KR101273704B1 - Storage device and method connecting external device used thereof - Google Patents

Abstract

PURPOSE: A storage device and a connection control method using the same are provided to implement operation in various modes of a USB memory, a USB cable, and a charging cable by using the simple connection relation switching of a bus switch. CONSTITUTION: A first bus switch (111) is connected to a terminal connector (115) through a first bus line and connected with a memory unit through a memory line. A second bus switch (112) is connected to a PC connector (118) through a second bus line and connected to the memory unit through the memory line. A switch line connects the first and the second bus switches. A power line delivers power from a PC to a portable terminal by connecting the PC connector with the terminal connector. A control unit (113) selectively connects the first bus line to the memory or switch lines and selectively connects the second bus line to the memory or switch line. [Reference numerals] (110) Memory unit; (111) First bus switch; (112) Second bus switch; (113) Control unit; (114) Mode selection switch; (115) Terminal connector; (116) Charging mode converter; (117) Terminal mode converter; (118) PC connector

Description

Storage device and device connection control method using same {STORAGE DEVICE AND METHOD CONNECTING EXTERNAL DEVICE USED THEREOF}

The present invention relates to a storage device and a method of connecting a device using the same, and more particularly, it is possible to be connected to a portable terminal and a personal computer individually or to be connected together. A storage device that can operate in various modes, such as a USB memory that can use internal memory, a USB cable that can charge a small amount of power and transfer data between devices, and a charging cable that can charge a large amount of power by simply switching the connection of a simple bus switch. It relates to a device connection method.

Recently used USB storage devices are provided as a memory having a large storage capacity is used as a storage device that can easily move a large amount of data between a personal computer or a laptop with a USB port without a separate communication means. Recently, as USB storage devices have been miniaturized and memory storage capacity has increased, more and more data that require security, such as authorized certificates used for Internet banking, are being carried on USB storage devices.

In addition, as the number of pixels of a camera phone, which is becoming more common in recent years, the number of shooting using a mobile phone increases, an additional flash memory for storing a captured image increases as the capacity of the captured screen increases. It is increasing.

However, in the case of a conventional USB storage device, its use is limited to a simple storage means, and it is usually only a simple accessory, and a means for transmitting and receiving data with an external device is limited to a USB connector, such as a mobile phone or a digital camera. In order to transmit and receive data by connecting to other portable electronic devices, there is a problem in that a separate data cable is required.

In addition, as the functions of the mobile phone are diversified from simple call functions to taking pictures, playing games, listening to music, and watching DMB (Digital Multimedia Broadcasting), the battery consumption is greatly increased, and it is inconvenient to have a separate auxiliary battery. If this is not done in advance, there is a problem that the battery is discharged and cannot be used when necessary.

Accordingly, in recent years, a device using an auxiliary power source capable of emergency charging when the battery of the mobile phone is discharged by using a separate USB charging device has been developed and used. There is a problem that data cable is required and its use is limited.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object thereof is to be individually connected to the mobile terminal and the personal computer or the mobile terminal and the personal computer can be connected together. Storage device that can operate in various modes such as USB memory that can use internal memory by changing the connection of bus switch, USB cable that can charge a small amount of power and transfer data between devices, charging cable that can charge a large amount of power, and a device using the same To provide a connection method.

In addition, it is an object to allow a large amount of power charging operation to be performed to a portable terminal via a personal computer automatically when the portable terminal and the personal computer are connected together.

It is also an object of the present invention to operate as a USB cable capable of automatically charging a small amount of power and transferring data between devices when the portable terminal and the personal computer are connected together.

According to an aspect of the present invention, there is provided a storage device having a built-in memory for storing data, and a terminal connector for connecting to a portable terminal and a PC connector for connecting to a personal computer. A first bus switch connected to the memory unit via a first bus line and the other side of the first bus line; A second bus switch having one side connected to the PC connector through a second bus line and the other side connected to a memory unit through a memory line; A switch line connecting the other side of the first bus switch to the other side of the second bus switch; A power supply line connecting the PC connector and the terminal connector to transfer power from a personal computer to the portable terminal; And controlling the first bus switch to selectively connect a first bus line to a memory line or a switch line, and to control the second bus switch to selectively connect a second bus line to a memory line or a switch line. Control unit; The control unit detects whether the portable terminal is connected to the personal computer through the terminal connector and the PC connector, and controls the connection state of the first bus switch and the second bus switch according to the detection state. It provides a storage device.

Preferably, the charging mode converter connected to the terminal connector for switching the charging mode of the mobile terminal connected to the terminal connector under the control of the controller; And a terminal mode converter connected to the terminal connector to switch the terminal mode of the portable terminal connected to the terminal connector under control of the controller. And further comprising:

Preferably, when the portable terminal and the personal computer are connected together, the controller includes a charging cable mode that functions as a power storage device and an external memory of the personal computer, or a USB cable mode that functions to transfer data between the power charging and connecting devices. It is characterized in that the mode selection switch for setting to operate in any one of.

On the other hand, the present invention is a storage device is provided with a memory for storing data therein and a terminal connector for connecting to a portable terminal and a PC connector for connecting to a personal computer, one side of the terminal connector and A bus switch connected through one bus line and connected to a memory unit through a memory line on the other side thereof; A second bus line fixedly connecting the PC connector and the memory line; A power supply line connecting the PC connector and the terminal connector to transfer power from a personal computer to the portable terminal; And a controller configured to control the bus switch so that the first bus line is selectively connected to the memory line. The control unit may detect whether the portable terminal is connected to the personal computer through the terminal connector and the PC connector, and control the connection state of the bus switch according to the detection state.

