| 摘要 |
PURPOSE:To provide the reception reproduction system whose required circuit scale is reduced in which four channel (L, R, C, S) independent voice data are received, converted into voice data L', R' suitable for two channel stereo signals for general house and outputted. CONSTITUTION:Data L, R, C among received L, R, C, S voice data are subject to time division multiplex by a multiplexer 102 and inputted to one input of an adder 36. After an output of the adder 36 is processed by a coefficient arithmetic operation processing means 101, the result is fed back to a multiplexer 35, in which the data are subject to time division multiplex with respect to S channel voice data and the resulting output is fed to other input of the adder 36. Voice data L', R' are extracted from an output of the coefficient arithmetic operation processing means 101 by using latches 38-40. Since the adder 36 and the coefficient arithmetic operation processing means 101 are used in common for the 4 channel voice data, the circuit scale is reduced. |
