US Patent 7146196 Method for identifying detachable cover of a cellular phone

A cellular phone includes a housing and a cover detachably installed on the housing, the cover containing an ID module for identifying the cover. The cellular phone also contains a transceiver for controlling operation of the cellular phone, the transceiver containing a detection port for communicating with the ID module of the cover and determining identification of the cover, a memory electrically connected to the transceiver, and a database stored in the memory for providing operation parameters to the transceiver according to the identification of the cover.