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    • 3. 发明授权
    • Updating and restoration method of system file
    • 系统文件的更新和恢复方法
    • US5715462A
    • 1998-02-03
    • US553617
    • 1996-01-18
    • Hiroki IwamotoKenichi AbeTomiya Nakano
    • Hiroki IwamotoKenichi AbeTomiya Nakano
    • G06F12/16G06F9/445G06F11/00G06F11/14G06F12/00G06F17/30
    • G06F11/1433G06F8/65
    • Operating Systems (OS's) of the same form are stored in first and second memory areas. The executing Operating System in the first memory area is terminated and the Operating System in the second area is initiated. After system files stored in the first area are released from access lock, they are replaced by substitute files provided in advance by using a file replacing function of the second Operating system. When such a file replacement fails for some reason, the original operating system files are immediately restored by using a backup file. By this invention, the updating of files previously forbidden by the Operating System in the first memory area to be accessed as well as the restoration of files at the time of update failure can be achieved by software.
    • PCT No.PCT / JP95 / 00300 Sec。 371日期:1996年1月18日 102(e)日期1996年1月18日PCT提交1995年2月27日PCT公布。 WO95 / 27941 PCT公开 日期1995年10月19日相同形式的操作系统(OS)存储在第一和第二存储区域中。 第一个存储区域中的执行操作系统终止,第二个区域的操作系统启动。 存储在第一区域的系统文件从访问锁定中释放后,将使用第二个操作系统的文件替换功能提前提供的替代文件替换。 当这样的文件替换由于某些原因而失败时,将使用备份文件立即恢复原始操作系统文件。 通过本发明,可以通过软件来实现先前被操作系统在要访问的第一存储器区域中被禁止的文件的更新以及更新失败时的文件的恢复。
    • 4. 发明授权
    • Modem mode matching method with PBX dial-in
    • 具有PBX DIAL-IN的调制解调器模式匹配方法
    • US5199071A
    • 1993-03-30
    • US476449
    • 1990-07-10
    • Kenichi AbeMasumi KaneuchiKenji KurashinaKenzou KajiKikuo Sumiyoshi
    • Kenichi AbeMasumi KaneuchiKenji KurashinaKenzou KajiKikuo Sumiyoshi
    • H04Q3/58H04M11/00H04M11/06
    • H04M11/06
    • A method and apparatus for matching operation modes of modems for connection of terminals to a telephone line, i.e., matching operation forms determined by a communication speed, a coding format, a synchronizing format, etc., on both the calling and answering sides of the telephone line. When the answering side detects an extension specifying signal sent from the calling side, an operation mode of a modem corresponding to the extension specifying signal is used to select the specified operation mode from among a plurality of operation modes for modem circuits equipped on the answering side, for matching the operation mode of the answering side modem with that on the calling side. The answering side modem has a function of detecting a push-button dial signal serving as the extension specifying signal, and a function of providing the plurality of operation modes for the modem and optionally changing the operation mode upon an instruction from an answering side terminal. The answering side terminal determines the correlation between the extension specifying signal from the calling side and the operation mode of the calling side modem. A calling terminal sets a call using a telephone number which contains the extension specifying signal of the dial-in service corresponding to the operation mode of the calling side modem, and the answering side terminal converts the extension specifying signal to the corresponding operation mode.
    • PCT No.PCT / JP89 / 00977 Sec。 371日期1990年7月10日 102(e)1990年7月10日PCT PCT 1989年9月27日PCT。 出版物WO90 / 03702 日期:1990年04月5日。一种用于将终端连接到电话线的调制解调器的操作模式相匹配的方法和装置,即在两者上通信速度,编码格式,同步格式等确定的匹配操作形式 电话线路的通话和回答方面。 当应答侧检测到从呼叫侧发送的分机指定信号时,使用与分机指定信号相对应的调制解调器的操作模式从在应答侧配备的调制解调器电路的多种操作模式中选择指定的操作模式 用于将应答侧调制解调器的操作模式与主叫侧的操作模式进行匹配。 应答侧调制解调器具有检测用作扩展指定信号的按钮拨号信号的功能,以及提供调制解调器的多种操作模式的功能,并根据来自应答侧终端的指令任选地改变操作模式。 应答侧终端确定来自主叫侧的扩展指定信号与主叫侧调制解调器的操作模式之间的相关性。 主叫终端使用包含与主叫侧调制解调器的操作模式对应的拨入服务的分机指定信号的电话号码设置呼叫,并且应答侧终端将分机指定信号转换为相应的操作模式。
    • 10. 发明授权
    • Automatically controlling the operation mode of data circuit terminating
equipment in a communication system
    • US5153897A
    • 1992-10-06
    • US476450
    • 1990-07-10
    • Kikuo SumiyoshiKenichi AbeMasumi KaneuchiKenji KurashinaKenzou Kaji
    • Kikuo SumiyoshiKenichi AbeMasumi KaneuchiKenji KurashinaKenzou Kaji
    • H04L29/06H04M11/06
    • H04L29/06H04M11/06
    • The operation modes of a plurality of modems in a communication system are matched with each other for connection of digital terminals to an analog telephone line on both the calling and answering sides of the analog telephone line. For example, operation modes of modems on both sides of the analog telephone line can automatically be matched with each other by transferring a mode instructing signal with DTMF, using multi-frequency DTMF symbols for a select signal employed in the telephone line, between digital terminals connected to both ends of the telephone line. More specifically, even in the case of the calling and answering sides being in different initial operation modes, the different operation modes are matched by setting a desired operation mode on the calling side and generating an off-hook signal on the answering side in response to a calling signal, followed by (1) transmitting an operation mode instructing signal in the form of a code with DTMF from the calling side to the answering side, setting the instructed operation mode on the answering side and returning if it can be set on that side, and then returning an answer tone to the calling side for completing the mode matching; or when the operation mode instructed from the calling side cannot be set on the answering side, transmitting an operable mode in the form of a code with DTMF from the answering side to the calling side, and transmitting again the code corresponding to that mode from the calling side to the answering side if that mode can be set on the calling side, thereby matching operation modes of both the calling and answering sides, or (2) transmitting an operation mode instructing signal in the form of a code with DTMF from the answering side to the calling side, and then carrying out a procedure similar to above (1).