracy digitizer completely free from influence of electromagnetic wave noise.

摘要翻译： 基于光学数字化操作的新型数字转换器包括作为位于图形数据记录介质上的光活性表面的透明平板和用作在透明平板上可移动的光学识别装置的光标。 在具有荧光涂料的透明平板上或其中描述预定的坐标相关图案。 光标包括设置在其外周上的定位臂，以根据光标的移动来视觉地跟踪记录介质上的数据位置，以实现光标相对于数据位置的定位;光学系统，包括光源 ，光学滤光器组件和光聚焦透镜等，以及CCD传感器单元，用于感测从部分图案发射的光，其落入图案的预定的有限视觉范围内。 通过照射图案，从其发射荧光。 光学数字转换器用于根据由传感器单元感测的荧光的投影图像来确定记录介质上的图形数据的位置坐标。 因此，这样的实现使得可以实现完全不受电磁波噪声影响的小型，高精度数字化仪。

公开(公告)号：US4810838A

公开(公告)日：1989-03-07

申请号：US70912

申请日：1987-07-08

申请人： Kazuo Ichinokawa ,  Yoichi Sato ,  Tadashi Otsuka

发明人： Kazuo Ichinokawa ,  Yoichi Sato ,  Tadashi Otsuka

IPC分类号： G01B7/00 ,  G06F3/033 ,  G06F3/046 ,  G08C21/00

CPC分类号： G06F3/046

摘要： A frequency coupling position coordinates determination apparatus includes sheet means on which N (positive integer) one-turn coils for detecting a magnetic force and M (less than N) signal lines to which at least one predetermined one-turn coil of the N one-turn coils is connected are arranged, and detecting means for detecting the amplitudes of currents respectively flowing through the M signal lines.

摘要翻译： 频率耦合位置坐标确定装置包括薄片装置，N个（正整数）单匝线圈用于检测磁力，M（小于N）个信号线，N个单向线圈的至少一个预定单匝线圈， 布置有转向线圈，以及检测装置，用于检测分别流过M条信号线的电流的幅度。