GB2035661B - Disc record having flat-top playing surface - Google Patents
Disc record having flat-top playing surfaceInfo
- Publication number
- GB2035661B GB2035661B GB7938947A GB7938947A GB2035661B GB 2035661 B GB2035661 B GB 2035661B GB 7938947 A GB7938947 A GB 7938947A GB 7938947 A GB7938947 A GB 7938947A GB 2035661 B GB2035661 B GB 2035661B
- Authority
- GB
- United Kingdom
- Prior art keywords
- flat
- playing surface
- disc record
- top playing
- record
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 241001270131 Agaricus moelleri Species 0.000 title 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
- G11B23/0057—Intermediate mediums, i.e. mediums provided with an information structure not specific to the method of reproducing or duplication such as matrixes for mechanical pressing of an information structure ; record carriers having a relief information structure provided with or included in layers not specific for a single reproducing method; apparatus or processes specially adapted for their manufacture
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
- G11B3/68—Record carriers
- G11B3/685—Intermediate mediums
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
- G11B3/68—Record carriers
- G11B3/72—Groove formations, e.g. run-in groove, run-out groove
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB7844736 | 1978-11-16 | ||
US4292179A | 1979-05-29 | 1979-05-29 |
Publications (2)
Publication Number | Publication Date |
---|---|
GB2035661A GB2035661A (en) | 1980-06-18 |
GB2035661B true GB2035661B (en) | 1983-02-09 |
Family
ID=26269597
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7938947A Expired GB2035661B (en) | 1978-11-16 | 1979-11-09 | Disc record having flat-top playing surface |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE2946330A1 (en) |
GB (1) | GB2035661B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56117341A (en) * | 1980-02-18 | 1981-09-14 | Toshiba Corp | Optical disk and its manufacture |
-
1979
- 1979-11-09 GB GB7938947A patent/GB2035661B/en not_active Expired
- 1979-11-16 DE DE19792946330 patent/DE2946330A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
DE2946330A1 (en) | 1980-05-29 |
GB2035661A (en) | 1980-06-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |