Digital sound source device and external memory cartridge...

Details Digital sound source device and external memory cartridge... Digital sound source device and external memory cartridge...

G - Physics

11

C

G11C 27/00 (2006.01) G10K 15/04 (2006.01) G11C 5/00 (2006.01) G11C 7/16 (2006.01)

Patent

CA 2049300

ABSTRACT A digital sound source apparatus includes a semiconductor memory connected to a central processing unit. The memory has a quantized data storage area and aprogram data storage area. A quantized data train and a stop code are stored in a series of addresses in the quantized data storage area, a start address is set in a certain address in the program data storage area. When the start address is readfrom the program data storage area, the quantized data are sequentially read from the quantized data storage area and axe sequentially loaded into a data register. When the stop code is read from the quantized data storage area, loading of the data into the data register is inhibited by a read/write control circuit. The quantized data loaded into the data register are converted into an analog sound signal by a D/Aconversion circuit.

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