CN1277169C - Portable storage device - Google Patents
Portable storage device Download PDFInfo
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- CN1277169C CN1277169C CN 200310118871 CN200310118871A CN1277169C CN 1277169 C CN1277169 C CN 1277169C CN 200310118871 CN200310118871 CN 200310118871 CN 200310118871 A CN200310118871 A CN 200310118871A CN 1277169 C CN1277169 C CN 1277169C
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- memory storage
- usb
- operator scheme
- host mode
- processing unit
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Abstract
The present invention relates to a portable memory which can be switched between a first operation mode and a second operation mode. The memory comprises a connection unit, a processing unit, a memory and a display, wherein the connection unit can receive electric signals, and the memory is used for accessing data; the processing unit is selectively switched between the first operation mode and the second operation mode according to electric signals, and accesses data according to switched operation mode; the display can display the control and state information of the memory.
Description
Technical field
The present invention is meant the current value by a USB especially relevant for a portable memory storage, judges this portable memory storage operator scheme.
Background technology
Along with USB is widely used in the transmission aspect of data, because of its transmission speed fast, and have the function of plug and play, do not need the peripherals of computing machine to be brought computing machine characteristic easily such as start shooting again into a new application epoch.Such as the transmission interface of data such as general CD-ROM drive, cd-rom recorder or digital audio tape, computing machine and digital camera, all be to have adopted USB interface.So the application of USB has been an indispensable ring in our life at present.
Wherein, the internal memory major part of general digital camera is all less than 256M, when the memory size in the digital camera uses up, the user can be downloaded to the image file in the digital camera in the computing machine, it is required that the memory capacity of general 256M still can not satisfy the user, so there is a kind of miniature external hard drive device that bigger memory capacity (being about 20G) can be provided at present, and the image file in the downloaded stored digital camera can be provided and provide and upload image file to computing machine, but this miniature external hard drive device must judge need be executed under which kind of mode of operation voluntarily by the user, by the appended switch of this memory storage, switch in the needed mode of operation.
Above-mentioned mode needs the user to judge voluntarily, inconvenience very, and the present invention can provide a portable memory storage, judges automatically and switches in the needed mode of operation by an electric signal.
Summary of the invention
Fundamental purpose of the present invention is automatically to select to enter host mode or device pattern and to read file or transmit file by judging an electric signal.
In order to achieve the above object, portable memory storage of the present invention includes: a linkage unit, a processing unit, an internal memory, an electric storage unit and a display.This linkage unit receives an electric signal, power supply supply in this electricity storage unit supply portability memory storage, this processing unit is coupled to this linkage unit and is one first pattern, according to judging that the big or small changeable of this electric signal is one second pattern, this internal memory is coupled to this processing unit and canned data, this display can show the information in this internal memory, and this processing unit switches the pattern of this processing unit by the size decision of this electric signal.
Description of drawings
For structure purpose of the present invention and effect can further be understood and approval, cooperate diagram to be described in detail below.
Fig. 1 is portable memory storage preferred embodiment of the present invention.
Fig. 2 is portable memory storage of the present invention and the coacting synoptic diagram of a digital camera.
Fig. 3 is portable memory storage of the present invention and the coacting synoptic diagram of a mobile computer.
Wherein description of reference numerals is as follows: the portable memory storage of 1-; 11-USB (universal serial bus) (USB); The 12-processing unit; The 13-internal memory; The 14-display; The 15-battery; The 2-mobile computer; The USB (universal serial bus) of 21-mobile computer (USB); The 3-digital still camera; The USB (universal serial bus) of 31-digital camera (USB).
Embodiment
See also shown in Figure 1, portable memory storage preferred embodiment of the present invention, it includes: a USB (universal serial bus) (Universal Serial Bus) 11, one processing unit 12, an internal memory 13, a battery 15 and a LCD Panel 14.
In this preferred embodiment, after connecting external device (ED), USB (universal serial bus) 11 can receive an electric signal, and electric signal is (USB 1.1 or USB 2.0) defined current value in the universal serial bus specification.Processing unit 12 is coupled to USB (universal serial bus) (USB) 11 and is preset as a host mode earlier, running is when host mode, can be automatically with external device (ED) that portable memory storage 1 is connected in data be sent to internal memory 13, processing unit 12 is according to the electric signal that receives in addition, portable memory storage 1 can be switched to a device pattern, running can be automatically be sent to external device (ED) with the data of internal memory 13 in the device pattern.When host mode, battery 15 supply processing units 12, internal memory 13 and LCD screen 14 power supplys.Display is a LCD Panel 14, but the internal information of display memory 13 or image file, as personage, picture with scenes and so on, and the operator scheme that also can show memory storage 1, when host mode, external device (ED) then can be with the automatic data transmission in it to this portable memory storage 1.
