CN1612098A - Portable flash device capable of directly exchanging storage data - Google Patents
Portable flash device capable of directly exchanging storage data Download PDFInfo
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- CN1612098A CN1612098A CN 200310102625 CN200310102625A CN1612098A CN 1612098 A CN1612098 A CN 1612098A CN 200310102625 CN200310102625 CN 200310102625 CN 200310102625 A CN200310102625 A CN 200310102625A CN 1612098 A CN1612098 A CN 1612098A
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- flash memory
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Abstract
The invention relates to a carriable flash memory device that can directly exchange storage data, containing a control chip established with two interface conversion mechanisms, a flash memory connected with the control chip, a USB connection port and an auxiliary connection port and a battery; because the control chip has a power supply, it can connect with an auxiliary connection port of the other flash memory device through the auxiliary connection port to make data exchange, and thus the invention is a directly exchanging storage medium. By this, the invention needs no computer or other electric devices to transfer but can be considerably convenient to make data exchange.
Description
Technical field
The present invention relates to a kind of Portable flash memory device that can directly exchange storage data, refer to especially a kind of can be mutually direct swap data, and need not Portable flash memory device by the computing machine dump.
Background technology
In the epoch of information prosperity now, the demand of digital data exchange grows with each passing day, and the exchange of numerical data can be finished the purpose of its exchanges data by different modes (as network) or Storage Media.
Early stage computing machine is development stages just, because the swap data file size is little, so the disk of general 1.44M capacity is quite popular, but, variation along with electronic data format, general numerical data capacity is quite big, makes the 1.44M disk not apply and use that replacing then is present USB flash memory device.Because the skillful and output of Storage Media and USB interface control chip technology is big, having little, convenient use in addition of volume and USB again is the advantages such as standard interface of general computing machine, makes the Portable USB flash memory device become popular exchanges data/Storage Media.
Yet the USB flash memory device is a kind of passive storage device, so as shown in Figure 6, still must rely on computing machine 60 or other electronic installation with operation processing function is used, and could make two rapid memory devices, 50,51 exchange storage datas.Yet,, very likely occur in the situation that but needs to carry out exchanges data (as the exchanges data of two storage devices) under the environment that does not have computing machine for often being carried at the outer USB flash memory device that uses.But as previously mentioned, the USB flash memory device is a kind of passive storage device, therefore, also can't directly exchange numerical data between the two USB flash memory devices, and cause the inconvenience of user's dump file virtually.
Summary of the invention
Fundamental purpose of the present invention is to overcome the deficiencies in the prior art and defective, a kind of Portable flash memory device of directly swap data is provided, make this Portable flash memory device can directly pass data each other mutually, and need not to reprint by computing machine or other electronic installation with processor.
Desiring to reach the employed major technique means of above-mentioned purpose is, the control chip that makes this portable flash memory include having two interface conversion mechanism in, a flash memory that is connected with control chip, two usb connecting ports that are connected with control chip respectively, auxiliary connectivity port and the battery of aforementioned electronic element working power is provided; Because this control chip is connected with auxiliary connectivity port, so portable flash memory device of the present invention can also possess the flash memory device binding of auxiliary connectivity port by auxiliary connectivity port and another, directly to carry out data-switching and transmission;
Above-mentioned control chip also has another interface conversion mechanism except the translation function of basic USB interface, the power supply design that cooperates the present invention to supply voluntarily is so can carry out the function of data-switching on one's own initiative; Thus, can make the flash memory device that originally only has passive memory function, direct active access data each other with another same form flash memory device binding need not to carry out exchanges data by computing machine or electronic installation with processing capacity.
Another purpose of the present invention is under the condition that does not change original flash memory device inner control chip internal setting, increase by a microprocessor, this microprocessor is connected between flash memory and auxiliary connectivity port, and in have the satellite interface specification and change the mechanism, promptly, if two flash memory devices carry out exchanges data each other, then carry out data-switching and transmission or receive storing by auxiliary connectivity port by microprocessor, so, the present invention carries out the conversion process of another interface with microprocessor, so do not need to add changing the mechanism of other interface, thus, make the present invention be easier to implement at control chip.
