Patent ID: 7525991

Claim:
A communication terminal apparatus, comprising a plurality of layers hierarchically classified depending on different processing functions, said apparatus comprising: a processing unit belonging to a predetermined layer; a plurality of processing units belonging to a lower layer than said predetermined layer; a processing unit belonging to an upper layer than said predetermined layer; an operation control unit for controlling operation of said processing unit belonging to said predetermined layer, said operation control unit belonging to said predetermined layer; an operation control unit for controlling operation of said processing unit belonging to said lower layer, said operation control unit belonging to said lower layer; and an operation control unit for controlling operation of said processing unit belonging to said upper layer, said operation control unit belonging to said upper layer, wherein said processing unit belonging to said predetermined layer comprises a data distributor for distributing one supplied data and for outputting a plurality of data, wherein said processing unit belonging to said predetermined layer can selectively use said plurality of processing units belonging to said lower layer through control of said operation control unit belonging to said predetermined layer, wherein said operation control unit belonging to said lower layer notifies, to said operation control unit belonging to said predetermined layer, availability information indicating whether each of said plurality of processing units belonging to said lower layer is available or not, wherein said operation control unit belonging to said predetermined layer notifies said availability information to said operation control unit belonging to said upper layer, and said data distributor divides said one data supplied from said processing unit belonging to said upper layer through the control of said operation control unit belonging to said predetermined layer, and a plurality of data after dividing are selectively supplied to said plurality of processing units belonging to said lower layer.