초록 ▼

A device consists of: a first unit which divides voice and image data into blocks each consisting of a predetermined number of data, and executes a method of selecting one of plural error correction encoding systems and conducting encoding on an arbitrary number of data in one block; a second unit w

A device consists of: a first unit which divides voice and image data into blocks each consisting of a predetermined number of data, and executes a method of selecting one of plural error correction encoding systems and conducting encoding on an arbitrary number of data in one block; a second unit which executes a method of measuring an error state of a communication channel; and a third unit which executes a method of determining data which are to be subjected to encoding conducted in the first unit, and an error correction encoding system. When the state of the communication channel is inferior, only data of high importance can be protected. When the state is superior, a wide range of data including those of low importance can be protected.

대표청구항 ▼

[ What is claimed is:] [1.] An error correcting device comprising:a first unit which (1) selects one of a plurality of error correction encoding systems on a basis of control information, and (2) conducts encoding using the selected error correction encoding system on of data, said data included in

[ What is claimed is:] [1.] An error correcting device comprising:a first unit which (1) selects one of a plurality of error correction encoding systems on a basis of control information, and (2) conducts encoding using the selected error correction encoding system on of data, said data included in one of a plurality of blocks into which voice and/or image data are divided, each one of the plurality of blocks having a predetermined number of data, each of the error correction encoding systems producing encoded data including a same number of redundancy check bits;a second unit which measures an error state of a communication channel; anda third unit which (1) determines data which are to be subjected to encoding in said first unit, and (2) an error correction encoding system,said second unit supplying information of the measured error state to said third unit,said third unit (1) determining (a) data which are to be subjected to encoding, and (b) the error correction encoding system, using the error state information, and (2) supplying the determination to said first unit as said control information.