公开(公告)号：US20160275981A1

公开(公告)日：2016-09-22

申请号：US15166112

申请日：2016-05-26

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Isao KOBAYASHI ,  Kohei NAKATA ,  Yasumori HINO

IPC: G11B7/0045 ,  G11B20/10

CPC classification number: G11B7/00456 ,  G11B7/0045 ,  G11B7/0062 ,  G11B7/1263 ,  G11B7/1267 ,  G11B20/10009 ,  G11B20/10037 ,  G11B20/10194

Abstract: An information recording and reproducing apparatus including: a reproducing unit which generates a digital signal from an analog signal; a recording compensation unit which generates an expectation signal from the digital signal, detects a signal difference between the digital signal and the expectation signal, and adjusts a recording condition for recording the information; and a recording unit configured to record the information based on the recording condition. First recording compensation is performed for adjusting the recording condition using first recording where lengths of a preceding space and a succeeding space of a first recording mark and lengths of a preceding space and a succeeding space of a second recording mark are not in intersymbol interference; and second recording compensation is performed for adjusting the recording condition for the first recording mark using second recording data for changing a length of the second recording mark.

Abstract translation: 一种信息记录和再现装置，包括：再现单元，其从模拟信号产生数字信号; 从数字信号产生预期信号的记录补偿单元检测数字信号与期望信号之间的信号差，并调整用于记录信息的记录条件; 以及记录单元，被配置为基于记录条件记录信息。 执行第一记录补偿，以使用第一记录来调整记录条件，其中第一记录标记的前一个空间和后续空间的长度以及前一个空间的长度和第二个记录标记的后续空间的长度不在符号间干扰; 并且执行第二记录补偿，以使用用于改变第二记录标记的长度的第二记录数据来调整用于第一记录标记的记录条件。