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US 6,687,198 B2Granted
Information access device, information access method, and information storage medium access system
AssigneeFujitsu Limited
InventorMasashi Yamawaki
Life of this patent
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AssigneeFujitsu Limited
InventorMasashi Yamawaki
Estimating the term…
In an information access device, an information access method and an information storage medium access system which are suited to quickly and reliably detect a deviation in frame management associated with erroneous detection of a synchronous mark and to perform an operation of redetecting a synchronous mark, an Even synchronous mark erroneous detector outputs a count-up signal if a synchronous mark LSY from an LPP pattern comparing portion is “111” when an Even/Odd identification signal from a frame counter assumes 1. An Odd synchronous mark erroneous detector outputs a count-up signal if the synchronous mark LSY is “110” when the Even/Odd identification signal assumes 0. An erroneous detection counter counts the number of the outputted count-up signals, which is compared with a count value set by a redetection level portion in a comparator. Then a redetection instruction signal for redetecting an LPP access synchronous mark is outputted.
An information access device for reading control information from an information storage device, the control information recorded on a plurality of data frames including at least a first data frame and a second data frame, the information access device comprising:
An information access device for reading control information from an information storage device, the control information recorded on a plurality of data frames including at least a first data frame in a first region and a second data frame in a second region, the first data frame and the second date frame having a control information and data, the information access device comprising:
An information access device for reading control information from an information storage device, the control information recorded on a plurality of data frames including at least a first data frame in a first region and a second data frame in a second region, the first data frame and the second data frame having a control information and data, the information access device comprising:
An information access device for reading control information from an information storage device, the control information recorded on a plurality of data frames including at least a first data frame in a first region and a second data frame in a second region, the first data frame and the second data frame having a control information and data, the information access device comprising:
An information access method for reading control information from an information storage media, comprising:
An information access method for reading data including a plurality of sectors having even frames and odd frames which are attributed to one of an even region and odd region, comprising:
A data access device for accessing data including a plurality of sectors which have even frames and odd frames, the data access device comprising:
An information access method for reading control information from an information storage device, the control information recorded on a plurality of data frames including at least a first data frame and a second data frame, the information access method comprising:
An information access method for reading control information from an information storage device, the control information recorded on a plurality of data frames including at least a first data frame in a first region and a second data frame in a second region, the first data frame and the second data frame having a control information and data, the information access method comprising:
An information access method for reading control information from an information storage device, the control information recorded on a plurality of data frames including at least a first data frame in a first region and a second data frame in a second region, the first data frame and the second data frame having a control information and data, the information access method comprising:
An information access method for reading control information from an information storage device, the control information recorded on a plurality of data frames including at least a first data frame in a first region and a second data frame in a second region, the first data frame and the second data frame having a control information and data, the information access method comprising:
Dependencies are inferred from the claim text.