WO2016154811A1

WO2016154811A1 - Removable storage apparatus having otg function

Info

Publication number: WO2016154811A1
Application number: PCT/CN2015/075275
Authority: WO
Inventors: 周正贤
Original assignee: 周正贤
Priority date: 2015-03-27
Filing date: 2015-03-27
Publication date: 2016-10-06

Abstract

The present invention relates to the technical field of data storage. Specifically provided is a removable storage apparatus having an OTG function, comprising an OTG controller having an OTG function, a memory electrically connected to the OTG controller, and a first data connector and a second data connector electrically connected to the OTG controller, wherein the interface of at least one connector of the first data connector and the second data connector is a USB Type C interface. The removable storage apparatus in the present invention has an OTG function, and can be connected to a mobile terminal device via a USB type C interface and transmit data, so as to realize plug and play, without installing any software.

Description

Removable storage device with OTG function

Technical field

The present invention relates to the field of storage technologies, and in particular to a removable storage device having an OTG function.

Background technique

Among the existing removable storage devices, the most common one is a USB flash drive. U disk, the full name of the USB flash drive, the English name is USB flash disk, is a micro-high-capacity mobile storage product that uses a USB interface without physical drives.

The full name of USB is Universal Serial Bus, which was jointly established by Intel, Compaq, International Business Machines Corporation (IBM), Microsoft (Microsoft) and other companies in 1994. A data transmission bus is proposed for standardizing data connection and communication between a computer and an external device.

With the development of USB technology, PCs (Personal Computers) and peripheral devices can easily connect various devices for data transmission through the USB bus, and exchange data under the control of the PC as the periphery of the PC. However, this convenient exchange method, once left the PC, can not operate with the USB port between the devices, because no slave device can act as a host like a PC.

OTG is the abbreviation of On-The-Go. It is a technology developed on the basis of USB technology. It makes the USB device free from the limitations of the original master-slave architecture and realizes the end-to-end transmission mode.

At present, on small portable devices such as mobile phones, tablets, and cameras, due to volume reasons, it is not possible to set a standard size USB type A (standard A) interface like a desktop computer or a notebook computer, but only has a small interface area. Micro USB interface (mini USB interface). Nowadays, more and more portable devices with micro USB interface support traditional U disk to exchange data with OTG cable. One end of OTG cable is connected with USB type A interface of U disk, and the other end of OTG cable is connected with The micro USB interface on the device such as a mobile phone is connected, so that data can be exchanged between the micro USB portable device and the USB flash drive. However, once the OTG cable is removed, data exchange between the conventional U disk and the mobile phone cannot be performed, and the OTG cable is inconvenient to carry, which also causes inconvenience to the user.

Therefore, it is necessary to provide a removable storage device that is more convenient to use and has an OTG function.

Summary of the invention

It is an object of the present invention to provide a removable storage device having an OTG function to solve the above problems.

The OTG-enabled removable storage device provided by the embodiment of the present invention includes: an OTG controller having an OTG function, a memory electrically connected to the OTG controller, and a first data connection electrically connected to the OTG controller The header and the second data connector, the interface of the first data connector and the at least one connector of the second data connector is a USB Type C interface.

In one embodiment, the OTG-enabled removable storage device further includes a circuit board, and the OTG controller, the memory, the first data connector, and the second data connector respectively Electrically connected to the circuit board, the OTG controller and the memory are disposed on the circuit board.

In one embodiment, the OTG-enabled removable storage device further includes a housing including a first opening and a second opening, the housing enclosing the circuit board, an OTG controller, a memory, a first data connector and an interface of the second data connector, the interface of the first data connector being exposed outside the housing by the first opening, and the interface of the second data connector being connected by the second opening Exposed to the outside of the outer casing.

In one embodiment, the housing further includes a first rubber plug and a second rubber plug, the first rubber plug fixing the first data connector to the first opening, the second A rubber plug secures the second data connector to the second opening.

In one embodiment, the OTG-enabled removable storage device further includes a first cap and a second cap, the first cap enclosing the first data on the first opening An interface of the connector is wrapped in the first cap, and the second cap is sleeved on the second opening to enclose the interface of the second data connector in the second cap.

In one embodiment, the interface of the first data connector is a USB type A interface, and the interface of the second data connector is a USB Type C interface.

In one embodiment, the interface of the first data connector is a mini USB, and the interface of the second data connector D is a USB Type C interface.

In one embodiment, the removable device further includes a third data connector, the interface of the third data connector is an IEEE1394 interface, a wireless Bluetooth interface, an IrDA interface, a HomeRF interface, an IEEE 802.11a interface, or IEEE 802.11b interface.