Preferably, the charging mode converter connected to the other side of the bus switch and connected to the terminal connector via the first bus line in accordance with the switching of the bus switch to switch the charging mode of the mobile terminal connected to the terminal connector; And a terminal mode converter connected to the terminal connector to switch the terminal mode of the portable terminal connected to the terminal connector under control of the controller. And further comprising:

On the other hand, the present invention is a storage device having a built-in memory for storing data and a terminal connector for connecting to a portable terminal and a PC connector for connecting to a personal computer, the terminal connector and the PC connector is fixed Bus lines to connect with; A bus switch having one side connected to the bus line and the other side connected to the memory unit through a memory line; A controller for controlling the bus switch to selectively connect a bus line to a memory line; It includes, The control unit detects whether the portable terminal and the personal computer is connected through the terminal connector and the PC connector, and provides a storage device characterized in that for controlling the connection state of the bus switch in accordance with the detection state.

Preferably, an open point connected to the other side of the bus switch and connected to the bus line in accordance with the switching of the bus switch; A terminal mode converter connected to the terminal connector to switch the terminal mode of the portable terminal connected to the terminal connector under the control of a controller; And further comprising:

On the other hand, according to another aspect of the invention, (a-1) the control unit monitors whether the portable terminal or personal computer is connected through the terminal connector and the PC connector; (b-1) When the personal computer is connected alone, the control unit controls the first bus switch to connect the second bus line connected to the PC connector and the memory line connected to the memory unit to move the inside of the personal computer into a memory available state. Setting; And (c-1) when the portable terminal is connected exclusively, the controller controls the second bus switch to connect the first bus line connected to the terminal connector and the memory line connected to the memory unit so that the portable terminal has a memory usable state. Setting a; It provides a device connection control method using a storage device comprising a.

Preferably, before the step (a-1), the step of setting the charging cable mode or USB cable mode in case the portable terminal and the personal computer are connected together according to the setting through the mode selection switch; And (d-1) when the portable terminal and the personal computer are connected together, controlling the first bus switch to connect the first bus line with a switch line connected to the second bus switch; And (e-1) controlling the second bus switch to connect the second bus line with the switch line; Including, characterized in that for the storage device to operate as a USB cable between the portable terminal and the personal computer.

Preferably, in the USB cable mode, the power transmitted from the personal computer is transferred to the portable terminal through a power line for fixedly connecting the PC connector and the terminal connector.

Preferably, before the step (a-1), the step of setting the charging cable mode or USB cable mode in case the portable terminal and the personal computer are connected together according to the setting through the mode selection switch; And (f-1) when the portable terminal and the personal computer are connected together, controlling the first bus switch and the second bus switch to disconnect the first bus line and the second bus line. ; And (g-1) charging power from the personal computer to the portable terminal through a power line connected between the PC connector and the terminal connector; Including the, characterized in that for the storage device to operate in a charging cable mode for charging the portable terminal the power supplied from the personal computer via the power line.

Preferably, in the charging cable mode, the second bus line and the memory line are connected to set the inside of the personal computer in a memory usable state.

On the other hand, the present invention, (a-2) the control unit monitors whether the portable terminal or the personal computer is connected through the terminal connector and the PC connector; (b-2) when the personal computer is connected exclusively, setting the inside of the personal computer to a memory usable state through a fixed connection between a second bus line connected to the PC connector and a memory line connected to the memory unit; And (c-2) when the portable terminal is connected exclusively, the controller controls a bus switch to connect the first bus line connected to the terminal connector and the memory line connected to the memory unit to set the inside of the portable terminal in a memory usable state. Making; It provides a device connection control method using a storage device comprising a.

Preferably, (d-2) if the portable terminal and the personal computer are connected together, the control unit controls the bus switch to disconnect the first bus line and the second bus line; And (e-2) charging power from the personal computer to the portable terminal through a power line connected between the PC connector and the terminal connector; Including, characterized in that for the storage device to operate as a charging cable for charging the portable terminal the power supplied from the personal computer via the power line.

Preferably, in the charging cable operation, the memory of the personal computer is enabled through the second bus line and the memory line which are fixedly connected.

On the other hand, the present invention, (a-3) the control unit monitors whether the portable terminal or the personal computer is connected through the terminal connector and the PC connector; (b-3) if the personal computer is connected alone, connecting the bus line fixedly connecting the terminal connector and the PC connector to a memory line connected to the memory unit, and setting the inside of the personal computer in a memory usable state; And (c-3) setting the inside of the portable terminal to a memory usable state by connecting the bus line to the memory line when the portable terminal is connected alone; It provides a device connection control method using a storage device comprising a.

Preferably, (d-3) when the portable terminal and the personal computer are connected together, controlling the bus switch to disconnect the bus line from the memory line; And wherein the storage device operates as a USB cable between the portable terminal and the personal computer via a bus line.

Preferably, when the USB cable is operated, the power transmitted from the personal computer is transferred to the portable terminal through a power line for fixedly connecting the PC connector and the terminal connector.

According to the present invention, it is possible to connect the portable terminal and the personal computer individually, or the portable terminal and the personal computer can be connected together, and the internal memory can be used by simply changing the connection relationship of the bus switch according to the connection state of the device. It can be operated in various modes such as a memory cable, a USB cable capable of charging a small amount of power and transferring data between devices, and a charging cable capable of charging a large amount of power.

In addition, when the portable terminal and the personal computer are connected together, there is an effect that a large amount of power charging operation to the portable terminal through the personal computer is automatically performed.

In addition, when the portable terminal and the personal computer are connected together, there is an effect of automatically operating as a USB cable capable of charging a small amount of power between the personal computer and the portable terminal and transferring data between the devices.

1 is a view for explaining an application method of a storage device according to the present invention.
2 is a block diagram illustrating an internal configuration of a storage device according to an embodiment of the present invention.
3 is a flowchart illustrating a device connection control method using a storage device according to an embodiment of the present invention.
4 is a block diagram illustrating an internal configuration of a storage device according to another exemplary embodiment of the present invention.
5 is a flowchart illustrating a device connection control method using a storage device according to another embodiment of the present invention.
6 is a block diagram illustrating an internal configuration of a storage device according to still another embodiment of the present invention.
7 is a flowchart illustrating a device connection control method using a storage device according to still another embodiment of the present invention.

Hereinafter, exemplary embodiments of a storage device and a device connection control method using the same will be described in detail with reference to the accompanying drawings.

