CN2679742Y - Controller having transfer USB interface for small memory card interface - Google Patents
Controller having transfer USB interface for small memory card interface Download PDFInfo
- Publication number
- CN2679742Y CN2679742Y CN 03208407 CN03208407U CN2679742Y CN 2679742 Y CN2679742 Y CN 2679742Y CN 03208407 CN03208407 CN 03208407 CN 03208407 U CN03208407 U CN 03208407U CN 2679742 Y CN2679742 Y CN 2679742Y
- Authority
- CN
- China
- Prior art keywords
- memory card
- interface
- usb
- mini memory
- controller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Control By Computers (AREA)
Abstract
The utility model provides a controller having transfer USB interface for small memory card interface. The controller comprises at least a small memory interface connected with the electrical interface of the small memory card inside an information household electrical appliance, a microprocessor for simulating the electrical interface, the instruction set and the communication agreement of the standard small memory card and a USB interface for connecting with a USB memory device. The controller can transfer the small memory card interface applied to the information household electrical appliance to access and connect to the USB portable disc and the relevant memory device of the USB interface through properly transferring mechanism.
Description
Technical field
The utility model relates to a kind of controller of tool mini memory card interface switching USB interface, especially refer to a kind of USB storage device that makes the carry-on dish of USB and be correlated with by a suitable mechanism, the mini memory card interface that can be applicable to information household appliances is gone data access in information household appliances.
Background technology
Use the mini memory card of flash memory as Storage Media, along with its capacity increases, cost reduces, access speed promotes and be convenient for carrying, under the prerequisite of plurality of advantages such as power saving, repetitive read-write and shockproof, protection against the tide, make it that phenomenon of popularizing day by day be arranged on using.Be widely used in the portable digital multimedia device (such as digital camera, digital walkman, gradually, extend to image output device as printer, display, projector), and the family expenses media product (such as: DVD, televisor, sound equipment, refrigerator etc.).
In addition, be applied to carry-on dish of USB interface in the pc domain and relevant USB storage device thereof, because it is big that it has a capacity, characteristics such as stability height and plug and play, make it on the field of Storage Media, to cut a conspicuous figure in recent years and for being in fashion, but it also only can be applied to computer system, for above-mentioned numerical information household electrical appliances and or portable product promptly can't be suitable for, because the mini memory card that these information household appliances and its inner controller of portable product only can be used single or multiple pattern is in order to canned data, and can't support to use carry-on dish of USB interface and relevant USB storage device thereof.
Be built in the controller of these information household appliances and portable product if desire to make in the USB system end interface, involve extremely complicated software communication agreement and hardware resource problem, although therefore the carry-on dish of USB interface is leading in pc domain, still can't cut the market of numerical information household electrical appliances so far; And in the market, also do not have the dealer, make it that control wafer of transferring by the common I/O extended interface of system end only be arranged at mini memory card interface exploitation USB switching control wafer.Its effect only reaches in the system for the interface that intend to expand output, and the USB interface of the versatility that increases is supported the device of various USB interface to comprise human-computer interface device, storage device, communication device etc.
But itself having, the switching control wafer of this type do not support the required software control function of various USB interface devices, the control that comprises itself also must be in system end, set up driver at this switching control wafer, and even be added to the various USB devices of USB interface, also must be respectively set up separately driver at system end, can bring into play its effect, cause it must rely in the computer system a dynamical processor to carry out above-mentioned driver, and need possess the storer of a suitable capacity in addition again, carry out the information transmitted package with storage.Above-mentioned all demands all cause considerable influence for the exploitation and the design of Internet appliance product, not only improve the complexity of product design and development, also significantly influence the hardware cost of product.
And on practice, because of the driver of developing various circumscribed USB interface arrangements quite complicated, and spacious day time-consuming, the manufacturer of design information household electrical appliances, that often selects wherein easily to support develops, and at present more common only have human-computer interface device and storage device two classes; Wherein comparatively popularize (please refer to shown in Figure 4) with the application of USB interface storage device again.
In view of this, if can develop a switching control wafer, be able to generally to be used for the mini memory card interface of numerical information field of household appliances, be converted to and support the required USB system end interface of the carry-on dish of USB, and by this control wafer, burden is supported the required complex software communications protocol of USB system end interface storage device, can make the carry-on dish product of USB break through the barrier that is confined to the PC application immediately, and be widely used in above-mentioned various portable digital device, and Internet appliance product etc.In addition, many to the greatest extent because of the carry-on dish product of USB again because of manufacturer, its price mini memory card that often specific storage is suitable lower and again can be easily exchange and transmission information on various PC, need rely on the situation of card reader or adapter than mini memory card, it is used and goes up the real higher convenience that possesses.
