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US Patent 7877815 Battery authentication in a wireless communication device

Patent 7877815 was granted and assigned to Kyocera Corporation on January, 2011 by the United States Patent and Trademark Office.

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Patent
Patent
1

Patent attributes

Current Assignee
Kyocera Corporation
Kyocera Corporation
1
Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
1
Patent Number
78778151
Patent Inventor Names
Murali Krishna Bandaru1
Doosun Yoo1
Date of Patent
January 25, 2011
1
Patent Application Number
113364471
Date Filed
January 20, 2006
1
Patent Citations Received
‌
US Patent 11691429 Supply authentication via timing challenge response
2
Patent Primary Examiner
‌
Thanhnga B Truong
1
Patent abstract

Multiple battery authentication security levels and procedures alert a user of counterfeit or unapproved batteries that are installed after manufacture of the wireless communication device. In an exemplary a battery authentication system, a mobile device sends a pre-stored plain text to a battery installed in the mobile device. An approved battery receives the plain text and performs an encryption algorithm on the plain text. Encrypted text is sent back to the mobile device. The mobile device compares the received encrypted text with a pre-stored encrypted text. If the received encrypted text matches the pre-stored encrypted text, then the battery is authenticated. Upon completion of the authentication of the installed battery, the mobile phone conducts normal battery and charging operation. If the received encrypted text does not match the pre-stored encrypted text, then the device enters authentication failure events that limit the use of the battery.

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