Patent US5946286A successfully refreshed from Google Patents.
US5946286A
Expired / Lapsed
US
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Customized graphics for dual layer optical discs
Assignee: GlassBridge Enterprises Inc
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Filing: 1997-03-20
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Granted: 1999-08-31
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Expires: 2017-03-20
Abstract
Abstract A dual layer optical disc having images encoded therein. The dual layer optical disc includes a first data layer and a second data layer coupled to the first data layer. An optically viewable image is encoded within the first data layer or the second data layer. The viewable image may be a light contrast, medium contrast, or high contrast image. The first data layer and the second data layer may have a balanced reflectivity rating. In another embodiment, the first data layer and the second data layer have an unbalance reflectivity rating, for varying the visibility of images encoded therein. The dual layer optical disc may further include a second side, having a third data layer and a fourth data layer having an optically viewable image encoded within the third data layer or the fourth data layer. The optically viewable image may be a holographic image.
Inventors
- 👤 Ted L. Bahns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:33
CPC Classifications
G; G11; G11B; G11B7/00; G11B7/24; G11B7/24094; G11B23/00; G11B23/38; G11B23/40; G11B7/26; G11B7/261; G11B7/2403; G11B7/24035; G11B7/24038
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
139 words
A dual layer optical disc having images encoded therein, the dual layer optical disc comprising: a first data layer including a first reflective layer; a second data layer including a second reflective layer, the second data layer coupled to the first data layer wherein the first data layer has a first effective reflectivity value, and the second data layer has a second effective reflectivity value; and an optically viewable image encoded within the first data layer, wherein the first data layer having the optically viewable image encoded therein includes a data region and an image region, each having a plurality of lands and pits, wherein the optically viewable image encoded therein is defined by the lands in the image region have a height less than the height of the lands located within the data region relative to the pits.
Claim 2
Dependent Claim
139 words
A dual layer optical disc having images encoded therein, the dual layer optical disc comprising: a first data layer including a first reflective layer; a second data layer including a second reflective layer, the second data layer coupled to the first data layer wherein the first data layer has a first effective reflectivity value, and the second data layer has a second effective reflectivity value; and an optically viewable image encoded within the first data layer, wherein the first data layer having the optically viewable image encoded therein includes a data region and an image region, each having a plurality of lands and pits, wherein the optically viewable image encoded therein is defined by the lands in the image region have a height less than the height of the lands located within the data region relative to the pits.
Claim 3
Dependent Claim
21 words
The dual layer optical disc of claim 1, further comprising a second optically viewable image encoded within the second data layer.
Claim 4
Dependent Claim
19 words
The dual layer optical disc of claim 1, further comprising optically readable data encoded within the second data layer.
Claim 5
Dependent Claim
19 words
The dual layer optical disc of claim 1, further comprising optically readable data encoded within the first data layer.
Claim 6
Dependent Claim
24 words
The dual layer optical disc of claim 1, wherein the optically viewable image is a light contrast image having optically readable data encoded therein.
Claim 7
Dependent Claim
21 words
The dual layer optical disc of claim 1, wherein the first layer is semi-reflective, and the second data layer is reflective.
Claim 8
Dependent Claim
21 words
The dual layer optical disc of claim 1, wherein the first reflectivity value is substantially equal to the second reflectivity value.
Claim 9
Dependent Claim
24 words
The dual layer optical disc of claim 1, wherein the first effective reflectivity value is not substantially equal to the second effective reflectivity value.
Claim 10
Dependent Claim
19 words
The dual layer optical disc of claim 1, further comprising a protective layer coupled to the second data layer.
Claim 11
Dependent Claim
20 words
The dual layer optical disc of claim 1, further comprising a third data layer coupled to the second data layer.
Claim 12
Dependent Claim
18 words
The dual layer optical disc of claim 10, wherein the third data layer includes an image encoded therein.
Claim 13
Dependent Claim
17 words
The dual layer optical disc of claim 1, wherein the optically viewable image is a holographic image.
Claim 14
Dependent Claim
111 words
A dual layer optical disc having an image encoded therein, the dual layer optical disc comprising: a first layer including a plurality of lands and a plurality of pits, and a first reflective layer; a second layer coupled to the first layer, the second layer having a plurality of lands and a plurality of pits, and a second reflective layer, and wherein the first data layer has a first effective reflectivity value, and the second data layer has a second effective reflectivity value; and an optically viewable image encoded within the first layer, wherein the optically viewable image is defined by a region within the first layer having reduced height lands.
