288 results about "KVM switch" patented technology

A KVM switch with Intelligent Platform Management Interface (IPMI) function is disclosed. The present KVM switch includes a computer interface, a console interface, a network interface circuit, a processor and a memory. The computer interface is capable of connection to at least one computing device having a baseboard management controller (BMC). The console interface is capable of connection to at least one console device. The network interface circuit is capable of connection to the BMC via a network. The processor routes a communication path between the computing device and the console device. The memory stores an IPMI firmware. The processor manages the computing device through the BMC by executing the IPMI firmware, and generates an IPMI menu.

A system and method of communicating keyboard, video and cursor control (or mouse) data from a plurality of servers to one or more client workstations through one or more keyboard, video, mouse (KVM) switches is disclosed. Wireless communication techniques are used to transmit data between the system components including between the servers and the KVM switches. The servers, which may be blade servers, are typically co-located in single rack environment. Wireless communication techniques may also be used to communicate between the client workstations and the KVM switches.

The present invention relates to a system and method for switching USB keyboard and mouse interfaces and video interfaces between host interfaces over extended distances. Provided is a distributed KVM switch where a USB keyboard and mouse is emulated to the host interfaces of the KVM switch and a USB host is emulated to keyboard and mouse interfaces of the KVM switch. In addition, the USB keyboard and mouse interfaces and the video interfaces are separated from the host interfaces by a non-USB communications channel.

A keyboard/video/mouse (KVM) switching protocol is disclosed in which KVM information is applied to a network of workstations. At least one data converter communicates on the workstation network and retrieves KVM information from the workstation network that is addressed to a server assigned to the converter. The converter places the KVM information in a format suitable to the assigned server and applies the converted KVM information to the appropriate standard device ports of the server. The system provides motherboard access to the servers that is characteristics of KVM switches but provides essentially unlimited scalability not known in traditional KVM switches.

The present invention discloses a bidirectional convertible KVM switch assembly structure and its KVM switch, wherein the assembly structure uses a base to contain a KVM switch connected to a rear end of a four-in-one KVM switch and fixes the KVM switch, and the base and the KVM switch are latched with each other by male and female connectors (or male and female header receptacles), so that the KVM switch with a different number of ports (such as 4 ports, 8 ports or 16 ports) can be changed according to a user's requirement, and it is not necessary to remove the whole 4-in-1 structure and the fixed base for installing the KVM switch, and the KVM switch with a different number of ports can be latched directly with the fixed base.

A blade server system with integrated KVM switches is described. The blade server system has a chassis, a management board, a plurality of blade servers, and an output port. Each of the blade servers has a decoder and a switch. Each of the blade servers further has a select button and a processor. The decoder receives an encoded data from the management board and decodes the encoded data into command information when one of the blade servers is selected. The switch receives the command information and is switched according to the command information. The command information indicates which switch is to be turned on and which are to be turned off. The output port connects the peripheral devices for controlling the selected blade server. The management board may determine which blade server is to be selected by the button condition, commands from the peripheral devices or a request from a network computer.

A KVM switch system with external control functionality is described. A KVM switch is able to be controlled from an external device. The external device can either include a single button dedicated to controlling the desktop KVM switch or indicate a state of the KVM switch. The external device can be connected to the desktop KVM switch through a plurality of communication media. The external device can be small in size and attached to an object on a user's desktop.

A signal switch for sharing a video monitor, a plurality of console devices compliant with an industry standard and one or more than one peripheral device in any of a plurality of computer systems, is provided. A KVM switch allows all the computers connected to the switch to share any USB peripheral devices, and which can switch the KVM channels and peripheral channels to a common computer or to different computers either asynchronously or synchronously without interruption of data flow to that peripheral when the switch is changed. In another embodiment the KVM switch allows a keyboard and a mouse of a user console to separately control two different computers. In another embodiment, the KVM switch is connected to the computers via computer connection modules and connected to a user console and peripheral devices via a console connection module.

