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    • 1. 发明授权
    • Information forming apparatus
    • 信息形成装置
    • US4366505A
    • 1982-12-28
    • US75113
    • 1979-09-13
    • Shin TsudaSadasuke KurabayashiMinoru Ogata
    • Shin TsudaSadasuke KurabayashiMinoru Ogata
    • H04N1/413H04N1/415H04N7/12
    • H04N1/4135H04N1/415
    • The present invention is featured, in the transmission of pixel (picture element) signals grouped into blocks defined in a series of pixel signals, by sending a control signal instead of said pixel signals when the pixel signals contained in a block are all white signals or sending pixel signals after modulation when black signals are present in said block thereby compressing the time required for transmission, also by selecting the maximum amplitude of said control signal larger than the maximum amplitude of said modulated pixel signals thereby enabling identification of said control signals from said pixel signals, and by sending, when the final black pixel signal in a black signal containing block is followed by consecutive white pixel signals, a control signal instead of such white pixel signals thereby achieving further compression of the transmission time.
    • 本发明的特征在于,当分组为一系列像素信号中定义的块的像素(像素)信号的传输时,当包含在块中的像素信号都是白色信号时,通过发送控制信号而不是所述像素信号, 当黑信号存在于所述块中时,发送像素信号,从而通过选择所述控制信号的最大幅度大于所述调制像素信号的最大幅度,从而压缩传输所需的时间,从而能够识别来自所述调制像素信号的所述控制信号 像素信号,并且当黑色信号包含块中的最终黑色像素信号后面是连续的白色像素信号时,发送控制信号而不是这样的白色像素信号,从而实现传输时间的进一步压缩。
    • 2. 发明授权
    • Facsimile apparatus
    • 传真机
    • US4353097A
    • 1982-10-05
    • US199530
    • 1980-10-22
    • Takashi TakedaMinoru OgataSadasuke Kurabayashi
    • Takashi TakedaMinoru OgataSadasuke Kurabayashi
    • H04N1/327H04N1/333H04N1/32H04N1/42
    • H04N1/32708H04N1/32704H04N1/32741H04N1/32754H04N1/33307H04N1/33338Y10S379/902
    • The facsimile apparatus of the present invention is featured, by the functions of selecting transmission modes of picture signals according to a receiving mode informed of from a called party, for example, of transmitting picture signals representative of a picture reduced in size in case an original documents is larger in size than a recording sheet of paper of activating, in case a called machine is in a automatic reception mode, an acoustic output device incorporated in the called machine through a preliminary telephone talk function to request telephone talk with a called subscriber; and of maintaining a transmission line in its active state to call a called subscriber after transmission of picture signals in case a telephone talk is reserved or, otherwise, releasing the connection after transmission of picture signals in case a telephone talk is not reversed.The above-mentioned functions may be incorporated into a certain transmission protocol thereby accomplishing communication compatibility with other transmission-reception modes of picture signals.
    • 本发明的传真装置的特征在于,通过根据从被叫方通知的接收模式来选择图像信号的传输模式的功能,例如,在原始的情况下发送表示缩小尺寸的图像的图像信号 在被叫机处于自动接收模式的情况下,文档尺寸大于记录纸激活的纸张,通过初步电话通话功能结合在被叫机中的声输出装置,以请求与被叫用户的电话通话; 并且在传输电话谈话被保留的情况下,在发送图像信号之后将传输线路保持在其活动状态来呼叫被叫用户,或者否则在电话谈话没有被反转的情况下释放图像信号之后的连接。 上述功能可以并入一定的传输协议,从而实现与其他图像信号的发送 - 接收模式的通信兼容性。