Description of drawings
Fig. 1 is a block schematic diagram of first preferred embodiment of the present invention;
Fig. 2 is the auxiliary connectivity port pin connection diagram of the present invention's two flash memory devices;
Fig. 3 transmits sequential chart for the data of the auxiliary connectivity port of the present invention;
Fig. 4 is a block schematic diagram of second preferred embodiment of the present invention;
Fig. 5 is the connection diagram of the present invention's two flash memory devices;
Fig. 6 is the connection diagram of existing two flash memory devices and computing machine, discloses two flash memory devices and carries out the connection diagram that data transmit by computing machine.
Symbol description among the figure
10,10 ' flash memory device
12 control chips
13 flash memories
14 usb connecting ports
15 auxiliary connectivity ports
16 microprocessors
17 batteries
20,20 ' flash memory device
22 control chips
23 flash memories
24 usb connecting ports
25 auxiliary connectivity ports
26 microprocessors
27 batteries
50 flash memory devices
51 flash memory devices
60 computing machines
Embodiment
The present invention is a kind of Portable flash memory device that can carry out data exchanging function voluntarily that has, see also shown in Figure 5, two flash memory devices of the present invention can carry out data by specific interface connectivity port to be reprinted, and need not to rely on computing machine or other has the electronic installation of usb connecting port and calculation function.
At first see also shown in Figure 1ly, Portable flash memory 10 includes:
One control chip 12, in have that a USB interface is changed the mechanism and a satellite interface is changed the mechanism;
One flash memory 13 is connected with control chip 12;
One usb connecting port 14 is connected with control chip 12, connects for outside USB interface device (not shown), carries out data storing by 12 pairs of flash memories of control chip 13;
One auxiliary connectivity port 15, be connected with control chip 12, sacrificial vessel has the connectivity port of same-interface to connect, and this auxiliary connectivity port 15 includes a clock pulse signal end (Clock), a data transfer (data), an earth terminal (GND) and an access command input/output terminal (Regin/Regout); Should assist the data transfer (data) of connectivity port 15 to look the interface specification kind and can be odd number or most end, that is, this auxiliary connectivity port 15 can be IIC, SPI connecting interface, and wherein this IIC is a serial transmission interface, and SPI then is the parallel transmission interface;
At least one battery 17, the working power of supplying above-mentioned electronic component;
The control chip 12 of above-mentioned Portable flash memory 10 includes that two USB interface are changed the mechanism and satellite interface conversion system machine, cooperate and be equiped with battery 17, so have working power, therefore, this control chip 12 can be with the digital data conversion of flash memory 13 the special interface specification (as, USB, IIC, SPI interface).That is, if flash memory device 10 of the present invention is connected with the external USB interface, then control chip 12 flash memory 13 is carried out data access, and access procedure is converted to usb compliant with data according to the control command of outside input.Otherwise flash memory device 10 is connected with auxiliary connectivity port 15 same size interfaces, and then control chip 12 can carry out the conversion and the transmission of satellite interface specification to flash memory 13, makes numerical data externally transmit or to store by auxiliary connectivity port 15.
Seeing also Fig. 2 and shown in Figure 5, is the online synoptic diagram of pin of auxiliary connectivity port 15, the 25 transmission data of two flash memory devices 10,20.Because the exchange of data is carried out in two auxiliary connectivity ports 15,25, so the access command output terminal (Regout) of the first auxiliary connectivity port 15 is connected to the access command input end (Regin) of the second auxiliary connectivity port 25, the access command input end (Regin) of the first auxiliary connectivity port 15 then is the access command output terminal (Regout) that is connected to this second auxiliary connectivity port, and remaining pin (clock signal end (Clock), data transfer (data) and an earth terminal (GND)) then is corresponding the connection.
See also shown in Figure 3ly, be the sequential chart that first flash memory device carries out data access.When first flash memory device, 10 desires are carried out data acquisition to second flash memory device 20, the control chip 11 of this first flash memory device 10 can be by access command output terminal (Regout) output one high potential signal of the first auxiliary connectivity port 15, and the control chip 20 of second flash memory device 20 can be obtained a high potential signal by access command input end (Regin), and the control chip 22 of second flash memory device 20 is promptly at once by access control order output terminal (Regout) output one high potential signal, with the control chip 12 of informing first flash memory device 10, agree to carry out the output of data, when when informing that first flash memory device, 10 control chips 12 are obtained a high potential signal by the access command input end (Regin) of auxiliary connectivity port 15, promptly begin to carry out the reception/conversion of data, and input to flash memory 13.
