CN1260634C - Universal series connected bus shiftable magnet disc - Google Patents
Universal series connected bus shiftable magnet disc Download PDFInfo
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- CN1260634C CN1260634C CN 03100208 CN03100208A CN1260634C CN 1260634 C CN1260634 C CN 1260634C CN 03100208 CN03100208 CN 03100208 CN 03100208 A CN03100208 A CN 03100208A CN 1260634 C CN1260634 C CN 1260634C
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- serial bus
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Abstract
The present invention relates to a universal serial bus movable magnetic disc connected in series. The movable magnetic disc is provided with an upstream interface and a downstream interface, so the movable magnetic disc is favorably connected in series with other movable magnetic discs or is connected with the multilayer topology of downstream universal serial bus peripheral equipment. The inner part is provided with a switching circuit, and when a device inserted into the downstream interface is the other universal serial bus movable magnetic disc connected in series, the switching circuit executes a concatenation control function to make storing devices of two movable magnetic discs connected in series. When common universal serial bus peripheral equipment is inserted, the switching circuit becomes a universal serial bus concentrator by changing configuration, so the storing devices and the downstream universal serial bus peripheral equipment can be respectively communicated with a main machine of a computer.
Description
Technical field
The present invention relates to a kind of universal series connected bus shiftable magnet disc, particularly a kind of storage device that is applicable to USB (universal serial bus) (Universal Serial Bus is hereinafter to be referred as USB) interface.
Background technology
The built-in function square of prior USB mobile disk generally is to connect flash memory (F1ash Memory) 9 with a usb circuit 8 to form as shown in Figure 5.Wherein, the data that is stored in flash memory 9 can be communicated with the usb bus of main frame by usb circuit 8, finishes the data transmission action.
Because early stage flash memory technology is undeveloped, its capacity can't be done very greatly, makes that the capacity of early stage mobile disk is quite limited.Even to this day, the flash memory technology progress, the multimedia messages ever-growing use, the capacity of early stage mobile disk has not applied and has used, need buy jumbo mobile disk again, old equipment promptly abandon and need not, just as waste, thereby the mobile disk Technology Need of a new generation a kind ofly can be connected in series use mutually to expand the method for existing memory capacity.On the other hand, two USB socket are reserved at the general main frame back side, if peg graft a general USB mobile disk, then the USB device that can peg graft again is only surplus one, if will further expand, then need use usb hub (hereinafter to be referred as HUB), add equipment cost, increase the inconvenience on using.Therefore, the mobile disk technology of a new generation is badly in need of considering the extendibility problem, such as reserving the USB peripherals of USB socket with convenient other downstream of pegging graft.
Summary of the invention
Fundamental purpose of the present invention is to provide a kind of series connected USB mobile disk at above-mentioned problem.This mobile disk has the upstream and downstream interface, helps being connected with the mutual serial connection of other mobile disk or with the multilayer topology of other downstream USB device.This mobile disk inside has a change-over circuit, and when the device that inserts downstream interface be another series connected USB mobile disk, this change-over circuit was carried out serial connection control function, so that the memory storage of two mobile disks is connected in series; When insert be general USB device the time, it is a USB HUB that this change-over circuit changes its configuration, the action of execution hub is so that the USB peripherals in memory storage and downstream can be respectively carried out communication with the usb bus of main frame.
For realizing above-mentioned goal of the invention, the present invention adopts following technical scheme:
A kind of universal series connected bus shiftable magnet disc comprises a Upstream Interface, USB (universal serial bus) circuit and memory storage, it is characterized in that this mobile disk also comprises a downstream interface and a change-over circuit; Described Upstream Interface is connected with the USB (universal serial bus) socket of upstream universal serial bus device or main frame; Described downstream interface is connected with other downstream USB (universal serial bus) peripherals or other traditional generic movable magnet disk for serial bus; Described change-over circuit connects described upstream and downstream interface and USB (universal serial bus) circuit, and described USB (universal serial bus) circuit connects described change-over circuit and memory storage; Described change-over circuit is changed between serial connection control circuit configuration and universal serial bus concentrator configuration according to the device that described downstream interface connects.
The present invention is quite convenient in the use, and each mobile disk is reserved downstream interface 12, can be connected in series use mutually, expands memory capacity; Each mobile disk also can remove separately and use in the mode of low capacity.In the arrangement of expanding memory capacity, when change-over circuit 2 is carried out the serial connection control function, can be according to the interior label of the flash memory in the mobile disk 4 as order, the execution data read write activity, to form a virtual big capacity hard disk, the user can not worry the grafting order of each mobile disk, and controls the data storage order or the flow direction by the firmware program code of each mobile disk inside.On the other hand, the equipment that mobile disk of the present invention also can be inserted according to downstream interface 12 automatically switches to USB HUB, thereby can infinitely expand USB peripherals in the mode of hot plug, and is quite convenient in the use.
In sum, universal series connected bus shiftable magnet disc of the present invention is quite to have practicality and creationary product.
Description of drawings
The present invention is further illustrated below in conjunction with the drawings and specific embodiments.
Fig. 1 is an outside drawing of the present invention.
