CN101673143B - Interface card - Google Patents
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- CN101673143B CN101673143B CN2008101494056A CN200810149405A CN101673143B CN 101673143 B CN101673143 B CN 101673143B CN 2008101494056 A CN2008101494056 A CN 2008101494056A CN 200810149405 A CN200810149405 A CN 200810149405A CN 101673143 B CN101673143 B CN 101673143B
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Abstract
The invention discloses an interface card, which comprises a connector, a keyboard/video/mouse interface, a processing unit, a first conversion unit, a second conversion unit and a network interface. The connector is inserted into a slot to acquire power supply from a host computer. The keyboard/video/mouse interface is provided with at least 18 pins, receives single-end video signals from the host computer and outputs keyboard/mouse signals to the host computer. The processing unit processes digital control signals and outputs the keyboard/mouse signals. The first conversion unit converts single-end video signals and outputs differential video signals. The second conversion unit converts the differential video signals and outputs the digital control signals to the processing unit. The network interface outputs the differential video signals to a KVM switch or a remote control on/off module through a network cable, and receives differential control signals through the network cable.
Description
Technical field
The present invention relates to a kind of interface card, and be particularly related to the interface card of the host side connector function of a kind of KVM of having signal spreaders system.
Background technology
Please refer to Fig. 1, it illustrates the synoptic diagram of traditional calculations machine management system.Computer management system 100 comprises signal spreaders (extender) system 110 and main frame (host) 120.Signal spreaders system 110 comprises remote end module 130 and host side connector (dongle) 140.Remote end module 130 for example is a KVM switch (KVM Switch) or a remote control end module (remote-end module), and remote end module 130 is exported a keyboard to host side connector 140 via a grid line.Host side connector 140 exports keyboard to main frame 120, or receives a vision signal and export vision signal to remote end module 130 via grid line from main frame 120.
Please refer to Fig. 2, it illustrates the synoptic diagram of legacy hosts terminal adapter.Host side connector 140 comprises a connector body 142, a keyboard/mouse interface 144 and a video interface 146.Connector body 142 comprises a network interface 148, and network interface 148 is connected to remote end module 130 via grid line.Keyboard/mouse interface 144 and video interface 146 are connected to the keyboard/mouse interface and the video interface of main frame 120 respectively, keyboard/mouse interface 144 output keyboard are to the keyboard/mouse interface of main frame 120, and video interface 146 is from the video interface receiving video signals of main frame 120.Because host side connector 140 is installed on main frame 120 outsides, so the mechanism shell of host side connector 140 occupies certain space in fact, is unfavorable for simplifying the installation frame environment of computer management system 100.In addition, when keyboard/mouse interface 144 pairing interfaces not simultaneously, for example be ps (Personal System, PS/2) interface, USB (universal serial bus) (Universal Serial Bus, USB) interface or liter sun (SUN) interface, then needing to change the main frame of the host side connector 140 of corresponding model with the different connecting interface specifications of correspondence, very is inconvenience.
In addition, remote end module 130 can make main frame 120 carry out cold boot or power supply replacement via host side connector 140.Yet, because host side connector 140 obtains the power supply supply via keyboard/mouse interface 144 from main frame 120, so when main frame 120 is off-mode, host side connector 140 can't obtain the power supply supply from the keyboard/mouse interface 144 of main frame 120, cause remote end module 130 can't make main frame 120 carry out cold boot or power supply replacement, profit brings inconvenience.
Summary of the invention
The present invention relates to a kind of interface card, connector modulesization and plug-in cardization with the signal spreaders system, integrating and to simplify the installation frame environment of total system, and by being plugged in main frame inside, and be able to all can the far-end main control system carry out cold boot or power supply is reset at host switch machine state.
According to a first aspect of the invention, propose a kind of interface card, comprise a connector, a KVM interface, a processing unit, one first converting unit, one second converting unit and a network interface.Connector is plugged in a slot of a main frame to obtain the power supply supply from main frame.The KVM interface has at least 18 pins, be electrically connected to a keyboard/mouse interface and a video interface of main frame by a cable, receive a single-end video signals with video interface, and export the keyboard/mouse interface of a keyboard to main frame from main frame.Processing unit is handled a digital controlled signal and is exported keyboard according to this to the KVM interface.First converting unit will come from the single-end video signals of KVM interface and change and export according to this a differential video signals.Second converting unit is changed a differential control signal and export according to this digital controlled signal to processing unit.Network interface exports a KVM switch or a remote control end module to via the differential video signals that a grid line will come from first converting unit, and receive the differential control signal that comes from KVM switch or remote control end module, and output differential control signal to the second converting unit via grid line.
