Configuration of clarified polypropylene optical disc storage units
US6991099B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 15, 2002 |
| Grant date | Jan 31, 2006 |
| Priority date | — |
| Expiry date | Oct 16, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D2203/02
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Novel, quick, and reliable detection methods for determining the authenticity of optical and/or audio disc articles (such as compact discs, digital video discs, CD-ROM discs, and the like) are provided. Such a method basically entails the incorporation of an identifier or marking means within the edges of target optical discs or within any other portion of a target disc such that exposure to non-visible light sources will provide the desired identification upon irradiation or detection of the marking means therein. Such an identifier or marking agent thus may be utilized in conjunction with a transparent holding case whereby the needed light source may be exposed through the transparent walls thereof to permit detection of counterfeit or authentic discs without requiring opening of the case itself. Such a method may also be utilized for discs that are removed from or have not been placed and sealed within such a case as well. Specific methods of utilizing particular transparent cases are thus also encompassed within this invention. Specific methods of utilizing particular transparent cases are thus also encompassed within this invention as are novel storage unit configurations to m…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.