First, a connection between a storage device and various devices according to the present invention will be described with reference to FIG. 1. 1 is a view for explaining an application method of a storage device according to the present invention.

Referring to FIG. 1, the storage device 100 according to the present invention may have a built-in memory for storing data therein so that the storage device 100 may function as an external memory device of the corresponding mobile terminal 200 when connected to the mobile terminal 200 alone. have. In addition, the storage device 100 according to the present invention may function as an external memory device of the personal computer 300 when connected to the personal computer 300 alone.

In addition, in the storage device 100 according to the present invention, the portable terminal 200 and the personal computer 300 may be connected together. In this case, a large amount of power charging from the personal computer 300 to the portable terminal 200 and the personal computer are performed. It can operate in a charging cable mode that functions as an external memory of 300 or as a USB cable mode capable of charging a small amount of power from the personal computer 300 to the portable terminal 200 and transferring data between these devices.

The portable terminal 200 may include a personal digital cellular (PDC) phone, a personal communication service (PCS) phone, a personal handyphone system (PHS) phone, a CDMA-2000 (1X, 3X) phone, a wideband CDMA (WCDMA) phone, Portable devices that may include communication functions such as Dual Band / Dual Mode phones, Global Standard for Mobile (GSM) phones, Mobile Broadband System (MBS) phones, Digital Multimedia Broadcasting (DMB) phones, mobile phones, etc. IMT-2000 (International Mobile Telecommunication-2000), which provides mobile terminals such as PDAs (Personal Digital Assistants), WiBro terminals, MP3 players, MD players, and international roaming services and extended mobile communication services. It includes all kinds of handheld-based wireless communication devices such as terminals, and in particular, the mobile terminal 200 is an intelligent terminal that adds computer support functions such as internet communication and information retrieval to a mobile phone. It is most desirable to be a smart phone that can install and utilize applications.

In addition, the connection between the mobile terminal 200 and the storage device 100 may be connected by a micro 5 pin (AB type) or a mini 5 pin (AB type) having a pin structure of VBUS, D-, D +, ID and GND. The connection between the storage device 100 and the personal computer 300 may be connected by USB (type A) having pin structures of VBUS, D-, D +, and GND.

Now, a storage device and a device connection control method using the same according to an embodiment of the present invention will be described in detail with reference to FIG. 2. 2 is a block diagram illustrating an internal configuration of a storage device according to an embodiment of the present invention.

Referring to FIG. 2, the storage device 100 according to an embodiment of the present invention may include a memory unit 110 for storing data, a terminal connector 115 for connecting to the portable terminal 200, and a personal computer 300. PC connector 118 for connection with the controller, first bus switch 111 and second bus switch 112 for selecting an internal data transfer path, and operations of the bus switches 111 and 112 and the terminal connector 115 And a mode selection switch 114 for adjusting an operation mode of the storage device 100.

The storage device 100 according to an embodiment of the present invention functions as an external memory device of the portable terminal 200 when connected to the portable terminal 200 alone, and when connected to the personal computer 300 alone. It functions as an external memory device of the computer 300, and when the portable terminal 200 and the personal computer 300 are connected together, a large amount of power charging from the personal computer 300 to the portable terminal 200 and the personal computer 300 are performed. Or a USB cable mode capable of charging a small amount of power from the personal computer 300 to the portable terminal 200 and transferring data between these devices.

To this end, the storage device 100 according to an embodiment of the present invention switches the charging mode converter 116 for switching the charging mode of the connected portable terminal 200 and the terminal mode of the connected portable terminal 200. It further comprises a terminal mode converter 117 to make.

In this case, the charging mode converter 116 may switch the connected portable terminal 200 to two charging modes of a charging on mode or a normal mode, and the control unit 113 may control the second control line. Receiving a charge mode control command through the (C2) to switch the state of the portable terminal 200 to either of the charging on mode and the normal mode. When operating in charge on, the D- and D + pins of the terminal connector 115 may be shorted with a resistance of 100 Ω or less to convert the mobile terminal 200 into a charge-on mode capable of charging a large amount. In operation, the D- and D + pins of the terminal connector 115 may be opened to convert the portable terminal 200 into a USB state capable of a small amount of charge.

In addition, the terminal mode converter 117 may switch the portable terminal 200 to be connected to two terminal modes of a host or a slave, and the terminal mode control command from the control unit 113 through the first control line C1. The mobile terminal 200 is switched to one of a host mode and a slave mode by receiving the signal. When operating as a host, the mobile terminal 200 can be switched to the host mode by connecting the ID pin of the terminal connector 115 to GND. When operating as a slave, the ID of the terminal connector 115 can be changed. By floating the pin, the portable terminal 200 can be switched to the slave mode.

Herein, when the terminal mode of the portable terminal 200 is switched to the host, the memory unit 110 of the storage device 100 can be accessed. In addition, when the terminal mode of the portable terminal 200 is switched to a slave, the state corresponds to a state enabling a large amount of power charging or a small amount of power charging according to the mode state of the charging mode converter 116. The storage device 100 will function.

In the storage device 100 having such a configuration, a power line P is connected between the PC connector 118 and the terminal connector 115 to transfer the power transmitted from the personal computer 300 to the portable terminal 200. .

In addition, a first bus line B1 for data transfer with the terminal connector 115 is connected to one side to the first bus switch 111, and a memory line M for data transfer with the memory unit 110 to the other side. ) And the switch line S for data transfer between the second bus switch 112 are connected, and the corresponding first bus switch 111 issues a switch control command from the controller 113 through the third control line C3. The first bus line B1 is selectively connected to any one of the memory line M and the switch line S.

Similarly, a second bus line B2 for data transfer with the PC connector 118 is connected to one side to the second bus switch 112, and a memory line M for data transfer with the memory unit 110 to the other side. ) And the switch line S for data transfer between the first bus switch 111 are connected, and the corresponding second bus switch 112 issues a switch control command from the controller 113 through the fourth control line C4. The second bus line B2 is selectively connected to one of the memory line M and the switch line S.