According to a second aspect of the invention, propose a kind of interface card, comprise a connector, a USB (universal serial bus), a digital analog converter, one first processing unit, one second processing unit, one first converting unit, one second converting unit, a network interface and a video graphics array output terminal.Connector is plugged in a slot of a main frame to obtain the power supply supply and to receive a single-end video signals from main frame.USB (universal serial bus) is electrically connected to a keyboard/mouse interface of main frame, to export the keyboard/mouse interface of a keyboard to main frame.Digital analog converter will come from the single-end video signals of connector and change and export according to this an analog video signal.First processing unit is handled a digital mixing signal and is exported a digital controlled signal according to this.Second processing unit is handled digital controlled signal and is exported keyboard according to this to USB (universal serial bus).First converting unit will come from the analog video signal of digital analog converter and horizontal/vertical synchronization signals is changed and export a differential video signals according to this.Second converting unit is changed a differential control signal and export according to this digital mixing signal to this first processing unit.Network interface exports a KVM switch or a remote control end module to via the differential video signals that a grid line will come from first converting unit, and receive the differential control signal that comes from KVM switch or remote control end module, and output differential control signal to the second converting unit via grid line.Analog video signal and horizontal/vertical synchronization signals that the video graphics array output terminal will come from digital analog converter export a display to.
According to a third aspect of the invention we, propose a kind of interface card, comprise a connector, a universal serial bus concentrator, a digital analog converter, one first processing unit, one second processing unit, one first converting unit, one second converting unit, a network interface and a video graphics array output terminal.The slot that connector is plugged in a main frame to be obtaining the power supply supply and to receive a single-end video signals from main frame, and exports a keyboard to main frame.Universal serial bus concentrator receives and exports keyboard to connector.Digital analog converter will come from the single-end video signals of connector and change and export according to this an analog video signal.First processing unit is handled a digital mixing signal and is exported a digital controlled signal according to this.Second processing unit is handled digital controlled signal and is exported keyboard according to this to universal serial bus concentrator.First converting unit will come from the analog video signal of digital analog converter and horizontal/vertical synchronization signals is changed and export a differential video signals according to this.Second converting unit is changed a differential control signal and export according to this digital mixing signal to the first processing unit.Network interface exports a KVM switch or a remote control end module to via the differential video signals that a grid line will come from first converting unit, and receive the differential control signal that comes from KVM switch or remote control end module, and output differential control signal to the second converting unit via grid line.Analog video signal and horizontal/vertical synchronization signals that the video graphics array output terminal will come from digital analog converter export a display to.
For foregoing of the present invention can be become apparent, a preferred embodiment cited below particularly, and conjunction with figs. are described in detail below:
Description of drawings
Fig. 1 illustrates the synoptic diagram of traditional calculations machine management system.
Fig. 2 illustrates the synoptic diagram of legacy hosts terminal adapter.
Fig. 3 illustrates the synoptic diagram according to the interface card of first embodiment of the invention.
Fig. 4 illustrates the synoptic diagram according to the interface card of second embodiment of the invention.
Fig. 5 illustrates the synoptic diagram according to the interface card of third embodiment of the invention.
[main element symbol description]
100: computer management system
110: the signal spreaders system
120: main frame
130: remote end module
140: the host side connector
142: connector body
144: keyboard/mouse interface
146: video interface
148: network interface
300,400,500: interface card
310,410: connector
320: the KVM interface
330: processing unit
340,460: the first converting units
350,470: the second converting units
360,480: network interface
370: the power supply reset cell
380: the interface card serial port interface
390: the three converting units
420: USB (universal serial bus)
430: digital analog converter
440: the first processing units
450: the second processing units
490: the video graphics array output terminal
525: universal serial bus concentrator
Embodiment
The present invention proposes a kind of interface card, with connector (dongle) modularization and the plug-in cardization of signal spreaders system, and is plugged in main frame inside, to integrate and to simplify the installation frame environment of total system.In addition, by the standby power of main frame inside, and be able to when the host switch machine, still can carry out cold boot or power supply replacement or sequence control by the far-end main control system.
