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    • 6. 发明授权
    • Facsimile apparatus
    • 传真机
    • US5418630A
    • 1995-05-23
    • US946672
    • 1992-09-18
    • Hiroshi MoriMatahira KotaniMotohiko HayashiMasayuki Hachinoda
    • Hiroshi MoriMatahira KotaniMotohiko HayashiMasayuki Hachinoda
    • H04N1/00H04N1/32
    • H04N1/00111H04N1/00095H04N1/32363H04N1/32379H04N1/32496
    • A facsimile apparatus is provided which can enhance the operability and usefulness of portable image reading devices when transmitting documents and which allows effective utilization of the image reading device. The facsimile apparatus includes a main unit and a separable handscanner between which image signals and various control signals are transmitted using an optical communication technique. A document is scanned by a handscanner that generates signals representing the document image. The image signals are temporarily stored in an image memory and transmitted to the main unit when necessary. Depending on the hook state of the telephone, the main unit either transmits the received image signals to a remote station or records the image on recording paper. When the main unit receives image signals over a telephone network, the received image signals are transmitted to the handscanner for storage into the image memory when necessary. This is done for example, when the so-called memory reception mode is set or when a recording section in the main unit is in a non-normal state.
    • 提供了一种传真装置,其可以在传送文件时增强便携式图像读取装置的可操作性和有用性,并且允许图像读取装置的有效利用。 该传真装置包括主单元和可分离的手持扫描器,其间使用光通信技术传输图像信号和各种控制信号。 手持扫描仪扫描文档,生成表示文档图像的信号。 图像信号临时存储在图像存储器中,并在必要时传送到主单元。 根据电话的挂机状态,主机将接收到的图像信号发送到远程站,或者将图像记录在记录纸上。 当主单元通过电话网接收图像信号时,接收的图像信号被发送到手持扫描器,以便在需要时存储到图像存储器中。 例如,当设置所谓的存储器接收模式时或者当主单元中的记录部分处于非正常状态时,这是完成的。
    • 10. 发明授权
    • Image processing method
    • 图像处理方法
    • US4841374A
    • 1989-06-20
    • US931843
    • 1986-11-18
    • Matahira KotaniMotohiko HayashiMasafumi Yamanoue
    • Matahira KotaniMotohiko HayashiMasafumi Yamanoue
    • G06T5/20H04N1/403H04N1/409
    • G06T5/20H04N1/403H04N1/409
    • In an image processing apparatus or a method for expressing a halftone-including original image with binary black-and-white pixels and reproducing the original image in the form of a binary-coded output, the feature of the present invention resides in detecting, relative to each of the pixel units obtained by scanning and sampling the original image, a first average density level representative of the average density level of the pixel unit within a first specific reference pixel region composed of pixel unit groups adjacent to the subject pixel unit on the left and right. A second average density level represents of the average density level of the pixel unit within a second specific reference pixel region composed of a pixel unit group adjacent to the first specific reference pixel region from above. The density level of the subject pixel unit is detected in accordance with the first and second average density levels, thereby enabling correction of the gradation.
    • 在用二进制黑白像素表现包含半色调原始图像并以二进制编码输出再现原始图像的图像处理装置或方法中,本发明的特征在于检测相对于 通过对原始图像进行扫描和采样而获得的每个像素单元,代表由第一特定参考像素区域中的像素单元的平均浓度水平的第一平均浓度水平,所述第一特定参考像素区域由与所述原始图像上的对象像素单元相邻的像素单元组组成 左和右。 第二平均浓度水平表示由与上述第一特定参考像素区域相邻的像素单位组构成的第二特定参考像素区域内的像素单元的平均浓度水平。 根据第一和第二平均浓度水平来检测被摄体像素单元的浓度水平,从而能够校正灰度。