초록 ▼

In an error correcting system, an error correcting unit stores a subframe data sequentially and circularly in first to third subframe memories. The subframe data is supplied continuously and is subjected to a first row direction error detecting and correcting process. The error correcting unit perfo

In an error correcting system, an error correcting unit stores a subframe data sequentially and circularly in first to third subframe memories. The subframe data is supplied continuously and is subjected to a first row direction error detecting and correcting process. The error correcting unit performs a column direction error detecting and correcting process to first and second subframe data and then performs a second row direction error detecting and correcting process to a part of the first subframe data, while the first row direction error detecting and correcting process is performed to a third subframe data to store in the third subframe memory. Also, the error correcting unit performs the second row direction error detecting and correcting process to a remaining part of the first subframe data and the second subframe data, while the first row direction error detecting and correcting process is performed to a fourth subframe data to store in the first subframe memory from a head location.

대표청구항 ▼

[ What is claimed is:] [10.] A method of correcting a data error in an error correcting system, wherein a subframe data is continuously supplied in correspondence to a half of each of frames, a frame data for one frame is formed of bit data of N rows and N columns and said subframe data is formed of

[ What is claimed is:] [10.] A method of correcting a data error in an error correcting system, wherein a subframe data is continuously supplied in correspondence to a half of each of frames, a frame data for one frame is formed of bit data of N rows and N columns and said subframe data is formed of bit data of N/2 rows and N columns and is composed of a data section and an error correction code section for said data section, comprising the steps of:(a) storing a first subframe data, which is subjected to a first row direction error correcting process, in a first one selected sequentially and circularly from among three subframe memories;(b) storing a second subframe data, which is subjected to said first row direction error detecting and correcting process, in a second one selected sequentially and circularly from among said three subframe memories, after said step (a);(c) performing a column direction error detecting and correcting process to said first and second subframe data respectively stored in said first and second subframe memories as first and second halves of a frame data for a first frame, while performing said first row direction error detecting and correcting process to a part of a third subframe data as a first half of the frame data for a second frame to store in a third one selected sequentially and circularly from among said three subframe memories;(d) performing a second row direction error detecting and correcting process to a part of said first subframe data stored in said first subframe memory, while performing said first row direction error detecting and correcting process to a remaining part of said third subframe data to store in said third subframe memory; and(e) performing said second row direction error detecting and correcting process to a remaining part of said first subframe data and said second subframe data, while performing said first row direction error detecting and correcting process to a fourth subframe data as a second half of the frame data for the second frame to store in said first subframe memory from a head location.