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    • 3. 发明申请
    • COMMON CHANNEL IDENTIFYING SYSTEM
    • 通用通道识别系统
    • WO1996018177A1
    • 1996-06-13
    • PCT/GB1994002674
    • 1994-12-06
    • ROBERTS-CARLSON, AlanROBERTS, Keith, Frederick
    • G08B25/10
    • G08B25/10
    • The described invention enables communication between nodes on a common channel signalling system without erroneous identification of one device for another. The transmitting device sends an individual code which is learnt by the received equipment and stored in a non-volatile RAM. This sequence is only necessary on initialisation. Subsequent communications use the code known to both devices to distinguish the source of the transmission from another signal similar of structure but different code. Many devices (receivers or transmitters) can use the same channel without mis-operation of any of the devices. The advantage of this system over the traditional method of transmitting one of several determined codes is that the likelihood of coincident settings is reduced to a negligible level. Additionally the end user of the equipment is not required to set up complex codes or work on small electrical switches, which could present problems for the elderly and infirm. The codes used are secret to the systems using them thus avoiding the necessity of remembering code numbers or the security risk of writing them down. It is a simple matter to change the code. The teach/learn system can be re-activated by a couple of switches, thus setting new codes into the system easily.
    • 所描述的本发明能够在公共信道信令系统上的节点之间进行通信,而不会对另一个设备的错误识别。 发送装置发送由接收到的设备学习并存储在非易失性RAM中的单独代码。 该序列仅在初始化时才需要。 随后的通信使用两个设备已知的代码来区分传输源与结构类似但不同码的另一个信号。 许多设备(接收器或发射器)可以使用相同的通道,而不会对任何设备造成误操作。 该系统相对于传输几种确定代码之一的传统方法的优点在于将重合设置的可能性降低到可忽略的水平。 此外,设备的最终用户不需要设置复杂的代码或在小型电气开关上工作,这可能会给老年人和体弱者带来问题。 使用的代码对于使用它们的系统是秘密的,因此避免了记住代码号或写入它们的安全风险的必要性。 更改代码是一件很简单的事情。 教学/学习系统可以通过几个开关重新激活,从而将新的代码轻松设置到系统中。