The controller 113 may recognize whether the portable terminal 200 is connected to the terminal connector 115 by being connected to the terminal connector 115 through the first detection line D1. In addition, the controller 113 may be connected to the PC connector 118 through the second detection line D2 to recognize whether the personal computer 300 is connected to the corresponding PC connector 118.

Here, the recognition of the mobile terminal 200 through the first detection line D1 of the control unit 113 determines whether the mobile terminal 200 is connected by recognizing a frame on the smartphone side in the corresponding terminal connector 115. It can be done.

In addition, the recognition of the personal computer 300 through the second detection line D2 of the control unit 113 recognizes the power since the power from the personal computer 300 is output through the diode of the power line P. FIG. Thus, it is possible to determine whether or not the personal computer 200 is connected.

When the portable terminal 200 and the personal computer 300 are connected to the storage device 100 together, the storage device 100 is charged with a large amount of power from the personal computer 300 to the portable terminal 200 and the personal computer ( Or a USB cable mode capable of charging a small amount of power from the personal computer 300 to the mobile terminal 200 and transferring data between these devices. It is possible to set through the mode selection switch 114.

That is, when the charging cable mode is set in preparation for the two devices connected together through the mode selection switch 114, the control unit 113 recognizes the connection of the two devices and according to the charging cable mode setting, the personal computer ( The internal configuration will be controlled so that the power from 300 is delivered in large quantities to the mobile terminal 200 and at the same time serves as an external memory of the personal computer 300.

On the contrary, if the USB cable mode is set in case two devices are connected together through the mode selection switch 114, the controller 113 recognizes the connection between the two devices and sets the personal computer (or the USB cable mode setting) according to the USB cable mode setting. The internal configuration will be controlled so that a small amount of power from the 300 is transmitted to the portable terminal 200 and data can be transferred between the personal computer 300 and the portable terminal 200.

The mode selection switch 114 may be provided in a form (eg, an external protrusion switch) that the user can manipulate by hand so that the user of the storage device 100 can directly select. In other cases, the mode selection switch 114 may be provided in a form that can be set by the computer (eg, switching setting value storage form) when the computer is connected. The controller 113 detects the state of the mode selection switch 114.

A device connection control method using a storage device according to an embodiment of the present invention described above will now be described in detail with reference to FIG. 3.

First, the storage device 100 operates in one of the charging cable mode and the USB cable mode in case the portable terminal 200 and the personal computer 300 are connected together according to the user's setting via the mode selection switch 114. The mode is set (S10).

In addition, the controller 113 determines whether the portable terminal 200 or the personal computer 300 is connected to the terminal connector 115 and the PC connector 118 through the first detection line D1 and the second detection line D2. Will be monitored.

Subsequently, the controller 113 determines whether the portable terminal 200 is detected through the first detection line D1 (S11), and if the portable terminal 200 is not detected, the second detection line D2. It is determined whether the personal computer 300 is detected through the (S12).

As a result of the determination in step S12, when the personal computer 300 is recognized, the controller 113 determines that the personal computer is in a single connection state, and the personal computer 300 is an internal memory unit of the storage device 100. In step S13, the internal memory is set to a memory available state of the personal computer that may exchange data with the user.

In the setting of the personal computer to the memory available state, the control unit 113 transmits a switch control command to the second bus switch 112 via the fourth control line C4, and the second bus line B2. ) Switches the state of the second bus switch 112 to the memory line M. FIG.

Accordingly, the personal computer 300 connected to the PC connector 118 may exchange data using the memory unit 110 of the storage device 100.

On the other hand, when the portable terminal 200 is recognized as a result of the determination in step S11, the controller 113 determines whether the personal computer 300 is detected through the second detection line D2 (S14). ).

As a result of the determination in step S14, when the personal computer 300 is not recognized, the controller 113 determines that the portable terminal is in a single connection state, and the portable terminal 200 is configured to store the internal memory of the storage device 100. The internal part is set to the memory available state of the mobile terminal capable of transmitting and receiving data through the unit 110 (S15).

In the setting of the portable terminal to the memory available state, first, the controller 113 transmits a charging mode control command to the charging mode converter 116 via the second control line C2 and connects the portable terminal 200. ) To normal mode. The control unit 113 transmits a terminal mode control command to the terminal mode converter 117 through the first control line C1 to switch the connected portable terminal 200 to the host. Accordingly, the portable terminal 200 can operate as a host capable of using the memory unit 110 of the storage device 100.

The controller 113 transmits a switch control command to the first bus switch 111 through a third control line C3 so that the first bus line B1 is connected to the memory line M. 1 The bus switch 111 is switched state.

Accordingly, the portable terminal 200 connected to the terminal connector 115 can exchange data using the memory unit 110 of the storage device 100.

On the other hand, when the personal computer 300 is recognized as a result of the determination of step S14, the controller 113 determines that the portable terminal and the personal computer are connected together, and the corresponding storage device 100 is currently in the portable terminal. In operation S16, it is determined whether the set operation mode is a charging cable mode or a USB cable mode in case the 200 and the personal computer 300 are connected together.

As a result of the determination in step S16, when the currently set operation mode is a USB cable mode, the controller 113 is a USB cable for transferring data between the connected personal computer 300 and the portable terminal 200. To set the inside so that the operation (S17).

In the setting of the USB cable mode, the control unit 113 first transmits a charging mode control command to the charging mode converter 116 via the second control line C2, thereby transferring the connected portable terminal 200 to the normal mode. To switch modes. The controller 113 transmits a terminal mode control command to the terminal mode converter 117 through the first control line C1 to switch the connected portable terminal 200 to a slave mode. As a result, the portable terminal 200 can operate as a slave of a USB cable.

The controller 113 transmits a switch control command to the first bus switch 111 through a third control line C3 so that the first bus line B1 is connected to the switch line S. 1 The bus switch 111 is switched state. In addition, the control unit 113 transmits a switch control command to the second bus switch 112 through a fourth control line C4 so that the second bus line B2 is connected to the switch line S. 2 bus switch 112 is switched state.