See also shown in Figure 2ly, it is portable memory storage of the present invention and the coacting preferred embodiment of a digital camera.Numeral camera 3 has a USB (universal serial bus) (USB) 31, can be with the image data output or the input of digital camera 3 by USB (universal serial bus) (USB) 31.The USB (universal serial bus) (USB) 11 of portable memory storage 1 is connected to the USB (universal serial bus) (USB) 31 o'clock of digital camera, generally speaking, main battery-powered device such as digital camera or mobile phone belongs to peripheral unit, not externally power supply, when other device, as computing machine, when being connected to digital camera, digital camera is a peripheral unit, and computing machine is a host apparatus, peripheral unit can be drawn the electric current of host apparatus, simultaneously, host apparatus can control data the direction of stream, and the assembly of device pattern is controlled by the assembly that is subjected to host mode of passive type, therefore, the USB (universal serial bus) (USB) 31 that connects digital camera when portable memory storage 1 can produce one first electric current, first electric current has a current value (being about 0.5 ampere), this electric current is provided by above-mentioned battery 15, processing unit 12 just can detect this current value, and then learn that portable memory storage 1 is to be connected with digital camera 3, processing unit 12 just can automatically switch portable memory storage 1 to host mode, in this pattern, portable memory storage 1 can be stored to the image file of this digital camera 3 internal memory 13 of portable memory storage 1 automatically, and can show that this image file and portable memory storage 1 operate in the host mode at present in LCD Panel 14.
Please refer to Fig. 3, USB (universal serial bus) of portable memory storage of the present invention (USB) and the coacting preferred embodiment of a mobile computer.This mobile computer 2 has at least one USB (universal serial bus) (USB) 21, and can pass through USB (universal serial bus) (USB) 21 transmission data, when the USB (universal serial bus) (USB) 11 of portable memory storage 1 is connected to the USB (universal serial bus) (USB) 21 of computing machine, the USB (universal serial bus) of mobile computer (USB) 21 can produce one second electric current, no matter generally speaking be that battery is supplied with or external power supply, the power supply of mobile computer is all peripheral sufficient than external, therefore mobile computer is all done the use of main frame pattern, can not absorb power supply to the device that USB externally connects, though so second electric current that external portable memory storage 1 is produced has a current value, but this current value levels off to 0 volt, this moment, this processing unit 12 was just by detecting second electric current, and then learn that portable memory storage 1 is to be connected with mobile computer 2, this processing unit 12 can automatically switch to the device pattern, external portable memory storage 1 can use the power supply of mobile computer 2, therefore battery 15 can be stopped power supply, in the device pattern, portable memory storage 1 can be automatically be sent to the image file of internal memory 13 in the mobile computer 2, or mobile computer 2 is used as external portable memory storage 1 as an outside harddisk access, after finishing using, remove the USB (universal serial bus) (USB) 21 of mobile computer, processing unit 12 can be back to host mode with portable memory storage 1 switching; Processing unit 12 in addition can be according to inner setting one reference value, and the current value size according to detecting on the universal serial bus 21 decides portable memory storage 1 at device pattern or host mode.
From the above, portable memory storage 1 can reach really and automatically switches to required mode of operation, and need not switch voluntarily by the user, can overcome the defective of prior art really, satisfies the demand of industrial community, and improves industrial competitiveness.The above only is preferred embodiment of the present invention, can not limit the scope that the present invention is implemented with it.All equalizations of doing according to claim of the present invention change and modify, and all should belong in the scope that patent of the present invention covers.
Claims (12)
1. a portable memory storage has switchable first operator scheme and second operator scheme, is used to be connected to external device (ED), and this memory storage includes:
Linkage unit can receive the electric signal between this external device (ED) and this portable memory storage;
Internal memory is in order to access data;
Processing unit is coupled to this linkage unit and this internal memory, optionally does switching between this first and second operator scheme according to this electric signal, and complies with the operator scheme of being switched and carry out the access of data.
2. memory storage as claimed in claim 1 also comprises display, is coupled to this processing unit, in order to control and the status information that shows this memory storage.
3. memory storage as claimed in claim 1, wherein this linkage unit is USB (universal serial bus) (USB).
4. memory storage as claimed in claim 1, wherein this electric signal is an electric current.
5. memory storage as claimed in claim 1, wherein this first operator scheme is a host mode, in this host mode, this processing unit reads in data in this external device (ED) by this linkage unit, is stored in this internal memory.
6. memory storage as claimed in claim 1, wherein this second operator scheme is the device pattern, in this device pattern, this processing unit is sent the data that exist in this internal memory in this external device (ED) by this linkage unit.
7. memory storage as claimed in claim 4, wherein this first operator scheme is that host mode and this second operator scheme are the device pattern.
8. memory storage as claimed in claim 7, when this current value during greater than a reference value, this portable memory storage is this host mode.
9. memory storage as claimed in claim 7, when this current value during less than a reference value, this portable memory storage is this device pattern.
10. memory storage as claimed in claim 1, wherein this second operator scheme is the device pattern, and in this device pattern, this external device (ED) is a host mode, and initiatively access should this portable memory storage.
11. memory storage as claimed in claim 5 also comprises battery, when this portable memory storage is in this host mode, provides the power supply supply.
12. memory storage as claimed in claim 7, when deserving memory storage when separating with this external device (ED), this memory storage is this host mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310118871 CN1277169C (en) | 2003-12-01 | 2003-12-01 | Portable storage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310118871 CN1277169C (en) | 2003-12-01 | 2003-12-01 | Portable storage device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1624629A CN1624629A (en) | 2005-06-08 |
| CN1277169C true CN1277169C (en) | 2006-09-27 |
Family
ID=34761227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200310118871 Expired - Fee Related CN1277169C (en) | 2003-12-01 | 2003-12-01 | Portable storage device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1277169C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102495712B1 (en) | 2018-06-27 | 2023-02-06 | 후아웨이 테크놀러지 컴퍼니 리미티드 | Methods for switching storage systems and operating modes of storage systems |
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2003
- 2003-12-01 CN CN 200310118871 patent/CN1277169C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1624629A (en) | 2005-06-08 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060927 Termination date: 20101201 |