JP3118657U - Variable USB memory stick - Google Patents

Abstract

The present invention provides a variable USB memory stick.
A connector having a multi-memory transmission function provided on a main body of a USB memory stick and having a multi-memory transmission function, and corresponding to the connector via a single common bus. Multi-memory card transmission interface including USB transmission interface connected to the port and compatible with electrical devices, or SD transmission interface, MMC transmission interface, MSpro transmission interface, XD transmission interface, SM transmission interface, CF transmission interface, etc. And a variable USB memory stick for accessing signals.
[Selection] Figure 1

Description

The present invention relates to a variable USB memory stick, in particular, connected to a corresponding connector port via a single common bus, and connected to a USB transmission interface corresponding to an electric device or a corresponding multi-memory card transmission interface. The present invention relates to a variable USB memory stick that performs data access.

The market size of small digital models is gradually increasing (for example, digital cameras, video cameras, MP3s, mobile phones, etc.). The internal key parts were directly influenced, but the miniaturization and sophistication corresponding to these, the development using the parts technology was also relatively miniaturized, the chip development was the main development direction, these were close to mini IC parts printed circuit boards are becoming increasingly smaller in volume and density.

The above-mentioned small digital models include memory cards that store video data, digital photographs, MP3 music, game data, etc. (for example, Smart Media (registered trademark) Card, Security
Digital Card, Multi
Media Card, Memory
Digital storage devices such as Stick Cards, CF Cards, XD Cards, etc.) and memory sticks have already become personal items for many computer users. The memory card and memory stick are smaller in volume than the floppy disk, but the capacity is larger than the floppy disk and the speed of the access is faster. Are not as damp or broken as floppy disks, many consumers increasingly use both storage devices as personal items instead of floppy disks .

Generally, an electrical device such as a personal computer or a notebook computer has a different transmission interface for connecting a memory stick and a memory card. As a memory stick, its transmission interface is a USB connector, but the transmission interface of a memory card is a conductive terminal called a gold finger. Therefore, on this printed circuit board, a corresponding USB connector port and memory card connector are attached respectively. It requires a kind of interface and is very inconvenient to use.

Furthermore, the circuit layout on the printed circuit board is not only based on the principle-related connectors, but also considers certain requirements for circuit processes (for example, high frequency characteristics, device impedance, immunity, etc.). The mounting holes, plugs, positioning holes and various devices on the printed circuit board need to be accurately mounted at specified positions. Convenient for attaching peripheral equipment connections, maintaining good ventilation and heat dissipation, and layout of solder pads, through holes (pattern holes), patterns, etc. on the printer board all affect the quality of reliability give. At the same time, it can be ensured that it does not collide between devices, and can be conveniently installed, adjusted and tested, and returned goods repaired.

In other words, miniaturization of digital model products mainly depends on the layout of the internal parts and the layout of the printer board. The more functions, the more complicated the layout of the printer board and the layout of the IC parts, but the narrower It is not possible to re-add IC parts and circuit layouts again, limited to the circuit layout. If many parts are attached, the volume may increase further.

Therefore, the present invention designs a storage device as a personal item, has a multi-memory transmission function, and is connected to a single common bus and a corresponding connector port to support an electrical device. When a signal is accessed with the USB transmission interface or the multi-memory card transmission interface, the transmission interface on the printer board (for example, USB connector port, memory card connector,...) The challenge is to reduce the occupancy of electronic products and make electronic products more convenient for mini-design.

The present invention has been made in view of such circumstances, and a common bus conforming to the USB connector format is provided on the USB memory stick main body, and the common bus has a multi-memory transmission function. And via a single common bus connected to the corresponding connector port, a USB transmission interface corresponding to the electrical device, or an SD transmission interface, an MMC transmission interface, an MSpro transmission interface, an XD transmission interface, USB memory stick for accessing signals with multi-memory card transmission interface including SM transmission interface and CF transmission interface.

As the memory stick itself, it is only necessary to provide a single common bus, and some of the circuit contacts in this common bus overlap the multi-memory card interface and the USB interface, Does not increase volume and does not increase inconvenience in use. In comparison, an electrical device adapted for use requires only a single connector port corresponding to a common bus, and data with this memory stick can be transmitted via a USB transmission interface or multi-memory card interface. The purpose is to achieve transmission and further save PCB space, simplify circuit layout and installation, and further reduce overall reliability and inventory and logistics costs.

The detailed configuration, function used, and application principle of the present invention can be understood by referring to the following drawings.

First, as shown in FIG. 1 and FIG. 2, FIG. 1 and FIG. 2 are basic configuration diagrams of the memory stick according to the optimum embodiment of the present invention. The memory stick has a single printed circuit board 1 as a main component, and the printed circuit board 1 includes one common bus 2, a connection line, a related multi-interface control chip, a switching circuit, and an IC such as a memory module 3. A mask is formed on the IC parts of the printed circuit board 1 by providing a part, covering a further housing 4 outside the printed circuit board 1 and exposing only the common bus 2 at the end of the printed circuit board 1. To do.