First embodiment
Please refer to Fig. 3, it illustrates the synoptic diagram according to the interface card of first embodiment of the invention.Interface card 300 comprises a connector 310, a KVM interface 320, a processing unit 330, one first converting unit 340, one second converting unit 350, a network interface 360, a power supply reset cell 370, an interface card serial port interface 380 and one the 3rd converting unit 390.Connector 310 for example is a golden finger, and it is plugged on the slot of a main frame (not being illustrated in figure).Main frame comprises a motherboard, and slot is positioned on the motherboard.This slot for example is a peripheral component interface (Peripheral Component Interface, PCI) slot, a quick peripheral assembly interface (PCI Express, PCIE) (Accelerated Graphics Port, AGP) slot does not limit a slot or accelerogram picture processing port.Interface card 300 via connector 310 to obtain the power supply supply from main frame.
First converting unit 340 will come from the single-end video signals of KVM interface 320 and change and export according to this one differential (differential) vision signal to network interface 360.Network interface 360 exports a KVM switch (KVM switch) or a remote control end module (remote-end module) to via the differential video signals that a grid line (not being illustrated in figure) will come from first converting unit 340.Wherein, grid line for example is a unshielded pair twist (unshielded twisted pair, UTP)) cable, comprises the CAT5/5e/6/7 cable and is not limited only to this, can be in order to the signal of transfer ratio than far-end.Network interface 360 for example is the RJ-45 interface.First converting unit 340 for example is the differential circuit operational amplifier.
In the present embodiment, the single-end video signals of main frame output comprises red video signal (R), video green signal (G), blue video signal (B), vertical synchronizing signal (V), horizontal-drive signal (H) and line length detection signal (8MHz).After the conversion of first converting unit and handling, red video signal (R), video green signal (G) and blue video signal (B) can form three groups of differential video signals with mode and vertical synchronizing signal (V), horizontal-drive signal (H) and the line length detection signal (8MHz) of combination compression one to one, for example be R+V, G+8MHz, B+H, but the technology of present embodiment is not limited thereto.Above-mentioned single-end video signals comprises luminance video signal (Y), chrominance video signal (U), aberration vision signal (Vc), vertical synchronizing signal (V), horizontal-drive signal (H) and line length detection signal (8MHz).After the conversion of first converting unit and handling, luminance video signal (Y), chrominance video signal (U), aberration vision signal (Vc) can form three groups of differential video signals with mode and vertical synchronizing signal (V), horizontal-drive signal (H) and the line length detection signal (8MHz) of combination compression one to one.
In addition, network interface 360 receives a differential control signal that comes from KVM switch or remote control end module via grid line, and output differential control signal to the second converting unit 350.Second converting unit 350 for example is a RS485 transceiver (transceiver), a RS422 transceiver or a RS232 transceiver.Second converting unit 350 is changed this differential control signal and export according to this a digital controlled signal to processing unit 330.Processing unit 330 is handled this digital controlled signal and is exported a keyboard according to this to KVM interface 320.KVM interface 320 exports this keyboard on the motherboard keyboard/mouse interface.
In addition, power supply reset cell 370 is electrically connected to processing unit 330 and main frame.Network interface 360 receives a differential power control signal from KVM switch or remote control end module via grid line, and exports this differential power control signal to the second converting unit 350.350 pairs of differential power control signals of second converting unit are changed and are exported according to this a single ended power supply and control signal to processing unit 330.Processing unit 330 is according to this single ended power supply control signal control power supply reset cell 370, and power supply reset cell 370 makes main frame carry out cold boot via connector 310 or power supply is reset.
In addition, interface card serial port interface 380 is electrically connected to one of main frame main frame serial port interface by another cable.Interface card serial port interface 380 is in order to the signal of transmission terminal equipment (for example being telephone set).The 3rd converting unit 390 is electrically connected to processing unit 330 and interface card serial port interface 380.Network interface 360 receives a differential power control signal from KVM switch or remote control end module via grid line, and exports differential power control signal to the second converting unit 350.350 pairs of differential power control signals of second converting unit are changed and are exported according to this one first Sequenced Power Supplys and control signal to processing unit 330.