In one embodiment, the interface of the first data connector is an IEEE1394 interface, a wireless Bluetooth interface, an IrDA interface, a HomeRF interface, an IEEE 802.11a interface, or an IEEE 802.11b interface, and the second data connector The interface is a USB Type C interface.

The beneficial effects achieved by the invention:

The removable storage device provided by the present invention is a dual interface removable storage device having an OTG function and having at least one USB type C interface. The removable storage device of the present invention can connect with a small mobile terminal device such as a mobile phone through a USB type C interface and transmit data, thereby realizing plug and play, and can directly access data, photos and videos in the mobile terminal device without installing any software. The data is transferred and backed up; the data on the removable storage device of the present invention can also be directly read by the mobile terminal device, which is extremely convenient and practical. In addition, since the USB type C interface is a high-speed miniaturized USB standard interface designed according to the USB 3.1 specification, it has 12 connection terminals on the upper and lower sides for high-speed data transmission and power supply. Therefore, the removable storage device provided by the present invention can be inserted in the forward and reverse directions, and the risk of damaging the data connector or the mobile terminal device interface can be reduced.

DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments will be briefly described below. It should be understood that the following drawings show only certain embodiments of the present invention, and therefore It should be seen as a limitation on the scope, and those skilled in the art can obtain other related drawings according to these drawings without any creative work.

1 is a schematic block diagram of a removable storage device with an OTG function according to an embodiment of the present invention;

2 is a schematic diagram showing the structural relationship between an OTG controller, a memory, a first data connector, a second data connector, and a circuit board of a removable storage device having an OTG function in an embodiment;

3 is a schematic diagram showing the structural relationship between an OTG controller, a memory, a first data connector, a second data connector, and a circuit board at another viewing angle;

4 is a schematic perspective structural view of a USB Type C interface used in a removable storage device with an OTG function according to an embodiment of the present invention;

Figure 5 is a front elevational view showing the connection terminal of the USB Type C interface of Figure 4;

6 is a schematic exploded perspective view of a removable storage device having an OTG function in another embodiment;

Figure 7 is an exploded view of the removable storage device having the OTG function of Figure 6;

FIG. 8 is a perspective view showing the structure of the removable storage device having the OTG function of FIG. 6.

Numbers in Figures 1 to 8:

Removable storage device 100; OTG controller 110; memory 120; first data connector 130; second data connector 140; PCB circuit board 150; upper layer from left to right first connection terminal A1; upper layer from left to right The twelfth connection terminal A12; the lower layer from the right to the left first connection terminal B1; the lower layer from the right to the left twelfth connection terminal B12; the outer casing 160; the first opening 161; the second opening 162; the first rubber plug 163; a second rubber plug 164; a first cap 170; and a second cap 180.

detailed description

The present invention will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings.

1 is a block diagram of a removable storage device with an OTG function according to an embodiment of the present invention. It should be noted that the connection relationship between the modules in FIG. 1 is for the purpose of clearly explaining the interaction and control process thereof, and therefore should be regarded as a logical connection relationship, and should not be limited to physical connections.

Referring to FIG. 1 , the OTG-capable removable storage device 100 includes: an OTG controller 110 , a memory 120 , a first data connector 130 , a second data connector 140 , and a printed circuit board (Printed Circuit Board). Board) 150. The first data connector 130 and the second data connector 140 are electrically connected to the OTG controller 110 and the memory 120, and the first data connector 130 is connected to the second data. The interface of one of the headers 140 is a USB Type C interface.

Specifically, the OTG controller 110, the memory 120, the first data connector 130, and the second data connector 140 are electrically connected to the PCB circuit board 150, and the OTG controller 110 and the memory 120 are carried on the PCB circuit. On board 150. Thus, the OTG controller 110, the memory 120, the first data connector 130, the second data connector 140, and the PCB circuit board 150 are electrically connected to each other to form a removable storage device having an OTG function.

Specifically, the OTG controller 110 is a controller chip with a USB OTG function, and can control access of the memory 120 by other possible components.

The memory 120 is used to store data such as text files, pictures, video, program code, and the like. Memory 120 may include high speed random access memory and may also include non-volatile memory such as one or more magnetic storage devices, flash memory, or other non-volatile solid state memory. The flash memory may be a memory card, and may also include internal and external storage for a card with a SD card (Secure Digi Memory Card) or a TF (TransFLash or Micro SD) card. Also It is a small-sized memory chip such as an eMMC (Embedded Multi Media Card) with a storage function. The specific implementation of the present invention is not limited thereto.

The first data connector 130 and the second data connector 140 are used to couple an external device to the OTG controller 110 and the memory 120, that is, for connection with an external device. Specifically, the first data connector 130 and the second data connector 140 are respectively connected to external devices having the same standard interface through a standard interface.

