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Ralph LaBarge Patents |
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Inventor: LaBarge; Ralph
Address: Gambrills, MD
No. of patents: 1
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 7127066 |
Limited use DVD-video disc |
October 24, 2006 |
| A limited-use Digital Versatile Disc (DVD) includes a storage layer for storing content data and control key data. At least one mark of photosensitive dye is disposed on the disc exterior to the storage layer and over at least a portion of the control key data. In one embodiment, the |
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