CN1292322C - Electronic peripheral card with multiple I/O interfaces - Google Patents
Electronic peripheral card with multiple I/O interfaces Download PDFInfo
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- CN1292322C CN1292322C CN 02119857 CN02119857A CN1292322C CN 1292322 C CN1292322 C CN 1292322C CN 02119857 CN02119857 CN 02119857 CN 02119857 A CN02119857 A CN 02119857A CN 1292322 C CN1292322 C CN 1292322C
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Abstract
The present invention relates to an electronic peripheral card with multiple I/O interfaces, which is provided with a first and a second interface connecting ports, an interface signal converter, a first and a second switch devices, and a card signal loading detecting device, wherein the interface signal converter is used for converting a signal of the second interface connecting port into a signal of a preset interface which corresponds to and is connected to the first interface connecting port; the first and the second switch devices are respectively arranged between the second interface connecting port and the interface signal converter and between the interface signal converter and the preset interface; the card signal loading detecting device is used for detecting whether the first interface connecting port is connected to an electronic device or not. When the first interface is connected to the electronic device, the first switch device and the second switch device are broken circuits, and otherwise, the first switch device and the second switch device are conducted.
Description
Technical field
The present invention is relevant a kind of electronic card, refers to a kind of electronic card with multiple I/O interfaces especially.
Background technology
Progress with the work electronics technology, the miniaturization that becomes of healing the sixth of the twelve Earthly Branches of all kinds of PC, for example, notes type (Notebook) computer, hand held (Palm) computer or personal digital assistant (PDA) etc., the PC that this kind is small-sized is owing to can carry and have powerful calculation process ability, therefore, can provide the user great convenience.Yet, because volume is little, so general this kind small personal computers only is provided with the basic processing circuit, for other extra circuit module, for example, annex memory, modem, zone network card etc. then are to realize the function of being correlated with the corresponding miniature electric card of pegging graft, and this kind electronic card also can be plugged on the PC with the exchange of carrying out data or storage etc.
Traditionally, this kind electronic card only has a kind of interface, USB interface or CF (Compact Flash) interface for example, so an electronic card can only be plugged on the slot with the corresponding interface, does not provide corresponding slot as PC, or slot is own occupied, then can't use this electronic card, therefore, the flexibility ratio of its application is not good, and gives improved necessity.The inventor is in line with the positive spirit of innovation, and several times research experiment is novel progressive to finishing this eventually: the electronic card invention with multiple I/O interfaces.
Summary of the invention
The objective of the invention is is providing a kind of electronic card with multiple I/O interfaces, makes the flexibility ratio of application of electronic card promote greatly.
For reaching aforesaid purpose, the electronic card with multiple I/O interfaces of the present invention mainly comprises: first and second interface connectivity port at least; One interface signal converter is converted to the signal of a predetermined interface in order to the signal with this second interface connectivity port, and this predetermined interface is corresponding and is connected in this first interface connectivity port; One first switchgear is arranged between this second interface connectivity port and this interface signal converter; One second switch device is arranged between this interface signal converter and this predetermined interface; And, at least one detection card is written into signal device, whether be connected to a PC in order to detect this first interface connectivity port, wherein, when detecting this first interface and be connected to PC, this first switchgear and second switch device are opened circuit, otherwise with this first switchgear and the conducting of second switch device.
A kind of electronic card with multiple I/O interfaces mainly comprises:
At least two kinds of interface connectivity ports comprise first and second interface connectivity port;
One interface signal converter is converted to the signal of a predetermined interface in order to the signal with this second interface connectivity port, and this predetermined interface is corresponding and is connected in this first interface connectivity port;
One first switchgear is arranged between this second interface connectivity port and this interface signal converter;
One second switch device is arranged between this interface signal converter and this predetermined interface: and
At least one detection card is written into signal device, connect whether be connected to a PC in order to detect this first interface, wherein, when detecting this first interface and be connected to PC, this first switchgear and second switch device are opened circuit, otherwise with this first switchgear and the conducting of second switch device.Described electronic card with multiple I/O interfaces, this first interface connectivity port are to be CF interface connectivity port, and this predetermined interface is the CF interface.
It is the short-circuit current that detects the CD pin position in this CF interface connectivity port with an operational amplifier that described electronic card with multiple I/O interfaces, this detection card are written into signal device, whether connects PC to judge this CF interface connectivity port.
Described electronic card with multiple I/O interfaces, the positive and negative input end of operational amplifier be ground connection and connect this CD pin position respectively, and its output terminal connects negative input end via feedback resistance.
