CN101676891A - Electronic device with switching device - Google Patents
Electronic device with switching device Download PDFInfo
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- CN101676891A CN101676891A CN200810149023A CN200810149023A CN101676891A CN 101676891 A CN101676891 A CN 101676891A CN 200810149023 A CN200810149023 A CN 200810149023A CN 200810149023 A CN200810149023 A CN 200810149023A CN 101676891 A CN101676891 A CN 101676891A
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- peripheral device
- switching node
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- host apparatus
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Abstract
The invention provides an electronic device with a switching device, which comprises a first peripheral device, a second peripheral device and a switching unit. The first peripheral device is used forselectively carrying out communication with a host device. The second peripheral device is used for selectively carrying out communication with the host device and the first peripheral device. The switching unit is used for switching to the host device and the first peripheral device for allowing the host device to carry out access operation on the first peripheral device through a first path; used for switching to the host device and the second peripheral device for allowing the host device to carry out the access operation on the second peripheral device through a second path; and used forswitching to the first peripheral device and the second peripheral device for allowing the first peripheral device to carry out the access operation on the second peripheral device through a third path.
Description
Technical field
The present invention relates to a kind of electronic installation, particularly relate to a kind of electronic installation with three-dimensional switch.
Background technology
(universal serial bus, communication mode USB) adopts the starlike bus-bar framework of hierarchy type (tiered star topology architecture) of master-slave mode (client/server) to universal serial bus.Generally speaking, each starlike framework only uses a usb host device.Starlike framework is a control center with the usb host device, and sets up several stratum's nodes by hub device (USB hub device), with hub device or the USB device of stratum's end (USB device) that is linked to next stratum.The USB device is a computer peripheral device, for example keyboard (keyboard), mouse (mouse), storage device (storage device).The starlike framework of the hierarchy type that universal serial bus is taked only allows main frame and functional device to carry out point-to-point communication pattern (peer-to-peer communication) access data, by the leading communication of host apparatus, all terminal USB devices utilize timesharing mechanism (time-sharing) and host apparatus to carry out exchanges data.
Yet, in the time of need intercoming mutually as if two terminal USB devices, must carry out exchanges data with host apparatus separately earlier, assist the transmission data to another corresponding USB device via host apparatus again.Shown in Figure 1A-1B, for usb host device in the prior art and USB OTG (on-the-go) device is optionally controlled the USB schematic representation of apparatus.This USB OTG device has two kinds of functions, comprises the function of USB device and the function that can be used as a host apparatus.But two kinds of functions can not simultaneously and be stored in same USBOTG device.In Figure 1A, the USB OTG device 100 of digital album (digital photo frame) 106 is switched to usb host device 102, but makes usb host device 102 access USB OTG devices 100, and this moment, the USBOTG device 100 was as the USB device.In Figure 1B, USB OTG device 100 is switched the USB device 104 to the outside, but makes this external USB device 104 of USB OTG device 100 accesses, and this moment, USB OTG device 100 was as a usb host device.
In view of this, developing a kind of new-type electronic installation is necessary with the problem that solves between above-mentioned USB device and the usb host device.
Summary of the invention
The object of the present invention is to provide a kind of electronic installation, to utilize a host apparatus or second peripheral device switches first peripheral device easily with three-dimensional switch.
For achieving the above object, the invention provides a kind of electronic installation with three-dimensional switch, this electronic installation comprises first peripheral device, second peripheral device and switch unit.This first peripheral device is in order to optionally to communicate with this host apparatus.Second peripheral device is in order to optionally to communicate with this host apparatus and this first peripheral device.Switch unit carries out accessing operation by first path to this first peripheral device to allow this host apparatus in order to switch to this host apparatus and this first peripheral device; In order to switch to this host apparatus and this second peripheral device, by second path this second peripheral device is carried out accessing operation to allow this host apparatus; And be used to switch to this first peripheral device and this second peripheral device, by the Third Road footpath this second peripheral device is carried out accessing operation to allow this first peripheral device.
