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Circuit arrangement for telecommunication exchanges, particularly telephone exchanges, comprising scanning points which are cyclically controlled by information interrogation devices
Circuit arrangement for telecommunication exchanges, particularly telephone exchanges, comprising scanning points which are cyclically controlled by information interrogation devices
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机译:用于电信交换局,特别是电话交换局的电路装置,包括由信息询问装置周期性地控制的扫描点
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摘要
An interrogating device cyclically calling in an information from various inquiry locations controls the various inquiry locations differing in frequency to which end addresses of the inquiry locations are stored a different number of times in an interrogation control memory. When an interrogating device has not received any information upon interrogation of an inquiry location, then this inquiry location is skipped the next time. For this purpose, a note bit is stored in the interrogation control memory at the address which was just interrogated. When the same memory location in the interrogation memory is reached again after an interrogation cycle, the note bit effects that the address is not read and that the inquiry location is instead skipped once; the note bit is thereby erased in turn.
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