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    • 1. 发明授权
    • Reception data expander having noise reduced in generation of reception
data error
    • 接收数据扩展器在产生接收数据错误时具有降低的噪声
    • US5925146A
    • 1999-07-20
    • US924503
    • 1997-09-05
    • Kenji MurataKoji Goto
    • Kenji MurataKoji Goto
    • G10L19/00H04B14/04H04B14/06G06F11/00
    • H04B14/068
    • A reception data expander includes: an adaptive differential pulse code modulation (ADPCM) decoder activated when error detection information attains a reception data error nondetected state for expanding an input ADPCM code into a PCM (pulse code modulation) code, and inhibited of its decoding process operation when the error detection information indicates an error detected state; a memory circuit set to a write state when the error detection information attains an error nondetected state for sequentially storing generated ADPCM code, and outputting a stored PCM code when the error detection information is rendered to an error detected state; and a reconstructed output switch for selecting and providing to the next PCM decoder a PCM code when the error detection information attains an error nondetected state, and a PCM code read out from the memory circuit when the error detection information attains an error detected state. Noise generation arising from discontinuity of an ADPCM code at the time of reception data generation can be suppressed effectively without increasing the device complexity and power consumption.
    • 接收数据扩展器包括:当错误检测信息达到用于将输入的ADPCM码扩展为PCM(脉冲编码调制)码的接收数据错误非检测状态时激活的自适应差分脉冲编码调制(ADPCM)解码器,并且禁止其解码处理 当错误检测信息指示错误检测状态时的操作; 当错误检测信息达到用于顺序存储所生成的ADPCM代码的错误检测状态时,设置为写入状态的存储器电路,并且当将错误检测信息呈现为错误检测状态时,输出存储的PCM代码; 以及重构输出开关,用于当错误检测信息达到错误检测状态时,向下一PCM解码器提供PCM代码,以及当错误检测信息达到错误检测状态时从存储器电路读出的PCM代码。 可以有效地抑制在接收数据生成时由ADPCM码的不连续性引起的噪声产生,而不会增加器件的复杂度和功耗。
    • 5. 发明申请
    • Terminal Control System
    • 终端控制系统
    • US20080089253A1
    • 2008-04-17
    • US11632187
    • 2005-07-25
    • Koji GotoHideya KurachiNobuyasu KimuraChiaki Sumi
    • Koji GotoHideya KurachiNobuyasu KimuraChiaki Sumi
    • H04B1/44
    • H04L12/2854
    • A terminal control system is provided that has a main control device, a plurality of terminal devices controlled by the main control device, and communication lines for connecting the main control device and each of the terminal devices so as to allow bidirectional communication, wherein the configuration is simple, communication time is short, and highly reliable bidirectional communication is possible. The terminal control system comprises a main control device 1, a plurality of terminal devices 2 controlled by the main control device 1, and communication lines 3 for connecting the main control device and each of the terminal devices so as to allow bidirectional communication, wherein control data is simultaneously and collectively sent from the main control device 1 to a plurality of the terminal devices 2, and terminal data for each of the terminal devices is independently sent from each of the terminal devices 2 to the main control device 1.
    • 提供了一种终端控制系统,其具有主控制装置,由主控制装置控制的多个终端装置,以及用于连接主控装置和每个终端装置以便允许双向通信的通信线路,其中,所述配置 通信时间短,双向通信可靠性高。 终端控制系统包括主控制装置1,由主控装置1控制的多个终端装置2以及用于连接主控装置和各终端装置的通信线路3,以便允许双向通信,其中控制 数据从主控制装置1同时发送到多个终端装置2,并且各终端装置的终端数据从各终端装置2独立地发送到主控装置1。
    • 9. 发明授权
    • Feed line connection circuit and optical transmission system
    • 馈线连接电路和光传输系统
    • US6157098A
    • 2000-12-05
    • US217172
    • 1998-12-21
    • Junichi KojimaKenichi AsakawaKoji GotoToshio KawazawaKoh-ichi TatekuraEtsuo Nazuka
    • Junichi KojimaKenichi AsakawaKoji GotoToshio KawazawaKoh-ichi TatekuraEtsuo Nazuka
    • H04B10/03H04B10/07H04B10/29H04B10/80H01H47/22
    • H04B10/808Y10T307/747Y10T307/937
    • A feed line connecting circuit for selectively connecting first, second and third feed line connecting terminals under a predetermined current feeding condition comprises a first current detector connected between one of the first and second feed line connecting terminals and a central node for detecting a current over a predetermined value; a first switch connected between the one of the first and second feed line connecting terminals and the central node for connecting said one of the first and second feed line connecting terminals to the central node under an unpowered condition; a selective switch controlled by the first current detector, the selective switch having first and second contacts and a common contact connected to the third feed line connecting terminal, the common contact being connected to the first selective contact when the first current detector does not detect a current over the predetermined value, and to the second selective contact when the first current detector detects a current over the predetermined value; and a second current detector connected between the first selective contact of the selective switch and the central node to change the first switch so as to disconnect said one of the first and second feed line connecting terminals from the central node when detecting a current above the predetermined value.
    • 一种用于在预定的电流馈送条件下选择性地连接第一,第二和第三馈电线连接端子的馈线连接电路包括连接在第一和第二馈电线连接端子之一之间的第一电流检测器和用于检测电流 预定值 连接在所述第一和第二馈电线连接端子之一和所述中心节点之间的第一开关,用于在无电力状态下将所述第一和第二馈电线连接端子之一连接到所述中心节点; 由第一电流检测器控制的选择开关,所述选择开关具有第一和第二触点和连接到第三馈电线连接端子的公共触点,当第一电流检测器不检测到第一电流检测器时,公共触点连接到第一选择触点 当所述第一电流检测器检测到超过所述预定值的电流时,所述第二选择性接触; 以及第二电流检测器,连接在选择开关的第一选择触点和中心节点之间,以改变第一开关,以便当检测到高于预定值的电流时,将第一和第二馈电线连接端子与中心节点断开 值。