Communication method using input/output interface, and apparatus therefor
地域：
Suwon-si
摘要
An electronic device is disclosed. The electronic device comprises: a housing, an input/output interface, which includes a plurality of pogo pins exposed through a portion of the housing, and can be connected to an external device by a wire, an identification circuit, which is electrically connected to the input/output interface to identify the external device, a processor electrically connected to the identification circuit, and a booster electrically connected to the input/output interface to supply power to the external device. In addition, various embodiments understood from the specification are possible.
說明書
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Embodiments disclosed herein relate to a communication technology using an input/output interface.
An electronic device, such as a smartphone and a tablet PC, includes a wired input/output interface for connecting to external devices. The wired input/output interface is generally exposed to a part of the external surface of the electronic device to couple with a cable or other accessories. The electronic device may perform battery charging and/or wired communication in such a manner that the wired input/output interface is physically connected to a cable or other accessories having a plug.
The wired input/output interface may comply with various standards, for example, a universal serial bus (USB), a high definition multimedia interface (HDMI), a reduced standard-232 (RS-232), a plain old telephone service (POTS), and an inter integrated circuit (I2C) or universal asynchronous receiver/transmitter (UART).
The input/output interface for high speed communication, such as USB may include, for example, a USB connector. The input/output interface for low speed communication, such as I2C or UART, may be, for example, a POGO pin.
An input/output interface sensitive to the external environment, such as a pogo pin, has various problems such as early corrosion occurrence. In the case of a communication method such as I2C, it may be difficult to solve the corrosion problem due to limitations in using current. In addition, when using a communication method such as USB, even though the corrosion problem of a device is solved, there is a problem that current consumption increases.
權(quán)利要求
The invention claimed is:1. An electronic device comprising:a housing; an input/output interface including a plurality of pogo pins exposed through a portion of the housing and connectable to an external device in a wired manner; an identification circuit electrically connected to the input/output interface to identify the external device; a processor electrically connected to the identification circuit; and a booster electrically connected to the input/output interface to supply power to the external device, wherein the plurality of pogo pins includes:at least one first pin for data communication with the external device; a second pin electrically connected to the identification circuit to transfer an ID of the electronic device; a third pin electrically connected to the booster; and a fourth pin electrically connected to a ground of the electronic device, wherein the third pin is configured to supply or receive VBUS, and wherein the processor is configured to:after the VBUS being turned on, determine whether the external device is recognized within a first time interval through the input/output interface, and when the external device is not recognized within the first time interval, control the booster to turn off the VBUS. 2. The electronic device of claim 1 , further comprising:a user serial bus (USB) controller, wherein the input/output interface is electrically connected to the USB controller. 3. The electronic device of claim 1 , wherein the processor or the identification circuit is configured to trigger communication connection with the external device based at least on the second pin. 4. The electronic device of claim 3 , wherein the identification circuit is configured to allow the booster to supply power through the third pin when acquiring an ID of the external device through the second pin. 5. The electronic device of claim 4 , wherein the processor is configured to:monitor data communicated through the at least one first pin for a second time interval, and stop an operation of supplying the power when the data is not communicated within the second time interval. 6. The electronic device of claim 5 , wherein the second time interval is a time interval after the ID of the external device is acquired. 7. The electronic device of claim 4 , wherein the ID has a resistance value. 8. The electronic device of claim 1 , wherein the identification circuit is configured to detect a change in an ID of the external device while communicating data with the external device. 9. The electronic device of claim 8 , wherein the processor or the identification circuit is configured to stop communication of the data in response to the change in the ID. 10. The electronic device of claim 8 , wherein the processor or the identification circuit is configured to allow the booster to stop an operation of supplying power in response to the change of the ID. 11. The electronic device of claim 1 , further comprising:at least one charger electrically connected to the input/output interface; and a battery electrically connected to the charger. 12. The electronic device of claim 1 , wherein the input/output interface further includes:a fifth pin electrically connected to a charger, and wherein the input/output interface is configured to acquire power from the external device through the fifth pin. 13. The electronic device of claim 1 , wherein the input/output interface is configured to support a travel adapter (TA). 14. An electronic device comprising:a housing; a standard type of first user serial bus (USB) input/output interface exposed through a first portion of the housing; a non-standard type of second USB input/output interface including a plurality of pogo pins exposed through a second portion of the housing; a selection circuit configured to select the first USB input/output interface or the second USB input/output interface; an identification circuit electrically connected to the selection circuit to identify an external device; a processor electrically connected to the identification circuit; at least one charger electrically connected to at least one of the first USB input/output interface or the second USB input/output interface; and a battery electrically connected to the charger, wherein the plurality of pogo pins includes:at least one first pin electrically connected to the selection circuit to communicate data with the external device, a second pin electrically connected to the identification circuit by bypassing the selection circuit, a third pin electrically connected to the battery, and a fourth pin electrically connected to a ground of the electronic device, wherein the third pin is configured to supply or receive VBUS, and wherein the processor is configured to:after the VBUS being turned on, determine whether the external device is recognized within of a predetermined time through the input/output interface, and when the external device is not recognized within the predetermined time, control a booster to turn off the VBUS. 15. The electronic device of claim 14 , wherein the plurality of pogo pins further includes a fifth pin electrically connected to the charger. 16. The electronic device of claim 15 , wherein the processor is configured to provide power to the external device through the fourth pin or acquire power from the external device through the fifth pin when the external device is connected to the second USB input/output interface. 17. The electronic device of claim 14 , wherein the selection circuit includes a multiplexer. 18. The electronic device of claim 17 , wherein the processor or the identification circuit is configured to:when the external device is connected to the first USB input/output interface and another external device is connected to the second USB input/output interface, allow the multiplexer to communicate data between the multiplexer and the second USB input/output interface and not to communicate data between the multiplexer and the first USB input/output interface. 19. The electronic device of claim 14 , further comprising:a user serial bus (USB) controller, wherein the USB controller is configured to generate a signal at least associated with the second USB input/output interface. 20. The electronic device of claim 19 , wherein the USB controller is configured to generate a signal associated with the first USB input/output interface.
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