Electronic device, data transfer controlling program thereof, and circuit chip

• US 20070253261A1
• Filed: 09/28/2006
• Published: 11/01/2007
• Est. Priority Date: 04/18/2006
• Status: Active Grant

• Current Assignee: Fujitsu Limited
• Original Assignee: Fujitsu Limited
• Inventors: Uchida, Hiroyuki, Shida, Isamu
• Granted Patent: US 8,245,275 B2
• Time in Patent Office: Days
• US Class Current: 365/189.50
• CPC Class Codes: H04M 1/72409 by interfacing with external accessories hands-free H04M1/60

Abstract

The present invention relates to data transfer to an external storage device disposed on or connected to an electronic device and can accelerate the data transfer. The present invention relates to an electronic device (portable terminal device) connected or disposed with an external storage device, includes a transmission channel connected to an external device (personal computer) that is a data source to transmit data, and simplifies a data transmission path intervening between the transmission path and the external storage device to accelerate the data transfer and accelerate the writing of data into the external storage device.

Claims

1. An electronic device connected or disposed with an external storage device, the electronic device comprising;

a transmission channel that is connected to an external device to transmit data; and

a data transferring unit that is connected to the transmission channel, the data transferring unit including a switching function allowing or blocking passage of data, in case of writing data into the external storage device, the data transferring unit allowing passage of the data received from the transmission channel to transfer the data to the external storage device.

2. The electronic device of claim 1, comprising:

a data processing unit that is connected to the transmission channel, the data processing unit including a switching function receiving or blocking data, the data processing unit superimposing the data received from the external device through the transmission channel on a carrier signal.

3. The electronic device of claim 1, comprising:

a detecting unit that detects whether the external device is connected to the transmission channel, wherein the data transferring unit is controlled based on the detection result of the detecting unit.

4. A data transfer controlling program of an electronic device connected or disposed with an external storage device, the electronic device including a computer, the data transfer controlling program being executed by the computer, the program comprising the steps of:

allowing or blocking passage of data sent from an external device; and

transferring the data received from the external device to the external storage device.

5. The data transfer controlling program of an electronic device of claim 4, comprising the steps of:

detecting whether the external device is connected to a transmission channel;

generating an inquiry representing whether the data are input to a data processing unit or input to a data transferring unit, based on detecting whether the external device is connected to the transmission channel; and

generating display of the inquiry.

6. A circuit chip of an electronic device connected or disposed with an external storage device, the chip comprising:

a data transferring unit that is connected to a transmission channel, the data transferring unit including a switching function allowing or blocking passage of data, in case of writing data into the external storage device, the data transferring unit allowing passage of the data from the transmission channel to transfer the data to the external storage device.

7. The circuit chip of claim 6, comprising:

a data processing unit that is connected to the transmission channel, the data processing unit including a switching function receiving or blocking data, the data processing unit superimposing the data received from an external device through the transmission channel on a carrier signal.