Patent ID: 7590460
Filing Date: 2009-09-15
Classification: G10H,G11B

Abstract:
1. An audio signal processor comprising: a data path unit that applies at least one arithmetical operation to an audio signal for performing signal processing of the audio signal; a mode register that stores mode information specifying the signal processing to be performed by the data path unit; and a state machine unit that sequentially feeds control signals for enabling the data path unit to apply at least one arithmetical operation to the audio signal so as to perform the signal processing, which includes the at least one arithmetical operation and which is specified by the mode information stored in the mode register, wherein the state machine unit generates a control signal every time a clock pulse is supplied at a given period for enabling the data path unit to perform the signal processing specified by the mode information stored in the mode register, the data path unit provides the state machine unit with a status signal, which indicates a state of the arithmetical operation under execution, and the state machine unit determines on the basis of the provided status signal a content of the control signal which should be sent to the data path unit when a next clock pulse is supplied.