Electrical audio signal processing systems and devices – Monitoring/measuring of audio devices – Loudspeaker operation
Patent
1987-04-22
1990-05-08
Harkcom, Gary V.
Electrical audio signal processing systems and devices
Monitoring/measuring of audio devices
Loudspeaker operation
G10L 502
Patent
active
049245198
ABSTRACT:
Message storage capacity is provided on memory modules, the number of modules being expandable to increase the capacity of the system. Each module has digital memory which is organized with a plurality of message units, each message unit including a number of successive memory bytes for storing respective messages. A desired message is accessed by stepping through the message units to the desired location having the start of the desired meassage, skipping the intervening bytes. The message is then read out at the system clock rate. The memory of each module is preferably addressed by a corresponding counter which has a lower order control input for counting up at one memory byte per count, and a higher order control input for counting up at an accelerated rate of one message unit per count. A microprocessor controller causes each of the memory modules to access the location of the desired message through a fast access line, and then causes the desired message to be read out from its particular module while readout from the other modules is inhibited.
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Harkcom Gary V.
Merecki John A.
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