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    • 1. 发明授权
    • Encryption communication method and terminal device for encryption
communication
    • 加密通信方法和终端设备进行加密通信
    • US5574789A
    • 1996-11-12
    • US341205
    • 1994-12-05
    • Mitsuhiro NakamuraKoichi ShibataMasakazu OyamaToshihiro Mori
    • Mitsuhiro NakamuraKoichi ShibataMasakazu OyamaToshihiro Mori
    • H04N1/32G09C1/00H04L9/08H04L9/12H04N1/44H04L9/16
    • H04L9/12H04L9/0656H04N1/4486
    • In a calling facsimile, if an operator sets an encryption communication mode, a random number sequence is generated by a random number generating section 15. A control section 11 produces an encryption key from the random number sequence, and transmits the random number sequence used for producing the encryption key to a telephone line 3 with the random number sequence included in NSS which is an option signal. At the same time, an encryption/decryption processing section 16 subjects information to be transmitted to encryption processing on the basis of the encryption key. The encrypted information is transmitted to the telephone line 3. On the other hand, in a called facsimile, the encryption key is reproduced on the basis of the random number sequence included in the NSS, and the received information is decrypted on the basis of the reproduced encryption key. Accordingly, the encryption key need not be determined in advance between a transmitter and a receiver. Further, the encryption key does not leak during transmission, thereby protecting the security of communication.
    • 在呼叫传真中,如果操作者设置加密通信模式,则由随机数生成部分15生​​成随机数序列。控制部分11从随机数序列产生加密密钥,并且发送用于 使用包括在作为选项信号的NSS中的随机数序列产生加密密钥到电话线3。 同时,加密/解密处理部分16基于加密密钥来对要发送的信息进行加密处理。 加密的信息被发送到电话线3.另一方面,在被叫传真机中,根据包括在NSS中的随机数序列再现加密密钥,并且基于 再现加密密钥。 因此,不需要在发送器和接收器之间预先确定加密密钥。 此外,加密密钥在传输期间不泄漏,从而保护通信的安全性。
    • 2. 发明授权
    • Facsimile apparatus capable of connecting with computer
    • 能与计算机连接的传真机
    • US5847843A
    • 1998-12-08
    • US747719
    • 1996-11-12
    • Koichi ShibataMasakazu OyamaMitsuhiro NakamuraToshihiro Mori
    • Koichi ShibataMasakazu OyamaMitsuhiro NakamuraToshihiro Mori
    • H04N1/00H04N1/32
    • H04N1/00238H04N1/00236H04N1/00241H04N1/32005
    • A facsimile apparatus which enables the printer section and document original reading section thereof to be used as a printer and image reader, respectively, for a personal computer. To use the reading section for reading a document original as the image reader for the personal computer, the operation mode of the facsimile apparatus is switched from an ordinary operation mode to a PC-FAX mode. When a document original is read by the reading section in the PC-FAX mode, the facsimile apparatus behaves as if it received a call-in of facsimile correspondence, and sends image data to the personal computer. Further, by operating an operation section, a printer function call number is registered for an external input printing function which enables information input to an interface to be printed out. When a call-out command designating a phone number is sent to the facsimile apparatus from the personal computer, a control section judges if the phone number agrees with the printer function call number. If the input number agrees with the printer function call number, information input from the personal computer is printed out by a printer section.
    • 一种能够使打印机部分和文档原稿阅读部分分别用作个人计算机的打印机和图像读取器的传真装置。 为了使用读取部分读取原稿作为个人计算机的图像读取器,传真装置的操作模式从普通操作模式切换到PC-FAX模式。 当在PC-FAX模式中由读取部分读取原稿时,传真装置的行为就好像接收到传真通信的呼入一样,并将图像数据发送到个人计算机。 此外,通过操作操作部分,为外部输入打印功能注册打印机功能呼叫号码,该外部输入打印功能使能够输入到要打印的接口的信息输入。 当指定电话号码的呼出命令从个人计算机发送到传真设备时,控制部分判断电话号码是否与打印机功能呼叫号码一致。 如果输入号码与打印机功能呼叫号码一致,则从个人计算机输入的信息由打印机部分打印出来。
    • 3. 发明授权
    • Transmitting method in facsimile
    • 传真方式传真
    • US5790266A
    • 1998-08-04
    • US707579
    • 1996-09-05
    • Mitsuhiro NakamuraKoichi ShibataMasakazu OyamaToshihiro Mori
    • Mitsuhiro NakamuraKoichi ShibataMasakazu OyamaToshihiro Mori
    • H04M3/42H04M11/00H04N1/32H04N1/327H04N1/00
    • H04N1/327H04N1/32791
    • In the present invention, a transmission control procedure from the time when a calling facsimile receives a digital identification signal from a called facsimile to the time when the calling facsimile transmits a facsimile message is carried out by control signals using tone signals. For example, the calling facsimile sends out to the called facsimile a first control signal indicating that facsimile transmission should be performed through a particular procedure if it receives the digital identification signal from the called facsimile. The called facsimile sends to the calling facsimile, if it receives the first control signal, a second control signal indicating that the first control signal is received. The calling facsimile sends out to the called facsimile a third control signal indicating that a facsimile message should be sent and then, sends out the facsimile message to the called facsimile if it receives the second control signal.
    • 在本发明中,从主叫传真机接收到从被叫传真机到数字识别信号到呼叫传真发送传真信息的时间的发送控制过程是通过使用音调信号的控制信号执行的。 例如,呼叫传真向被叫传真机发送指示如果从被叫传真机接收到数字识别信号,则通过特定过程执行传真传输的第一控制信号。 被叫传真机如果接收到第一控制信号,则发送到主叫传真机,指示接收到第一控制信号的第二控制信号。 呼叫传真向被叫传真发送指示传真消息应发送的第三控制信号,然后如果接收到第二控制信号则将传真消息发送到被叫传真机。