Data storage apparatus, data reading apparatus and data transmission apparatus

A data reading apparatus comprising:

• input means for receiving data at a data transfer rate and for supplying the received data to a plurality of data storing means, in which the number of data storing means corresponds to a ratio between an access speed of said data storing means and said data transfer rate;
• a plurality of address holding means respectively coupled to the plurality of data storing means for receiving address information indicative of storage address of each data shifted at every predetermined period and for holding the address information during a predetermined address holding period from a time point at which address information is supplied;
• and
• read control means for read-activating a data storing means corresponding to an address holding means to which address information is supplied after a predetermined delay time has passed since address information was supplied, wherein a read-activation period relative to said data storing means is included in an address holding period at said address holding means corresponding to said data storing means, and said read-activated data storing means outputs data from a storage position shown by address information held in a corresponding address holding means.

A data transmission apparatus comprising:

• a plurality of data holding means each respectively coupled to one of a plurality of data storing means for sequentially receiving individual data which is supplied thereto at a data transfer rate which is to be stored in each said data storing means at every predetermined period and for holding supplied data during said predetermined period, in which the number of data storing means corresponds to a ratio between an access speed of said data storing means and said data transfer rate and in which the number of data holding means is equal to the number of data storing means;
• a plurality of address holding means respectively coupled to said plurality of data storing means, receiving address information indicative of storage address of each data shifted at every said predetermined period and holding supplied address information during a predetermined address holding period from a time point at which address information is supplied;
• write control means for write-activating said plurality of data storing means at its data storing means to which data stored in said data holding means is to be stored, said write-activated data storing means stores data held in a corresponding data holding means at a storage position shown by address information held in a corresponding address holding means;
• and
• read control means for read-activating a data storing means corresponding to an address holding means supplied with address information after a predetermined delay time since a time point at which address information was supplied, wherein a data holding period in said data holding means is in included in an address holding period in an address holding means corresponding to said data holding means, a read-activation period relative to said data storing means is included in an address holding period corresponding to said data storing means, and said read-activated data storing means outputs data from a storage position shown by address information held in a corresponding address holding means.