Among them, the common bus 2 is provided with one first contact block 21 and at least one second contact block 22. The circuit contacts in the first contact block 21 conform to the corresponding mode of the USB connector port, and mainly perform data transmission with an electric device connected by configuring a memory stick via the USB transmission interface. Some of the circuit contacts of the second contact block 22 have a predetermined arrangement mode, mainly with the circuit contacts in the first contact block 21 to connect to the electrical device connected by forming a memory stick. Data transmission is performed via a multi-memory card interface.

When implemented, the first contact block 21 and the second contact block 22 are arranged on both the upper and lower substrate surfaces of the printed circuit board 1 as shown in FIG. 2, respectively, or as shown in FIG. The same common buses 2 are arranged in a collection of front and rear block positions in front of the same substrate surface as the substrate 1. Accordingly, all of the memory sticks need only be provided with a single common bus 2, and some of the circuit contacts in the common bus 2 (in the figure, belong to the circuit contacts of the first contact block 21). The function of) does not increase the volume of the memory stick by overlapping the multi-memory card interface and the USB interface, and does not increase inconvenience in use.

Similarly, in an electrical device used in accordance with the memory stick of the present invention, it is necessary to arrange only one connector port corresponding to a common bus, and this memory can be connected via a USB transmission interface or a multi-memory card interface. The purpose of data transmission with sticks is to further reduce PCB space, simplify circuit layout and installation, and further reduce overall reliability and inventory and logistics costs .

Also, as shown in FIG. 4, in the present invention, controlling the memory stick with one switch circuit 5 uses a USB interface or a multi-memory card interface in the common bus 2 and a flash memory in the memory module. To access the data. In a specific implementation, the switch circuit 5 performs conversion between the USB interface and the multi-memory card interface according to the manual mode of one switch circuit 51, as shown in FIG. 4, or as shown in FIG. In addition, by providing a control chip, the use of automatic switching between the USB interface and the multi-memory card interface can be achieved, and in response to the different transmission modes between the multi-memory card transmission interface, these switching methods are Although it is a prior art, it is not detailed here.
Incidentally, the memory stick is composed of a multi-memory card transmission interface including an SD transmission interface, an MMC transmission interface, an MSpro transmission interface, an XD transmission interface, an SM transmission interface, a CF transmission interface, and the like. By providing one file management converter on the printed circuit board of the memory stick, the circuit connection between the switch circuit and the memory module is configured, and the data is transferred to the predetermined flash memory of the memory module via the file management converter. Or data in the flash memory 31 is output.

As can be seen from the above description, the present invention provides another optimal configuration of the memory stick. However, what has been described above is only an optimal embodiment of the present invention, and is not limited to the scope of the present invention. All equivalent changes and modifications according to the claims of the present invention are also patents of the present invention. Included in the claims.

1 is a basic configuration diagram of a memory stick of the present invention. It is a schematic diagram of the arrangement | positioning state of the 1st, 2nd contact block of this invention. It is a schematic diagram of the arrangement | positioning state of the 1st, 2nd contact block of the other Example of this invention. It is an external appearance block diagram of the memory stick of other Example of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Printed circuit board 2 Common bus 3 Memory module 4 Housing 5 Switch circuit 21 1st contact block 22 2nd contact block
51 selector switch

Claims (9)

In the USB memory stick having a common bus that conforms to the USB connector format on the main body of the USB memory stick, the common bus has a multi-memory card and a USB interface, and has a multi-memory transmission function. Configure and connect to the corresponding connector port via a single common bus, and the USB transmission interface corresponding to the electrical device, or SD transmission interface, MMC transmission interface, MSpro transmission interface, XD A variable USB memory stick characterized in that a signal can be accessed with a multi-memory card transmission interface including a transmission interface, an SM transmission interface, and a CF transmission interface. The common bus is provided with one first contact block and at least one second contact block, and circuit contacts of the first contact block are matched with a corresponding mode of the USB connector port, The variable USB memory stick of claim 1, wherein some of the circuit contacts have a predetermined placement mode. The circuit contacts of the second contact block are combined with the circuit contacts of the first contact block to form a memory stick, which is connected to the connected electrical device and data via the multi-memory card transmission interface. The variable USB memory stick according to claim 2, wherein the variable USB memory stick is configured to perform transmission. The variable USB memory stick according to claim 1, wherein the first and second contact blocks are respectively disposed on both upper and lower surfaces of the printed circuit board. 2. The variable USB memory stick according to claim 1, wherein the first and second contact blocks are configured such that positions of a front block and a rear block are arranged on the same surface of the printed circuit board, respectively. 2. The variable USB memory stick according to claim 1, wherein one switch circuit constituting a circuit connection between the common bus and the memory module is provided. 7. The variable USB memory stick according to claim 6, wherein the switch circuit is configured to perform conversion between the USB interface and the multi-memory card according to a manual mode of one switch circuit. 7. The variable USB memory stick according to claim 6, wherein the switch circuit is provided with a control chip so that use of automatic switching between a USB interface and a multi-memory card can be achieved. . 2. The variable USB memory stick according to claim 1, wherein one switch circuit and one file management converter for circuit connection between the common bus and the memory module are provided.

Images