CN100381979C - Multi-interface memory card and conversion module thereof - Google Patents

Abstract

A multi-interface memory card and a conversion module thereof. The multi-interface memory card comprises a microcontroller unit, wherein the microcontroller unit comprises a microprocessor, two connecting line interface controllers and a host interface controller which are respectively connected with the microprocessor, and memory interfaces which are respectively connected with the microprocessor, the connecting line interface controllers and the host interface controller; the storage unit group is connected with the microcontroller unit through a data bus; two connection interfaces connected with the two connection interface controllers, wherein the two connection interfaces comprise a USB interface and an IEEE 1394 interface; and an input/output interface connected to the host interface controller. The conversion module comprises a shell, wherein one end of the shell is provided with a memory card slot for a multi-interface memory card to be inserted, the other end of the shell is provided with a USB interface connector and an IEEE 1394 interface connector, a terminal seat is arranged in the shell, one end of the terminal seat is correspondingly inserted with an interface terminal interface of the multi-interface memory card, and the other end of the terminal seat is connected with the interface connector.

Description

Multi-interface memory card and its conversion module

technical field

The invention relates to a multi-interface memory card and its conversion module, in particular to a memory card and its conversion module which has multiple interfaces and is respectively connected to a product or a computer to facilitate data storage and reading.

Background technique

In order to cope with the advent of digital products, many small memory cards of different specifications have appeared on the market, such as STONE cards, Smart Media cards, MMC cards, Memory Stick cards, and Compact Flash cards, etc., which are relatively popular memory card products on the market. , because this kind of memory card is light, thin and short, it not only meets the needs of digital products to store data, and its capacity has reached more than megabytes, so it is really convenient to use for digital products such as digital cameras.

However, the memory card is combined with the product when used. If you want to read the data stored in the memory card, it must still be processed by the computer. However, this type of memory card is not a standard specification of the computer. If you want to connect the memory card to the computer , must pass through other means such as:

1. Use a card reader: This type of card reader is designed for various memory cards, such as SmartMedia card, MMC card, Memory Stick card and Compact Flash card, etc. After the computer is connected to the interface port of the computer, insert the memory card into the card reader to read the contents of the memory card through the card reader.

2. Use a conversion disk: the size of this conversion disk is the same as that of a 3.5-inch disk. There is a conversion slot on it for the insertion of a memory card. After the memory card is inserted, the conversion disk is inserted into the 3.5-inch disk drive of the computer for reading. Write.

However, there are disadvantages in the above two methods. For example, most card readers can only read and cannot write data, and the floppy disk drive reads and writes by converting the disk, and the execution speed is obviously low. With the multiple conversions of the floppy drive, the possibility of mechanical failure is relatively increased.

Moreover, almost every once in a while, there will be a computer interface with new specifications coming out, such as the USB (Universal Serial Bus) and IEEE1394 that rose some time ago. Insufficient expansion slots on the host computer. Of course, the transmission speed is also the key point emphasized by the industry. In terms of USB, its transmission speed is 12M bits/second. , 200Mbit/s and 400Mbit/s and other specifications are mainly suitable for peripheral devices with high transmission speed requirements, such as monitors and external hard disks.

It can be seen that different computer users may choose different interfaces based on different needs at different times. Card machine or conversion device, this obviously has extremely inconvenient part for the user of memory card.

As can be seen from the above, there are still many defects in the connection technology between the memory card and the computer, and a solution is still to be further sought.

Contents of the invention

The main purpose of the present invention is to provide a memory card and a conversion module that can be connected to a computer through various interfaces to increase execution speed and reduce mechanical failure.

According to one aspect of the present invention, a kind of multi-interface memory card is provided, comprising:

A microcontroller unit, the microcontroller unit includes a microprocessor, two connection interface controllers and host interface controllers connected to the microprocessor respectively, and connected to the microprocessor, a memory interface to the wire interface controller and the host interface controller;

A storage unit group connected to the microcontroller unit through a data bus;

Two connection interfaces connected to the two connection interface controllers, the two connection interfaces are USB interface and IEEE1394 interface; and

an input/output interface connected to the host interface controller.

According to the above multi-interface memory card, wherein, the storage unit group is composed of a flash memory unit, a readable and writable storage unit or a read-only storage unit.

