Updatable mobile handset based on Linux with compression and decompression techniques
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United States of America Patent
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Oct 12, 2010
Grant Date -
Aug 24, 2006
app pub date -
Dec 21, 2005
filing date -
Nov 17, 2000
priority date (Note) -
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status (Latency Note)
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Abstract
There are two different types of compression used on the Embedded Linux Platform that the present invention is targeting. For the kernel, a singular compression is used. A whole kernel is compressed into a single compressed zImage by zlib at once. When the kernel is loaded into RAM, the whole kernel has to be decompressed to RAM and executes there. The root file system is built through the CramFS that employs a different compression mechanism. It is a block-based compression. When the device is running, it is not necessary to load the whole file system to RAM. The kernel mounts the file system and performs the decompression on a file when it is needed.
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