See also shown in Figure 4ly, be another preferred embodiment of the present invention, its structure with a last embodiment is identical, and promptly this flash memory device 10 ' mainly increases by a microprocessor 16.The microprocessor 16 of present embodiment is connected with auxiliary connectivity port 15 and flash memory 13, and in have a satellite interface and change the mechanism, control chip 12 then has general USB interface in only changes the mechanism; Use and keep the control chip setting of flash memory device originally.That is this control chip 12 mainly carries out the conversion of USB interface data, and the satellite interface conversion of auxiliary connectivity port 15 is then carried out by microprocessor 16, and promptly the pin correspondence of auxiliary connectivity port 15 is connected to the output/input end of this microprocessor 16.
By as can be known aforementioned, the present invention proposes two kinds of embodiment with auxiliary connectivity port, and cooperate the control chip of original flash memory device or increase by a microprocessor, make flash memory device pass through auxiliary connectivity port, become an initiatively device of access, that is, two flash memory devices with auxiliary connectivity port can be by the butt joint of auxiliary connectivity port, and directly carry out the exchange of data by control chip or microprocessor, need not to exchange by computing machine or other electronic installation with USB interface.
Claims (8)
1. the Portable flash memory device that can directly exchange storage data is characterized in that, includes:
One control chip, in have that a USB interface is changed the mechanism and a satellite interface is changed the mechanism;
One flash memory is connected with control chip, in order to store digital data;
One usb connecting port is connected with control chip, connects for the external USB interface;
One auxiliary connectivity port is connected with control chip, and sacrificial vessel has the connectivity port of same-interface to connect; And
At least one battery, the working power of supplying above-mentioned electronic component.
2. can directly exchange the Portable flash memory device of storage data according to claim 1, wherein, this auxiliary connectivity port includes a clock pulse signal end, a data transfer, an earth terminal and an access command I/O end.
3. as can directly exchanging the Portable flash memory device of storage data as described in the claim 2, wherein, this auxiliary connectivity port is an IIC serial transmission interface.
4. as can directly exchanging the Portable flash memory device of storage data as described in the claim 2, this auxiliary connectivity port is a SPI transmission interface arranged side by side.
5. the Portable flash memory device that can directly exchange storage data is characterized in that, includes:
One control chip, in have a USB interface and change the mechanism;
One microprocessor, in have a satellite interface and change the mechanism;
One flash memory is connected with control chip and microprocessor, in order to store digital data;
One usb connecting port is connected with control chip, connects for the external USB interface;
One auxiliary connectivity port is connected with control chip, and sacrificial vessel has the connectivity port of same-interface to connect; And
At least one battery, the working power of supplying above-mentioned electronic component.
6. as can directly exchanging the Portable flash memory device of storage data as described in the claim 5, wherein, this auxiliary connectivity port includes a clock pulse signal end, a data transfer, an earth terminal and an access command input/output terminal.
7. as can directly exchanging the Portable flash memory device of storage data as described in the claim 6, this auxiliary connectivity port is an IIC serial transmission interface.
8. as can directly exchanging the Portable flash memory device of storage data as described in the claim 6, this auxiliary connectivity port is a SPI transmission interface arranged side by side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310102625 CN1612098A (en) | 2003-10-27 | 2003-10-27 | Portable flash device capable of directly exchanging storage data |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310102625 CN1612098A (en) | 2003-10-27 | 2003-10-27 | Portable flash device capable of directly exchanging storage data |
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| CN1612098A true CN1612098A (en) | 2005-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200310102625 Pending CN1612098A (en) | 2003-10-27 | 2003-10-27 | Portable flash device capable of directly exchanging storage data |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101083132B (en) * | 2006-05-31 | 2011-11-23 | 株式会社东芝 | Semiconductor memory device and data transmission method thereof |
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2003
- 2003-10-27 CN CN 200310102625 patent/CN1612098A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101083132B (en) * | 2006-05-31 | 2011-11-23 | 株式会社东芝 | Semiconductor memory device and data transmission method thereof |
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