Dynamic information storage or retrieval – Storage medium structure – Optical track structure
Reexamination Certificate
1998-02-17
2001-03-20
Nguyen, Hoa T. (Department: 2752)
Dynamic information storage or retrieval
Storage medium structure
Optical track structure
C369S032010, C369S094000
Reexamination Certificate
active
06205112
ABSTRACT:
TECHNICAL FIELD
The present invention is generally related to optical storage media and more particularly related to an improved optical storage disc capable of storing data in multiple data formats.
BACKGROUND OF THE INVENTION
Digital storage systems are utilized to store digital assets such as video, audio, executable and non-executable computer programs, and data files. These systems generally utilize magnetic or optical media. Some systems, primarily of the magnetic type, are capable of a multiplicity of read/write cycles, while other systems primarily of the optical type, are capable of greater data storage densities but are usually limited to a single write cycle with a multiplicity of read cycles.
Although entities producing digital assets on optically readable discs may do so in a variety of formats, end users commonly have the equipment to read only a subset of the group of available formats. Because each format has an inherent set of available features which may lend the format to a particular type of digital asset, producers must limit themselves to the production of discs (and therefore the content features) having that combination of features required by the content which is most readily readable by the intended end user.
Digital assets are commonly written to 12.0 cm optical discs in one of the following formats:
CD-DA (Compact Disc-Digital Audio)
CD-ROM (Compact Disc-Read Only Memory)
CD-R (Compact Disc-Recordable)
CD-RW (Compact Disc-ReWritable)
“Mixed Mode” CD
Hidden Track (a.k.a. I-Track, ROM Ready, and AUDIOVISION™)
Enhanced Audio Product (a.k.a. SELECTWARE™)
CD+ (a.k.a. Stamped Multisession, and CD Extra)
CD-I Ready (Compact Disc-Interactive)
CD+G (Compact Disc+Graphics)
PHOTO CD
KARAOKE CD
DVD-ROM (Digital Versatile Disc-Read Only Memory)
DVD-Audio (Digital Versatile Disc-Audio)
DVD-Video (Digital Versatile Disc-Video)
DVD-RAM (Digital Versatile Disc-Random Access Memory)
DVD-R (Digital Versatile Disc-Recordable)
Divx-DVD
There are of course other formats and reader/writers capable of reading and/or writing in multiple formats. For example, certain DVD players are capable of reading CD-ROM discs in various formats and certain CD drives are capable of reading CD-DA, CD-ROM, CD-RW, CD-R, PHOTO CD, KARAOKE CD, ISO 9660, and HFS Discs.
There are also known to the art standards for recording various formats on a single sided optical disc. For example, the UNIVERSAL DISK FORMA™ (see
Universal Disk Format Specification
, Optical Storage Technology Association OSTA-2 Revision 1.50, Feb. 4, 1997) and Mixed-Mode CD ROM (see
Integrating Mixed
-
Mode CD
-
ROM
, CINRAM, J. Busk, Feb. 6, 1992).
Likewise, there are several methods known of recording optical media. For example, Horimai, U.S. Pat. No. 5,623,478 teaches recording a first and second pit string on opposite sides of a track center. Additionally, Slaten, U.S. Pat. No. 4,310,919 teaches a two sided video disc member wherein both sides contain digital information. Further, Hinz, U.S. Pat. No. 5,540,966 teaches a dual layer optical medium utilizing at least one partially reflective layer such that both layers may be read from a single optical storage disc side.
Thus the prior art teaches multi-layer optical discs, dual sided optical discs, multiple data formats, and readers capable of reading multiple formats. However, the prior art does not teach a dual sided optical disc having different formats on opposing sides.
