公开(公告)号：US4726056A

公开(公告)日：1988-02-16

申请号：US878421

申请日：1986-06-25

申请人： Chungming An ,  Martin Erk ,  Michael A. Kefauver ,  Richard A. Williams

发明人： Chungming An ,  Martin Erk ,  Michael A. Kefauver ,  Richard A. Williams

IPC分类号： H04M15/00 ,  H04M15/04 ,  H04M15/06 ,  H04M15/28 ,  H04M17/02

CPC分类号： H04M15/07 ,  H04M15/00 ,  H04M15/04 ,  H04M17/02 ,  H04M2215/64

摘要： A method and apparatus for calculating charges for telephone calls in real time. The operator assistance switch connected to an originating telephone customer recognizes that a call is one which requires an immediate calculation of charges. Such calls include coin calls, calls from certain types of hotel/motel private branch exchanges, calls from customers who wish to be notified as to the amount of the charge for the call they are about to place, and calls from customers requesting a rate for a call to a particular destination. The operator assistance switch generates a message including the originating and terminating directory numbers and the type of the call. The message is sent to a shared rating system which uses the parameters sent in the message to calculate charges. The shared rating system then sends a message, including the calculated charges, back to the operator assistance switch. The customer, or the hotel/motel private branch exchange, is then notified of the amount of the charges. Advantageously, such an arrangement permits changes in the data used for calculating charges to be implemented easily and quickly because of the small number of shared rating systems whose tubular data must be updated. Advantageously, changes in charging algorithms can be made independently of other program changes in operator assistance switches and can be made in one place for a number of different types of operator assistance switches.

摘要翻译： 一种用于实时计算电话费用的方法和装置。 连接到始发电话客户的操作员辅助开关识别出呼叫是需要立即计算费用的呼叫。 这种电话包括硬币通话，来自某些类型的酒店/汽车旅馆私人分行交换机的呼叫，希望被通知的客户的呼叫，他们将要发出的呼叫的费用的数量，以及来自客户的呼叫请求费率 呼叫到特定目的地。 操作员辅助开关产生包括起始和终止电话号码以及呼叫类型的消息。 该消息被发送到共享评级系统，其使用消息中发送的参数来计算费用。 共享评级系统然后将包括计算费用的消息发送回操作员辅助开关。 然后，客户或酒店/汽车旅馆私人交易所通知收费金额。 有利地，这种安排允许用于计算费用的数据的改变由于管理数据必须被更新的共享评级系统的数量少而容易且快速地实现。 有利地，可以独立于操作者辅助开关中的其他程序改变来进行计费算法的改变，并且可以在多个不同类型的操作者辅助开关的一个位置进行。

公开(公告)号：US4639385A

公开(公告)日：1987-01-27

申请号：US781544

申请日：1985-09-30

申请人： William L. Jolitz ,  Richard A. Williams

发明人： William L. Jolitz ,  Richard A. Williams

IPC分类号： C08K3/02 ,  H01B3/40 ,  H05K9/00 ,  B05D3/02

CPC分类号： H01B3/40 ,  C08K3/02 ,  Y10T428/31511 ,  Y10T428/31529

摘要： A conformal coating protects electrical components used in a high voltage high vacuum evironment from flashovers caused by patch charging. The coating comprises a semiconductor powder, preferably elemental boron, having a low atomic number and uniformly dispersed throughout an organic binder such an an epoxy. The coating's surface resistivity is made to be high enough so that the coating acts as an electrical insulator. On the other hand, the coating's surface resistivity is sufficiently low that any patch charge is siphoned off to the nearest conductor. The surface resistivity is regulated by the proportion of semiconductor present. The coating's secondary electron emission coefficient is 1 or just under 1. The coating has the properties of adhesion, stability, elasticity, provision of mechanical support, and resistance to solvents and heat. An example is given in which the epoxy comprises resin, fine particles of elemental boron, and a polyamide hardener. The epoxy is mixed with solvents and sprayed or brushed onto the electrical components being protected, in this case a satellite TWTA EPC.

摘要翻译： 保形涂层保护高压高真空环境中使用的电气部件免受由贴片充电引起的闪络。 该涂层包含半导体粉末，优选元素硼，其原子序数低，并且均匀分散在整个有机粘合剂中，例如环氧树脂。 使涂层的表面电阻率足够高，使得涂层充当电绝缘体。 另一方面，涂层的表面电阻率足够低，使得任何贴片电荷被虹吸到最接近的导体。 表面电阻率由存在半导体的比例来调节。 涂层的二次电子发射系数为1或刚刚低于1.涂层具有粘合性，稳定性，弹性，提供机械支撑，耐溶剂和耐热性能。 给出其中环氧树脂包括树脂，元素硼的细颗粒和聚酰胺硬化剂的实例。 环氧树脂与溶剂混合并喷涂或刷涂到被保护的电气元件上，在这种情况下是卫星TWTA EPC。