Interface circuit to quickly establish a loop current
    1.
    发明授权
    Interface circuit to quickly establish a loop current 失效
    接口电路快速建立回路电流

    公开(公告)号:US5329584A

    公开(公告)日:1994-07-12

    申请号:US991459

    申请日:1992-12-16

    申请人: Takashi Nagato

    发明人: Takashi Nagato

    CPC分类号: H04M3/005 H04M19/001

    摘要: According to the invention, an interface circuit for quickly establishing a DC loop current in response to off-hook detection is provided by a circuit which uses a transistor, where its collector electrode is connected to the first one of the telephone lines; an emitter resistor connected between an emitter electrode of the transistor and the second one of the telephone lines; a bias resistor having a first terminal connected to the collector electrode; a Zener diode connected between a second terminal of the bias resistor and the second line; a first capacitor connected in parallel to the constant-voltage means; switching means connected between the second terminal of the bias resistor and a base electrode of the transistor for the switching means to be conductive in response to an off-hook signal; and charging means, typically formed of a series connection of a capacitor, a resistor and a Zener diode, connected in parallel to the bias resistor so as to allow a current to flow through the series connection to charge the first capacitor only during a transient of applying a Dc voltage from the telephone lines onto the transistor.

    摘要翻译: 根据本发明,通过使用晶体管的电路提供响应于摘机检测来快速建立DC环路电流的接口电路,其中集电极连接到第一个电话线; 连接在晶体管的发射极和第二电话线之间的发射极电阻; 偏置电阻器,其具有连接到所述集电极的第一端子; 连接在偏置电阻器的第二端子和第二线路之间的齐纳二极管; 与恒压装置并联连接的第一电容器; 连接在偏置电阻器的第二端子和用于开关装置的晶体管的基极之间的开关装置响应于摘机信号而导通; 以及通常由电容器,电阻器和齐纳二极管的串联连接形成的充电装置,该电容器,电阻器和齐纳二极管并联连接到偏置电阻器,以便允许电流流过串联连接,以在第一电容器的瞬态 将电话线上的Dc电压施加到晶体管上。

    Bearing with dynamic pressure grooves and method for manufacturing the
same
    2.
    发明授权
    Bearing with dynamic pressure grooves and method for manufacturing the same 失效
    带有动态压力槽的轴承及其制造方法

    公开(公告)号:US5129739A

    公开(公告)日:1992-07-14

    申请号:US807421

    申请日:1991-12-13

    IPC分类号: F16C33/10 F16C33/20

    摘要: A bearing with dynamic pressure grooves includes an outer cylinder made of a metal and a resin sheet bonded to the inner peripheral surface of the outer cylinder. The resin sheet is made of a thermoplastic resin, for example, a polytetra fluoroethylene, as a main component mixed with a wear-resistant improving material, for example, graphite or the like. The resin sheet is formed with a pattern of dynamic pressure generating grooves formed in an inner surface by plastic work. The pattern of grooves is varied depending on the types of relative movement between the outer cylinder and a shaft body, i.e., whether an axial linear movement, a rotational movement, or a spiral movement.

    摘要翻译: 具有动压槽的轴承包括由金属制成的外筒和结合到外筒的内周面的树脂片。 该树脂片由例如石墨等与耐磨改善材料混合的主要成分的热塑性树脂,例如聚四氟乙烯制成。 树脂片通过塑性加工形成在内表面上形成的动态压力产生槽的图案。 凹槽的图案根据外筒和轴体之间的相对运动的类型,即轴向线性运动,旋转运动或螺旋运动而变化。

    Pulse code modulation terminal equipment
    3.
    发明授权
    Pulse code modulation terminal equipment 失效
    脉码调制终端设备

    公开(公告)号:US4912699A

    公开(公告)日:1990-03-27

    申请号:US352403

    申请日:1989-05-16

    申请人: Takashi Nagato

    发明人: Takashi Nagato

    IPC分类号: H04J3/14 H04M3/24

    CPC分类号: H04M3/244 H04J3/14

    摘要: A pulse code modulation terminal equipment, having a first hold circuit which continuously supplies a multiplexer unit with a seizure signal supplied from a seizure supervisory circuit during a predetermined time after a fault is detected. The first hold circuit prevents the seizure signal from being supplied to the multiplexer unit after the lapse of the predetermined time. A second hold circuit continuously supplies a related trunk of an exchange with an answer signal supplied from an answer supervisory circuit even after the fault is detected.

    Ring trip circuit
    6.
    发明授权
    Ring trip circuit 失效
    环路跳闸电路

    公开(公告)号:US5293420A

    公开(公告)日:1994-03-08

    申请号:US34499

    申请日:1993-03-19

    申请人: Takashi Nagato

    发明人: Takashi Nagato

    IPC分类号: H04M3/02 H04M19/02 H04M3/00

    CPC分类号: H04M19/026

    摘要: A first part for picking up a signal being proportional to a ringing tone signal transferred on a subscriber line; a second part for extracting an ac component from the thus picked-up signal; and a third part for receiving both the signals from the first and second parts and comparing, in level, these two signals to produce a ringer stop signal if the level difference therebetween becomes larger than a setpoint value, and thus, a conventional low-pass filter can be removed.

    摘要翻译: 用于拾取与在用户线路上传送的振铃音信号成比例的信号的第一部分; 第二部分,用于从所拾取的信号中提取交流分量; 以及用于接收来自第一和第二部分的两个信号的第三部分,并且在电平上比较这两个信号以产生振铃器停止信号,如果它们之间的电平差变得大于设定点值,并且因此传统的低通 过滤器可以去除。

    Time-division multiplexer
    7.
    发明授权
    Time-division multiplexer 失效
    时分复用器

    公开(公告)号:US06781985B1

    公开(公告)日:2004-08-24

    申请号:US09624666

    申请日:2000-07-25

    IPC分类号: H04L1250

    摘要: Disclosed is a time-division multiplexer for demultiplexing, into individual time slots, time-division multiplexed data in a receive direction received from a network via a trunk unit, and sending the data to a prescribed tributary unit, and for multiplexing, to a prescribed time slot, data in a transmit direction which enters from tributary units and sending the data to the network via the trunk unit. The time-division multiplexer has a trunk bus to which a trunk unit is connected and a tributary bus to which tributary units are connected, and a time-slot interchange unit provided between these buses, wherein interchange of cross-connected time slots on the trunk side and time slots on the tributary side is performed dynamically by the time-slot interchange unit. Further, a common channel signaling controller is provided between the bus lines, wherein the common channel signaling controller performs control for dynamic assignment of time slots and sends a time-slot exchange request to the time-slot interchange unit.

    摘要翻译: 公开了一种时分多路复用器,用于将经由中继单元从网络接收的接收方向上的时分复用数据分离成各个时隙,并将数据发送到规定的支路单元,并将其复用到规定的 时隙,从支路单元进入发送方向的数据,并通过中继线单元将数据发送到网络。 时分多路复用器具有连接中继线单元的中继线总线和连接有支路单元的支路总线,以及在这些总线之间设置的时隙交换单元,其中交叉连接的时隙在主干 辅助侧的侧面和时隙由时隙交换单元动态地执行。 此外,在总线之间提供公共信道信令控制器,其中公共信道信令控制器执行时隙的动态分配控制,并向时隙交换单元发送时隙交换请求。

    Water-resistant long-life rolling bearing
    8.
    发明授权
    Water-resistant long-life rolling bearing 失效
    耐水长寿命滚动轴承

    公开(公告)号:US06165289A

    公开(公告)日:2000-12-26

    申请号:US835746

    申请日:1997-04-10

    IPC分类号: C22C38/16 F16C33/30 F16C33/62

    摘要: A water-resistant and long-life rolling bearing used in an environment involving water's seeping in the lubricant thereof, wherein at least one of the inner race, the outer race, and the rolling member is formed of alloy steel containing 0.05 to 0.60% by weight of Cu, 0.10 to 1.10% by weight of C, and 0 to 0.2% by weight of Nb or V. The alloy steel has functions of reducing hydrogen evolution on the surface thereof and of forming a film hardly permeable to hydrogen thereby to retard occurrence of flaking due to hydrogen-induced brittleness.

    摘要翻译: 一种用于在其润滑剂中渗水的环境中使用的耐水长寿命滚动轴承,其中内圈,外圈和滚动构件中的至少一个由合金钢形成,所述合金钢含有0.05-0.60% Cu的重量,0.10〜1.10重量%的C和0〜0.2重量%的Nb或V.该合金钢具有降低其表面的析氢和形成几乎不渗透氢的膜的功能,从而延迟 由于氢诱发的脆性而产生剥落。

    Rolling bearing
    9.
    发明授权
    Rolling bearing 失效
    滚动轴承

    公开(公告)号:US5997661A

    公开(公告)日:1999-12-07

    申请号:US903723

    申请日:1997-07-31

    摘要: A rotating shaft 4 is attached to an inner race 1, and an outer race 2 is fixed to a housing 5 so that the bearing is operated by the rotation of the rotating shaft 4. In this case, the inner race 1 is made to be the race on the rotating side, and the outer race 2 is made to be the race on the non-rotating side. The raw material composing the inner race 1, outer race 2 and rollers 3 is manufactured from alloy steel containing 4.5 weight % or less of Ni, and 0.5 weight % or less of Cu, and the average value of the Cu equivalent of the rollers 3 and the inner race 1 is set at a value higher than the Cu equivalent of the outer race 2. Thus, even in humid environments where water infiltrates into the lubricant, it is possible to make the rolling bearing have the same durable life as with rolling bearings which are used in normal environments. Accordingly, it is possible to provide rolling bearings endowed with superior durable life from the electrochemical viewpoint even when water infiltrates into the bearing lubricant.

    摘要翻译: 旋转轴4安装在内座圈1上,外座圈2固定在壳体5上,使得轴承通过旋转轴4的旋转而动作。在这种情况下,内圈1成为 旋转侧的座圈和外圈2成为非旋转侧的座圈。 构成内圈1,外圈2和辊3的原料由含有4.5重量%以下的Ni和0.5重量%以下的Cu的合金钢制成,辊3的Cu当量的平均值 并且内圈1被设定为高于外圈2的Cu当量的值。因此,即使在水浸入润滑剂的潮湿环境中,也可以使滚动轴承具有与滚动相同的耐用寿命 在正常环境中使用的轴承。 因此,即使在水渗透到轴承润滑剂中的情况下,也可以提供从电化学观点来看具有优异的耐用寿命的滚动轴承。

    Transmission apparatus for relaying different types of trunk signals
    10.
    发明授权
    Transmission apparatus for relaying different types of trunk signals 失效
    用于中继不同类型的中继线信号的传输装置

    公开(公告)号:US5875244A

    公开(公告)日:1999-02-23

    申请号:US674852

    申请日:1996-07-03

    申请人: Takashi Nagato

    发明人: Takashi Nagato

    摘要: A transmission apparatus for relaying different types of trunk signals, including a central processing unit including a reception counter processor which is inserted between a pair of exchanges and enables direct relay of exchange trunk signals (Sxt) and analog trunk signals (Sem) of a pulse ear and mouth (E&M) mode on a radio transmission line by counting the pulse width of the signals (Sem) and determining their type, a transmission counter processor which transmits the pulse E&M signals until the count of the pulse width inherent to the signals Sem corresponding to the signals Sxt is finished, and a logical operation unit which generates the corresponding signals Sxt based on the result of determination of the reception counter processor and drives the transmission counter processor based on the input signals Sxt, whereby it is possible to give an existing digital transmission apparatus handling E&M signals a function corresponding to a conventional higher rank exchange.

    摘要翻译: 一种用于中继不同类型的中继线信号的发送装置,包括中央处理单元,该中央处理单元包括插入在一对交换机之间的接收计数器处理器,并使能直接中继交换干线信号(Sxt)和脉冲的模拟中继线信号(Sem) 通过对信号(Sem)的脉冲宽度进行计数并确定其类型,在无线电传输线上进行耳朵和口(E&M)模式,发送计数器处理器,发送脉冲E&M信号,直到信号Sem固有的脉冲宽度的计数 对应于信号Sxt的逻辑运算单元,以及基于接收计数器处理器的确定结果生成相应信号Sxt的逻辑运算单元,并根据输入信号Sxt驱动发送计数器处理器,由此可以给出 处理E&M的现有数字传输设备发送对应于传统的更高等级交换的功能。