Summary of the invention
Fundamental purpose of the present utility model is intended to provide a kind of controller of tool mini memory card interface switching USB interface, by control wafer with mini memory card interface switching USB system end interface, make its can be with the numerical information household appliances by mini memory card interface as CF/MS/SD/MMC or other mini memory card etc., the instruction of the access information of being assigned, through suitable changing the mechanism, then being connected in the carry-on dish of USB of its USB interface, access reaches or other USB storage device, and then with result that access obtained, pass through suitable transfer process once again, and then pass the numerical information household appliances of access mini memory card interface back.
In order to achieve the above object, the controller of tool mini memory card interface switching USB interface of the present utility model, it has a switching controller, this switching controller is by having a small-sized memory interface that is connected with the inner mini memory card electric interfaces of information household appliances at least, one electric interfaces, instruction set and communications protocol in order to the simulation mini memory card is so that information household appliances access mini memory card instruction transfers the USB interface that the microprocessor of instruction set that the standard USB interface storage device can accept and communications protocol and a usefulness and USB storage device are transferred to; The access instruction that information household appliances can be assigned via mini memory card interface, by suitable changing the mechanism, the carry-on dish of USB that itself then access is connected in use USB interface and the data of relevant USB storage device.
Another order of the present utility model provides a kind of switching device that disposes above-mentioned switching controller, it is made of a device body and switching controller, wherein dispose a circuit board in the body in order to this switching controller of electrically connect, and the appropriate location of this circuit board is electrically connected with small-sized memory interface and USB interface respectively; The switching device of tool mini memory card interface switching USB interface can be achieved in view of the above, the mini memory card electric interfaces that is applied to information household appliances carry-on dish of access USB and USB relative storage device can be transferred by this switching device.
Description of drawings
It is the information household appliances function block schematic diagram of using the utility model switching controller that Fig. 1 illustrates;
What Fig. 2 illustrated is a function block schematic diagram of the utility model switching controller;
What Fig. 3 illustrated is function control flow synoptic diagram of the present utility model;
What Fig. 4 illustrated is known information household appliances function block schematic diagram.
The diagrammatical symbol explanation
1: switching controller
11: mini memory card interface
The 12:USB interface
13: microprocessor
14: the data buffer zone
15: the procedure code storer
16: electric power management circuit
The 17:PLL oscillating circuit
18: external memory interface
2: the mini memory card electric interfaces
The carry-on dish of 3:USB and or its relevant USB storage device
Embodiment
Below by graphic, figure number and cooperate illustrated detailed description more to be understood in depth technology contents of the present utility model and characteristics:
Please refer to Figure 1 and Figure 2, what illustrate in graphic is the function block schematic diagram of the utility model switching controller.Wherein, the controller of the utility model tool mini memory card interface switching USB interface can be widely used in various portable digital products and the information household appliances at present, it has a switching controller 1, and this controller 1 is at least by a mini memory card interface 11, a usb 12 and be connected in mini memory card interface 11 and the microprocessor 13 of 2 of usb 1s is constituted.
Wherein mini memory card interface 11 is used to be connected with the inner mini memory card electric interfaces 2 of information household appliances, usb 12 be in order to the carry-on dish of external USB and or its relevant USB storage device 3 connect, above-mentioned microprocessor 13 then is the electric interfaces in order to the mock standard mini memory card, instruction set and communications protocol, so that the little storage card instruction transformation of information household appliances access is become instruction set and the communications protocol that the standard USB interface storage device can be accepted, when making information household appliances assign access instruction, can be connected with mini memory card interface 11 by its mini memory card electric interfaces 2, impose suitable changing the mechanism by microprocessor 13, and utilize the storage area of USB storage device 3, information household appliances are intended the information of access, transfer instruction set and communications protocol that the standard USB interface storage device can be accepted to, and then the USB interface storage device that is external in usb 12 is carried out access action.
Among the embodiment according to the utility model employing, mini memory card interface 11 and 2 of usb 1s in this switching controller 1 dispose information transmission buffer zone 14, can use the usefulness that respectively mini memory card interface 11 and usb 12 is provided information transmission, can be equipped with procedure code storer 15 in addition in the switching controller 1 in order to deposit control microprocessor 13 simulation mini memory cards, carry out the control program of information transmission and access USB interface storage device.In addition, can be provided with electric power management circuit 16 and PLL oscillating circuit 17 in the switching controller 1 in addition to keep the operate as normal of switching controller.