330 pairs first Sequenced Power Supplys control signals of processing unit are changed and are exported according to this one second Sequenced Power Supplys and control signal to the 3rd converting unit 390.390 pairs second Sequenced Power Supplys control signals of the 3rd converting unit are changed and are exported according to this one the 3rd Sequenced Power Supplys and control signal to interface card serial port interface 380.Interface card serial port interface 380 is sent to the main frame serial port interface of main frame with the 3rd Sequenced Power Supplys control signal, makes that main frame carries out cold boot, power supply is reset or sequence control.Wherein, the level difference of first, second and third Sequenced Power Supplys control signal.The 3rd converting unit 390 for example is a RS485 transceiver, a RS422 transceiver or a RS232 transceiver.
Second embodiment
Please refer to Fig. 4, it illustrates the synoptic diagram according to the interface card of second embodiment of the invention.Interface card 400 comprises a connector 410, a USB (universal serial bus) (Universal Serial Bus, USB) (Video Graphics Array, VGA) output terminal 490 for interface 420, a digital analog converter 430, one first processing unit 440, one second processing unit 450, one first converting unit 460, one second converting unit 470, a network interface 480 and a video graphics array.Connector 410 for example is a golden finger, and it is plugged on the slot of a main frame (not being illustrated in figure).Main frame comprises a motherboard, and slot is positioned on the motherboard.This slot for example is that a peripheral component interface (PCI) slot, quick peripheral assembly interface (PCIE) slot or an accelerogram picture are handled port (AGP) slot, does not limit.Interface card 400 obtaining the power supply supply from main frame, and receives a single-end video signals from main frame via connector 410.
Digital analog converter 430 will come from the single-end video signals of connector 410 and change and export according to this an analog video signal.First converting unit 460 will come from the analog video signal of digital analog converter 430 and horizontal/vertical synchronization signals is changed and export a differential video signals according to this to network interface 480.Network interface 480 exports a KVM switch or a remote control end module to via the differential video signals that a grid line (not being illustrated in figure) will come from first converting unit 460.Wherein, grid line for example is a unshielded pair twist (unshielded twisted pair, UTP)) cable, comprises the CAT5/5e/6/7 cable and is not limited only to this, can be in order to the signal of transfer ratio than far-end.In addition, video graphics array output terminal 490 analog video signal and the horizontal/vertical synchronization signals that will come from digital analog converter 430 exports a display to.First converting unit 460 for example is the differential circuit operational amplifier.
In the present embodiment, analog video signal comprises red video signal (R), video green signal (G), blue video signal (B), vertical synchronizing signal (V), horizontal-drive signal (H) and line length detection signal (8MHz).After the conversion of first converting unit and handling, red video signal (R), video green signal (G) and blue video signal (B) can form three groups of differential video signals with mode and vertical synchronizing signal (V), horizontal-drive signal (H) and the line length detection signal (8MHz) of combination compression one to one, for example be R+V, G+8MHz, B+H, but the technology of present embodiment is not limited thereto.Above-mentioned analog video signal comprises luminance video signal (Y), chrominance video signal (U), aberration vision signal (Vc), vertical synchronizing signal (V), horizontal-drive signal (H) and line length detection signal (8MHz).After the conversion of first converting unit and handling, luminance video signal (Y), chrominance video signal (U), aberration vision signal (Vc) can form three groups of differential video signals with mode and vertical synchronizing signal (V), horizontal-drive signal (H) and the line length detection signal (8MHz) of combination compression one to one.
In addition, network interface 480 receives via grid line and comes from a differential control signal of KVM switch or remote control end module, and exports this differential control signal to the second converting unit 470.Network interface 480 for example is the RJ-45 interface.Second converting unit 470 is changed this differential control signal and export according to this digital mixing signal to the first processing unit 440.First processing unit 440, for example be an Application Specific Integrated Circuit (Application Specific Integrated Circuit, ASIC), a complexity programmable logic element (Complex programmable Logic Device, CPLD) or an effect type programmable gate array (Field programmable Gates Array, FPGA), it exports a digital controlled signal according to this to handling from the digital mixing signal of second converting unit 470.Second processing unit 450 for example is a microprocessor control unit (MCU), and it is to handling from the digital controlled signal of first processing unit 440 and exporting a keyboard according to this to USB (universal serial bus) 420.USB (universal serial bus) 420 is electrically connected to a keyboard/mouse interface of main frame by a cable, with the keyboard/mouse interface of output keyboard to main frame.
