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    • 3. 发明授权
    • Data communication apparatus
    • 数据通信装置
    • US06873428B1
    • 2005-03-29
    • US09627964
    • 2000-07-28
    • Takashi YamauchiKenichi TakahashiKenichi MoritaKeisuke HashimotoKenichi Sawada
    • Takashi YamauchiKenichi TakahashiKenichi MoritaKeisuke HashimotoKenichi Sawada
    • H04M3/00H04M11/00H04N1/00H04N1/32H04N1/333
    • H04N1/00408H04N1/00209H04N1/33323H04N2201/002H04N2201/0093
    • The data communication apparatus of the present invention includes a CPU, operation panel, reading unit, image memory for storing read image data, resolution converter for converting stored image data to an optional resolution, telephone communication unit for transmitting data over a telephone line, network communication unit for transmitting data over an internet line, and a printing unit. The resolution converter converts fine detail data to low detail data and sends the low detail data to the telephone communication unit when transmitting data over the telephone line. In this way data reception reliably occurs simultaneously with data transmission. Thereafter, when fine detail request data including resolution data are received over the telephone line, the data are converted to the desired resolution, and sent to the network communication unit. In this way the apparatus attains excellent operationality since fine detail data are transmitted only as necessary.
    • 本发明的数据通信装置包括CPU,操作面板,读取单元,用于存储读取图像数据的图像存储器,用于将存储的图像数据转换为可选分辨率的分辨率转换器,用于通过电话线传输数据的电话通信单元,网络 用于通过因特网线路发送数据的通信单元和打印单元。 分辨率转换器将精细细节数据转换为低细节数据,并通过电话线传输数据时将低细节数据发送到电话通信单元。 以这种方式,数据接收可靠地与数据传输同时发生。 此后,当通过电话线接收到包括分辨率数据的精细细节请求数据时,将数据转换为期望的分辨率,并发送到网络通信单元。 以这种方式,该装置达到优良的操作性,因为只有在必要时才传输精细的细节数据。