As mentioned above, this electronic installation is applicable to usb host device or the USBOTG device that adopts client/server.In addition, when this switch unit was carried out blocked operation, this host apparatus and this first peripheral device optionally carried out accessing operation to this second peripheral device.Therefore, this electronic installation utilizes this host apparatus or second peripheral device switches first peripheral device easily.
This first selects module to have first switching node that is positioned at this first path and second switching node that is positioned at this second path, this first select module with so that this first switching node or this second switching node both one of enable.Second selects module to have the 3rd switching node that is positioned at this first path and the 4th switching node that is positioned at this Third Road footpath, this second selection module with so that the 3rd switching node or the 4th switching node both one of enable.
For the present invention's foregoing can be become apparent, preferred embodiment cited below particularly, and be described in detail below in conjunction with the accompanying drawings:
Description of drawings
Figure 1A-1B is that usb host device and USB OTG device are optionally controlled the USB schematic representation of apparatus in the prior art.
Fig. 2 is for having the block scheme of the electronic installation of three-dimensional switch in one embodiment of the present of invention.
Fig. 3 is the synoptic diagram of this three-dimensional switch in one embodiment of the present of invention.
The Reference numeral and the ingredient that relate among the figure are as follows:
100 USB OTG devices, 102 usb host devices
104 USB devices, 106 digital album (digital photo frame)
200 electronic installations, 202 first peripheral devices
204 second peripheral devices, 206 switch units
208 host apparatus 210a, first path
210c Third Road footpath, 210b second path
300 first select module 300a first switching node
300b second switching node 302 second is selected module
302a the 3rd switching node 302b the 4th switching node
Embodiment
Referring to Fig. 2 is the block scheme that has the electronic installation 200 of three-dimensional switch 206 in one embodiment of the present of invention.This electronic installation 200 comprises first peripheral device 202, second peripheral device 204 and switch unit 206.This electronic installation 200 is coupled to a host apparatus 208.This switch unit 206 couples this host apparatus 208 to this first peripheral device 202 and this second peripheral device 204.This switch unit 206 couples this first peripheral device 202 to this second peripheral device 204.In the present embodiment, this first peripheral device 202 can be a USB OTG device, is applicable to mobile phone or digital album (digital photo frame).
This first peripheral device 202 is in order to optionally to communicate with this host apparatus 208.Second peripheral device 204 is in order to optionally to communicate with this host apparatus 208 and this first peripheral device 202.Switch unit 206 carries out accessing operation by the first path 210a to this first peripheral device 202 to allow this host apparatus 208 in order to switch to this host apparatus 208 and this first peripheral device 202; In order to switch to this host apparatus 208 and this second peripheral device 204, by the second path 210b this second peripheral device 204 is carried out accessing operation to allow this host apparatus 208; And be used to switch to this first peripheral device 202 and this second peripheral device 204, by Third Road footpath 210c this second peripheral device 204 is carried out accessing operation to allow this first peripheral device 202.
In the present embodiment, this first peripheral device 202 is supported the USB protocol standard.This second peripheral device 204 is supported the USB protocol standard.Second peripheral device 204 is a usb hub.
As mentioned above, this electronic installation 200 is applicable to usb host device 208 or the USB OTG device that adopts client/server.In addition, when this switch unit 206 was carried out blocked operation, this host apparatus 208 and this first peripheral device 202 optionally carried out accessing operation to this second peripheral device 204.Therefore, this electronic installation 200 utilizes this host apparatus 208 or second peripheral device 204 switches first peripheral device 202 easily.Details are as follows for this switch unit 206.
With reference to figure 2 and Fig. 3, Fig. 3 is the synoptic diagram of this three-dimensional switch in one embodiment of the present of invention.This switching device shifter comprises that also first selects module 300 and second to select module 302.This first second switching node 300b that selects module 300 to have the first switching node 300a that is positioned at this first path 210a and be positioned at this second path 210b, this first select module 300 usefulness so that this first switching node 300a or this second switching node 300b both one of enable.Second the 4th switching node 302b that selects module 302 to have the 3rd switching node 302a that is positioned at this first path 210a and be positioned at this Third Road footpath 210c, this second select module 302 usefulness so that the 3rd switching node 302a or the 4th switching node 302b both one of enable.