Accordingly, the portable terminal 200 connected to the terminal connector 115 and the personal computer 200 connected to the PC connector 118 can exchange data with each other through the corresponding storage device 100.

In addition, since a small amount of power is transferred from the personal computer 200 to the mobile terminal 200 through the power line P, a small amount of charge to the mobile terminal 200 can be simultaneously performed as a USB cable.

On the other hand, as a result of the determination in step S16, when the currently set operation mode is the charging cable mode, the control unit 113 is a charging mode to charge a large amount of power to the portable terminal 200 from the connected personal computer 300 The interior is set to allow the storage device 100 to operate (S18).

In the setting of the charging cable mode, the control unit 113 first transmits a charging mode control command to the charging mode converter 116 via the second control line C2 to charge on the connected portable terminal 200. The mode will be switched to mode. The controller 113 transmits a terminal mode control command to the terminal mode converter 117 through the first control line C1 to switch the connected portable terminal 200 to a slave mode. As a result, the portable terminal 200 can be operated as a slave for the charging operation.

The controller 113 transmits a switch control command to the first bus switch 111 through a third control line C3 so that the first bus line B1 is connected to the switch line S. 1 The bus switch 111 is switched state. In addition, the controller 113 transmits a switch control command to the second bus switch 112 through a fourth control line C4 so that the second bus line B2 is connected to the memory line M. 2 bus switch 112 is switched state.

In this case, since the personal computer 300 is connected to the memory unit 110 through the second bus line B2 and the memory line M, the corresponding storage device 100 is simultaneously charged with a large amount of personal computer 300. It can also function as an external memory for.

The control of the bus switch is for preventing the bus line connection between the portable terminal 200 and the personal computer 300 to be connected. Unlike the above-described control, the first bus line B1 is a memory line M It is also possible to allow the second bus line B2 to be connected to the switch line S.

Accordingly, the power from the personal computer 300 connected to the PC connector 118 is supplied to the portable terminal 200 in a large amount through the power line P to charge the portable terminal 200. Optionally, the storage device 100 also functions as an external memory for the personal computer 300.

A storage device and a device connection control method using the same according to another embodiment of the present invention will now be described in detail with reference to FIG. 4. 4 is a block diagram illustrating an internal configuration of a storage device according to another embodiment of the present invention.

According to another exemplary embodiment of the present invention, when the portable terminal 200 and the personal computer 300 are connected together, a large amount of power charging operation from the personal computer 300 to the portable terminal 200 is automatically performed.

Referring to FIG. 4, the storage device 100 according to another embodiment of the present invention may include a memory unit 120 for storing data, a terminal connector 123 for connecting to the portable terminal 200, and a personal computer 300. PC connector 126 for connection with the bus, a bus switch 121 for selecting an internal data transmission path, and a controller 122 for controlling operations of the bus switch 121 and the terminal connector 123. It is composed.

The storage device 100 according to another embodiment of the present invention functions as an external memory device of the portable terminal 200 when connected to the portable terminal 200 alone, and when connected to the personal computer 300 alone. It functions as an external memory device of the computer 300. When the portable terminal 200 and the personal computer 300 are connected together, a large amount of power is supplied from the personal computer 300 to the portable terminal 200. It can automatically operate as a charging cable that functions as an external memory for 300.

To this end, the storage device 100 according to another embodiment of the present invention switches the charging mode converter 124 for switching the charging mode of the connected portable terminal 200 and the terminal mode of the connected portable terminal 200. It further comprises a terminal mode converter 125 to make.

In this case, the charging mode converter 124 may convert the connected mobile terminal 200 into two charging modes of a charging on mode or a normal mode, depending on the selection of the bus switch 121. It is connected to the terminal connector 123, and when the connection with the terminal connector 123, the mobile terminal 200 is switched to the charging on mode. In this case, when the battery is turned on, the D- and D + pins of the terminal connector 115 may be shorted with a resistance of 100 Ω or less to convert the mobile terminal 200 into a chargeable charging mode. ), The D- and D + pins of the terminal connector 115 are opened to switch the portable terminal 200 to the normal mode.

In addition, the terminal mode converter 125 may switch the connected portable terminal 200 to two terminal modes of a host or a slave, and the terminal mode control command from the controller 122 through the first control line C1. The mobile terminal 200 is switched to one of a host mode and a slave mode by receiving the signal. When operating as a host, the mobile terminal 200 can be switched to the host mode by connecting the ID pin of the terminal connector 123 to GND, and when operating as a slave, the ID of the terminal connector 123 By floating the pin, the portable terminal 200 can be switched to the slave mode.

Herein, when the portable terminal 200 is switched to the host mode, the memory unit 120 of the storage device 100 can be accessed. In addition, when the terminal mode of the portable terminal 200 is switched to a slave, the state corresponds to a state enabling a large amount of power charging or a small amount of power charging according to the mode state of the charging mode converter 126. The storage device 100 will function.

In the storage device 100 having such a configuration, a power line P for transferring power from the personal computer 300 to the mobile terminal 200 is connected between the PC connector 126 and the terminal connector 123. .

In addition, the second bus line B2 connected to the PC connector 126 is fixedly connected to the memory line M of the memory unit 110.

In addition, the bus switch 121 has a first bus line B1 for data transfer with the terminal connector 123 connected to one side, and a memory line M for data transfer with the memory unit 110 on the other side. The third bus line B3 for connection with the charging mode converter 124 is connected, and the corresponding bus switch 121 receives a switch control command from the control unit 122 through the second control line C2 and then the first bus line B3. The first bus line B1 is selectively connected to one of the memory line M and the third bus line B3.

The controller 122 may be connected to the terminal connector 123 through the first detection line D1 to recognize whether the portable terminal 200 is connected to the terminal connector 126. In addition, the controller 122 may be connected to the PC connector 126 through the second detection line D2 to recognize whether the personal computer 300 is connected to the PC connector 126.

Here, the recognition of the mobile terminal 200 through the first detection line D1 of the controller 122 determines whether the mobile terminal 200 is connected by recognizing a frame on the smartphone side in the terminal connector 123. It can be done.

