Method and mobile device for operating in different data transfer modes
View Patent ↗Various embodiments are described for data communication between a host device and a mobile communication device having two processors. In a first mode of operation, data communication occurs between the host device and a main processor of the mobile device. In a second mode of operation, data communication occurs between the host device and a communications processor of the mobile device. Some of the embodiments also implement power transfer from the host device to the mobile device.
1. A mobile communication device comprising:
a main processor adapted to control the operation of the mobile communication device;
a communication processor adapted to control reception and transmission of wireless communication data;
a mobile connector port adapted to connect a host device to the mobile communication device;
a switching unit configured to selectively allow data communication via the mobile connector port between the host device and the main processor at a first data rate or between the host device and the communication processor at a second data rate different from the first data rate;
a supply line configured to receive a charging current from the host device;
a battery configured to provide power to the mobile communication device; and
a battery to the supply line and the internal battery,
wherein the supply line is configured to provide the charging current to the internal battery for charging during data communication between the host device and the communication processor.
2. The mobile communication device of claim 1 , wherein the supply line is configured to provide the charging current to the internal battery for charging during data communication between the host device and the main processor.
3. The mobile communication device of claim 1 , wherein the communication processor and the main processor are adapted to communicate with one another and the switching unit to coordinate data communication with the host device.
4. A method for data communication between a host device and a mobile communication device having a main processor and a communication processor, wherein the method comprises:
connecting the host device with the main processor to allow data communication at a first data rate; and
connecting the host device with the communication processor to allow data communication at a different data rate when the mobile communication device operates as a wireless modem;
wherein the mobile communication device further includes a supply line configured to receive a charging current from the host device, a battery configured to provide power to the mobile communication device and a battery interface connecting the supply line with the internal battery, and the method further comprises providing the charging current to the internal battery for charging during data communication between the host device and the communication processor.
5. The method of claim 4 , wherein the method further comprises providing the charging current to the internal battery for charging during data communication between the host device and the main processor.
6. The method of claim 4 , wherein the method further comprises allowing communication between the communication processor and the main processor for coordinating data communication with the host device.