A method and apparatus of discovering and installing managed appliances remotely using a protocol for communication on the network is described. The protocol permits a client workstation to issue a broadcast message on the network. The managed appliances will send a reply message to the workstation which includes their current IP configuration. If a managed appliance has not been properly configured, the workstation can remotely instruct the managed appliance to set its IP configuration as desired. In the event that the managed appliance is a KVM switch, the managed appliance can store information about the servers connected to it. This information can be requested by and reported to the workstation using the protocol.

A device for interfacing an input device and a computer includes a microprocessor in communication with a memory, the memory storing download instructions and having a re-writable memory area for storing input device driver data downloadable by the microprocessor using the download instructions. The microprocessor is programmed to use the input device driver data to enable data transmission between the computer and the input device. In an alternative device, the microprocessor is programmed to extract input device driver data from data transmitted to the device in a standard input device protocol and to save the input device driver data in the memory. An upgradeable KVMA and KVM switch and extender including such devices are described.

A KVM switch and an operation method thereof can share at least one USB device to a plurality of computers, and the computers can directly communicate with the USB device through a switch module. The KVM switch further comprises a microprocessor and a USB controller. When switching in the KVM switch, by using the set information command in USB specification, the microprocessor can control the USB controller to interfere in setting the USB device to become receiving a signal sent by the computer which recognition data is representative. Then, the computers need not execute the enumeration process to recognize the USB device in every switching time. Hence, the KVM switch can improve the compatibility problem and increase switching efficiency.

A method of wake-up scan for a keyboard-video-mouse (KVM) switch is disclosed. The method of wake-up scan includes steps (a) to (d). The step (a) is switching to a target computer. The step (b) is sending a simulated keyboard and/or mouse signal to the target computer for waking up the target computer. The step (c) is transmitting a video signal of the target computer to a console display and the step (d) is returning to step (a) until a termination command is received. The KVM switch includes a switching mechanism for switching to the least one target computer. The switching mechanism can includes a first switching device for video signal and a second switching device for keyboard and/or mouse signal. Alternatively, the switching mechanism includes a crosspoint switch to transmit the video signal, to detect the video signal and to send the simulated keyboard and/or mouse signal simultaneously.

This invention discloses a kind of ATCA machine frame management system, which includes: Console, Box management controller for SMC, and the server boards which are set with the data transmission module KVM and the server system. The connection between the console and the SMC is through the net, while the one between the SMC and the data transmission module KVM is through the reinforced IPMB bus connection in which Y-Y connection is in use. The SMC is used to send the operation information on the keyboard and the mouse from the console to the related severs system through the IPMB bus connection. The data transmission module KVM is used to send the video data to the console through the IPMB bus connection. In addition, this invention also discloses a method to realize the long-distance control on the server. With this invention, no external KVM switches are needed, as the result, the space and the cost are reduced, and the confusion of the connection is escaped. It can also enhance the security and the stability of the system, and realize the unification of the management on the KVM user and the frame, which will reduce the cost and the difficult of the system maintenance.

A KVM switch system capable of communicating with a selected computer through a single cable is disclosed. Between the computer and the KVM switch system, keyboard/mouse data is transmitted and video data is received through a single cable. The KVM switch system includes a protocol controller, a graphic controller, a switch and a plurality of transceivers. The KVM switch system is coupled to plural computers. The protocol controller transforms keyboard/mouse signals into the keyboard/mouse data in a protocol standard and transforms the video data in the same protocol standard into video signals. The graphic controller receives the video signals from the protocol controller and transmits the video signals to a display. The switch routes the keyboard/mouse data and the video data according to a processor of the KVM switch system. The transceivers, each coupling the switch to each of plural computers with one single cable respectively, transmits the keyboard/mouse data to the selected computer and receives the video data from the selected computer over single protocol standard through the single cable.