Described electronic card with multiple I/O interfaces, this second interface connectivity port is to be the USB interface connectivity port.
Described electronic card with multiple I/O interfaces, this interface signal converter are for a string column signal changes signal processor arranged side by side, convert the also column signal of CF interface to the tandem differential wave with USB interface.
Described electronic card with multiple I/O interfaces, this first switchgear is made of several analog switches, each analog switch is to connect a pin position of USB interface connectivity port to this interface signal converter, and is written into signal device by this detection card and is controlled to be conducting or opens circuit.
Described electronic card with multiple I/O interfaces, this second switch device is made of several 3 attitude bidirectional buffers, each impact damper is to connect a pin position of this interface signal converter to this CF interface, and is written into signal device by this detection card and is controlled to be conducting or opens circuit.
Described electronic card with multiple I/O interfaces, more comprise an ide interface connectivity port, it is to be connected to this CF interface via a switchgear, this switchgear is to be written into signal device by this detection card to be controlled, with when detecting this first interface and be connected to PC, this switchgear is opened circuit, otherwise with this switchgear conducting.
Because the present invention constructs novelty, can provide on the industry and utilize, and truly have the enhancement effect, so apply for a patent in accordance with the law.
Description of drawings
Fig. 1: be that one of electronic card with multiple I/O interfaces of the present invention first is preferable
The calcspar of embodiment.
Fig. 2: be the circuit diagram that detection card among the 1st figure is written into signal device.
Fig. 3: the circuit diagram that is first switchgear among the 1st figure.
Fig. 4: be the second switch manipulated or operated apparatus among the 1st figure.
Fig. 5: be that one of electronic card with multiple I/O interfaces of the present invention second is preferable
The calcspar of embodiment.
Fig. 6: be that one of electronic card with multiple I/O interfaces of the present invention the 3rd is preferable
The calcspar of embodiment.
Embodiment
For further understanding structure of the present invention, feature and purpose thereof, the attached now detailed description with graphic and preferred embodiment as after.
A relevant preferred embodiment with electronic card of multiple I/O interfaces of the present invention please be earlier with reference to shown in Figure 1, is to be the example explanation with a memory card.Wherein, this multiple I/O interfaces memory card has two kinds of interfaces such as CF and USB, and it can be when the CF interface has signal, and the automatic off-line of USB interface does not interfere with each other two interface signals.
As shown in the figure, this multiple I/O interfaces memory card is by CF interface connectivity port 11, CF interface 12, detect card and be written into signal device 13, USB interface connectivity port 14, first switchgear 15, second switch device 16, interface signal converter 17, and CF storer 18 constitutes, wherein, this CF interface connectivity port 11 and USB interface connectivity port 14 are can be for this multiple I/O interfaces memory card peg graft respectively for example the CF interface slot and the USB interface slot of the PC of PC 19, wherein, when CF interface connectivity port 11 is connected with PC 19, this detection card is written into signal device 13 just can record this connection status, and this first switchgear 15 and second switch device 16 are opened circuit with a controlling signal, the signal of 11 of USB interface connectivity port 14 and interface signal converter 17 and CF interface connectivity ports is separated, to guarantee to isolate the signal of USB interface, make the signal of CF interface 12 interference-free, and be able to correctly do the data transmission with CF storer 18.
As when separate with PC 19 CF interface connectivity port 11, this detection card is written into signal device 13 and records the state that this does not have connection, will be with a controlling signal with this first switchgear 15 and 16 conductings of second switch device, so when USB interface connectivity port 14 is connected with PC 19, can make the signal of USB interface connectivity port 14 can be via the conversion of interface signal converter 17, the USB interface signal being changed into CF interface signal, so that do the transmission of data with CF storer 18.
Fig. 2 illustrates that aforementioned detection card is written into the circuit embodiment of signal device 13, wherein, the known definition in the CF interface has a CD (Card Detect) pin position, this CD pin position is at the fashionable ground state that presents of card insert, so when PC 19 is gone up in 11 connections of aforesaid CF interface connectivity port, the CD pin position of this CF interface connectivity port 11 produces a short-circuit current for ground connection, and being written into signal device 13, this detection card just detects this short-circuit current with an operational amplifier 21, wherein, positive input terminal IN (+) ground connection of operational amplifier 21, negative input end IN (-) connects CD pin position, and be connected to output terminal via feedback resistance Rf, and because IN (+) is a virtual ground with IN (-), therefore differential input voltage also is virtual earth near 0 volt, and all feedback current Irf flow to IN (-) end through Rf, Rf is converted to the output voltage signal with Irf, through the anti-phase Hou of phase inverter 22 promptly in order to control first switchgear 15 and second switch device 16.
