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(12) United States Patent (10) Patent No.: US 6,991,099 B2 Delaere Et Al

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(12) United States Patent (10) Patent No.: US 6,991,099 B2 Delaere Et Al USOO6991.099B2 (12) United States Patent (10) Patent No.: US 6,991,099 B2 Delaere et al. (45) Date of Patent: *Jan. 31, 2006 (54) CONFIGURATION OF CLARIFIED 5,575,387 A 11/1996 Gelardi .................... 206/308.1 POLY PROPYLENE OPTICAL DISC 5,731,474 A 3/1998 Scrivens et al. STORAGE UNITS 5,782,347 A 7/1998 Fantone et al. .......... 206/308.1 5,785,172 A 7/1998 Bolognia et al. ........ 206/308.1 (75) Inventors: Marc Delaere, Lochristi (BE); Rajnish (Continued) Batlaw, Spartanburg, SC (US); Roberto Guzman, Villa Verdun (MX); Pedro FOREIGN PATENT DOCUMENTS Van Hoecke, Singapore (SG) EP O 608 358 9/1996 (73) Assignee: Milliken & Company, Spartanburg, SC OTHER PUBLICATIONS (US) International Search Report or the Declaration; International (*) Notice: Subject to any disclaimer, the term of this Application No. PCT/US03/10947; International Filing patent is extended or adjusted under 35 Date: Apr. 9, 2003. U.S.C. 154(b) by 184 days. Primary Examiner-Shian T. Luong (74) Attorney, Agent, or Firm-Terry T. Moyer; John E. This patent is Subject to a terminal dis- Vick, Jr claimer. s av 1.8 (57) ABSTRACT (21) Appl. No.: 10/122,718 1-1. Novel, quick, and reliable detection methods for determin (22) Filed: Apr. 15, 2002 ing the authenticity of optical and/or audio disc articles (65) Prior Publication Data (Such as compact discs, digital video discs, CD-ROM discs, and the like) are provided. Such a method basically entails US 2003/0192794 A1 Oct. 16, 2003 the incorporation of an identifier or marking means within the edges of target optical discS or within any other portion (51) Int. Cl. of a target disc Such that exposure to non-visible light B65D 85/57 (2006.01) Sources will provide the desired identification upon irradia (52) U.S. C. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 206/308.1; 206/232 tion O detection of the marking CS therein. Such (58) Field of Classification Search ............. 206/308.1, identifier or marking agent thus may be utilized in conjunc 206/309-313,493, 232,387.1, 459.5, 499; tion with a transparent holding case whereby the needed 402/73; 281/15.1 light Source may be exposed through the transparent walls See application file for complete Search history. thereof to permit detection of counterfeit or authentic discs without requiring opening of the case itself. Such a method (56) References Cited may also be utilized for discs that are removed from or have U.S. PATENT DOCUMENTS not been placed and sealed within Such a case as well. Specific methods of utilizing particular transparent cases are 4,566,590 A * 1/1986 Manning et al. ............ 206/232 thus also encompassed within this invention. Specific meth 4,829,691 A * 5/1989 Manjos et al. ................ 40/661 ods of utilizing particular transparent cases are thus also 2. A : f E. R - - - - - - - - - - - 2. encompassed within this invention as are novel Storage unit 5,360,62824 - -2 A 11/1994 ButlandaCKIllal ......................... 427/7 costs to maximize the benefits of the transparent 5,415,288 A * 5/1995 Ozaki ...................... 20387 properties inereoI. 5,452,282 A 9/1995 Abraham .................... 369/603 5,515,967 A * 5/1996 Fitzsimmons et al. ... 206/307.1 22 Claims, 2 Drawing Sheets US 6,991,099 B2 Page 2 U.S. PATENT DOCUMENTS 6,165,391 A 12/2000 Vedamuttu 6,170,658 B1* 1/2001 Dering .................... 206/308.1 5,788,068 A 8/1998 Fraser et al. ................ 206/310 6,206,186 B1 3/2001 Cerda 5,799,782 A 9/1998 Gelardi .................... 206/308.1 Vilaplana et al. ........ 206/308.1 5,819,926 A * 10/1998 O’Brien et al. .......... 206/308.1 6,250,461 B1 6/2001 Hu ................ ... 206/310 5,829,584. A * 11/1998 206/308.1 6.279,739 B1* 8/2001 Moore et al. ............... 206/312 5.839,576 A * 11/1998 206/308.1 6,283,284 B1 9/2001 Crane et al. ................ 206/310 5,887,714. A * 3/1999 206/308.1 6,298.986 B1* 10/2001 Chang ..... ... 206/310 5,894924 A 4/1999 Koch ... ... 206/310 6,357,584 B1* 3/2002 Simpson .................. 206/308.1 5,906.275 A * 5/1999 Jokic ....................... 206/308.1 6,363,043 B1 3/2002 Kondo .................... 369/53.21 5.931,291. A 8/1999 Sedon et al. 6,363.987 B1 * 4/2002 Koch ... 156/391 5,931,294 A 8/1999 Weingarden et al. .... 206/308.1 6,364,108 B1 4/2002 Bin ............................ 206/310 5.996,788 A 12/1999 Belden, Jr. et al. ......... 206/310 6,454,090 B1 9/2002 Flores, Jr. et al. ....... 206/308.1 6,029,848 A 2/2000 Cha et al. ................... 220/837 6,764.242 B1* 7/2004 Karten et al. ................. 402/73 6,047,819 A * 4/2000 Borst et al. 206/232 6,104.679 A 8/2000 Sollish ........................ 