In addition, first processing unit 440 is more in order to the polarity of storage horizontal/vertical synchronization signals, and is sent to KVM switch or remote control end module via network interface 480 by grid line.Thus, KVM switch or remote control end module promptly can be according to the polarity of the horizontal/vertical synchronization signals that is transmitted, and correctly reduce differential synchronizing signal, and so that the output of differential video signals is more accurate and undistorted.In addition, the polarity that second processing unit 450 also can/vertical synchronizing signal flat in order to storage of water.Moreover first processing unit 440 also can pass through to receive and store the polarity of horizontal/vertical synchronization signals, and does not need to receive by digital analog converter 430 polarity of horizontal/vertical synchronization signals.
In addition, network interface 480 more receives a differential power control signal from KVM switch or remote control end module via grid line, and exports differential power control signal to the second converting unit 470.470 pairs of differential power control signals of second converting unit are changed and are exported according to this a single ended power supply and control signal to first processing unit 440.First processing unit 440 exports the single ended power supply control signal to second processing unit 450, the second processing units 450 makes main frame carry out cold boot or power supply replacement according to the single ended power supply control signal via connector 410.
In addition, because digital analog converter 430 can be changed the single-end video signals that comes from connector 410 and export according to this analog video signal and horizontal/vertical synchronization signals, so interface card 400 also can be considered as a display card separately and be used, and has the multifunctionality of one card for multiple uses.
The 3rd embodiment
Please refer to Fig. 5, it illustrates the synoptic diagram according to the interface card of third embodiment of the invention.Interface card 500 comprises a connector 410, a USB (universal serial bus) 420, a universal serial bus concentrator (hub) 525, a digital analog converter 430, one first processing unit 440, one second processing unit 450, one first converting unit 460, one second converting unit 470, a network interface 480 and a video graphics array output terminal 490.Wherein, USB (universal serial bus) 420 is essentially inessential element.
The structure of interface card 500 and function class are similar to interface card 400, and both differences are that interface card 500 has universal serial bus concentrator 525.450 pairs of digital controlled signals from first processing unit 440 of second processing unit are handled and are exported a keyboard according to this to universal serial bus concentrator 425.Universal serial bus concentrator 525 receives and exports keyboard to connector 410.Connector 410 will export main frame to from the keyboard of universal serial bus concentrator 425.Certainly, universal serial bus concentrator 425 also can export keyboard to USB (universal serial bus) 420, and USB (universal serial bus) 420 exports the keyboard that is received to main frame again.
In the present embodiment, USB (universal serial bus) 420 also can connect peripheral units such as one group of near-end keyboard/mouse and receive the near-end control signal, universal serial bus concentrator 425 also can be sent to connector 410 with the near-end control signal that USB (universal serial bus) 420 is received, and connector 410 exports the keyboard that is received to main frame again.Wherein, USB (universal serial bus) 420 and universal serial bus concentrator 425 also can omit.
The disclosed interface card of the above embodiment of the present invention, connector modulesization with the signal spreaders system, make it can be plugged in main frame inside, and without external adapter (adapter), thus, not only can integrate and simplify the installation frame environment of total system, and can meet the demand of environmental protection.In addition, by the standby power on the motherboard of main frame inside,, promoted the convenience that uses so when main frame is in off-mode, still can carries out cold boot or power supply replacement, and need not worry the power supply supply problem that main frame is not started shooting by the far-end main control system.
In sum, though the present invention with a preferred embodiment openly as above, so it is not in order to limit the present invention.Those skilled in the art of the present invention, without departing from the spirit and scope of the present invention, when being used for a variety of modifications and variations.Therefore, protection scope of the present invention is as the criterion when looking the appended claims person of defining.
