Low cost interface in pho
Originating portfolio: TECH
Estimated expiration: 2035-Mar-04
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The invention claims a device accessory method and computer program product and it comprises the device and accessory system of. Said device comprises at least one processing device comprises a computer program code memory. Said accessories: Interface the interface is set with at least one power supply pin and signal pin; And resistance part the resistance element is collocated through the signal pin of the battery battery identification resistor coupled. Said device further comprises: Interface the interface has at least one power supply pin and the battery identify pin; And detecting part of the detecting component is configured to detect with the battery identify pin associated with the resistance and based on the detected resistance of the accessory determining whether the said device is attached.
1 device the device comprises: Interface the interface is set with at least one power supply pin and signal pin; And resistance part the resistance element is configured via the signal pin is coupled to the another device of battery battery identification resistor wherein the said resistance component is configured to indicate through basing on said device the charging state changing the resistance part of the resistance caused by the battery the battery identify resistor the voltage change on the data wherein said electric resistance of the first value indicating the said device is the power supply pin of power supply and the resistance of the second value indicating said device not to the power supply pin of power supply.
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