According to another aspect of the present invention, there is provided a conversion module of a multi-interface memory card, the multi-interface memory card includes: a microcontroller unit, the microcontroller unit includes a microprocessor, and respectively communicates with the microprocessor The two connection interface controllers connected with the host interface controller and the memory interface connected to the microprocessor, the connection interface controller and the host interface controller respectively; a memory cell group, through the data bus and the The microcontroller unit is connected; two connection interfaces connected with the two connection interface controllers, the two connection interfaces are USB interface and IEEE1394 interface; and the input connected with the host interface controller /output interface, the connection interface and the input/output interface constitute the interface terminal interface of the multi-interface memory card, wherein the conversion module includes:

A housing, one end of the housing is provided with a memory card slot for insertion of the multi-interface memory card, the other end of the housing is provided with a USB interface connector and an IEEE1394 interface connector, and the inside of the housing is provided with A terminal base, one end of the terminal base is correspondingly plugged with the interface terminal of the multi-interface memory card, and the other end is connected with the USB interface connector and the IEEE1394 interface connector.

According to the conversion module of the above-mentioned multi-interface memory card, wherein, at the end where the IEEE1394 interface connector and the USB interface connector are provided, the housing forms two notches in a fork shape for setting the IEEE1394 interface connector and the USB interface connector.

形状的框体构成，它包括两相对侧框及一连接该两侧框的连接肋，其中两侧框相对内侧壁上分别形成供所述存储卡插入的轨槽，连接肋上设置将所述USB接口连接器和IEEE1394接口连接器与所述存储卡的接口端子接口连接在一起的端子。According to the conversion module of the above-mentioned multi-interface memory card, wherein, the terminal base is formed by a

The shape of the frame is composed of two opposite side frames and a connecting rib connecting the two side frames, wherein rail grooves for inserting the memory card are respectively formed on the opposite inner walls of the two side frames, and the connecting ribs are provided with the The USB interface connector and the IEEE1394 interface connector are connected together with the interface terminals of the memory card.

According to another aspect of the present invention, a kind of multi-interface memory card is provided, comprising:

A microcontroller unit, the microcontroller unit includes a microprocessor, a connection interface controller and a host interface controller respectively connected to the microprocessor, and respectively connected to the microprocessor, connection an interface controller and a memory interface to the host interface controller;

A storage unit group connected to the microcontroller unit through a data bus;

a connection interface connected to the connection interface controller, the connection interface being an IEEE1394 interface; and

an input/output interface connected to the host interface controller.

According to the above multi-interface memory card, wherein, the storage unit group is composed of a flash memory unit, a readable and writable storage unit or a read-only storage unit.

According to another aspect of the present invention, there is provided a conversion module of a multi-interface memory card, the multi-interface memory card includes: a microcontroller unit, the microcontroller unit includes a microprocessor, and respectively communicates with the microprocessor The line interface controller and the host interface controller connected to the device, and the memory interface connected to the microprocessor, the line interface controller and the host interface controller respectively; a storage unit group, through the data bus and the said microprocessor connected to the controller unit; a connection interface connected to the connection interface controller, the connection interface is an IEEE1394 interface; and an input/output interface connected to the host interface controller, the connection interface is connected to the The input/output interface constitutes the interface terminal interface of the multi-interface memory card, wherein the conversion module includes:

A housing, one end of the housing is provided with a memory card slot for insertion of the multi-interface memory card, the other end of the housing is provided with an IEEE1394 interface connector, and a terminal block is provided inside the housing, the One end of the terminal base is correspondingly inserted into the interface terminal of the multi-interface memory card, and the other end is connected to the interface connector.

形状的框体构成，它包括两相对侧框及一连接该两侧框的连接肋，其中两侧框相对内侧壁上分别形成供所述存储卡插入的轨槽，连接肋上设置将所述接口连接器与所述存储卡的接口端子接口连接在一起的端子。According to the conversion module of the above-mentioned multi-interface memory card, wherein, the terminal base is formed by a

The shape of the frame is composed of two opposite side frames and a connecting rib connecting the two side frames, wherein rail grooves for inserting the memory card are respectively formed on the opposite inner walls of the two side frames, and the connecting ribs are provided with the The interface connector is a terminal interface-connected with the interface terminal of the memory card.

The main features of the present invention are: to provide a memory card utilizing the present invention with multiple sets of computer connection line interfaces and a product interface, in addition to being installed in related products and using the product interface for data recording and storage, it can also be used with The unspecific interface connection on the computer enables the computer to directly read the memory data of the memory card through the high-speed interface, making the computer's reading and writing operations more convenient and fast; and for memory card users, facing different specifications on the computer interface, no need to use a specific card reader or conversion device, that is, the same conversion module can achieve the connection purpose, which is more convenient to use than a card reader or conversion device with only a single specification function.

