| 摘要 |
PROBLEM TO BE SOLVED: To provide a small and simplified data processing circuit by using a digital circuit to select left right sound data without the use of an analog circuit. SOLUTION: The proposed, circuit consists of a counter 1 for counting with a certain period, a decoder 2 that decodes the output of the counter 1, a selection means 3 that selects sound data stored under the control of a sound reproduction mode signal from received sound data in a plurality of bits, and a sound data storage means 4 that stored the selected sound data under the control of the output of the decoder 2. The sound reproduction mode signal is controlled to select a bit number of left/right sound data stored in the sound data storage means 4 and the left/right sound data, the left sound data or the right sound data, and the left/right sound data, the left sound data or the right sound data are outputted. Thus, the way of sound reproduction is changed with a small and simplified circuit by only having to change how to store data while other circuits are made in common. |