369/33 * cited by examiner U.S. Patent Jan. 31, 2006 Sheet 1 of 2 US 6,991,099 B2 U.S. Patent Jan. 31, 2006 Sheet 2 of 2 US 6,991,099 B2 92 US 6,991,099 B2 1 2 CONFIGURATION OF CLARIFIED in circular configuration) is thus available for utilization of POLY PROPYLENE OPTICAL DISC any number of identification purposes without affecting the STORAGE UNITS Sound or vision quality of the encoded information therein. Furthermore, Storage units for Such discS have predomi FIELD OF THE INVENTION nately been either polystyrene in nature (for CDs and CD-ROMs) or black (and thus opaque) polypropylene (for This invention relates to novel, quick, and reliable detec DVDs). Polystyrene is generally very clear and has become tion methods for determining the authenticity of optical commonplace in terms of CD and CD-ROM storage; how and/or audio disc articles (Such as compact discs, digital ever, Such material has proven to be less than reliable in video discs, CD-ROM discs, and the like). Such a method terms of long-term usage. Polystyrene is generally Suscep basically entails the incorporation of an identifier or marking tible to breakage easily, requires a two piece case to provide means within the edges of target optical discs or within any a hinge, and is more expensive than polyolefins. Opaque other portion of a target disc Such that exposure to non polypropylene prevents the ability to view the actual disc visible light sources will provide the desired identification prior to opening of the unit itself. Polypropylene withstands upon irradiation or detection of the marking means therein. 15 certain forces better than polystyrene (Such as accidental Such an identifier or marking agent thus may be utilized in drops, colliding with Solid objects, etc.), and is cheaper than conjunction with a transparent holding case whereby the Such an expensive material. Furthermore, transparent optical discS may be exposed through the transparent walls polypropylene has been utilized to a certain degree as well thereof to permit detection of counterfeit or authentic discs to reduce costs in other ways. For example, DVDS generally without requiring opening of the case itself. Such a method include an attached sleeve to the target Storage unit of may also be utilized for discs that are removed from or have transparent thin film in order to place an identifying publi not been placed and Sealed within Such a case as well. cation therein. Such a thin film sleeve increases costs to Such Specific methods of utilizing particular transparent cases are a degree that certain Storage unit producers have noted the thus also encompassed within this invention as are novel ability to remove the need for such a costly thin film sleeve Storage unit configurations to maximize the benefits of the 25 and move the published identification papers within the transparent properties thereof. Storage unit itself. Thus, with Sufficient transparency, the identifying publications can be viewed without opening the DISCUSSION OF THE PRIOR ART box itself. Unfortunately, even with Such a development in Storage Optical data Storage discs, Such as compact discs (CDs), unit design and production, there has been a lack of maxi digital video discs (DVDs), and compact discs having read mization of such a benefit. In the past, booklets of limited only memory (CD-ROMs), have been utilized within the size have been produced for informational purposes for the entertainment and computer field for a number of years, with user. Such booklets were placed within the Storage unit but DVDs recently entering the market with much higher normally required removal from the Storage unit itself prior amounts of available encoded information for more impres 35 to reading. Such booklets also cost a great deal of money to Sive Video results. Such discs generally comprise a layer of produce and pack. There thus exists the need to maximize plastic material, on one side of which is formed a micro the benefits of having the full published information docu relief pattern in the form of indentations which comprise an mentation within the inside of the target disc Storage unit. To encoded information Signal. This information-containing date, for example, there Still exists a Standard configuration Side exhibiting Such a micro-relief pattern is then provided 40 wherein the discS as Stored remain within the Storage unit with a lacquer-protected metallized reflective layer to permit and thus act as obstacles to reading the provided printed reading via a laser Sensor. DVDS may contain more than one information literature accompanying the disc itself. To date, Such layer of micro-relief patterns thus providing increased there has been no discussion or fair Suggestion on how best amount of information.
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