The specific structure, features and purposes of the present invention will be further described below in conjunction with the accompanying drawings.

Description of drawings

Fig. 1 is a circuit diagram inside a memory card according to a preferred embodiment of the present invention.

FIG. 2 is a circuit block diagram of a micro-controller unit in the aforementioned memory card.

Fig. 3 is an appearance view of a preferred embodiment of the present invention.

Fig. 4 is a sectional view of a preferred embodiment of the present invention.

Fig. 5 is a reference diagram of a use state of a preferred embodiment of the present invention.

Fig. 6 is an internal circuit diagram of a memory card according to another preferred embodiment of the present invention.

FIG. 7 is a circuit block diagram of the micro-controller unit in the aforementioned memory card.

Fig. 8 is a plan view of another preferred embodiment of the present invention.

Detailed ways

As shown in Figure 1, it represents a memory card that is the circuit structure of a preferred embodiment of the present invention, and it includes:

a microcontroller unit 10;

A storage unit group 20, which is connected with the aforementioned micro-controller unit 10 through a data bus, and reads and writes data by an externally connected computer or product through the micro-controller unit 10;

A group or more than one group of connection interfaces 31, 32 are connected to the storage bank group 20 through the microcontroller unit 10 to control data in and out;

A product interface 40, which is connected with a digital product (such as a digital camera, etc.) for reading or recording and storing data; wherein:

This micro-controller unit 10 cooperates with appropriate firmware to carry out the data conversion work, in order to store the data read in from the product on the specific address of the storage unit group 20 after conversion; The stored data is converted and sent to the computer through the corresponding interface; its internal structure is shown in Figure 2, which includes:

a microprocessor 13;

A plurality of connection interface controllers 11, 12 are respectively connected to the aforementioned microprocessor 13 and external connection interfaces 31, 32 through I/O terminals;

A HOST interface controller 14 is connected with the aforementioned microprocessor 13 and the external product interface 40 through I/O ports respectively;

A storage unit interface 15 is respectively connected with the aforementioned microprocessor 13, a plurality of connection interface controllers 11, 12 and the host (HOST) interface controller 14; wherein:

In this embodiment, the microcontroller unit 10 is internally designed with two connection interface controllers 11, 12, one of which is a USB interface controller, and the other is an IEEE1394 interface controller.

Also the aforementioned HOST interface controller 14 conforms to the STONE card specification, and it is used to connect with the external product interface 40; Card-standard interface controller configuration.

Still referring to Fig. 1, the storage unit group 20 is composed of a flash storage unit, a readable and writable storage unit or a read-only storage unit. In this embodiment, the storage unit group 20 is composed of four groups of flash storage units 21-24, each of the flash memory units 21-24 is connected to each other through the bus, and is also connected to the microcontroller unit 10 at the same time.

The connection interfaces 31, 32 can be one group or more than one group. In the present embodiment, two groups of different I/O interfaces are utilized as the connection interfaces 31, 32, which are respectively USB and IEEE1394, and are respectively connected to the microcontroller. The two wire interface controllers 11, 12 inside the controller unit 10 are connected.

In this embodiment, the product interface 40 is composed of an I/O interface conforming to the STONE card specification, which is connected to the HOST interface controller 14 inside the microcontroller unit 10; Standard I/O interface configuration (such as Smart Media card, MMC card, Memory Stick card and Compact Flash card, etc.).

When the memory card is set inside the product and is connected with the product interface 40, the data output interface of the product is sent through the product interface 40, and is stored in the storage unit group after being processed by the microprocessor inside the microcontroller unit 10. 20 specific address.

With the aforementioned design, the memory card can be installed in related products for storing and recording data, and the stored data can also be transferred to the computer through different interfaces, or the data can be written by the computer.

An example is provided below to illustrate the specific structure and usage of the present invention, but this example is only used to prove the feasibility of the present invention, and is not intended to limit its applicable objects or product types.

First please refer to shown in Figure 3, which represents a memory card 50 and a conversion module 60, wherein the interior of the memory card 50 is provided with the aforementioned microcontroller unit 10, storage unit group 20 and multiple groups of interfaces, and its front end is provided with interface terminals In the interface 51, four of the terminals are used as connection interfaces in the form of USB, and the remaining terminals are respectively used as connection interfaces in the form of IEEE1394 and product interfaces conforming to STONE card specifications. In order to connect with different I/O interfaces on the computer, the memory card 50 will be equipped with a conversion module 60, and the corresponding connector on the conversion module 60 will be plugged into the interface of the computer to form a connection.