The external device may be a PC, or may be a variety of mobile terminal devices with OTG functions, including an OTG-enabled smart phone, a tablet computer, an e-book reader, and an MP3 player (Moving Picture Experts Group Audio Layer III, dynamic). The video expert compresses the standard audio layer 3), MP4 (Moving Picture Experts Group Audio Layer IV) player, laptop portable computer, vehicle terminal, camera, and the like.

Referring to FIG. 2 and FIG. 3 , in a specific embodiment, the first data connector 130 and the second data connector 140 may be electrically connected to the OTG controller 110 and the memory 120 soldered on the PCB circuit board 150 . Connect to each other. When the first data connector 130 or the second data connector 140 is connected to a PC or an OTG-capable mobile terminal device, functions such as file, picture, video and audio sharing, and data transmission and storage in the memory can be realized.

In the embodiment of the present invention, the interface between the first data connector 130 and the at least one connector of the second data connector 140 is a USB Type C interface, that is, an interface that satisfies the USB Type-C specification. The USB Type-C specification is included in the USB 3.1 specification, and the USB 3.1 data transfer rate can be increased to 10 Gbps. The USB Type-C specification has the following four characteristics: 1. Small size, similar to the existing USB 2.0micro-B; 2. USB Type-C supports power charging capability; Scalability, USB Type-C design will support the performance of future USB 4.0; 4. Usability: Both front and back can be inserted, users no longer need to distinguish between front and back, it is easier to insert the interface.

Referring to FIG. 4 and FIG. 5, in general, the USB Type C interface has at least 24 connection terminals (pin pins), and FIG. 5 shows the upper and lower connection terminals (pins), and A1 to A12 respectively indicate that the upper layer is from left to right. Right first to twelfth connection terminals (only the first and twelfth connection terminals of the upper layer are marked in Fig. 5), and B1 to B12 indicate the first to twelfth connections from the right to the left. Terminal (only the first connection terminal and the twelfth connection terminal of the lower layer are indicated in Fig. 5). The USB Type C interface includes at least four power terminals (the fourth and ninth connection terminals on the upper layer and the fourth and ninth connection terminals on the lower layer) and four ground terminals (the first and the second connection terminals on the upper layer and the first and second connection terminals on the lower layer) 12 connection terminals), twelve tracking terminals (upper 2nd, 3rd, 6th, 7th, 10th, 11th connection terminals and lower layer 2nd, 3rd, 6th, 7th, 10th, 11th connection terminals), two options The terminal (the fifth connection terminal on the upper layer and the fifth connection terminal on the lower layer) and the two retention terminals (the eighth connection terminal on the upper layer and the eighth connection terminal on the lower layer).

As can be seen from Figure 5, the USB Type C interface has the opposite order of the upper and lower terminals. Therefore, whether it is being inserted or reversed, the data connection is the same, and it can support the OTG function and also has USB Type-C. High-speed data transmission between mobile terminal devices, and the size of the USB Type C interface is small, so that it is extremely convenient and practical, which is also the biggest feature of the removable storage device in the present invention.

In the present invention, preferably, the interface of the second data connector 140 is a USB Type C interface, and the interface of the first data connector 130 is a USB Type-A interface. During use, data transmission and storage can be performed by the first data connector 130 with the PC and related devices. And connecting with the second data connector 140 through the OTG controller 110 to implement data of the mobile terminal device Data transfer and exchange between PCs. That is to say, the removable storage device of the present invention can perfectly combine the USB Type C interface and the USB drive, thereby interconnecting the PC and the OTG storage device with the USB Type C interface, sharing data and transmitting data, An additional OTG cable is required.

In other embodiments, the interface of the first data connector 130 may also be a universal interface such as an IEEE 1394 interface, a wireless Bluetooth interface, an IrDA interface, a HomeRF interface, an IEEE 802.11a interface, or an IEEE 802.11b interface.

Of course, the interface of the first data connector 130 is a USB Type C interface, and the interface of the second data connector 140 is a standard A interface. The specific implementation of the present invention is not limited thereto.

It can be understood that, in addition to the foregoing first data connector 130 and the second data connector 140, the OTG-capable removable storage device 100 provided by the present invention may further include a data connector having other common interfaces (third data). A connector, such as an EEE1394 interface, a wireless Bluetooth interface, an IrDA interface, a HomeRF interface, an IEEE 802.11a interface, or an IEEE 802.11b interface, to facilitate interaction with different types of interfaces.

Further, in order to facilitate the user to use and carry, and to protect the internal components, referring to FIG. 6 and FIG. 7 , the OTG-capable removable storage device 100 may further include a casing 160 . The housing 160 is used to cover the OTG controller 110, the memory 120, the first data connector 130, the second data connector 140, and the PCB circuit board 150.