Claim 15
Dependent Claim
111 words
A dual layer optical disc having an image encoded therein, the dual layer optical disc comprising: a first layer including a plurality of lands and a plurality of pits, and a first reflective layer; a second layer coupled to the first layer, the second layer having a plurality of lands and a plurality of pits, and a second reflective layer, and wherein the first data layer has a first effective reflectivity value, and the second data layer has a second effective reflectivity value; and an optically viewable image encoded within the first layer, wherein the optically viewable image is defined by a region within the first layer having reduced height lands.
Claim 16
Dependent Claim
20 words
The dual layer optical disc of claim 13, wherein the optically viewable image may be viewed through the second layer.
Claim 17
Dependent Claim
18 words
The dual layer optical disc of claim 13, wherein the optically viewable image is a light contrast image.
Claim 18
Dependent Claim
18 words
The dual layer optical disc of claim 13, wherein the optically viewable image is a medium contrast image.
Claim 19
Dependent Claim
18 words
The dual layer optical disc of claim 13, wherein the optically viewable image is a heavy contrast image.
Claim 20
Dependent Claim
113 words
A dual layer optical disc having an image encoded therein, the dual layer optical disc comprising: a first protective layer; a first layer including a first data layer having a first reflective layer formed thereover; a second layer interposed between the first protective layer and the first layer, the second layer including a second data layer having a second reflective layer formed thereover wherein the first data layer has a first effective reflectivity value, and the second data layer has a second effective reflectivity value; and an optically viewable image encoded within the first layer or the second layers, wherein the optically viewable image is defined by a region having reduced height lands.
Claim 21
Dependent Claim
113 words
A dual layer optical disc having an image encoded therein, the dual layer optical disc comprising: a first protective layer; a first layer including a first data layer having a first reflective layer formed thereover; a second layer interposed between the first protective layer and the first layer, the second layer including a second data layer having a second reflective layer formed thereover wherein the first data layer has a first effective reflectivity value, and the second data layer has a second effective reflectivity value; and an optically viewable image encoded within the first layer or the second layers, wherein the optically viewable image is defined by a region having reduced height lands.
Claim 22
Dependent Claim
22 words
The dual layer optical disc of claim 18, wherein the first layer and the second layer have a balanced effective reflectivity value.
Claim 23
Dependent Claim
22 words
The dual layer optical disc of claim 18, wherein the first layer and the second layer have an unbalanced effective reflectivity value.
Claim 24
Dependent Claim
22 words
The dual layer optical disc of claim 18, wherein the first reflective layer is semi-reflective and the second reflective layer is reflective.
Claim 25
Dependent Claim
44 words
The dual layer optical disc of claim 18, further comprising a third layer including a third data layer having a third reflective layer formed thereover, wherein the first protective layer is formed of an adhesive and couples the second layer to the third layer.
Claim 26
Dependent Claim
19 words
The dual layer optical disc of claim 22, further comprising an optically viewable image encoded within the third layer.
Claim 27
Dependent Claim
30 words
The dual layer optical disc of claim 22, further comprising a fourth layer coupled to the third layer, including a fourth data layer having a fourth reflective layer formed thereover.
References Cited (Backward Citations)
US4819223A
Cited
US4656106A
Cited
US4929821A
Cited
US4834843A
Cited
US5101184A
Cited
GB2277827A
Cited
GB2250626A
Cited
US5452282A
Cited
WO1993008565A1
Cited
EP0566032A2
Cited
US5346654A
Cited
US5267756A
Cited
WO1994010684A1
Cited
WO1994024665A1
Cited
US5509991A
Cited
EP0643391A1
Cited
EP0682341A1
Cited
US5607188A
Cited
US5540966A
Cited
US5751690A
Cited
US5675570A
Cited
JPH08273331A
Cited
US5608728A
Cited
EP0762407A2
Cited
EP0818782A2
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-08-30 | 2003-03-01 | 2003-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-08-30 | 2007-03-01 | 2007-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-08-30 | 2011-03-01 | 2011-08-31 | $7700.00 | Window Closed / Lapsed |