Fig. 2 is a functional block diagram of the present invention.
Fig. 3 is the workflow diagram one of the present invention when using.
Fig. 4 is the workflow diagram two of the present invention when using.
Fig. 5 is the functional block diagram of prior USB mobile disk.
Embodiment
Figure 1 shows that the outside drawing of series connected USB mobile disk of the present invention.Its inner function mainly has as shown in Figure 2, Upstream Interface 11, downstream interface 12, change-over circuit 2, usb circuit 3 and flash memory 4.Wherein downstream interface 12 also can be positioned at side or other position of this USB mobile disk.
Wherein Upstream Interface 11 is in order to the USB device of connection upstream or the USB socket of main frame, to form the starlike topological structure of multilayer that the USB system is adopted: and downstream interface 12 is in order to connect other downstream USB peripherals or USB HUB, to make things convenient for the expansion of USB device.
Usb circuit 3 connects change-over circuit 2 and flash memory 4, is beneficial to use USB host-host protocol (Protocol) to carry out the transmission of data.
Change-over circuit 2 connects upstream and downstream interface 11,12 and usb circuit 3.This change-over circuit 2 according to downstream interface 12 inserted for which kind of device switches its configuration, be converted to difference in functionality, its concrete judgement flow process as shown in Figure 3, Figure 4.As shown in Figure 3, after inserting mobile disk USB-DriveB, at first judge the size and the order of its memory storage, firmware setting USB-Drive B memory storage is its virtual store then, externally be shown as Memory=Memory A+Memory B, can carry out storage operation thus.As shown in Figure 4, when insert be miscellaneous equipment the time, at first judge whether it is the USB-Drive mobile disk, if insert PC by bypass channel; If not, then mobile disk USB-Drive A still carries out storage operation.When the device that inserts downstream interface 12 is another series connected USB mobile disk or other traditional USB mobile disk, this change-over circuit 2 is carried out the serial connection control function, whether the flash memory that its inner firmware program code is at first differentiated new insertion mobile disk has interior label, then fills vacancies in the proper order a new mark to new flash memory with existing order as if unmarked backward; If the underlined order of then differentiating between itself and the existing flash memory.Backward for the storage in the mobile disk, the firmware program of each disk inside is promptly controlled the data storage order with this flag sequence, thereby form a large-scale single virtual storage area, especially when store files of a flash memory space less than, this store files is promptly cut apart and is across in another flash memory stores space that is connected in series mutually.Therefore, can not worry the grafting order of each mobile disk when the user carries out data storage fully, when reading archives, can peg graft arbitrarily.On the other hand, when insert be general USB device the time, the usb bus controller (USB Host Controller) of these change-over circuit 2 notice main frames, changing its configuration is a USB HUB, execution hub action is so that the USB peripherals in flash memory 4 and downstream can be respectively carried out communication with the usb bus of main frame.
Claims (3)
1. a universal series connected bus shiftable magnet disc comprises a Upstream Interface, USB (universal serial bus) circuit and memory storage, it is characterized in that:
This mobile disk also comprises a downstream interface and a change-over circuit; Described Upstream Interface is connected with the USB (universal serial bus) socket of upstream universal serial bus device or main frame; Described downstream interface is connected with other downstream USB (universal serial bus) peripherals or other traditional generic movable magnet disk for serial bus; Described change-over circuit connects described upstream and downstream interface and USB (universal serial bus) circuit, and described USB (universal serial bus) circuit connects described change-over circuit and memory storage; Described change-over circuit is changed between serial connection control circuit configuration and universal serial bus concentrator configuration according to the device that described downstream interface connects.
2. universal series connected bus shiftable magnet disc as claimed in claim 1 is characterized in that: the memory storage in the described disk is a flash memory.
3. universal series connected bus shiftable magnet disc as claimed in claim 1, it is characterized in that: when described change-over circuit is in serial connection control circuit configuration, interior label according to the mobile disk internal storage system puts in order, and carries out the write activity that reads of data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03100208 CN1260634C (en) | 2003-01-06 | 2003-01-06 | Universal series connected bus shiftable magnet disc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03100208 CN1260634C (en) | 2003-01-06 | 2003-01-06 | Universal series connected bus shiftable magnet disc |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1424642A CN1424642A (en) | 2003-06-18 |
| CN1260634C true CN1260634C (en) | 2006-06-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03100208 Expired - Fee Related CN1260634C (en) | 2003-01-06 | 2003-01-06 | Universal series connected bus shiftable magnet disc |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1260634C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102707902A (en) * | 2012-04-27 | 2012-10-03 | 苏州瀚瑞微电子有限公司 | Mobile storage system and storage method thereof |
| CN104090727B (en) * | 2014-07-01 | 2017-04-26 | 华为技术有限公司 | Hard disk device and capacity integration method and system thereof |
| CN107632923B (en) * | 2016-09-30 | 2020-09-08 | 华为技术有限公司 | Cascaded hard disk and alarm method thereof |
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2003
- 2003-01-06 CN CN 03100208 patent/CN1260634C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1424642A (en) | 2003-06-18 |
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