Method for protecting a circuit module in a communication device

Method for protecting a circuit module in a communication device

A method for protecting a circuit module in a communication device includes first detecting whether a circuit module is present in the communication device. A next step includes measuring a supply voltage to the communication device. A next step includes comparing the supply voltage to a predetermin...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: MCMAHAN PETER, ROBERT M JOHNSON JR
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
HANDLING RECORD CARRIERS
PHYSICS
PRESENTATION OF DATA
RECOGNITION OF DATA
RECORD CARRIERS
TELEPHONIC COMMUNICATION
TRANSMISSION
WIRELESS COMMUNICATIONS NETWORKS
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Beschreibung
Zusammenfassung:A method for protecting a circuit module in a communication device includes first detecting whether a circuit module is present in the communication device. A next step includes measuring a supply voltage to the communication device. A next step includes comparing the supply voltage to a predetermined threshold voltage. When the supply voltage is below the threshold, a next step includes supplying normal functionality to the phone and returning to the comparing step. However, when the supply voltage is above the threshold, a next step includes powering down a connection to the SIM card to limit functionality of the communication device.