In addition, the recognition of the personal computer 300 through the second detection line D2 of the controller 122 recognizes the power since the power from the personal computer 300 is output through the diode of the power line P. FIG. Thus, it is possible to determine whether or not the personal computer 200 is connected.

A device connection control method using a storage device according to another embodiment of the present invention described above will now be described in detail with reference to FIG. 5.

The controller 122 determines whether the portable terminal 200 or the personal computer 300 is connected to the terminal connector 123 and the PC connector 126 through the first detection line D1 and the second detection line D2. Will be monitored.

Subsequently, the controller 122 determines whether the portable terminal 200 is detected through the first detection line D1 (S20), and if the portable terminal 200 is not detected, the second detection line D2. In step S21, it is determined whether the personal computer 300 is detected.

As a result of the determination in step S21, when the personal computer 300 is recognized, the controller 122 determines that the personal computer is in a single connection state, and the personal computer 300 is an internal memory unit of the storage device 100. In step S22, the internal memory is set to a memory available state of the personal computer that may exchange data.

The setting of the personal computer to the memory available state is automatically performed because the second bus line B2 connected to the PC connector 126 is fixedly connected to the memory line M of the memory unit 120. The personal computer 300 connected to the connector 126 may exchange data using the memory unit 120 of the storage device 100.

On the other hand, when the portable terminal 200 is recognized as a result of the determination in step S20, the controller 122 determines whether the personal computer 300 is detected through the second detection line D2 (S23). ).

As a result of the determination in step S23, when the personal computer 300 is not recognized, the controller 122 determines that the portable terminal is connected alone, and the portable terminal 200 determines that the internal memory of the storage device 100 is stored. The internal part is set to the memory available state of the portable terminal capable of transmitting and receiving data through the unit 120 (S24).

In the setting of the portable terminal to the memory available state, the controller 122 first transmits a terminal mode control command to the terminal mode converter 125 via the first control line C1, and connects to the portable terminal 200. ) To the host. Accordingly, the portable terminal 200 can operate as a host capable of using the memory unit 120 of the storage device 100.

The controller 122 transmits a switch control command to the bus switch 121 through the second control line C2 so that the first bus line B1 is connected to the memory line M. State 121).

Accordingly, the mobile terminal 200 connected to the terminal connector 123 may exchange data using the memory unit 120 of the storage device 100.

On the other hand, when the personal computer 300 is recognized as a result of the step S23, the controller 122 determines that the portable terminal and the personal computer are connected together, and the controller 122 automatically connects the personal In operation S25, the storage device 100 may be set to operate in a charging cable mode in which power supplied from the computer 300 is charged to the portable terminal 200.

In the automatic setting to the charging cable mode, the control unit 122 first transmits a switch control command to the bus switch 121 through the second control line C2, so that the first bus line B1 is charged. The bus switch 121 is switched state to be connected to the third bus line B3 connected to the converter 124. Accordingly, the charging mode converter 124 switches the connected portable terminal 200 to charging on mode. The controller 122 transmits a terminal mode control command to the terminal mode converter 125 through the first control line C1 to switch the connected portable terminal 200 to a slave mode.

Accordingly, power from the personal computer 300 connected to the PC connector 126 is supplied to the mobile terminal 200 through the power line P to automatically charge the mobile terminal 200 in bulk. . In addition, as the personal computer 300 and the portable terminal 200 are connected together, the connected personal computer 300 is connected to the memory unit 120 through the second bus line B2 fixedly connected to the memory line M. FIG. This makes it possible to use the storage device 100 as an external memory.

According to another exemplary embodiment of the present invention, when the portable terminal 200 and the personal computer 300 are connected together, a large amount of charging operation and an external memory function for the personal computer 300 are automatically performed.

A storage device and a device connection control method using the same according to another embodiment of the present invention will now be described in detail with reference to FIG. 6. 6 is a block diagram illustrating an internal configuration of a storage device according to still another embodiment of the present invention.

In still another embodiment of the present invention, when the portable terminal 200 and the personal computer 300 are connected together, a USB cable operation (including a small amount of charging operation) is automatically performed.

Referring to FIG. 6, the storage device 100 according to another embodiment of the present invention may include a memory unit 130 for storing data, a terminal connector 133 for connecting to the portable terminal 200, and a personal computer 300. PC connector 135 for connection with the control panel, a bus switch 131 for selecting an internal data transmission path, and a controller 132 for controlling operations of the bus switch 131 and the terminal connector 133. It is configured by.

The storage device 100 according to another embodiment of the present invention functions as an external memory device of the portable terminal 200 when connected to the portable terminal 200 alone, and corresponds to a personal computer 300 when connected to the personal computer 300 alone. It functions as an external memory device of the personal computer 300, and when the portable terminal 200 and the personal computer 300 are connected together, a small amount of power charging from the personal computer 300 to the portable terminal 200 and data between these devices are performed. It can operate as a USB cable mode that can be transferred.

To this end, the storage device 100 according to another exemplary embodiment of the present invention further includes a terminal mode converter 134 for switching the terminal mode of the connected mobile terminal 200.

In this case, the terminal mode converter 134 may switch the connected portable terminal 200 to two terminal modes of a host or a slave, and the terminal mode control command from the controller 132 through the first control line C1. The mobile terminal 200 is switched to one of a charging host mode and a slave mode by receiving the received signal. When operating as a host, the mobile terminal 200 can be switched to the host mode by connecting the ID pin of the terminal connector 133 to GND. When operating as a slave, the ID of the terminal connector 133 can be changed. By floating the pin, the portable terminal 200 can be switched to the slave mode.

Herein, when the terminal mode of the mobile terminal 200 is switched to the host, the memory unit 130 of the storage device 100 can be accessed. In addition, when the terminal mode of the portable terminal 200 is switched to a slave, it is possible to charge by an external power source, and the storage device 100 functions as a USB cable having the connected personal computer 300 as a host.

In the storage device 100 having such a configuration, a power line P for transferring the power transmitted from the personal computer 300 to the portable terminal 200 is connected between the PC connector 135 and the terminal connector 133. .