SUMMARY OF THE INVENTION
The present invention teaches an optical disc having at least one data encoded area on each side. An optical disc of the present invention may be configured, in for example, in at least one of the following fashions:
Side One
Side Two
DVD-Video
DVD-Audio
DVD-Video
CD-DA
DVD-RAM
CD-ROM
DVD-Audio
CD-DA
KARAOKE-CD
CD-DA
KARAOKE-CD
DVD-Audio
“Mixed Mode” CD (or MMVF)
CD-DA
DVD-Video
PHOTO CD
DVD-R
CD-ROM
CD-I
DVD-Video
Divx-DVD
DVD-Video
Other combinations of various formats may also be configured such that entities producing digital assets may provide retailers and consumers with a wider range of products which require less shelf space. It is therefore, a primary object of the present invention to provide an improved optical disc. It is a further object of the present invention to provide an optical disc which is capable of at least one of being read by both standard Audio CD drives and computer CD drives, or DVD and Divx-DVD drives, or DVD drives and CD drives, or the like. It is still a further object of the present invention to provide an optical disc which is more economical to retailers in that it allows a greater number of products to be sold with a reduced amount of storage or display space. It is yet a further object of the present invention to provide users with optical discs which are configured to requirements. It is yet still a further object of the present invention to provide an optical disc which is easy to use, manufacture, and economical.
REFERENCES:
patent: 4310919 (1982-01-01), Slaten
patent: 5533002 (1996-07-01), Abraham
patent: 5540966 (1996-07-01), Hintz
patent: 5579296 (1996-11-01), Smith et al.
patent: 5623478 (1997-04-01), Horimai
patent: 5640382 (1997-06-01), Florczak et al.
patent: 5640383 (1997-06-01), Kamoto et al.
patent: 5732088 (1998-03-01), Sako
patent: 5793734 (1998-08-01), Tsuchiya et al.
patent: 5802174 (1998-09-01), Sako et al.
patent: 5828648 (1998-10-01), Takasu et al.
patent: 5878018 (1999-03-01), Moriya et al.
patent: 5903531 (1999-05-01), Satoh et al.
patent: 5933401 (1999-08-01), Lee et al.
patent: 5959946 (1999-09-01), Tognazzini
Anonymous, “What is DVD?”, mpeg.co.uk, Oct. 29, 1997.
Anonymous, “DVD and Microsoft Operating Systems”, Nov. 6, 1997.
Misty Roohi, “More than CD . . . Enhanced CD Formats”, copyright 1993 by Cinram.
Rich D'Ambrise, “A Closer Look at DVD”, Maxwell Corporation of America, http://www.cd-info.com/CDinfo.com/CDIC/Technology/DVD/dvd.html.
Anonymous, “PreMastering in the Age of DVD, A Primer for Creating Content for DVD”, Sonic Solutions.
Anonymous, “20 Questions About DVD”,Family PC, Nov. 1997, pp.134-138.
Clayton Summers, “Introduction to ISO 9660, what it is, how it is implemented, and how it has been extended.”, copyright 1993 by Cinram.
Steve Soto, “An Overview to Multimedia CD-ROM Production”, copyright 1993 by Cinram.
J. Busk, “Integrating Mixed-Mode CD-ROM”, copyright 1993 by Cinram.
J. Busk et al., “Compact Disc Terminology”, copyright 1993 by Cinram, second edition.
Anonymous, “MultiRead Specification for CD-ROM, CD-R/RW and DVD-ROM Devices”, copyright 1997 by Optical Storage Technology Association, Revision 1.0.
Anonymous, “Overview of CD-ROM Capacity”, Cinram/Disc Manufacturing, Oct. 29, 1997.
Anonymous, “Plant Tour of How Compact Discs Are Made”, Cinram/Disc Manufacturing, Oct. 29, 1997.
Anonymous, “Overview of DVD”, Cinram.Disc Manufacturing, Oct. 29, 1997.
Anonymous, “DVD Frequently Asked Questions”, Cinram/Disc Manufacturing, Oct. 29, 1997.
Dana Parker, “UDF: When is a Specification a Standard?”, The Technology of DVD, Oct. 29, 1997.
Anonymous, “CD Data Input Specifications”, Cinram/Disc Manufacturing, Oct. 29, 1997.
Anonymous, “Overview of CD-ROM Encryption, Copy Protection, and Metering”, Cinram/Disc Manufacturing, Oct. 29, 1997.
Breen, III William J.
Chu Kim-Kwok
Gateway Inc.
Nguyen Hoa T.
Suiter & Associates PC
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