Claims (21)
1. interface card comprises:
A connector, a slot that is plugged in a main frame is to obtain the power supply supply from this main frame;
One KVM interface, have at least 18 pins, be electrically connected to a keyboard/mouse interface and a video interface of this main frame by a cable, receive a single-end video signals with this video interface, and export a keyboard this keyboard/mouse interface to this main frame from this main frame;
One processing unit is handled and is exported this keyboard according to this to this KVM interface a digital controlled signal;
One first converting unit, a differential video signals is changed and exported according to this to this single-end video signals that will come from this KVM interface;
This digital controlled signal is changed and exported according to this to one second converting unit to this processing unit with a differential control signal; And
One network interface, this differential video signals that will come from this first converting unit via a grid line exports a KVM switch or a remote control end module to, and come from this differential control signal of this KVM switch or this remote control end module via this grid line reception, and export this differential control signal to this second converting unit.
2. interface card as claimed in claim 1, wherein this connector is a golden finger.
3. interface card as claimed in claim 1, wherein this slot is positioned on the motherboard of this main frame.
4. interface card as claimed in claim 1, wherein this KVM interface is a SPHD18 interface.
5. interface card as claimed in claim 1, wherein this grid line is a CAT5/5e/6/7 cable.
6. interface card as claimed in claim 1, wherein this cable is one three and one 3-in-1 cable or one two and one 2-in-1 cable.
7. interface card as claimed in claim 1, wherein this second converting unit is a RS485 transceiver, a RS422 transceiver or a RS232 transceiver.
8. interface card as claimed in claim 1 also comprises:
One power supply reset cell is electrically connected to this processing unit and this main frame;
Wherein, this network interface is via the differential power control signal of this grid line reception from this KVM switch or this remote control end module, and this differential power control signal of output is to this second converting unit, this second converting unit is changed and is exported according to this a single ended power supply to this differential power control signal and controls signal to this processing unit, this processing unit is controlled this power supply reset cell according to this single ended power supply control signal, and this power supply reset cell makes this main frame carry out cold boot via this connector or power supply is reset.
9. interface card as claimed in claim 1 also comprises:
One interface card serial port interface is in order to be electrically connected to one of this main frame main frame serial port interface by another cable; And
One the 3rd converting unit is electrically connected to this processing unit and this interface card serial port interface;
Wherein, this network interface is via the differential power control signal of this grid line reception from this KVM switch or this remote control end module, and this differential power control signal of output is to this second converting unit;
This second converting unit is changed and is exported according to this one first Sequenced Power Supplys to this differential power control signal and controls signal to this processing unit;
This processing unit is changed and is exported according to this one second Sequenced Power Supplys to this first Sequenced Power Supplys control signal and controls signal to the 3rd converting unit;
The 3rd converting unit is changed and is exported according to this one the 3rd Sequenced Power Supplys to this second Sequenced Power Supplys control signal and controls signal to this interface card serial port interface;
This interface card serial port interface is sent to this main frame serial port interface of this main frame with the 3rd Sequenced Power Supplys control signal, make this main frame according to the 3rd Sequenced Power Supplys control signal carry out cold boot, power supply is reset or sequence control.
10. interface card as claimed in claim 9, wherein the level difference of this first, second and third Sequenced Power Supplys control signal.
11. interface card as claimed in claim 9, wherein the 3rd converting unit is a RS485 transceiver, a RS422 transceiver or a RS232 transceiver.
12. an interface card comprises:
A connector, a slot that is plugged in a main frame is to obtain the power supply supply and to receive a single-end video signals from this main frame;
One general-purpose serial bus USB interface is electrically connected to a keyboard/mouse interface of this main frame, to export a keyboard this keyboard/mouse interface to this main frame;
One digital analog converter, an analog video signal is changed and exported according to this to this single-end video signals that will come from this connector;
One first processing unit is handled a digital mixing signal and is exported a digital controlled signal according to this;
One second processing unit is handled and is exported this keyboard according to this to this USB (universal serial bus) this digital controlled signal;
One first converting unit, a differential video signals is changed and exported according to this to this analog video signal that will come from this digital analog converter;
This digital mixing signal is changed and exported according to this to one second converting unit to this first processing unit with a differential control signal;
One network interface, this differential video signals that will come from this first converting unit via a grid line exports a KVM switch or a remote control end module to, and come from this differential control signal of this KVM switch or this remote control end module via this grid line reception, and export this differential control signal to this second converting unit; And
One video graphics array output terminal, this analog video signal that will come from this digital analog converter exports a display to.
13. interface card as claimed in claim 12, wherein this connector is a golden finger, and this slot is positioned on the motherboard of this main frame.
