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    • 43. 发明授权
    • Information terminal apparatus
    • 信息终端设备
    • US06363137B1
    • 2002-03-26
    • US09283582
    • 1999-04-01
    • Atsushi NakaoMasayuki NatsumiTakashi YoshidaSusumu Kitaguchi
    • Atsushi NakaoMasayuki NatsumiTakashi YoshidaSusumu Kitaguchi
    • H04M124
    • H04M1/72527
    • Objects of the invention are to enable different kinds of communication apparatus having interfaces of different input/output methods and different signal voltages to be connected to the same interface; to achieve communication processing appropriate to the automatically detected attribute of the communication apparatus; to explicitly indicate optimum communication means; and to enable communications to be automatically resumed even if the communication apparatus is replaced in the middle of communication. The communication apparatus comprises: means for sending the connected state of the communication apparatus and an attribute of the communication apparatus which connected to information terminal apparatus; a signal line for sending a connection notification to the information terminal apparatus; and a signal input section and a signal output section for transferring control signals and data to and from the information terminal apparatus.
    • 本发明的目的是使具有不同输入/输出方法和不同信号电压的接口的不同种类的通信装置能够连接到同一接口; 以实现与通信设备的自动检测属性相适应的通信处理; 明确指出最佳通信手段; 并且即使在通信中间更换通信装置,也能够自动恢复通信。 通信装置包括:发送通信装置的连接状态的装置和连接到信息终端装置的通信装置的属性; 用于向所述信息终端装置发送连接通知的信号线; 信号输入部和信号输出部,用于向信息终端装置传送控制信号和数据。
    • 46. 发明授权
    • Optical-signal/electric-signal converting device
    • 光信号/电信号转换装置
    • US5982514A
    • 1999-11-09
    • US088104
    • 1998-06-01
    • Takahiro SuzukiNoboru KanzakiTakashi YoshidaKenji AsanumaEiichi Nabeta
    • Takahiro SuzukiNoboru KanzakiTakashi YoshidaKenji AsanumaEiichi Nabeta
    • H04B10/152H04B10/155H04B10/24H04L25/493H04B10/08
    • H04L25/493H04B10/40H04B10/502H04B10/508H04B10/541H04B10/564H04B10/676
    • An optical-signal/electric-signal converting device communications system for a communications system that establishes communications using electric and optical signals. The converting device converts an electric transmission signal into an optical transmission signal and an optical transmission signal into an electric transmission signal. The converting device includes an electric signal receiving circuit for receiving the electric transmission signal transmitted from the host computer of the communications system through an electric transmission line, and a modulating circuit for modulating the electric signal sent from the electric signal receiving circuit into a pulse signal having pulses of a smaller width. The converting device also includes an optical signal receiving circuit for receiving the optical transmission signal from the optical transmission line of the system and converting the received signal into an electric signal using a light-receiving element, and a demodulation circuit for demodulating the electric signal received from the optical signal receiving circuit into a pulse signal having pulses of a larger width.
    • 一种用于建立使用电和光信号的通信的通信系统的光信号/电信号转换装置通信系统。 转换装置将电传输信号转换为光传输信号和光传输信号为电传输信号。 转换装置包括:电信号接收电路,用于通过电传输线路接收从通信系统的主计算机发送的电传输信号;以及调制电路,用于将从电信号接收电路发送的电信号调制成脉冲信号 具有较小宽度的脉冲。 转换装置还包括光信号接收电路,用于从系统的光传输线路接收光传输信号,并使用光接收元件将接收信号转换为电信号;以及解调电路,用于解调所接收的电信号 从光信号接收电路到具有较大宽度的脉冲的脉冲信号。
    • 48. 发明授权
    • Optical communications device
    • 光通信设备
    • US5969839A
    • 1999-10-19
    • US939631
    • 1997-09-29
    • Takashi YoshidaNoboru KanzakiKenji AsanumaEiichi Nabeta
    • Takashi YoshidaNoboru KanzakiKenji AsanumaEiichi Nabeta
    • H04B10/155H04B10/24H04B10/04
    • H04B10/508H04B10/40H04B10/502H04B10/505H04B10/524H04B10/564
    • An optical communications device is disclosed which is equipped with a transmission unit adapted to send binary-coded electrical pulse signals to another optical communications device in the form of optical pulse signals. The transmission unit includes a modulator for producing an electrical pulse signal of a narrow pulse width only at each of rising and falling edges in the binary-coded electrical pulse signals and an electro-optic converter for converting the electrical pulse signal of a narrow pulse width into an optical pulse signal of a narrow pulse signal. As an alternative, the transmission unit includes a modulator which produces an electrical pulse signal of a narrow pulse width for each bit in the binary-coded electrical pulse signals only when it is at a high level and an electro-optic converter which converts the electrical pulse signal of a narrow pulse width into an optical pulse signal of a narrow pulse width.
    • 公开了一种光通信设备,其配备有适于以光脉冲信号的形式向另一光通信设备发送二进制编码的电脉冲信号的传输单元。 发送单元包括用于仅在二进制编码电脉冲信号中的上升沿和下降沿中产生窄脉冲宽度的电脉冲信号的调制器和用于转换窄脉冲宽度的电脉冲信号的电光转换器 变成窄脉冲信号的光脉冲信号。 作为替代方案,传输单元包括调制器,其仅在二进制编码的电脉冲信号中处于高电平时产生每个位的窄脉冲宽度的电脉冲信号,以及转换电气 窄脉冲宽度的脉冲信号转换成窄脉冲宽度的光脉冲信号。