For the detailed structure of the conversion module 60, please refer to Fig. 3 and shown in Fig. 4. It is mainly composed of a watch case 61 and a bottom case 62 of symmetrical shape to form a housing relatively, and a terminal block 63 is provided inside it, and a A USB connector 64 and an IEEE1394 connector 65 are respectively provided; wherein:

The watch case 61 and the bottom case 62 can be relatively combined by appropriate means of combination, and the watch case 61 and the bottom case 62 are respectively formed with gaps at both ends, wherein the relative gap at one end is to form a memory card slot 66, and the other Two notches are formed in the shape of a fork opposite to the other end, for respectively setting the USB connector 64 and the IEEE1394 connector 65 ;

形状的框体，其包括有两相对的侧框及一连接两侧框的连接肋，其中，两侧框在相对内侧壁分别形成一轨槽(图中未示)，供存储卡50对应滑入，图4为存储卡50插入后的实样。又，端子座63的水平连接肋设有多个端子631，各端子631的一端分别对准于存储卡50上的接口端子接口51，其另一端则分别与USB连接器64及IEEE1394连接器65连接，因此，当存储卡50插入转换模块60内，其接口端子接口51即与端子座63内各端子631对应插接，而该接口端子接口51随即通过各端子631分别与USB连接器64及IEEE1394连接器65连接。And the terminal base 63 is a

The shape of the frame body includes two opposite side frames and a connecting rib connecting the two side frames, wherein, the two side frames respectively form a track groove (not shown) on the opposite inner side walls for the memory card 50 to slide correspondingly. 4 is a real sample after the memory card 50 is inserted. Again, the horizontal connection rib of terminal base 63 is provided with a plurality of terminals 631, and one end of each terminal 631 is aligned with the interface terminal interface 51 on the memory card 50 respectively, and its other end is then connected with USB connector 64 and IEEE1394 connector 65 respectively. Therefore, when the memory card 50 is inserted into the conversion module 60, its interface terminal interface 51 is correspondingly plugged with each terminal 631 in the terminal block 63, and the interface terminal interface 51 is connected to the USB connector 64 and the USB connector 64 through each terminal 631 respectively. IEEE1394 connector 65 connection.

The aforementioned memory card 50 is combined as shown in Figure 5, it can be plugged into the corresponding expansion slot on the computer through the USB connector 64 or IEEE1394 connector 65, and the memory card 50 in the conversion module 60 can be connected to the corresponding expansion slot through the USB interface or IEEE1394 immediately. The interface forms a connection with the computer. Because the memory card 50 is directly connected to the computer through the aforementioned high-speed interface, the high-speed transmission characteristics can be used to improve the data read and write speed, and the computer can read and write the memory card 50 more conveniently and quickly.

The above-mentioned conversion module 60 can not only be plugged directly into the expansion slot provided by the computer, but also can be plugged into the slot on the hub (Hub), and connected to the computer through the hub.

See also shown in Fig. 6, and it is the circuit diagram of another preferred embodiment of the present invention, and its structure is roughly the same as the previous embodiment, and difference is: this memory card only provides single connection interface 30 and a product interface 40, and the aforementioned connection interface 30 and product interface 40 are still connected to the storage unit group 20 through the microcontroller unit 10; wherein the structure of the microcontroller unit 10 is shown in Figure 7, which includes a microprocessor 13, a IEEE1394 interface controller 12, a HOST interface controller 14 and a storage unit interface 15;

The above-mentioned memory card can be used in the product to store and record data, and can also be connected with the IEEE1394 interface on the computer through a conversion module. As shown in Figure 8, the structure of the conversion module 70 is substantially the same as that of the previous embodiment, the difference is that the conversion module 70 only provides a group of IEEE1394 connectors 71, so that the memory card 50 and IEEE1394 interface connection on the computer.

From the above, we can understand the specific structure and working principle of the present invention. This design can be applied to existing STONE cards, Smart Media cards, MMC cards, Memory Stick cards and Compact Flash cards, etc., so that the computer can easily read and write each memory card.

The microcontroller unit 10 used in the present invention can adopt the integrated circuit that model is STUDMC-01A, and the integrated circuit of four groups of flash memory units 21～24 can be selected from one of following three: Toshiba TC58256 or Samsung KM29V1258A or Hitachi HN29W25611.

