Optical information storage in cellular mobile terminals

Jakke Mäkelä, Janne Aikio, Vadde Venkatesh, Timo Kolehmainen, Pentti Karioja

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review


    The trend towards so-called digital convergence (multiple functionality within a single terminal) is opening up a need for high-capacity storage within the cellular mobile terminals (CMT). Solid-state memories and magnetic microdrives are the most commercially mature options. Optical disk technology in this size range is immature, but has a unique potential: no other medium at present has the capability to be simultaneously low-cost, high-capacity, and exchangeable. In this paper, we explore the requirements for the implementation of optical disk storage in a CMT environment. From the technical point of view, these requirements include small form factor, high-enough data density and throughput, low power consumption, robustness, low cost, mass productability, and modularity. Although current technologies may satisfy some of these requirements individually, there is a need for combined optimization of all of these parameters. From the commercial point of view, the most crucial requirement is global standardization. Such standardization is crucial if wide interoperability is wanted (between CMT manufacturers, and even more crucially between CMTs and other appliances). Current optical storage standards are industry-driven and tend to be proprietary and/or incompatible. Even if the technical challenges can be met, optical data storage is not likely to be accepted in CMT applications unless global standardization proceeds more quickly than it is doing at present.
    Original languageEnglish
    Title of host publicationOptoelectronic and Wireless Data Management, Processing, Storage, and Retrieval
    PublisherInternational Society for Optics and Photonics SPIE
    Publication statusPublished - 2001
    MoE publication typeA4 Article in a conference publication
    EventInternational Symposium on the Convergence of IT and Communications, ITCom 2001: ITCom 2001 - Denver, United States
    Duration: 22 Aug 200124 Aug 2001

    Publication series

    SeriesProceedings of SPIE


    ConferenceInternational Symposium on the Convergence of IT and Communications, ITCom 2001
    Country/TerritoryUnited States


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