Source: http://www.google.es/patents/US7249167?dq=flatulence
Timestamp: 2013-05-23 21:55:57
Document Index: 356106757

Matched Legal Cases: ['ART) 241', 'ART 241', 'ART 241', 'ART 230', 'ART 230', 'ART 241']

Patente US7249167 - Intelligent modular server management system for selectively operating a ... - Google PatentesB�squeda Im�genes Maps Play YouTube Noticias Gmail Drive M�s » B�squeda avanzada de patentes | Historial web | Iniciar sesi�n B�squeda avanzada de patentesPatentesAn intelligent, modular server management system for coupling a series of remotely located computers to one or more user stations allowing for selective access of the remotely located computers. A centralized computer matrix switching system is provided to enable a computer user station to access and...http://www.google.es/patents/US7249167?utm_source=gb-gplus-sharePatente US7249167 - Intelligent modular server management system for selectively operating a plurality of computers N�mero de publicaci�nUS7249167 B1Tipo de publicaci�nConcesi�n N�mero de solicitud09/709,759 Fecha de publicaci�n24 Jul 2007 Fecha de presentaci�n9 Nov 2000 Fecha de prioridad9 Nov 2000 InventoresYee S. LiawLee GlinskiAlex Lee Cesionario originalRaritan, Inc.Riip, Inc.Raritan Americas, Inc.Pnc Bank, National AssociationWells Fargo Bank, National Association (Successor By Merger To Wachovia Bank, National Association)Wachovia Bank Clasificaci�n de EE.UU.709/218710/51710/64710/38710/73 Clasificaci�n internacionalG06F15/16 Clasificaci�n cooperativaG06F3/023G06F3/038 Clasificaci�n europeaG06F3/023G06F3/038ReferenciasCitas de patentes (23) Citada por (11)Enlaces externosUSPTO Cesi�n de USPTO EspacenetIntelligent modular server management system for selectively operating a plurality of computersUS 7249167 B1 Resumen An intelligent, modular server management system for coupling a series of remotely located computers to one or more user stations allowing for selective access of the remotely located computers. A centralized computer matrix switching system is provided to enable a computer user station to access and operate a remotely located computer in a stable environment and transmit analog signals through the switching system over an extended range. The centralized computer matrix switching system receives the input from the computer user station or the remotely located computer, including the keyboard, video monitor and mouse signals, and transmits the signals as though the computer user station was directly coupled to the remotely located computer.
FIELD OF THE INVENTION The present invention relates generally to a server management system for coupling a series of remote computers to one or more user consoles allowing for selective access of remotely located computers whereby the one or more user consoles may remotely access and operate a series of remotely located computers through the user console's keyboard, video monitor and mouse.
BACKGROUND OF THE INVENTION In a typical computer environment, a Local Area Network (LAN) allows for several computer servers to be connected to provide the resources of each server to the other connected computers. In this system, a dedicated keyboard, video monitor and mouse is employed for each computer server.
Asprey U.S. Pat. No. 5,257,390 and Duo U.S. Pat. No. 6,137,455 disclose an extended range communications link having a first signal conditioning network located near and coupled to a computer. The network conditions the keyboard, video monitor and mouse signals. Conditioning of the video signals includes reducing their amplitude so the video signals do not significantly cause induced �crosstalk� in conductors adjacent to the video conductors. An extended range cable having a plurality of conductors is coupled to a signal conditioning circuit and conveys the conditioned, above-named signals, in addition to power and logic ground potentials, to a second signal conditioning network. The network restores the analog video signals to their original levels by reducing induced noise. Furthermore, Duo discloses an encoding system whereby the horizontal synchronizing and vertical synchronizing signals are encoded and transmitted through one single video line. However, Asprey and Duo fail to disclose a computer switching system thereby allowing one or more user work stations to access and operate multiple remotely located computers. Further, Asprey and Duo fail to provide an intelligent server management system with a centralized switching component which provides for reduced space consumption for linking multiple computer systems.
SUMMARY OF THE INVENTION It is often convenient to physically separate one or more computers from their external hardware (i.e., the keyboard, video monitor and mouse) allowing a network user to operate a computer from a remote location. One of the most popular microcomputers in use today is the IBM personal computer family, and its clones made by others, which generally utilize the same or a similar arrangement for interconnecting a keyboard, video monitor and mouse to the computer. There are separate electrical connectors on these computers for mating the interfaces of these devices. Specifically, one interface is available for connecting a video monitor cable, one for connecting a mouse cable and another for connecting a keyboard cable. Generally, these keyboard, video monitor and mouse cables are approximately six feet in length, allowing for limited separation from the actual computer mainframe. Therefore, this typically requires the computer and the computer console to be located in close proximity to one another. In many circumstances it may be desirable to separate the user console station from the actual computer station due to space constraints. However, one skilled in the art can readily appreciate the fact that in separating the external components of a computer from the computer bus, expensive cabling costs may be incurred. In addition, by removing the external components from the computer bus a decrease in the reliability of the computer stations due to �noise� or �crosstalk� may be experienced in the cabling over the increased distances. Furthermore, it has been discovered that by extending the separation of the keyboard, video monitor and mouse from the computer bus at distances greater than fifteen feet, a user may experience a decrease in keyboard and mouse signaling quality. Also, a loss in the video signal transmission frequently occurs resulting in a poor quality video picture for the user. In addition, by extending the range of the components over standard cable an increase in the impedance of the signal transmission occurs resulting in a decrease in the quality of the signal.
