| 摘要 |
Apparatus for storing a periodic signal and for recycling complete cycles of such stored periodic signal. Samples of a periodic signal are stored in a memory at a time commencing at the start of a cycle of the periodic signal. A first control signal is produced at the start of each cycle of the periodic signal. A second control signal is produced when a predetermined portion of the storage means is full. In response to the second control signal and one of the first control signals produced after the second control signal, a signal is produced indicating the portion of the memory having samples of complete cycles of the periodic signal stored therein, such indicating signal being related to the amount of samples stored in the predetermined portion of the memory plus the amount of samples stored in such memory between the time of the second control signal and the time of the one of the first control signals produced after the second control signal. The samples in the portion of the memory having complete cycles stored therein as indicated by the indicating signal, are then recycled through the memory.
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