The outer casing 160 may have a shape similar to a U disk. For example, the outer casing 160 can be a hollow cylindrical tubular structure. Both ends of the outer casing 160 each include an opening (a first opening 161 and a second opening 162). The interface of the first data connector 130 can be through the first opening The 161 is exposed outside the outer casing 160, and the interface of the second data connector 140 can be exposed outside the outer casing 160 by the second opening 162.

Further, the outer casing 16 may further include a first rubber plug 163 and a second rubber plug 164, the first rubber plug 163 fixing the first data connector 130 to the first opening 161 to prevent Looseness occurs during use. Likewise, the second rubber plug 164 secures the second data connector 140 to the second opening 162.

Further, the OTG-enabled removable storage device 100 further includes a first cap 170 and a second cap 180. The first cap 170 is sleeved on the first opening 161 to cover the interface of the first data connector 130 in the first cap 170, and the second cap 180 is sleeved on the second opening 162 to connect the second data connector 140. The interface is wrapped within the second cap 180.

That is, the OTG controller 110, the memory 120, the first data connector 130, the second data connector 140, and the PCB circuit board 150 may be assembled into a whole through the outer casing 160, the first rubber plug 163, and the second rubber plug 164. The removable storage device shown in FIG. 6 is directly used by the user. When the user does not need to use, the first cap 170 and the second cap 180 may be covered as shown in FIG. 8 to protect the first data connector. The interface of 130 and second data connector 140 is not damaged or contaminated.

When the storage capacity of the mobile terminal device with the USB Type C interface is insufficient, the removable storage device provided by the present invention can be plug and play, and the data of the mobile terminal device can be transferred without installing any software. Storage and backup; data on the removable storage device can also be displayed through a mobile terminal device having a USB Type C interface and supporting OTG function, and the data sharing of the data is perfectly presented.

In summary, the OTG-enabled removable storage device provided by the present invention is a dual-interface removable storage device having an OTG function and having at least one USB type C interface. This hair The mobile storage device of the Ming can be connected to a small mobile terminal device such as a mobile phone through a USB type C interface and transmit data, thereby realizing plug and play, and can be used for data, photos, videos, etc. in the mobile terminal device without installing any software. The data is transferred and backed up; the data on the removable storage device of the present invention can also be directly read by the mobile terminal device, which is extremely convenient and practical. In addition, since the USB type C interface is a high-speed miniaturized USB standard interface designed according to the USB 3.1 specification, it has 12 connection terminals on the upper and lower sides for high-speed data transmission and power supply. Therefore, the removable storage device provided by the present invention can be inserted in the forward and reverse directions, and the risk of damaging the data connector or the mobile terminal device interface can be reduced.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

A removable storage device with an OTG function, comprising:

An OTG controller having an OTG function, a memory electrically connected to the OTG controller, and a first data connector and a second data connector electrically connected to the OTG controller, the first data connector and the The interface of at least one of the second data connectors is a USB Type C interface.
The removable storage device with OTG function according to claim 1, further comprising a circuit board, wherein the OTG controller, the memory, the first data connector and the second data connector are electrically connected to the device In the circuit board, the OTG controller and the memory are disposed on the circuit board.
The removable storage device with OTG function according to claim 1, wherein the removable storage device further comprises a casing, the casing comprising a first opening and a second opening, the casing covering the circuit a board, an OTG controller, a memory, a first data connector, and a second data connector, the interface of the first data connector being exposed outside the housing by the first opening, the second data connector The interface is exposed by the second opening to the outside of the housing.
The removable storage device with OTG function according to claim 3, wherein the outer casing further comprises a first rubber plug and a second rubber plug, the first rubber plug fixing the first data connector The second rubber plug secures the second data connector to the second opening at the first opening.
The removable storage device with OTG function according to claim 3, wherein the removable storage device further comprises a first cap and a second cap, the first cap sleeve Encapsulating an interface of the first data connector in the first cap on the first opening, and clamping the second cap on the second opening to connect the second data connector The interface is wrapped in the second cap body.
The removable storage device with OTG function according to claim 1, wherein the interface of the first data connector is a USB type A interface, and the interface of the second data connector is a USB Type C interface.
The removable storage device according to claim 1, wherein the interface of the first data connector is a mini USB, and the interface of the second data connector is a USB Type C interface.
The removable storage device according to claim 6 or 7, wherein the removable device further comprises a third data connector, wherein the interface of the third data connector is an IEEE1394 interface, a wireless Bluetooth interface, and an IrDA interface. , HomeRF interface, IEEE 802.11a interface, or IEEE 802.11b interface.
The removable storage device according to claim 1, wherein the interface of the first data connector is an IEEE1394 interface, a wireless Bluetooth interface, an IrDA interface, a HomeRF interface, an IEEE 802.11a interface, or an IEEE 802.11b interface. The interface of the second data connector is a USB Type C interface.