Title:
DATA REPRODUCING DEVICE
Document Type and Number:
Japanese Patent JP3646336
Kind Code:
B2
Abstract:
PURPOSE: To prevent outputting erroneous data.
CONSTITUTION: An optical disk 1 is reproduced, and a signal DS is supplied to a detecting section 4a, a delay section 9, and a detecting section 10 from an amplifier section 3. When the reference signal is detected from the signal DS in the detecting section 10, a window signal WD which is read-out timing and in which time variation is considered is outputted from a signal generating section 11. When a synchronizing signal is detected and the signal SD is outputted in the detecting section 4a in a period of the signal WD, the signal SD is selected by a selecting section 14 and supplied to a memory section 5, and a data signal of a signal DDS from the delay section 9 is written from the beginning. When a synchronizing signal is not detected, a signal ST from a signal generation section 13 outputted after finish of the signal WD is selected and supplied to the memory section 5, and a data signal of the signal DDS is written halfway. When a synchronizing signal is not detected, as data is written halfway, an error can be surely detected by a decoder section 6, and outputting erroneous data can be prevented.
Inventors:
Nobuhiro Chiba
Application Number:
JP3836895A
Publication Date:
May 11, 2005
Filing Date:
February 27, 1995
Export Citation:
Assignee:
ソニー株式会社
International Classes:
G11B20/14; G11B7/00; G11B7/005; G11B19/04; G11B19/247; G11B19/28; G11B20/18; (IPC1-7): G11B20/18; G11B7/00; G11B20/14
Domestic Patent References:
| JP1124158A | ||||
| JP6132950A | ||||
| JP7272415A |
Attorney, Agent or Firm:
Kunio Yamaguchi
Eiji Sasaki
Eiji Sasaki
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