Patent ID: 6552825
Filing Date: 2003-04-22
Classification: H04N

Abstract:
In data communication apparatus including communication means for transmitting and receiving video data and audio data, said video data being derived from documents, a memory for storing at least video data and audio data received by said communication means, memory control means for executing management of utilization of said memory and for controlling data write and read operations of said memory, and data display means;the improvement comprising display control means for controlling said data display means to display first memory capacity information representing an amount of capacity available in said memory for storing video data and second memory capacity information representing an amount of capacity available in said memory for storing audio data, said display control means comprising means for expressing said first memory capacity information as a number of first data units, each of said first data units consisting of an amount of data corresponding to one standard document page, and for expressing said second memory capacity information as a number of second data units, each of said second data units consisting of an amount of data corresponding to one fixed-duration telephone message, and means for controlling said display means to display said number of first data units and number of second data units, wherein a memory space of said memory is divided into a video region which is reserved for storing video data and an audio region which is reserved for storing audio data, with a boundary between said video region and audio region being defined by a boundary address, and wherein said first memory capacity information is an amount of capacity of said video region and said second memory capacity information is an amount of capacity of said audio region, further comprising means for establishing a boundary address setting mode of operation wherein one of a plurality of respectively different values of said boundary address can be selectively established by a user, and wherein said display means is controlled to display during said boundary address setting mode, for each of said plurality of boundary address values, a corresponding amount of capacity of said video region, expressed as a number of said first data units corresponding to document pages, and a corresponding amount of capacity of said audio region, expressed as a number of said second data units corresponding to telephone messages, said display means being further controlled to indicate one of said boundary address values which is currently selected.