Switched-current is an analog, discrete in time, signal processing technique that is fully compatible with any digital CMOS technology. This means that analog circuits can be realized together with digital components on a single chip without any additional technological processes. In designs implemented using the switched-current technique, the individual circuit elements interact by the means of currents, which allows to reduce voltage swings and thus power consumption. This work investigated the implementation of a low power mixed signal image compression system in TSMC 0.35um technology. The major components of this system were two dimensional discrete cosine transform processor, analog to digital converter, quantizer and entropy encoder. The discrete cosine transform section was implemented using switched-current technique. The digital part consisting of the quantizer, entropy encoder and control unit was modelled using VHDL and then synthesized into standard cells.
Library of Congress Subject Headings
Mixed signal circuits--Design and construction; Image compression; Metal oxide semiconductors, Complementary--Design and construction
Department, Program, or Center
Computer Engineering (KGCOE)
Divatia, Reema, "0.35um implementation of an experimental mixed signal image compression circuit" (2006). Thesis. Rochester Institute of Technology. Accessed from
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