IEEE Spectrum

Issue 10 • Oct. 1991

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Displaying Results 1 - 4 of 4
  • Video compression makes big gains

    Publication Year: 1991, Page(s):16 - 19
    Cited by:  Papers (29)  |  Patents (46)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (536 KB)

    How new standards for video compression and new IC chips will change the worlds of computing, broadcasting, and communication is discussed. An explanation of how video compression works is given. The three digital video standards that have been proposed are described. They are the Joint Photographic Experts Group (JPEG) standard for still picture compression, the Consultative Committee on Internat... View full abstract»

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  • Teaching information networking

    Publication Year: 1991, Page(s):22 - 23
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (323 KB)

    An integrated master's degree program on information networking is described. Business and public policy, as well as computers and telecommunications, are studied in this program. Typical technology courses include such traditional electrical engineering courses as communications engineering and computer architecture, plus courses like circuit and packet switching developed specifically for the pr... View full abstract»

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  • Optical lithography stalls X-rays

    Publication Year: 1991, Page(s):24 - 27
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (624 KB)

    The revival in optical lithography resulting from continuing advances in photoresists, phase-shifting masks, high-numerical-aperture step-and-repeat optical systems, multilevel-resist processing, and top-surface imaging techniques is discussed. Optical lithography is being used to make advanced IC chips, with 0.35 mu m geometries in research, 0.5 mu m in production. Ultraviolet (UV) light in the 2... View full abstract»

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  • Magnetism without magnets

    Publication Year: 1991
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (145 KB)

    The earliest discoveries of electromagnetism are briefly recounted. The work of Volta (primary battery), Oersted (generating a magnetic field by a current) and Ampere (solenoid) is described.<> View full abstract»

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