Claims (9)

1. A multi-interface memory card, characterized in that it comprises: A microcontroller unit, the microcontroller unit includes a microprocessor, two connection interface controllers and host interface controllers connected to the microprocessor respectively, and connected to the microprocessor, a memory interface to the wire interface controller and the host interface controller; A storage unit group connected to the microcontroller unit through a data bus; Two connection interfaces connected with the two connection interface controllers, the two connection interfaces are USB interface and IEEE 1394 interface; and an input/output interface connected to the host interface controller. 2. The multi-interface memory card according to claim 1, wherein the storage unit group is composed of a flash memory unit, a readable and writable storage unit or a read-only storage unit. 3. A conversion module of a multi-interface memory card, said multi-interface memory card comprising: a micro-controller unit, which comprises a microprocessor, two connecting wires respectively connected to said microprocessor an interface controller and a host interface controller, and a memory interface connected to the microprocessor, the line interface controller and the host interface controller respectively; a storage unit group connected to the microcontroller unit through a data bus; Two connection interfaces connected with the two connection interface controllers, the two connection interfaces are USB interface and IEEE 1394 interface; and the input/output interface connected with the host interface controller, the The connection interface and the input/output interface form the interface terminal interface of the multi-interface memory card, and it is characterized in that the conversion module includes: A housing, one end of the housing is provided with a memory card slot for insertion of the multi-interface memory card, the other end of the housing is provided with a USB interface connector and an IEEE 1394 interface connector, the inside of the housing A terminal block is set, and one end of the terminal block is plugged correspondingly with the interface terminal interface of the multi-interface memory card, and the other end is connected with the USB interface connector and the IEEE 1394 interface connector. 4. the conversion module of multi-interface memory card according to claim 3, it is characterized in that, described housing is provided with the end that IEEE 1394 interface connector and USB interface connector are provided with fork shape and is provided with this IEEE 1394 interface connection connector and the two notches for the USB interface connector. 5. The conversion module of a multi-interface memory card according to claim 3 or 4, wherein the terminal base is formed by a frame body in the shape of ㄇ, which includes two opposite side frames and a frame connecting the two sides The connecting ribs, wherein rail grooves for inserting the memory card are respectively formed on the relative inner walls of the two sides of the frame, and the connecting ribs are provided with an interface between the USB interface connector and the IEEE 1394 interface connector and the interface terminal of the memory card. Terminals connected together. 6. A multi-interface memory card, characterized in that it comprises: A microcontroller unit, the microcontroller unit includes a microprocessor, a connection interface controller and a host interface controller respectively connected to the microprocessor, and respectively connected to the microprocessor, connection an interface controller and a memory interface to the host interface controller; A storage unit group connected to the microcontroller unit through a data bus; A connection interface connected to the connection interface controller, the connection interface being an IEEE 1394 interface; and an input/output interface connected to the host interface controller. 7. The multi-interface memory card according to claim 6, wherein the storage unit group is composed of a flash memory unit, a readable and writable storage unit or a read-only storage unit. 8. A conversion module of a multi-interface memory card, said multi-interface memory card comprising: a micro-controller unit, the micro-controller unit comprises a microprocessor, respectively connected with the connection interface control of the microprocessor device and the host interface controller, and the memory interface connected to the microprocessor, the connection interface controller and the host interface controller respectively; a storage unit group, connected with the microcontroller unit through the data bus; The connection interface connected to the connection interface controller, the connection interface is an IEEE 1394 interface; and the input/output interface connected to the host interface controller, the connection interface and the input/output interface constitute The interface terminal interface of the multi-interface memory card is characterized in that the conversion module includes: A housing, one end of the housing is provided with a memory card slot for insertion of the multi-interface memory card, the other end of the housing is provided with an IEEE 1394 interface connector, and a terminal block is arranged inside the housing, One end of the terminal seat is correspondingly inserted into the interface terminal of the multi-interface memory card, and the other end is connected to the interface connector. 9. The conversion module of the multi-interface memory card according to claim 8, characterized in that, the terminal seat is formed by a frame body in the shape of ㄇ, which includes two opposite side frames and a connection connecting the two side frames Ribs, wherein rail grooves for inserting the memory card are respectively formed on the opposite inner walls of the two sides of the frame, and terminals for connecting the interface connector and the interface terminals of the memory card are arranged on the connecting ribs.

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