In addition, the PC connector 135 and the terminal connector 133 are fixedly connected through the bus line (B).

In addition, the bus switch 131 has a bus line B for data transmission with the terminal connector 133 and the PC connector 135 connected to one side, and a memory line for data transmission with the memory unit 130 on the other side. (M) and the open point O are connected, and the corresponding bus switch 131 receives a switch control command from the control unit 132 through the second control line C2 and stores the bus line B as a memory line ( Selectively connected to either M) and the open point (O). In this case, when the bus line B is connected to the open point O, the bus line B is disconnected from the memory line M, as shown in the drawing, so that the terminal connector 133 and the PC connector 135 are connected. To be used for data transfer.

The controller 132 may be connected to the terminal connector 133 through the first detection line D1 to recognize whether the mobile terminal 200 is connected to the terminal connector 133. In addition, the controller 132 may be connected to the PC connector 135 through the second detection line D2 to recognize whether the personal computer 300 is connected to the PC connector 135.

Here, the recognition of the mobile terminal 200 through the first detection line D1 of the controller 132 determines whether the mobile terminal 200 is connected by recognizing a frame on the smartphone side in the corresponding terminal connector 133. It can be done.

In addition, the recognition of the personal computer 300 through the second detection line D2 of the controller 132 recognizes the power since the power from the personal computer 300 is output through the diode of the power line P. FIG. Thus, it is possible to determine whether or not the personal computer 200 is connected.

A device connection control method using a storage device according to still another embodiment of the present invention described above will be described in detail with reference to FIG. 7.

The controller 132 determines whether the portable terminal 200 or the personal computer 300 is connected to the terminal connector 133 and the PC connector 135 through the first detection line D1 and the second detection line D2. Will be monitored.

Subsequently, the controller 132 determines whether the portable terminal 200 is detected through the first detection line D1 (S30), and if the portable terminal 200 is not detected, the second detection line D2. In step S31, it is determined whether the personal computer 300 has been detected.

As a result of the determination in step S31, when the personal computer 300 is recognized, the controller 132 determines that the personal computer is in a single connection state, and the personal computer 300 is an internal memory unit of the storage device 100. In step S32, the internal memory is set to a memory available state of the personal computer capable of transmitting and receiving data.

In the setting of the personal computer in the memory available state, the control unit 133 transmits a switch control command to the bus switch 131 via the second control line C2, so that the bus line B is a memory line. The bus switch 131 is switched state to be connected to (M).

Accordingly, the personal computer 300 connected to the PC connector 135 may exchange data using the memory unit 130 of the storage device 100.

On the other hand, when the portable terminal 200 is recognized as a result of the determination in step S30, the controller 132 determines whether the personal computer 300 is detected through the second detection line D2 (S33). ).

As a result of the determination in step S33, when the personal computer 300 is not recognized, the controller 132 determines that the portable terminal is connected alone, and the portable terminal 200 determines that the internal memory of the storage device 100 is stored. Through the unit 130, the internal setting is set to the memory available state of the mobile terminal capable of transmitting and receiving data (S34).

In the setting of the portable terminal to the memory available state, first, the controller 132 transmits a terminal mode control command to the terminal mode converter 134 through the first control line C1, and is connected to the portable terminal 200. ) To the host. Accordingly, the portable terminal 200 can operate as a host that can use the memory unit 130 of the storage device 100.

The control unit 132 transmits a switch control command to the bus switch 131 through the second control line C2 so that the bus line B is connected to the memory line M. Will cause a state transition.

Accordingly, the portable terminal 200 connected to the terminal connector 133 can exchange data using the memory unit 130 of the storage device 100.

On the other hand, when the personal computer 300 is recognized as a result of the step S33, the controller 132 determines that the portable terminal and the personal computer are connected together, and the controller 132 automatically connects the personal As the USB cable for data transfer between the computer 300 and the portable terminal 200, the internal device is set to operate the storage device 100 (S25).

In the setting of the USB cable mode, the control unit 132 first transmits a terminal mode control command to the terminal mode converter 134 through the first control line C1 and slaves the connected portable terminal 200. To switch modes. As a result, the portable terminal 200 can operate as a slave of a USB cable.

In addition, the controller 132 transmits a switch control command to the bus switch 131 through a second control line C2 so that the bus line B is connected to the open point O. Will cause a state transition.

Accordingly, the portable terminal 200 connected to the terminal connector 133 and the personal computer 200 connected to the PC connector 135 through the bus line B fixedly connected to each other through the corresponding storage device 100. You can give and receive.

In addition, since a small amount of power is transferred from the personal computer 200 to the mobile terminal 200 through the power line P, a small amount of charge to the mobile terminal 200 can be simultaneously performed as a USB cable.

In another embodiment of the present invention, when the portable terminal 200 and the personal computer 300 are connected together, the USB cable operation is automatically performed.

As described above, an optimal embodiment has been disclosed in the drawings and specification. Although specific terms have been employed herein, they are used for purposes of illustration only and are not intended to limit the scope of the invention as defined in the claims or the claims. Therefore, those skilled in the art will appreciate that various modifications and equivalent embodiments are possible without departing from the scope of the present invention. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

100: storage device 110, 120, 130: memory
113, 122, 132: control unit 115, 123, 133: terminal connector
118, 126, 135: PC connector 200: mobile terminal
300: personal computer

Claims (16)

