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    • 2. 发明授权
    • Image transmission system
    • 图像传输系统
    • US4953196A
    • 1990-08-28
    • US192648
    • 1988-05-11
    • Yasunori IshikawaNoboru MurayamaKoichi SuzukiKoji KuwataHiroshi ShimuraMasaaki Ishikawa
    • Yasunori IshikawaNoboru MurayamaKoichi SuzukiKoji KuwataHiroshi ShimuraMasaaki Ishikawa
    • H04N7/14
    • H04N7/148
    • A video phone comprising an input device for entering input image data to be transmitted, a circuit for digitizing the input image data into digital image data, a memory for storing the digital image data, a first circuit for producing an output image signal based on the digital image data from the memory, a display device for displaying an image of the output image signal, a second circuit for compressing the digital image data from the memory into compressed image data, a telephone part having telephone functions, a line control circuit coupled to a public analog telephone line for selectively coupling the second circuit and the telephone part to the public analog telephone line, and a control device. The control device controls at least the memory and the second circuit so that the compressed image data related to the input image data is read out from the memory and supplied simultaneously to the first and second circuits in an image transmitting mode and the compressed image data related to a voice frequency signal received through the public analog telephone line is stored in the memory and read out therefrom to be supplied to the first circuit in an image receiving mode.
    • 一种视频电话,包括用于输入要发送的输入图像数据的输入装置,用于将输入图像数据数字化为数字图像数据的电路,用于存储数字图像数据的存储器,用于产生基于该图像数据的输出图像信号的第一电路 来自存储器的数字图像数据,用于显示输出图像信号的图像的显示装置,用于将数字图像数据从存储器压缩成压缩图像数据的第二电路,具有电话功能的电话部件,耦合到 用于将第二电路和电话部件选择性地耦合到公共模拟电话线的公共模拟电话线,以及控制装置。 所述控制装置至少控制所述存储器和所述第二电路,使得与所述输入图像数据相关的压缩图像数据从所述存储器读出,并以图像发送模式同时提供给所述第一和第二电路,并且所述压缩图像数据相关 通过公共模拟电话线接收到的语音频率信号被存储在存储器中并从中读出,以便以图像接收模式提供给第一电路。
    • 3. 发明授权
    • Gradation data processing apparatus
    • 分级数据处理装置
    • US4797943A
    • 1989-01-10
    • US933021
    • 1986-11-20
    • Noboru MurayamaHiroshi Shimura
    • Noboru MurayamaHiroshi Shimura
    • H04N1/40H04N1/405
    • H04N1/40H04N1/4055
    • A gradation data processing apparatus comprising,an extractor for extracting a gradation data corresponding to first small region of an original image distributed in a 2-dimension and a gradation data corresponding to a second small region in adjacent with said first small region,a detector for detecting whether a difference between a content of the gradation data corresponding to the first small region and a content of the gradation data corresponding to the second small region in adjacent with said first small region is within a predetermined range or not, anda generator for generating a data indicating a maximum value in a gradation if said difference exceeds an upper value of the range, while generating a data indicating a minimum value in the gradation if said difference goes below a lower value of the range as an output gradation data.
    • 一种灰度数据处理装置,包括:提取器,用于提取对应于以二维分布的原始图像的第一小区域的灰度数据;以及对应于与所述第一小区域相邻的第二小区域的灰度数据;检测器, 检测与所述第一小区域相对应的灰度数据的内容与对应于与所述第一小区域相邻的所述第二小区域的灰度数据的内容之间的差是否在预定范围内;以及发生器,用于生成 如果所述差超过所述范围的上限值,则指示灰度中的最大值的数据,同时当所述差值低于所述范围的较低值作为输出灰度数据时产生指示所述灰度中的最小值的数据。
    • 4. 发明授权
    • System for processing an image having both letter and photographic
information
    • 用于处理具有字母和照片信息的图像的系统
    • US4750209A
    • 1988-06-07
    • US940920
    • 1986-12-12
    • Hiroshi ShimuraKoichi SuzukiNoboru Murayama
    • Hiroshi ShimuraKoichi SuzukiNoboru Murayama
    • H04N1/41G06K9/20H04N1/40G06K9/34
    • G06K9/00456H04N1/40062
    • An image processing system processes a composite original image having both of letter and picture information to have the letter information extracted. An image signal in the form of pixel is checked to see if it is a letter pixel, in which case "1" is assigned, or a picture pixel, in which case "0" is assigned, so that a plane data of "1s" and "0s" is obtained and stored in a plane memory. At the same time, the image signal is converted into a binary image data which is stored into an image memory. The data stored in the plane memory is subjected to two-step digital filtering processing, first step to eliminate isolated black and white dots and second step to smooth the data, thereby obtaining filtered data which define one or more letter regions in an original document. Using the thus defined letter region data, the binary image data stored in the image memory is processed, thereby extracting only the letter image data.
