A portable USB2.0 personal storage device that uses built-in encryption and allows data access through biometric scanning of a finger print is described. Biometric image derived templates are stored on the removable 32 mm write once (WO) media. The encrypted templates travel with the disc and allow access to the data providing the biometric feature (e.g. the finger itself) is present. The device also allows for export and import of the templates under secure key exchange protocols. The storage system is built around the small form factor optical engine that uses a tilt arm rotary actuator and front surface media.
The utility of the compact disk to store data and images is almost unparalleled, yet to date little has been achieved in the market place. This paper first reviews the basics of CD-ROM (the data equivalent of CD audio technology), outlines the varieties of CD disks in development, and reviews the standards. Then from the analysis of the device a set of advantages and disadvantages are derived that apply to laser optical storage of digital data in particular in CD formats. A set of application ground rules follows with some typical examples of good and bad applications. Finally the future is examined as it relates to new evolving optical disk trends and how they could impact CD formats and applications.
CD-ROM represents a novel and relatively effective way to store and retrieve images in a PC environment. Indeed it
may be the only current method to have real utility.
This paper reviews the basics of this method and the various format options available. The advantage of the
CD format and, more critically, its' very real limitations are reviewed. From this analysis a set of application 'ground
rules' will be developed that attempt to defme what are potentially good (i.e. successful) applications and what are not
likely to succeed in the market place.
Finally the evolution trends for newer image related laser based read only formats are discussed and some
possible R & D routes outlined.