| 摘要 |
A digital information storage unit which has a particular but not necessarily an exclusive application in an electronic telecommunication exchange system includes at least two stores arranged for parallel and substantially independent operation and a control unit for controlling the operation of the stores. When a digital information signal is applied to the storage unit input it is channelled to one of the stores, the other store is connected to the input and said one store is inhibited for a period determined by the signal storage period. When both stores are occupied the input is inhibited until one of the stores is cleared, the cleared store being connected to the input. During the storage period the information is processed through three stages of control and the store whose contents is to be processed is selected in dependence upon the nature of the stored information. Before each stage of control the progress of the information can be inhibited in dependence on the nature and time of arrival of the information. |