A KVM switch capable of providing real EDID of a display, rather than default EDID, to a computer coupled thereto. The KVM switch includes a processor, at least one memory and at least one switch. The processor queries EDID of the display when the KVM switch is booted and stores the EDID in the memory. The switch couples the computer to the display or the memory to provide the EDID of the display or from the memory to the computer. When the EDID is not available from the memory, the switch couples the computer to the display. When the EDID is not available from the display, the switch couples the computer to the memory. The KVM switch further includes a multiplexer. The multiplexer couples the processor to at least one memory for transferring the EDID of the display to the memory at a time.

A keyboard-video-mouse (KVM) system is disclosed. The KVM system comprises a module, a KVM switch and a signal cable. The module transmits a single-ended video signal from a computer, converts a universal asynchronous receiver/transmitter (UART) signal to an input/output (IO) signal, and transmits the IO signal to the computer. The KVM switch receives the single-ended video signal from the module and outputs the UART signal to the module. The signal cable transmits the single-ended video signal from the module to the KVM switch and transmits the UART signal from the KVM switch to the first module.

A switch device that allows a user to use the same non-Bluetooth user console (e.g., keyboard, mouse) to control both non-Bluetooth computers and Bluetooth master machines such as tablet computers, smart phones, etc. The switch device includes a console port for connecting to the console and one or more computer ports for connecting to one or more computers, as well as a Bluetooth module for communicating with Bluetooth master machines. A controller processes input device data received via the console port, and either sends the data to a selected Bluetooth master machine or a selected computer, or perform other functions such as switching, Bluetooth device pairing and disconnecting based on the input device data. The controller stores link information of the Bluetooth master machines already paired with the computer switch for quickly switching to a Bluetooth master machine. The switch device can be with or without video switching.

A control management system for controlling electrical devices is disclosed. The control management system comprises a plurality of electrical devices, and a keyboard-video-mouse switch. Each electrical device corresponds to a transforming unit for generating a protocol command signal, and a first protocol signal transceiver for wirelessly transmitting the protocol command signal via a communication interface. The keyboard-video-mouse switch comprises a plurality of second protocol signal transceivers, a plurality of converting modules, a plurality of system controllers, and a switch unit. Each of the second protocol signal transceiver corresponds to one of the first protocol signal transceivers and is used for receiving the protocol command signal from the corresponding first protocol signal transceiver. Each converting module, coupled to one of the plurality of second protocol signal transceivers, is used for converting the protocol command signal into a driving command. Each system controller, coupled to one of the plurality of converting module, is used for generating video/audio data stream based on the driving command. A switch unit is used for switching to a route to deliver the video/audio data stream from one of the plurality of converting modules to a display.

An improved KVM switch is provided which enables computers to be connected to the KVM switch by reduced numbers of cables. It also supports transmission of digital audio signals between the computers and the KVM switch. A single USB port is provided to transmit keyboard, mouse, speaker and microphone signals between the KVM switch and each computer. The improved KVM switch is provided with one or more USB hubs to separate the keyboard/mouse signals and the digital audio signals, and one or more audio codecs to convert the audio signals from a digital form to an analog form and vice versa.

In server-client system, such as an IKVM, where a server and a client are connected via a network, an ROI (region of interest) function is provided which allows an ROI area of the video image displayed on the client to have higher image quality and/or magnification than the rest of the image. The client defines an ROI area and transmits the ROI parameters to the server. The server processes video data in the ROI area and non-ROI area differently in various stages of video data processing, including video data sampling/scaling, processing, compression, and transmission, so that the image in the ROI area has a higher image quality and/or magnification. The client may also cooperate with the server to accomplish the ROI function, such as by performing image enhancement processing of the ROI area during image display.

In a KVM switch system in which one or more consoles and one or more computers are connected to a KVM switch via dongles (console dongles and computer dongles, respectively), a method is provided for transferring the extended display identification data (EDID) of a display of a console to a computer. When the console is booted, the corresponding console dongle queries the display to obtain its EDID, and transmits it to the computer dongle via the KVM switch. The computer dongle stores the received EDID in its memory. The computer dongle also stores a default EDID in its memory. When the computer queries EDID, the computer dongle provides either the received EDID to the computer, or provide the default EDID if no EDID has been received from the KVM switch.