In addition, space for the external information transmit buffering region memorizer that can increase, to improve transmission rate information, therefore in switching controller of the present utility model, be provided with external memory interface 18 in addition, make it be expanded external memory storage, improve buffer pool size, as the usefulness of data transmit buffer.
Next, please refer to shown in Figure 3, when the utility model application message household electrical appliances carry out Information Access, at first start its power supply and enter standby, the user inserts outside USB storage device, this moment, information household appliances promptly detected the insertion of circumscribed USB storage device, switching controller produces the plug-in card detection signal according to the mini memory card standard immediately and gives information household appliances, information household appliances begin to read and write operation after detecting mini memory card plant signal, when information household appliances are assigned access instruction, the microprocessor of switching controller is promptly simulated mini memory card to receive the reading command of information household appliances, and the read write command of this reception changed USB storage device by USB interface access outside, the steering order that this outside USB storage device is responded switching controller is relatively carried out transmission of Information by the information transmission buffer zone, treat information transmission finish after switching controller promptly enter armed state, the instruction of information household appliances simultaneously also is finished and enters standby and assign read write command once more to wait for.
In addition, above-mentioned USB storage device can be the silicon disk machine/hard disc/ZIP/MO/ CD-ROM device/relative storage devices such as soft disc player of USB interface.
Another embodiment that takes of the utility model, a kind of switching device (not shown) that disposes above-mentioned switching controller is provided, it is made of a switching controller, wherein body is that the configurable class mini memory card shape that is is (such as CF card (Compact Flash Card), SD card (SecureDigital Card), mmc card (Multi Media Card), MS card (Memory Stick Card) and have mini memory card of controller etc.), the utility model is illustrated with Compact flash Card (hereinafter to be referred as the CF card), wherein an end of such CF card is provided with a mini memory card interface, be used to carry out electrically connect with the mini memory card electric interfaces of information household appliances, the internal configurations of such CF card has a circuit board, in order to this switching controller of electrically connect and above-mentioned mini memory card interface, structure is provided with the USB interface that electrically connects with circuit board on the appropriate location of such CF card, this USB interface can get and the mini memory card electric interfaces that is applied to information household appliances can be transferred carry-on dish of access USB and USB relative storage device by this switching device in view of the above in order to connect with the carry-on dish (thumb) of USB interface and/or the storage device of relevant tool USB interface.
In addition, the setting of the USB interface of above-mentioned class CF card can be the USB pattern of built-in and tool cable.
Comprehensive the above as can be known, the controller of this kind tool mini memory card interface switching USB interface of the present utility model, the effect and the design that can reach expection are really considered, and this case utility model is not seen public use, the regulation that meets patent progressive important document, therefore proposing patented claim in accordance with the law, please early grant quasi patent, is that institute is to expecting.
What need Chen Ming is that the above is that this creates a preferable specific embodiment, the change that the conception of Ruo Yiben creation is done, the function of its generation is to replace to use, and when not exceeding instructions and the graphic scope that contains yet, all should in scope of the present utility model, give in Chen Ming at this.
Claims (9)
1, a kind of controller of tool mini memory card interface switching USB interface, it is characterized in that: have a small-sized memory interface that is connected with the inner mini memory card electric interfaces of information household appliances at least, an electric interfaces in order to the simulation mini memory card, instruction set transfer the USB interface that instruction set that the standard USB interface storage device can accept and the microprocessor and a usefulness of communications protocol are connected with the USB storage device with communications protocol to so that information household appliances access mini memory card instructs; So that the access instruction that information household appliances can be assigned via mini memory card interface, by suitable the changing the mechanism of microprocessor, the carry-on dish of USB that itself then access is connected in use USB interface and the data of relevant USB storage device.
2. the controller of tool mini memory card interface switching USB interface according to claim 1, it is characterized in that: between mini memory card interface and USB interface, dispose the information transmission buffer zone, can use respectively the give information usefulness of transmission of mini memory card interface and USB interface.
3. the controller of tool mini memory card interface switching USB interface according to claim 1 and 2 is characterized in that: can be equipped with the procedure code storer in the switching controller in order to deposit the control program that control microprocessor is simulated mini memory card, carried out information transmission and access USB interface storage device.
4. the controller of tool mini memory card interface switching USB interface according to claim 1 and 2 is characterized in that: can be provided with electric power management circuit and/or PLL oscillating circuit in the switching controller in addition to keep the operate as normal of switching controller.
