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    • 5. 发明授权
    • Data communication apparatus for maintaining data integrity during an
interruption request
    • 用于在中断请求期间保持数据完整性的数据通信装置
    • US5309507A
    • 1994-05-03
    • US774920
    • 1991-10-11
    • Ryuji HosakaNaoki SutoTomoo FukaoNaoharu KodoKazuyuki TsukamotoMinoru Yoshida
    • Ryuji HosakaNaoki SutoTomoo FukaoNaoharu KodoKazuyuki TsukamotoMinoru Yoshida
    • H04N1/32H04M11/00
    • H04N1/32379H04N1/32363H04N1/32619
    • In a data communication apparatus, when detecting a "catch phone" signal sent out from an exchange, a receiving station requests a transmitting station to resend data by use of protocol information. At the transmitting station, the data resending request is detected in a protocol information analyzing unit, and a predetermined unit of data which was transmitted immediately before the present time is resent. The receiving station has a page deleting unit to save the memory area used to store the data resent and avoid printing of unnecessary data. The page deleting unit enables deletion of data received when a "catch phone" call comes in and permits the resent data to be effectively stored in a memory. Also, in the apparatus, a "catch phone" detecting unit in a transmitting station detects that a circuit connection request comes in from a third station on the basis of a "catch phone" signal sent out from an exchange. A page-end detecting unit detects completion of transmission of a predetermined unit of data. A condition judging unit automatically decides whether to open the circuit or not on the occasion of resending data in accordance with the state of a "catch phone" detecting signal "a" and a page-end detecting signal "b". If the page end is detected in a short time after the detection of a "catch phone" signal, the circuit is not opened. If the "catch phone" signal has continued when the page end is detected, after the circuit is temporarily opened, resending of data is executed.
    • 在数据通信装置中,当检测到从交换机发出的“抓取电话”信号时,接收站通过使用协议信息请求发送站重新发送数据。 在发送站处,在协议信息分析单元中检测数据重发请求,并且在紧接在当前时刻之前发送的预定数据单元重新发送。 接收站具有页面删除单元,用于保存用于存储重新发送的数据的存储区域,并避免打印不必要的数据。 页面删除单元能够删除当“抓取电话”呼叫进入时接收的数据,并允许将重发数据有效地存储在存储器中。 此外,在该装置中,发送站中的“抓取电话”检测单元基于从交换机发出的“抓取电话”信号,检测到来自第三站的电路连接请求。 页末端检测单元检测预定数据单位的传输完成。 根据“抓取电话”检测信号“a”的状态和页末端检测信号“b”,条件判断单元根据重发数据自动判定是否打开电路。 如果在检测到“抓取电话”信号后的短时间内检测到页面结束,则电路不会被打开。 如果检测到页面结束时“抓取电话”信号继续,则在电路暂时打开后,执行重新发送数据。
    • 8. 发明授权
    • Facsimile machine
    • 传真机
    • US5392132A
    • 1995-02-21
    • US925012
    • 1992-08-05
    • Taiji YamamotoYoshimi KamimotoToshitaka NakagawaYutaka UeharaRyuji Hosaka
    • Taiji YamamotoYoshimi KamimotoToshitaka NakagawaYutaka UeharaRyuji Hosaka
    • H04N1/00H04N1/32
    • H04N1/00111H04N1/00095H04N1/324H04N1/32406H04N2201/3298
    • A facsimile machine for facsimile communication with another facsimile machine comprises a host machine including processor for processing data; at least one handy-scanner provided separately from the host machine, for scanning an original document, the handy-scanner including reader for reading image data from the original document, and first transmitter for transmitting the image data read by the reader; and at least one relay station for relaying data signals between the host machine and the handy-scanner, the relay station including second transmitter for transmitting the data received from the first transmitter of the handy-scanner to the host machine, and a buffer memory for temporarily storing the image data before the second transmitter transmits the image data to the host machine, the host machine processing the image data transmitted by the second transmitter.
    • 用于与另一传真机传真通信的传真机包括主机,包括用于处理数据的处理器; 至少一个与主机分离的便携式扫描器,用于扫描原始文件,便携式扫描器包括用于从原始文档读取图像数据的读取器,以及用于发送由读取器读取的图像数据的第一发送器; 以及至少一个用于在所述主机和所述便携式扫描仪之间中继数据信号的中继站,所述中继站包括用于将从所述手持扫描器的第一发射机接收的数据发送到所述主机的第二发射机,以及用于 在第二发射机将图像数据发送到主机之前临时存储图像数据,主机处理由第二发射机发送的图像数据。