Wherein, when this first when selecting this first switching node 300a of module 300 and this second to select the 3rd switching node 302a of module 302 to enable, this host apparatus 208 carries out accessing operation by this first path 210a to this first peripheral device 202, when this first when selecting this second switching node 300b of module 300 and this second to select the 3rd switching node 302a of module 302 to enable, this host apparatus 208 carries out accessing operation by this second path 210b to this second peripheral device 204, and when this first when selecting this first switching node 300a of module 300 and this second to select the 4th switching node 302b of module 302 to enable, this first peripheral device 202 carries out accessing operation by this Third Road footpath 210c to this second peripheral device 204.
This first peripheral device 202 also comprises transmission one output enable signal (Soe), so that this switch unit 206 enables.This first peripheral device 202 also comprises and sends first control signal (Sc1), so that this first selects module 300 to enable, and sends second control signal (Sc2), so that this second selects module 302 to enable.In other words, this first controlling signal (Sc1) enables this first switching node 300a or this second switching node 300b of this first selection module 300; This second controlling signal (Sc2) enables the 3rd switching node 302a or the 4th switching node 302b of this second selection module 302.
Though the present invention discloses as above with preferred embodiment; right its is not in order to qualification the present invention, the technical staff in the technical field of the invention, without departing from the spirit and scope of the invention; when can doing various changes and retouching, so the present invention's protection domain is when being as the criterion with claim.
Claims (14)
1. an electronic installation is coupled to a host apparatus, it is characterized in that, this electronic installation comprises:
One first peripheral device is in order to optionally to communicate with this host apparatus;
One second peripheral device is in order to optionally to communicate with this host apparatus and this first peripheral device; And
One switches the unit, in order to switch to this host apparatus and this first peripheral device, to allow this host apparatus this first peripheral device to be carried out accessing operation by one first path, in order to switch to this host apparatus and this second peripheral device, to allow this host apparatus this second peripheral device to be carried out accessing operation by one second path, and be used to switch to this first peripheral device and this second peripheral device, by Third Road footpath this second peripheral device is carried out accessing operation to allow this first peripheral device.
2. electronic installation according to claim 1 is characterized in that, described switch unit also comprises:
One first selects module, has one first switching node that is positioned at this first path and one second switching node that is positioned at this second path, this first select module with so that this first switching node or this second switching node both one of enable; And
One second selects module, one the 4th switching node that has one the 3rd switching node that is positioned at this first path and be positioned at this Third Road footpath, this second select module with so that the 3rd switching node or the 4th switching node both one of enable;
Wherein when this first when selecting this first switching node of module and this second to select the 3rd switching node of module to enable, this host apparatus carries out accessing operation by this first path to this first peripheral device, when this first when selecting this second switching node of module and this second to select the 3rd switching node of module to enable, this host apparatus carries out accessing operation by this second path to this second peripheral device, and when this first when selecting this first switching node of module and this second to select the 4th switching node of module to enable, this first peripheral device carries out accessing operation by this Third Road footpath to this second peripheral device.
3. electronic installation according to claim 2 is characterized in that, described first peripheral device sends an enable signal, so that described switch unit enables.
4. electronic installation according to claim 2 is characterized in that, described first peripheral device also sends one first control signal, so that described first select module to enable, and send one second control signal, so that described second selects module to enable.
5. electronic installation according to claim 1 is characterized in that, described first peripheral device is supported the USB protocol standard.
6. electronic installation according to claim 1 is characterized in that, described second peripheral device is supported the USB protocol standard.
7. electronic installation according to claim 6 is characterized in that, described second peripheral device is a usb hub.
8. an electronic installation is coupled to a host apparatus and one first peripheral device, it is characterized in that this electronic installation comprises:
One second peripheral device is in order to optionally to communicate with this host apparatus and this first peripheral device; And
One switches the unit, in order to switch to this host apparatus and this first peripheral device, to allow this host apparatus this first peripheral device to be carried out accessing operation by one first path, in order to switch to this host apparatus and this second peripheral device, to allow this host apparatus this second peripheral device to be carried out accessing operation by one second path, and be used to switch to this first peripheral device and this second peripheral device, by Third Road footpath this second peripheral device is carried out accessing operation to allow this first peripheral device.
