Masayuki Hattori

TL;DR: In this paper, the authors developed a new error correction method (Picket: a combination of a long distance code (LDC) and a burst indicator subcode (BIS)), a new channel modulation scheme (17PP, or (1, 7) RLL parity preserve (PP)-prohibit repeated minimum transition runlength (RMTR) in full), and a new address format (zoned constant angular velocity (ZCAV) with headers and wobble, and practically constant linear density) for a digital video recording system (DVR) using a phase change disc

TL;DR: In this paper, a register train is provided in addition to a train of memory cells as many as a cut length which are arranged in correspondence to each state, and outputs of the registers at the front stages are inputted to those three selectors, respectively.

TL;DR: In this paper, error correction coding and decoding according to a serial concatenated modulation system are carried out under high code rate, where a coding apparatus 1 comprises three convolutional coders 10, 30, and 50 for carrying out convolution operation; two interleavers 20 and 40 for rearranging order of data input; and a multi-value mapping circuit 60 for mapping of a single point on the basis of a predetermined modulation system.

TL;DR: In this paper, a storage unit is provided which is capable of preventing the occurrence of readout errors even if two or more errors arise within a code, and storage unit checking method is offered which can improve the productivity.

TL;DR: In this paper, the clues originate in high protectivity clue words (BIS) that are interleaved among clue columns, and also in synchronizing columns constituted from synchronizing bit groups.