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Cellular phone

  • US 8,798,687 B2
  • Filed: 09/12/2008
  • Issued: 08/05/2014
  • Est. Priority Date: 09/14/2007
  • Status: Active Grant
First Claim
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1. A cellular phone comprising:

  • a rechargeable main power source;

    a telephone functional part supplied with electricity from the main power source;

    a telephone communication part supplied with electricity from the main power source;

    an auxiliary power source in case of temporary lack of the main power source;

    an entry process part supplied with electricity from the auxiliary power source; and

    a storage part for storing data necessary for the telephone functional part by being supplied with electricity from the main power source and the auxiliary power source,wherein the entry process part and the storage part share the auxiliary power source both for performing the entry process and for keeping data necessary for the telephone function part based on the same auxiliary power source in case of a temporary lack of the main power source, no auxiliary power source for exclusive use of the entry process part and no auxiliary power source for exclusive use of the storage part being comprised in the cellular phone.

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