9. electronic installation according to claim 8 is characterized in that, described switch unit also comprises:
One first selects module, has one first switching node that is positioned at this first path and one second switching node that is positioned at this second path, this first select module with so that this first switching node or this second switching node both one of enable; And
One second selects module, one the 4th switching node that has one the 3rd switching node that is positioned at this first path and be positioned at this Third Road footpath, this second select module with so that the 3rd switching node or the 4th switching node both one of enable;
Wherein when this first when selecting this first switching node of module and this second to select the 3rd switching node of module to enable, this host apparatus carries out accessing operation by this first path to this first peripheral device, when this first when selecting this second switching node of module and this second to select the 3rd switching node of module to enable, this host apparatus carries out accessing operation by this second path to this second peripheral device, and when this first when selecting this first switching node of module and this second to select the 4th switching node of module to enable, this first peripheral device carries out accessing operation by this Third Road footpath to this second peripheral device.
10. electronic installation according to claim 9 is characterized in that, described first peripheral device also sends an enable signal, so that this switch unit enables.
11. electronic installation according to claim 9 is characterized in that, described first peripheral device also sends one first control signal, so that this first selects module to enable, and sends one second control signal, so that this second selects module to enable.
12. electronic installation according to claim 8 is characterized in that, described first peripheral device is supported the USB protocol standard.
13. electronic installation according to claim 8 is characterized in that, described second peripheral device is supported the USB protocol standard.
14. electronic installation according to claim 13 is characterized in that, described second peripheral device is a usb hub.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810149023A CN101676891A (en) | 2008-09-17 | 2008-09-17 | Electronic device with switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810149023A CN101676891A (en) | 2008-09-17 | 2008-09-17 | Electronic device with switching device |
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| Publication Number | Publication Date |
|---|---|
| CN101676891A true CN101676891A (en) | 2010-03-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810149023A Pending CN101676891A (en) | 2008-09-17 | 2008-09-17 | Electronic device with switching device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103164355A (en) * | 2011-12-13 | 2013-06-19 | 联想(北京)有限公司 | Switch method and electronic equipment |
| CN104778140A (en) * | 2014-01-15 | 2015-07-15 | 深圳市可橙科技有限公司 | USB (Universal Serial Bus) automatic identification and conduction system of star-shaped framework and method thereof |
| CN104950987A (en) * | 2014-03-24 | 2015-09-30 | 环旭电子股份有限公司 | Expansion seat |
-
2008
- 2008-09-17 CN CN200810149023A patent/CN101676891A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103164355A (en) * | 2011-12-13 | 2013-06-19 | 联想(北京)有限公司 | Switch method and electronic equipment |
| CN103164355B (en) * | 2011-12-13 | 2015-09-23 | 联想(北京)有限公司 | A kind of changing method and electronic equipment |
| CN104778140A (en) * | 2014-01-15 | 2015-07-15 | 深圳市可橙科技有限公司 | USB (Universal Serial Bus) automatic identification and conduction system of star-shaped framework and method thereof |
| WO2015106493A1 (en) * | 2014-01-15 | 2015-07-23 | 深圳市可橙科技有限公司 | Automatic usb identification and communication system with star architecture and method thereof |
| US20170192916A1 (en) * | 2014-01-15 | 2017-07-06 | Shenzhen Fly-Orange Technology Co., Ltd | Automatic usb identification and communication system with star architecture and method thereof |
| CN104778140B (en) * | 2014-01-15 | 2019-01-22 | 深圳市可橙科技有限公司 | System and method are connected in the USB automatic identification of starlike framework |
| CN104950987A (en) * | 2014-03-24 | 2015-09-30 | 环旭电子股份有限公司 | Expansion seat |
| CN104950987B (en) * | 2014-03-24 | 2019-07-26 | 环旭电子股份有限公司 | Expand seat |
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Application publication date: 20100324 |