Patent US4849956A successfully refreshed from Google Patents.
US4849956A
Expired / Lapsed
US
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Information recording and reproducing apparatus
Assignee: Canon Inc
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Filing: 1986-10-01
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Granted: 1989-07-18
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Expires: 2006-10-01
Abstract
Abstract A relay recording area is used in an information recording and reproducing apparatus for storing recording information or recorded information if a defective track or sector is found in a recording medium during data recording or reproduction. An information recording apparatus includes: an information recording medium divided into a plurality of recording areas; a record unit for recording information on the recording medium; a memory for storing information to be recorded on a first recording area of the recording medium when the information cannot be recorded on the first recording area; and a controller for controlling the record unit to record the information stored in the memory on a second recording area different from the first recording area.
Inventors
- 👤 Takayuki Aizawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:10
CPC Classifications
G; G11; G11B; G11B20/00; G11B20/10; G11B20/18; G11B20/1883; G11B27/00; G11B27/36; G11B7/00; G11B7/004; G11B7/0045; G11B7/007; G11B7/00745; G11B2220/00; G11B2220/20
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
157 words
An information recording apparatus comprising: an information recording medium comprising a plurality of recording areas, wherein said recording areas including a plurality of information recording areas and an alternative recording area for recording information thereon when said information cannot be recorded on said plurality of information recording areas, recording means for recording information on said recording areas; detecting means for detecting whether or not an error exists in said information recorded on said recording area; control means for directing said information to be recorded on said alternative recording area when said detecting means detects an error; and memory means for storing said information to be recorded on said alternative recording area, wherein said control means controls said recording means such that after said recording means has recorded consecutive information on said information recording area, said control means reads out information stored in said memory means and directs said information to be recorded on said alternative recording area.
Claim 2
Dependent Claim
157 words
An information recording apparatus comprising: an information recording medium comprising a plurality of recording areas, wherein said recording areas including a plurality of information recording areas and an alternative recording area for recording information thereon when said information cannot be recorded on said plurality of information recording areas, recording means for recording information on said recording areas; detecting means for detecting whether or not an error exists in said information recorded on said recording area; control means for directing said information to be recorded on said alternative recording area when said detecting means detects an error; and memory means for storing said information to be recorded on said alternative recording area, wherein said control means controls said recording means such that after said recording means has recorded consecutive information on said information recording area, said control means reads out information stored in said memory means and directs said information to be recorded on said alternative recording area.
Claim 3
Dependent Claim
32 words
An information recording apparatus according to claim 1, further including second memory means for storing information indicating a position of said information recording area in which said detecting means detects an error.
Claim 4
Dependent Claim
56 words
An information recording apparatus according to claim 2, wherein said recording medium includes a management area for recording data thereon for managing information recorded in said recording medium, and said control means reads out position information stored in said second memory means to direct said recording means to record said position information into said management area.
Claim 5
Dependent Claim
37 words
An information recording apparatus according to claim 1, further comprising reading means for reading out information recorded in said recording area wherein said detecting means detects an error in response to an output of said reading means.
Claim 6
Dependent Claim
20 words
An information recording apparatus according to claim 1, wherein said recording medium includes a plurality of tracks as recording area.
Claim 7
Dependent Claim
19 words
An information recording apparatus according to claim 5, wherein said tracks include a plurality of sectors as recording areas.
Claim 8
Dependent Claim
28 words
An information recording apparatus according to claim 1, wherein said memory means is capable of storing a plurality of information to be recorded in said alternative recording area.
Claim 9
Dependent Claim
18 words
An information recording apparatus according to claim 1, wherein said recording means is movable on said recording medium.
Claim 10
Dependent Claim
171 words
An information reproducing apparatus comprising: an information recording medium comprising a plurality of recording areas, wherein said recording areas include a plurality of information recording areas, an alternative recording area on which information is recorded instead of said information recording area when said information cannot be recorded on said plurality of said information recording areas, and a management area in which position information indicative of a position of a faulty information recording area in which information cannot be recorded is recorded; reading means for reading out information stored in said recording areas; memory means for storing information recorded in said alternative recording area; and control means for causing said information recorded in said alternative recording area to be stored in said memory on the basis of said information on said management area, prior to reading information recorded in said information recording area, and causing information stored in said memory to be read without reading information recorded in said alternative recording area during operation of reading information stored in said recording areas.
Claim 11
Dependent Claim
171 words
An information reproducing apparatus comprising: an information recording medium comprising a plurality of recording areas, wherein said recording areas include a plurality of information recording areas, an alternative recording area on which information is recorded instead of said information recording area when said information cannot be recorded on said plurality of said information recording areas, and a management area in which position information indicative of a position of a faulty information recording area in which information cannot be recorded is recorded; reading means for reading out information stored in said recording areas; memory means for storing information recorded in said alternative recording area; and control means for causing said information recorded in said alternative recording area to be stored in said memory on the basis of said information on said management area, prior to reading information recorded in said information recording area, and causing information stored in said memory to be read without reading information recorded in said alternative recording area during operation of reading information stored in said recording areas.
Claim 12
Dependent Claim
41 words
An information reproducing apparatus according to claim 9, further including second memory means for storing said position information recorded in said management area, wherein said control means reads information recorded in said alternative recording area in response to said position information.
Claim 13
Dependent Claim
24 words
An information recording apparatus according to claim 9, wherein said detecting means detects said faulty information recording area in response to said position information.
Claim 14
Dependent Claim
20 words
An information recording apparatus according to claim 9, wherein said recording medium includes a plurality of tracks as recording areas.
Claim 15
Dependent Claim
19 words
An information recording apparatus according to claim 12, wherein said tracks include a plurality of sectors as recording areas.
Claim 16
Dependent Claim
18 words
An information recording apparatus according to claim 9, wherein said reading means is movable on said recording medium.
References Cited (Backward Citations)
CH463803A
Cited
US4145758A
Cited
US4405952A
Cited
FR2426938A1
Cited
GB2022298A
Cited
JPS57135410A
Cited
JPS5835733A
Cited
US4420807A
Cited
JPS5898806A
Cited
JPS58112154A
Cited
JPS58194143A
Cited
US4558446A
Cited
JPS5938930A
Cited
JPS5979406A
Cited
DE8334916U1
Cited
US4631723A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-07-17 | 1993-01-16 | 1993-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-07-17 | 1997-01-16 | 1997-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-07-17 | 2001-01-16 | 2001-07-18 | $7700.00 | Window Closed / Lapsed |