A storage device having a memory for storing data therein and having a terminal connector for connecting to a mobile terminal and a PC connector for connecting to a personal computer,
A first bus switch having one side connected to the terminal connector through a first bus line and the other side connected to a memory unit through a memory line;
A second bus switch having one side connected to the PC connector through a second bus line and the other side connected to a memory unit through a memory line;
A switch line connecting the other side of the first bus switch to the other side of the second bus switch;
A power supply line connecting the PC connector and the terminal connector to transfer power from a personal computer to the portable terminal; And
A control unit controlling the first bus switch to selectively connect the first bus line to a memory line or a switch line, and controlling the second bus switch to selectively connect the second bus line to a memory line or a switch line. ; Including;
And the controller detects whether the portable terminal is connected to the personal computer through the terminal connector and the PC connector, and controls the connection state of the first bus switch and the second bus switch according to the detected state.
The method of claim 1,
A charging mode converter connected to the terminal connector to switch the charging mode of the portable terminal connected to the terminal connector according to the control of the controller; And
A terminal mode converter connected to the terminal connector to switch the terminal mode of the portable terminal connected to the terminal connector under the control of a controller; The storage device further comprises.
3. The method according to claim 1 or 2,
When the portable terminal and the personal computer are connected together, the controller operates in one of a charging cable mode which functions as a power storage and an external memory of the personal computer, or a USB cable mode which functions as a power charging and data transfer device between the connected devices. And a mode selector switch configured to be set.
A storage device having a memory for storing data therein and having a terminal connector for connecting to a mobile terminal and a PC connector for connecting to a personal computer,
A bus switch having one side connected to the terminal connector through a first bus line and the other side connected to a memory unit through a memory line;
A second bus line fixedly connecting the PC connector and the memory line;
A power supply line connecting the PC connector and the terminal connector to transfer power from a personal computer to the portable terminal; And
A controller for controlling the bus switch to selectively connect a first bus line to a memory line; Including;
And the controller detects whether the portable terminal is connected to the personal computer through the terminal connector and the PC connector, and controls the connection state of the bus switch according to the detection state.
5. The method of claim 4,
A charge mode converter connected to the other side of the bus switch and connected to the terminal connector through a first bus line to switch the charging mode of the mobile terminal connected to the terminal connector according to the switching of the bus switch; And
A terminal mode converter connected to the terminal connector to switch the terminal mode of the portable terminal connected to the terminal connector under the control of a controller; The storage device further comprises.
A storage device having a memory for storing data therein and having a terminal connector for connecting to a mobile terminal and a PC connector for connecting to a personal computer,
A bus line for fixedly connecting the terminal connector and the PC connector;
A bus switch having one side connected to the bus line and the other side connected to the memory unit through a memory line;
A controller for controlling the bus switch to selectively connect a bus line to a memory line; Including;
And the controller detects whether the portable terminal is connected to the personal computer through the terminal connector and the PC connector, and controls the connection state of the bus switch according to the detection state.
The method according to claim 6,
An open point connected to the bus switch, the bus line being connected according to the switching of the bus switch to disconnect the bus line and the memory line so as to transmit data between the terminal connector and the PC connector;
A terminal mode converter connected to the terminal connector to switch the terminal mode of the portable terminal connected to the terminal connector under the control of a controller; The storage device further comprises.
(a-1) the control unit monitoring whether the portable terminal or the personal computer is connected through the terminal connector and the PC connector;
(b-1) When the personal computer is connected alone, the control unit controls the first bus switch to connect the second bus line connected to the PC connector and the memory line connected to the memory unit to move the inside of the personal computer into a memory available state. Setting; And
(c-1) When the portable terminal is connected exclusively, the controller controls the second bus switch to connect the first bus line connected with the terminal connector and the memory line connected with the memory unit to move the inside of the portable terminal into a memory available state. Setting; Device connection control method using a storage device comprising a.
The method of claim 8,
Before step (a-1),
Setting the charging cable mode or the USB cable mode in case the portable terminal and the personal computer are connected together according to the setting through the mode selection switch; More,
(d-1) when the portable terminal and the personal computer are connected together, controlling the first bus switch to connect the first bus line with a switch line connected to the second bus switch; And
(e-1) the control unit controlling the second bus switch to connect the second bus line with the switch line; Including,
And the storage device operates as a USB cable between the portable terminal and the personal computer.
The method of claim 8,
Before step (a-1),
Setting the charging cable mode or the USB cable mode in case the portable terminal and the personal computer are connected together according to the setting through the mode selection switch; More,
(f-1) when the portable terminal and the personal computer are connected together, controlling the first bus switch and the second bus switch to disconnect the first bus line and the second bus line; And
(g-1) charging power from the personal computer to the portable terminal through a power line connected between the PC connector and the terminal connector; Including,
And operating the storage device in a charging cable mode for charging the portable terminal with power supplied from a personal computer through a power line.
The method of claim 10,
And in the charging cable mode, the second bus line and the memory line are connected to set the inside of the personal computer in a memory usable state.
(a-2) the control unit monitoring whether the portable terminal or the personal computer is connected through the terminal connector and the PC connector;
(b-2) when the personal computer is connected exclusively, setting the inside of the personal computer to a memory usable state through a fixed connection between a second bus line connected to the PC connector and a memory line connected to the memory unit; And
(c-2) When the portable terminal is connected exclusively, the controller controls a bus switch to connect the first bus line connected to the terminal connector and the memory line connected to the memory unit to set the inside of the portable terminal in a memory usable state. step; Device connection control method using a storage device comprising a.
13. The method of claim 12,
(d-2) if the portable terminal and the personal computer are connected together, controlling the bus switch to disconnect the first bus line from the second bus line; And
(e-2) charging power from the personal computer to the portable terminal through a power line connected between the PC connector and the terminal connector; Including,
And the storage device operates as a charging cable for charging the portable terminal with the power supplied from the personal computer via the power line.
The method of claim 13,
In the charging cable operation, the memory connection of the personal computer is enabled through the second bus line and the memory line which are fixedly connected.
(a-3) the control unit monitoring whether the portable terminal or the personal computer is connected through the terminal connector and the PC connector;
(b-3) if the personal computer is connected alone, connecting the bus line fixedly connecting the terminal connector and the PC connector to a memory line connected to the memory unit, and setting the inside of the personal computer in a memory usable state; And
(c-3) setting the inside of the portable terminal to a memory usable state by connecting the bus line to a memory line when the portable terminal is connected alone; Device connection control method using a storage device comprising a.
16. The method of claim 15,
(d-3) if the portable terminal and the personal computer are connected together, controlling the bus switch to disconnect the bus line from the memory line; Including;
And the storage device operates as a USB cable between the portable terminal and the personal computer via a bus line.

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