Patent ID: 8560725
Filing Date: 2013-10-15
Classification: H04L

Abstract:
1. An audio signal processor comprising two sets of receivers and transmitters, each set performing communication in a single direction, and the audio signal processor adapted to be incorporated into a network system comprising a plurality of other audio signal processors connected in series forming a ring transmission route, the ring transmission route adapted to transport an audio transport frame, said audio transport frame including a frame data region and an ID region, the frame data region for storing a frame for asynchronous communication, and the ID region for storing an ID of a device which wrote data into the frame data region, the frame data region being disposed further from a beginning of the audio transport frame as compared to the ID region, the audio signal processor being adapted: to receive the audio transport frame and to transmit the received audio transport frame to a next processor; to write, when a free token indicating that the frame data region is not in use is written in the ID region of the received audio transport frame, and when asynchronous data to be asynchronous transmitted exists in said audio signal processor, an ID of the audio signal processor itself into the ID region of the audio transport frame to be transmitted, and to start transmission of the asynchronous data using the frame for asynchronous communication; to retrieve, when an ID of a processor other than said audio signal processor is written in the ID region of the received audio transport frame, data in the frame data region of the received audio transport frame; and to write, when the ID of the audio signal processor itself is written in the ID region of the received audio transport frame, and when asynchronous data to be asynchronously transmitted does not exist in said audio signal processor, the free token into the ID region of the audio transport frame to be transmitted.