Patent ID: 9112622
Filing Date: 2015-08-18
Classification: H04H,H04R

Abstract:
1. An integrated circuit for processing digital audio signals every sampling period of a plurality of sampling periods, comprising: a plurality of blocks including: an input block adapted to supply audio signals inputted from outside; an output block adapted to output supplied audio signals supplied thereto to outside; and a signal processing block configured to perform signal processing on audio signals supplied thereto to thereby supply the processed audio signal; a transferring section adapted to transfer audio signals between the blocks along a plurality of transfer paths, each transfer path extending from one of said blocks as a sender of an audio signal to one of said blocks as a receiver of the audio signal; and a plurality of communication memories corresponding to said plurality of transfer paths in one-to-one correspondence, each of said communication memories including a front-side memory region and a back-side memory region, and roles of the front-side memory region and the back-side memory region alternate with each other within every sampling period of the plurality of sampling periods, wherein each of said input block and said signal processor block operates as a sender and each of said output block and said signal processor block operates as a receiver, and wherein each communication memory is dedicated to its corresponding transfer path, a front-side memory region of the communication memory corresponding to the transfer path is dedicated for a sender of the transfer path to write audio data, and a back-side memory region of the communication memory corresponding to the transfer path is dedicated for a receiver of the transfer path to read the audio data, such that the one block as the sender of the transfer path writes audio signals into the front-side memory of the communication memory corresponding to the transfer path without being affected by another block of the plurality of blocks, and the one block as the receiver of the transfer path reads audio signals from the back-side memory of the communication memory of the transfer path without being affected by another block of the plurality of blocks.