| 摘要 |
PROBLEM TO BE SOLVED: To provide a sampling the conversion device provided with the radio channel reception processor of a base station on PHS(second generation cordless telephone) with a small circuit scale. SOLUTION: Sound data Di are written into different memories 11-14 for respective slots in accordance with a write control signal Wc generated at a prescribed period based on a timing signal. Sound data are simultaneously read from all the memories 11-14 in accordance with the write control signal Rc generated at the period shorter than that of the write control signal Wc based on the timing signal. Respective pieces of sound data are stored in D flip flops 21-24 and they are held until the next read control signal Rc is transmitted. When the write control signal Wc is overlapped with the read control signal (c), the read control signal Rc is preferentially outputted. Although the write control signal Wc is delayed and outputted, the timing of the output is executed before the next write control signal W is generated. |
