Memory organization and output sequencer for a signal processor

Abstract From the Canadian patent

A specialized tone receiver is capable of detecting tones on many different digital signal channels simultanously. A single memory is used to buffer incoming digital signals Independent write and read sequencers write samples into and read samples from the buffer memory, respectively. The write sequencer writes all samples corresponding to a given sample time at essentially the same time while, the read sequencer reads out all of the samples corresponding to a given channel of interest in reverse sequential chronological order (i.e. in the opposite order from the order the samples were written) beginning with the most current sample. A priority structure controls access to the buffer …