14. interface card as claimed in claim 12, wherein this grid line is a CAT5/5e/6/7 cable.
15. interface card as claimed in claim 12, wherein, this network interface is via the differential power control signal of this grid line reception from this KVM switch or this remote control end module, and this differential power control signal of output is to this second converting unit, this second converting unit is changed and is exported according to this a single ended power supply to this differential power control signal and controls signal to this first processing unit, this first processing unit exports this single ended power supply control signal to this second processing unit, and this second processing unit makes this main frame carry out cold boot according to this single ended power supply control signal via this connector or power supply is reset.
16. an interface card comprises:
A connector, a slot that is plugged in a main frame to be obtaining power supply supply and to receive a single-end video signals from this main frame, and export a keyboard to this main frame;
One universal serial bus concentrator receives and exports this keyboard to this connector;
One digital analog converter, an analog video signal is changed and exported according to this to this single-end video signals that will come from this connector;
One first processing unit is handled a digital mixing signal and is exported a digital controlled signal according to this;
One second processing unit is handled and is exported this keyboard according to this to this universal serial bus concentrator this digital controlled signal;
One first converting unit, a differential video signals is changed and exported according to this to this analog video signal that will come from this digital analog converter;
This digital mixing signal is changed and exported according to this to one second converting unit to this first processing unit with a differential control signal;
One network interface, this differential video signals that will come from this first converting unit via a grid line exports a KVM switch or a remote control end module to, and come from this differential control signal of this KVM switch or this remote control end module via this grid line reception, and export this differential control signal to this second converting unit; And
One video graphics array output terminal, this analog video signal that will come from this digital analog converter exports a display to.
17. interface card as claimed in claim 16, wherein this connector is a golden finger, and this slot is positioned on the motherboard of this main frame.
18. interface card as claimed in claim 16, wherein this grid line is a CAT5/5e/6/7 cable.
19. interface card as claimed in claim 16, wherein, this network interface is via the differential power control signal of this grid line reception from this KVM switch or this remote control end module, and this differential power control signal of output is to this second converting unit, this second converting unit is changed and is exported according to this a single ended power supply to this differential power control signal and controls signal to this first processing unit, this first processing unit exports this single ended power supply control signal to this second processing unit, and this second processing unit makes this main frame carry out cold boot according to this single ended power supply control signal via this connector or power supply is reset.
20. interface card as claimed in claim 16, also comprise a USB (universal serial bus), be electrically connected to a keyboard/mouse interface of this main frame, receiving this keyboard, and export this keyboard to this main frame from this universal serial bus concentrator.
21. interface card as claimed in claim 16 also comprises a serial port interface, is electrically connected to a keyboard/mouse interface of this main frame, receiving this keyboard from this universal serial bus concentrator, and exports this keyboard to this main frame.
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| CN2008101494056A CN101673143B (en) | 2008-09-12 | 2008-09-12 | Interface card |
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| CN103870423B (en) * | 2012-12-18 | 2016-11-23 | 宏碁股份有限公司 | Use the connection system at lightning interface, attachment means and attaching method thereof |
| CN103399649A (en) * | 2013-08-22 | 2013-11-20 | 广东威创视讯科技股份有限公司 | Data processing method based on K virtual machine (KVM) and KVM transmitting device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2638129Y (en) * | 2003-07-16 | 2004-09-01 | 联想(北京)有限公司 | Mouse, keyboard and display exchanger used in machine group |
| CN1797322A (en) * | 2004-12-20 | 2006-07-05 | 建碁股份有限公司 | Computer image system and processing devices |
| CN101034999A (en) * | 2007-01-10 | 2007-09-12 | 北京航空航天大学 | Dual-machine communication board |
-
2008
- 2008-09-12 CN CN2008101494056A patent/CN101673143B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2638129Y (en) * | 2003-07-16 | 2004-09-01 | 联想(北京)有限公司 | Mouse, keyboard and display exchanger used in machine group |
| CN1797322A (en) * | 2004-12-20 | 2006-07-05 | 建碁股份有限公司 | Computer image system and processing devices |
| CN101034999A (en) * | 2007-01-10 | 2007-09-12 | 北京航空航天大学 | Dual-machine communication board |
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|---|---|
| CN101673143A (en) | 2010-03-17 |
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