Title:
書込装置及び書込方法
Document Type and Number:
Japanese Patent JP4226079
Kind Code:
B2
Abstract:
Reading partly written record carriers by means of a reading device which positions the read head on the basis of written marks presents problems when an information block behind a non-written area must be read. This Application describes a writing device and a method of writing information blocks on a record carrier of a rewritable type such as a CD-RW or a DVD-RAM. First, record carrier areas (21, 22, 23) which are in use are detected for writing information blocks, for example, via the corresponding writing instructions. Subsequently, it is detected whether boundary areas (31, 32, 33) adjoining the areas which are in use are unwritten. In that case, the boundary areas are initialized by writing them with dummy information, preferably with dummy information blocks comprising address information in the conventional manner. Furthermore, the Application discloses a record carrier provided with status information which is indicative of the non-written state of areas. A reading device which is provided with search means for searching written areas is also described.
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Inventors:
Frank Franz Herman Ulrich
Application Number:
JP52338098A
Publication Date:
February 18, 2009
Filing Date:
October 20, 1997
Export Citation:
Assignee:
Koninklijke Philips Electronics N.V.
International Classes:
G11B7/0045; G11B7/00; G11B7/004; G11B7/007; G11B7/30; G11B20/12; G11B27/034; G11B27/10; G11B27/11; G11B27/19; G11B27/22; G11B27/30; G11B27/32; G11B27/36; G11B27/036
Domestic Patent References:
| JP9265630A | ||||
| JP10112166A |
Attorney, Agent or Firm:
Susumu Tsugaru
Akihiko Miyazaki
Fueda Shusen
Akihiko Miyazaki
Fueda Shusen