    • 图像处理系统处理具有字母和图像信息两者的复合原始图像以提取字母信息。 检查像素形式的图像信号,以查看是否是字母像素,在这种情况下分配“1”,或者分配图像像素,在这种情况下分配“0”,使得平面数据为“1” “和”0s“并存储在平面存储器中。 同时,将图像信号转换成存储在图像存储器中的二进制图像数据。 存储在平面存储器中的数据经受两步数字滤波处理,第一步骤是消除孤立的黑白点,第二步骤平滑数据,从而获得在原始文档中定义一个或多个字母区域的滤波数据。 使用如此定义的字母区域数据,处理存储在图像存储器中的二进制图像数据,从而仅提取字母图像数据。
    • 5. 发明授权
    • Laser printer interface circuit
    • 激光打印机接口电路
    • US4760406A
    • 1988-07-26
    • US837542
    • 1986-03-07
    • Tsutomu SatoNoboru MurayamaHiroshi Shimura
    • Tsutomu SatoNoboru MurayamaHiroshi Shimura
    • B41J29/38G06F3/12G06K15/00G01D9/00G06F9/00H04N1/21H04Q9/00
    • G06F3/1293
    • A printer interface circuit is provided in a host system so as to allow a printer having its own clock signal for its printing operation to be directly connected to the host system. In the present invention, data to be printed is first stored in a data latch as supplied in association with the clock signal of the host system, and then the data stored in the data latch is transferred to the printer in association with the printer. Thus, even if use is made of a laser printer, which has its own clock signal, it can be directly connected to a host system, such as a personal computer. In the preferred embodiment, the printer interface circuit modifies the frequency of the clock signal of the printer and the data is transferred to the printer at this modified frequency, so that the data may be expanded when printed.
    • 在主机系统中提供打印机接口电路,以便允许具有其自己的时钟信号的打印机用于其打印操作直接连接到主机系统。 在本发明中,首先将要打印的数据存储在与主机系统的时钟信号相关联地提供的数据锁存器中,然后存储在数据锁存器中的数据与打印机相关联地传送到打印机。 因此,即使使用具有其自己的时钟信号的激光打印机,也可以直接连接到诸如个人计算机的主机系统。 在优选实施例中,打印机接口电路修改打印机的时钟信号的频率,并且以该修改的频率将数据传送到打印机,使得打印时可以扩展数据。
    • 10. 发明授权
    • Dynamic image transmission system
    • 动态图像传输系统
    • US4991009A
    • 1991-02-05
    • US376861
    • 1989-07-07
    • Koichi SuzukiNoboru Murayama
    • Koichi SuzukiNoboru Murayama
    • H04N7/36
    • H04N19/503
    • A dynamic image transmission system comprises an input part for inputting image data of an input image, memory for storing the image data successively input from the input part and for storing transmitting image data which is to be transmitted, a detecting part for detecting each dynamic line in which corresponding picture element data of two successive frames stored in the memory differ by more than a predetermined data change quantity, a transmission part for transmitting the image data stored in the memory to a transmission path as the transmitting image data, and control part for controlling operations of the detecting part and the transmission part during an image transmission mode so that image data related to a first frame of the input image is transmitted as the transmitting image data but only the image data of each dynamic line is transmitted as the transmitting image data with respect to second and subsequent frames.
    • 动态图像传输系统包括用于输入输入图像的图像数据的输入部分,用于存储从输入部分连续输入的图像数据的存储器,以及用于存储要发送的发送图像数据的检测部分,用于检测每个动态线 其中存储在存储器中的两个连续帧的相应图像元素数据相差大于预定数据改变量,用于将存储在存储器中的图像数据发送到作为发送图像数据的传输路径的发送部分,以及用于 在图像传输模式期间控制检测部分和发送部分的操作,使得与输入图像的第一帧相关的图像数据作为发送图像数据被发送,而仅发送每个动态线的图像数据作为发送图像 相对于第二帧和后续帧的数据。