5. the controller of tool mini memory card interface switching USB interface according to claim 1, it is characterized in that: be provided with external memory interface in the switching controller, make its external memory storage that increased, improve buffer pool size, as the usefulness of data transmit buffer.
6. the controller of tool mini memory card interface switching USB interface according to claim 1, it is characterized in that: the USB storage device can be the silicon disk machine/Hard Disk Drive/CD-ROM device/disk drive of tool USB interface.
7. the controller of tool mini memory card interface switching USB interface according to claim 1, it is characterized in that: this switching controller can be by the interior class mini memory card that is built in, one end of such storage card is provided with a mini memory card interface, be used to carry out electrically connect with the mini memory card electric interfaces of information household appliances, and the internal configurations of card has a circuit board, in order to this switching controller of electrically connect and above-mentioned mini memory card interface, structure is provided with the USB interface that electrically connects with circuit board on the appropriate location of such mini memory card, this USB interface can be transferred carry-on dish of access USB and USB relative storage device with the mini memory card electric interfaces that is applied to information household appliances by being got by this switching device in view of the above in order to connect with the thumb (dish with oneself) and/or the storage device of relevant tool USB interface of USB interface.
8. the controller of tool mini memory card interface switching USB interface according to claim 7 is characterized in that: the mini memory card form that such mini memory card can be CF card, SD card, mmc card, MS card and has controller.
9. the controller of tool mini memory card interface switching USB interface according to claim 7, it is characterized in that: the design of the USB interface of class mini memory card can be the USB pattern of built-in and tool cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03208407 CN2679742Y (en) | 2003-08-25 | 2003-08-25 | Controller having transfer USB interface for small memory card interface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03208407 CN2679742Y (en) | 2003-08-25 | 2003-08-25 | Controller having transfer USB interface for small memory card interface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2679742Y true CN2679742Y (en) | 2005-02-16 |
Family
ID=34580247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03208407 Expired - Fee Related CN2679742Y (en) | 2003-08-25 | 2003-08-25 | Controller having transfer USB interface for small memory card interface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2679742Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8209452B2 (en) | 2008-11-17 | 2012-06-26 | Prolific Technology Inc. | External device having a virtual storage device |
-
2003
- 2003-08-25 CN CN 03208407 patent/CN2679742Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8209452B2 (en) | 2008-11-17 | 2012-06-26 | Prolific Technology Inc. | External device having a virtual storage device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6636918B1 (en) | Mobile computing device and associated base stations | |
| CN1099064C (en) | Keyboard-touchpad combination in a bivalve enclosure | |
| CN101174245B (en) | Methods and arrangements for hybrid data storage and hybrid storage device | |
| CN1113365C (en) | Two port memory for simultaneously inputting and outputting data | |
| CN1040587C (en) | Interface circuit for CD-ROM drive | |
| CN102646088A (en) | External bridge system | |
| KR102102177B1 (en) | Semiconductor device and method for operating the same | |
| CN105893036A (en) | Compatible accelerator extension method for embedded system | |
| CN105955919A (en) | Implementation method of reading-writing NANDFlash by multiple MCUs based on FPGA (Field Programmable Gate Array) | |
| CN2679742Y (en) | Controller having transfer USB interface for small memory card interface | |
| US7377432B2 (en) | Interface converting apparatus | |
| CN109614086B (en) | GPU texture buffer area data storage hardware and storage device based on SystemC and TLM models | |
| CN1241096C (en) | IDE hard disc interface for supporting hot inserting and startup as inserting memory card | |
| CN2567638Y (en) | Multifunction read-write apparatus of computer | |
| CN2518143Y (en) | Computer backing plate with drawing acceleration terminal | |
| CN100336064C (en) | Universal dot matrix liquid crystal display controller and its application software developing system | |
| CN100397409C (en) | Virtual USB interface card reader with high-speed peripheral parts interconnected bus | |
| CN2605635Y (en) | General lattice liquid crystal display device and its application software developing system | |
| CN113052288B (en) | SD card automatically adapting to upper computer for reading and writing and automatic adapting method thereof | |
| CN111580816B (en) | Intelligent tablet terminal based on interactive graphic software | |
| CN100397408C (en) | Card reader with PCI express bus | |
| CN1873634A (en) | Card controller, and method for controlling IC card | |
| JP3107448U (en) | Display expansion device used in portable information devices | |
| CN100489736C (en) | Method for accessing battery state by operation system of portable computer | |
| CN200986810Y (en) | Optical disk rewritable integrated machine for supporting USB2.0, 1394 live wire and memory card temporary storage |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |