KR200316559Y1 - Multiplex transmission interface memory card - Google Patents

Abstract

The present invention relates to a multi-transmission interface memory card, and has a dual interface transfer function on a control chip of the memory card so that two transfer functions can be performed with a single memory card, and more conveniently interconnected with various electronic terminal products. It is characterized by obtaining convenience.

Description

Multiple Transfer Interface Memory Cards {MULTIPLEX TRANSMISSION INTERFACE MEMORY CARD}

The present invention relates to a multi-transmission interface memory card, and more particularly, to a multi-transmission interface memory card that is designed to have a dual interface transfer function in a memory card control chip, thereby enabling a high transfer speed and convenience.

Memory cards used in digital cameras, MP3s, notebook computers, mobile phones, and PDAs are widely used because of their large capacity, compactness, and portability. Launches memory cards to meet consumer needs. Commercially available memory cards include Smart Digital (SD) memory cards, Memory Stick (MS) memory cards, Compact Flash (CF) memory cards, Smart Media (SM) memory cards, Multi Media Card (MMC) memory cards, and MD (IBM). Micro Drive) There are many types of memory cards, such as memory cards, and the size of each of them, and the data stored in the memory card can be accessed by computer systems. Therefore, you must use a card reader, because there are many types of memory cards, so that consumers must have a variety of card readers or multi-purpose card readers that can read different types of memory cards, so that they do not meet economic needs. At the same time, the problem of carrying a card reader also creates inconvenience. And as the capacity of the memory card increases steadily, the processing data file also becomes large, but the data transfer speed is rather limited by the USB interface or the reading speed of the memory. At present, it is possible to solve the disadvantage that the USB interface read speed is too slow by directly plugging the notebook computer using the PCMCIA connection expansion slot. However, the above connection card is still limited by the flash memory read speed. It can only be applied to notebook computers, and since each notebook computer has a different slot format, the problem of fundamentally reading data too slow cannot be solved.

For example, a conventional 'flash electronic erase read-only memory system' (FLASHEEPROM SYSTEM, U.S. Patent No. 5,602,987) is shown in FIG. 1, and the prior art is mainly a memory connected to a kind of computer motherboard system. As a memory system of the card, a non-volatile memory 29 is formed by connecting a controller 31 to a flash electrically erasing read-only memory system 33. One input / output device (I / O DEVICE) 27 is constituted, and the input / output device 27 is a microprocessor (MICRO-PROCESSOR) 21 connected to a computer system by a system bus 23 and The memory 25 maintains the accuracy of massive access to the computational cycle. However, the main drawback of the prior art is that it does not meet the requirements of high speed transmission and commonality (compatibility).

Next, a conventional 'architecture for a universal serial bus-based PC flash disk' (US Pat. No. 6,148,354) is as shown in FIG. Preferably, one connection interface 64 is linked between the flash components 58 and the USB connector 52, and the connection interface 64 is a USB logical / physical interface. Physical Interface (66) and USB Function Interface (68), which includes the Application Packet Extractor (70), Application Command Analyzer (Application Packet Extractor) for signal transmission. Command Interpreter (72), Address Resolver (74), Data And Status Handler (Data And Status Handler), Memory Technology Drive Program (MTD) 78, and then through Flash Components 58. Transfer, award Due time devices constitute a flash memory module that can be accessed and erased. However, the main drawback of the above-described prior art is that only the computer can be connected to the terminal to terminal, it is not possible to satisfy the peer-to-peer Internet connection structure can not achieve the purpose of sharing the source.

Other types of 'memory card with dual interface and its switching module' (Republic of China New Patent Publication) are as shown in Fig. 3, which includes a memory group and a micro control unit connected to the memory group. Among them, the micro control unit is provided with a USB interface and a HOST interface at the same time, the USB interface is connected to the computer to facilitate the computer to read and write data to the memory card, and the HOST interface is associated with the memory card By allowing the product to be connected, the recorded data can be read and written. In conclusion, the feature of the above-described conventional structure is that the data can be read or written directly by connecting the conversion module with a computer, thereby improving the reading and writing speed, but the structure still does not deviate from the existing card reader pattern. In other words, the conversion module still has the selectivity of the memory card so that it can be connected to the computer system only by using different conversion modules for different memory cards.

Therefore, in view of the drawbacks of the prior art, the main object of the present invention is to provide a kind of multi-transmission interface memory card, by providing a dual interface transfer function to the control chip of the memory card, two transfer functions to the memory card It is to provide a multi-transmission interface memory card with the characteristics of increasing the transmission performance and reducing the volume by achieving the commonality to interconnect with various kinds of electronic terminal products more conveniently.

1 to 3 is a block diagram showing three types of prior art;

Figures 4a and 4b is a three-dimensional appearance of the preferred embodiment of the present invention from the front and from the other angle,

5 is a structural diagram of a preferred specific embodiment of the present invention;

6 is a data transmission block diagram of a preferred embodiment of the present invention;

7 is a circuit structure diagram of the present invention,

Figures 8a and 8b is a three-dimensional appearance view of another embodiment of the present invention from the front and from the other angle,

9A is an exploded view of another embodiment of the present invention, and

9B is an appearance combination view of the embodiment of FIG. 9A.

* Explanation of symbols for the main parts of the drawings

21: microprocessor 23: system bus

25: memory device (R.A.M) 27: input and output devices

29: nonvolatile memory 31: controller

33: Flash Electronic Erase Read Only Memory System

52: USB connector 58: flash component

64: connection interface 66: USB logical / physical interface

68: USB function interface 70: application packet extractor

72: application instruction interpreter 74: address analyzer

76: data and status manipulator 78: memory technology drive program

80, 180, 280: memory card 81: circuit board

82: control chip 83: memory chip

84, 184: memory card interface 85, 185, 285: connection interface

86, 186, 286: Main Unit 821: Memory Card Controller

822 flash controller unit

823: Low Voltage Differential Signal Transmission Function Interface

824: Low Voltage Differential Signal Transmission Logical / Physical Interface

825: low voltage differential signal transmission controller

To help a more advanced understanding of the features, objects and functions of the present invention, it will be described in detail with reference to the accompanying drawings.

4A and 4B are external three-dimensional views of preferred embodiments of the present invention, viewed from different angles. The multi-transfer interface memory card of the present invention includes a memory card main body 86 in the memory card 80, The main body 86 is provided with a memory card interface 84 and a connection interface 85, the memory card interface 84 is an SD (Smart Digital) memory card, MS (Memory Stick) memory card, CF (Compact Flash) A memory card interface such as a memory card, a smart media (SM) memory card, a multi-media card (MMC) memory card, an IBM micro drive (MD) memory card, and the like. The 1394 standard interface established by the IEEE can be used.

5 to 7, a circuit board 81 is provided in the housing 86, and the memory card interface 84 and the connection interface 85 are both the circuit board 81. And a control chip 82 on the circuit board 81 to be connected to the memory interface 84. The control chip 82 is a memory card controller 821. ), Flash Controller Unit 822, Low Voltage Differential Signal Transfer Function Interface 823, Low Voltage Differential Signal Transfer Logical / Physical Interface 824, Low Voltage Differential And a signal transmission controller (LVDS Controller) 825, which connects the memory card 80 with the computer system directly to the main device interface 85, thereby allowing the computer system and the memory card 80 to exchange data with each other. It is possible to transmit, and is also responsible for data conversion via the control chip 82. In other words, the control chip 82 has a dual interface design, one of which is a memory card interface and the other of which is a 1394 high speed interface established by USB or the International Electrotechnical Commission (IEEE).

8A and 8B, the main body 186 and the connection interface 185 of the memory card 180 are hingedly coupled to the shaft 1861, and the memory card interface 184 and the connection interface 185 are electrically connected to each other. And the connection interface 185 can rotate by centrifuging the shaft 1181 so that the connection interface 185 can be changed at various angles when the connection interface 185 is inserted into the computer host device, thereby being limited by space. Do not.

9A and 9B, the connection interface 285 and the main body 286 of the memory card 280 illustrated in FIGS. 9A and 9B are mutually hingedly coupled to the axes 2851 and 2861 installed at the connection interface 285 and the main body 286, respectively. The shafts 2851 and 2861 have electrical connection points (not shown) so that the connection interface 285 has an electrical connection relationship after hinged to the body 286. Similarly, the connection interface 285 of the present embodiment can rotate the shafts 2851 and 2861 centrifugally, so that the angle of change can be varied when the connection interface 285 is inserted into the computer main device, thereby limiting the space. Do not receive.

As described above, the above contents are limited to the preferred embodiments of the present invention, and are not limited to the scope of the present invention, and equivalent changes and modifications are made according to the utility model registration claims to which the present invention applies. If the case does not violate the gist of the present invention and does not depart from the spirit and scope of the present invention, it is regarded as a more advanced embodiment of the present invention.

The present invention is characterized in that the control chip 82 of the memory card 80 includes a memory card interface 84 and a connection interface 85 dual interface transfer function, and the advantages thereof are as follows.

1. It is more convenient to achieve the commonality of interconnection with various types of electronic terminal products, thereby achieving data compatibility of terminal to computer and terminal to terminal.

2. The connection speed 85 of the 1394 standard set by USB or the International Electrotechnical Commission (IEEE) has surpassed the transfer speed of the conventional memory card.

3. It saves the cost of deploying the card reader, so it meets the economic needs.

4. It doesn't need a card reader and it's compact and easy to carry.

Claims (6)

A memory card body; Control chip; A memory chip; A memory card interface connected to the control chip; A connection interface connected to the memory chip, And a dual interface transfer function for the memory card by providing electrical connectors in the memory card body, the control chip, the memory chip, the memory card interface, and the connection interface. The method of claim 1, And the control chip comprises a memory card controller, a flash controller unit, a low voltage differential signal transmission function interface, a low voltage differential signal transmission logical / physical interface, and a low voltage differential signal transmission controller. The method of claim 1, And the memory chip comprises a plurality of flash memories. The method of claim 1, And the memory chip comprises a plurality of read-only memories. The method of claim 1, And the connection interface uses a connection interface of a standard standard established by USB or the International Electrotechnical Commission (IEEE). The method of claim 1, And the memory card main body is hinged to the connection interface so that the connection interface is rotated about an axis.