Fig. 3 illustrates the circuit embodiment of aforementioned first switchgear 15, constituted by several analog switches 31, each analog switch 31 is to connect a pin position of USB interface connectivity port 14 to this interface signal converter 17, and is written into signal device 13 by this detection card and is controlled to be conducting or opens circuit.
Aforementioned interface signal converter 17 is for a string column signal changes signal processor arranged side by side, can with the tandem differential wave of USB interface (VCC, D+, D-, and GND pin position) convert the CF interface to and column signal (Control, Address, and Data pin position).
Fig. 4 illustrates the circuit embodiment of aforementioned second switch device 16, it is made of several 3 attitude bidirectional buffers 41, each impact damper 41 be a pin position of connecting interface signal converter 17 to this CF interface 12, and be written into signal device 13 by this detection card and be controlled to be conducting or open circuit.
The multiple I/O interfaces memory card of the aforementioned CF of having interface and USB interface can further be extended for the interface that has more than three kinds or three kinds, second embodiment as shown in Figure 5, it is for having CF, three kinds of interfaces such as USB and ISA, wherein, being written into signal device 502 in order to the detection card that detects CF interface connectivity port 501 is the switchgears 504 and 505 that are controlled at USB to CF interface signal converter 503 two ends simultaneously, reach switchgear 507 and 508 at ISA to CF interface signal converter 506 two ends, and be written into signal device 510 in order to the detection card that detects USB interface connectivity port 509 are the switchgears 507 and 508 that are controlled at ISA to CF interface signal converter 506 two ends, by this, when CF interface connectivity port 501 is connected to PC 500, detect card and be written into signal device 502 simultaneously with switchgear 504,505,507 and 508 open circuit, to guarantee to isolate the signal of USB and ISA interface, make the signal of CF interface 512 interference-free, and be able to correctly do the data transmission with CF storer 513.
As when USB interface connectivity port 509 is connected to PC 500, and CF interface connectivity port 501 is not when connecting, the detection card is written into signal device 510 switchgear 507 and 508 is opened circuit, to guarantee to isolate the signal of ISA interface, make the signal of CF interface 512 interference-free, switchgear 504 and 505 conductings, make the signal of USB interface connectivity port 509 can be via the conversion of USB to CF interface signal converter 503, the USB interface signal is changed into CF interface signal, to do the data transmission with CF storer 513.Again when ISA interface connectivity port 511 is connected to PC 500, and CF interface connectivity port 501 is not when being connected with USB interface connectivity port 509, switchgear 507 and 508 conductings, make the signal of ISA interface connectivity port 511 can be via the conversion of ISA to CF interface signal converter 506, so that ISA interface signal is changed into CF interface signal, to do the transmission of data with CF storer 513.
Figure 6 shows that the third embodiment of the present invention, be for having CF, the multiple I/O interfaces storage card of three kinds of interfaces such as USB and IDE, it replaces ISA interface connectivity port 511 with different only being of last embodiment with ide interface connectivity port 611, and because CF storer 513 itself is ide interface, therefore, this ide interface connectivity port 611 need not be via the conversion of interface signal, only need to be connected to CF storer 513 via a switchgear 607, similarly, the conducting of this switchgear 607 or open circuit and controlled by being written into signal device 602 and being written into signal device 610 in order to the detection card that detects USB interface connectivity port 609 in order to the detection card that detects CF interface connectivity port 601.
By above explanation as can be known, the present invention is change-over switch suitably by the connection that detects card, can guarantee that the interface that uses can not disturbed by other interfaces, and through signal conversion and single electronic card can be connected with PC via CF, USB, ISA or ide interface, can reach the purpose of multiple I/O interfaces, and significantly promote the dirigibility that electronic card uses.
To sum up institute is old, and no matter the present invention is with regard to purpose, and means and effect show that all it is totally different in the feature of known techniques, in fact is one to have the invention of practical value.It should be noted that above-mentioned many embodiment give an example for convenience of explanation, the interest field that the present invention advocated should be as the criterion so that claim is described certainly, but not only limits to the foregoing description.
Claims (10)
1. the electronic card with multiple I/O interfaces is characterized in that, mainly comprises:
At least two kinds of interface connectivity ports comprise first and second interface connectivity port;
One interface signal converter is converted to the signal of a predetermined interface in order to the signal with this second interface connectivity port, and this predetermined interface is corresponding and is connected in this first interface connectivity port:
One first switchgear is arranged between this second interface connectivity port and this interface signal converter;
One second switch device is arranged between this interface signal converter and this predetermined interface; And
One detects card is written into signal device, whether be connected to a PC in order to detect this first interface connectivity port, wherein, when detecting this first interface connectivity port and be connected to PC, this first switchgear and second switch device are opened circuit, otherwise with this first switchgear and the conducting of second switch device.
2. the electronic card with multiple I/O interfaces as claimed in claim 1 is characterized in that, this first interface connectivity port is to be CF interface connectivity port, and this predetermined interface is the CF interface.
3. the electronic card with multiple I/O interfaces as claimed in claim 2, it is characterized in that, it is the short-circuit current that detects the CD pin position in this CF interface connectivity port with an operational amplifier that this detection card is written into signal device, whether connects PC to judge this CF interface connectivity port.
4. the electronic card with multiple I/O interfaces as claimed in claim 3 is characterized in that, the positive input terminal ground connection of operational amplifier, negative input end connect this CD pin position, and its output terminal connects negative input end via feedback resistance.
5. the electronic card with multiple I/O interfaces as claimed in claim 2 is characterized in that, this second interface connectivity port is to be the USB interface connectivity port.
6. the electronic card with multiple I/O interfaces as claimed in claim 5 is characterized in that, this interface signal converter is for a string column signal changes signal processor arranged side by side, converts the also column signal of CF interface to the tandem differential wave with USB interface.
7. the electronic card with multiple I/O interfaces as claimed in claim 6, it is characterized in that, this first switchgear is made of several analog switches, each analog switch is to connect a pin position of USB interface connectivity port to this interface signal converter, and is written into signal device by this detection card and is controlled to be conducting or opens circuit.
8. the electronic card with multiple I/O interfaces as claimed in claim 6, it is characterized in that, this second switch device is made of several 3 attitude bidirectional buffers, each impact damper is to connect a pin position of this interface signal converter to this CF interface, and is written into signal device by this detection card and is controlled to be conducting or opens circuit.
9. the electronic card with multiple I/O interfaces as claimed in claim 5, it is characterized in that, more comprise an ide interface connectivity port, it is to be connected to the CF reservoir via one the 3rd switchgear, the 3rd switchgear is to be written into signal device by this detection card to be controlled, with when detecting this first interface connectivity port and be connected to PC, the 3rd switchgear is opened circuit, otherwise with the 3rd switchgear conducting.
10. the electronic card with multiple I/O interfaces as claimed in claim 9, it is characterized in that, more comprise one second detection card and be written into signal device, it is connected to the 3rd switchgear, with when detecting this second interface connectivity port and be connected to PC, the 3rd switchgear is opened circuit, otherwise with the 3rd switchgear conducting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02119857 CN1292322C (en) | 2002-05-15 | 2002-05-15 | Electronic peripheral card with multiple I/O interfaces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02119857 CN1292322C (en) | 2002-05-15 | 2002-05-15 | Electronic peripheral card with multiple I/O interfaces |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1458559A CN1458559A (en) | 2003-11-26 |
| CN1292322C true CN1292322C (en) | 2006-12-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02119857 Expired - Fee Related CN1292322C (en) | 2002-05-15 | 2002-05-15 | Electronic peripheral card with multiple I/O interfaces |
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| Country | Link |
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| CN (1) | CN1292322C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1331083C (en) * | 2004-03-31 | 2007-08-08 | 安国国际科技股份有限公司 | Over-current protection method suitable for card reader of multi-slot flash memory card |
| KR100630934B1 (en) * | 2004-06-11 | 2006-10-02 | 삼성전자주식회사 | Computer System And Control Method Thereof |
| US20110264828A1 (en) * | 2010-04-22 | 2011-10-27 | Zeung Ping-Shun | Method of Monitoring Connection Status of an Electronic Device and Related Electronic device |
| EP3025210A1 (en) * | 2013-07-22 | 2016-06-01 | Hewlett Packard Enterprise Development LP | Module connectivity device |
| US10606324B2 (en) | 2015-01-16 | 2020-03-31 | Hewlett Packard Enterprise Development Lp | Plenum to deliver cool air and route multiple cables |
| CN105183680B (en) * | 2015-09-18 | 2018-03-20 | 烽火通信科技股份有限公司 | Realize that PCIe interface turns the fpga chip and method of CF card interfaces |
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2002
- 2002-05-15 CN CN 02119857 patent/CN1292322C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN1458559A (en) | 2003-11-26 |
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