The use of the Category 5 UTP cable as the cabling for the user station 108 to the switching matrix unit 112 and the switching matrix unit 112 to the computer interface module 116 provides a single cabling alternative. It is known in the art to use multiple cables for each user console (i.e., two unidirectional cables). However, in the present invention the desired signaling requirements are achieved through the use of a single Category 5 UTP cable. The single Category 5 UTP cable provides an effective cabling alternative while still maintaining the desired signal attributes. Thus, the need for expensive cabling is reduced as a single Category 5 UTP cable is utilized in this application. This connection of user station 108 to the matrix switching unit 112 and the matrix switching unit 112 to the computer interface module 116 may be repeated for multiple user stations 108, 128, . . . �n� and multiple remotely located computers 118, 138 . . . �n�. Although it is contemplated that �n� may be defined as any integer, in the present embodiment of a standard configuration of the invention it has been established that the matrix switching unit may be expanded to allow for eight user stations and thirty two remotely located computers to achieve the optimum results. Furthermore, in the preferred embodiment, the system may be tiered to allow for thirty two user stations to access and operate up to two thousand forty eight remotely located computers.
Turning next to FIG. 2, depicted is a block diagram of the matrix switching unit 112. The matrix switching unit 112 enables multiple network users to access and operate multiple remotely located computers. Access to the remotely located computers is provided via the keyboard, video monitor and mouse ports. Access is completely independent of the associated computer network of the computer system. The signal transmissions of the remotely located computers are routed through a computer interface module through a single Category 5 UTP cable to the channel ports 202, 204, . . . �n.� The channel ports 202, 204, . . . �n� provide an interface connection for a single Category 5 UTP cable to the matrix switching unit 112. The unidirectional (i.e., remotely located computers to the user station) video monitor signal 222 is routed through the channel ports 202, 204, . . . �n� to a video differential switch 206. The video differential switch 206, including a video driver, provides for high-bandwidth video transmission. The unidirectional video monitor signal 222 is directly routed to a series of user ports 216, 218, . . . �n.� The user ports 216, 218, . . . �n� transmit the video monitor signal through a Category 5 UTP cable to the desired user station.
In addition, the channel ports 202, 204, . . . �n� provide an interface connection for the Category 5 UTP cable to the matrix switching unit 112 for the bidirectional keyboard 220 and bidirectional mouse signal 220. The bidirectional keyboard 220 and bidirectional mouse signals 220 are routed through the matrix switching unit 112 to a series of user ports 216, 218, . . . �n� to be routed to the user stations or the remotely located computers via a single Category 5 UTP cable. Specifically, within the matrix switching unit 112, the signals are routed to a switch 214 which routes the signals from the remotely located computers to the desired user station. The bidirectional keyboard 220 and bidirectional mouse signals 220 are then routed to a universal asynchronous receiver transmitter (UART) 241, 243, . . . �n�. A plurality of UARTs are provided for each remotely located computer that is linked to the intelligent, modular switching system. The UART 241, 243, . . . �n� acts as a transceiver of the signal transmission for the user stations. From the UART 241, 243, . . . �n� the bidirectional keyboard 220 and bidirectional mouse signals 220 are routed to a computer processing unit (CPU) 212. The CPU 212 interprets the associated command data contained in the bidirectional keyboard 220 and bidirectional mouse signals 220, to effectively route the transmitted bidirectional keyboard 220 and bidirectional mouse signals 220 while controlling the switch 214 to analyze which connected user station will receive the bidirectional keyboard 220 and bidirectional mouse signals 220. The CPU 212 processes the bidirectional keyboard 220 and bidirectional mouse signals 220 and forwards the bidirectional keyboard 220 and bidirectional mouse signals 220 to a second UART 230, 232, . . . �n� which represents the desired user station that is to receive the bidirectional keyboard 220 and bidirectional mouse signals 220. The signal is routed to the desired user port 216, 218, . . . �n� to be transmitted through a Category 5 UTP cable to the desired user station.
Conversely, the bidirectional keyboard 220 and bidirectional mouse signals 220 may be transmitted from the user station to the remotely located computers. For example, bidirectional keyboard 220 and bidirectional mouse signals 220 are transmitted via a Category 5 UTP cable through the user ports 216, 218, . . . �n.� The bidirectional keyboard 220 and bidirectional mouse signals 220 are routed through a UART 230, 232, . . . �n� which transmits the bidirectional keyboard 220 and bidirectional mouse signals 220 to a CPU 212. The CPU 212 interprets the associated command data contained in the bidirectional keyboard 220 and bidirectional mouse signals 220 to effectively route the transmitted bidirectional keyboard 220 and bidirectional mouse signals 220. The CPU 212 processes the bidirectional keyboard 220 and bidirectional mouse signals 220 and forwards the bidirectional keyboard 220 and bidirectional mouse signals 220 to a second UART 241, 243, . . . �n� which represents the desired remotely located computer that is to be accessed by the bidirectional keyboard 220 and bidirectional mouse signals 220. The bidirectional keyboard 220 and bidirectional mouse signals 220 are routed to a switch 214 which routes the signals from the user station to the desired remotely located computers. Subsequently, the bidirectional keyboard 220 and bidirectional mouse signals 220 are routed through the desired channel port 202, 204, . . . �n� to be transmitted-via a single Category 5 UTP cable to the desired location.
In one example of the enhanced tuning mechanism 304, the horizontal sync is carried by the Green video signal while the vertical sync is carried by the Blue video signal. However, it is known to one of ordinary skill in the art that several alternatives are available for the wiring configuration (i.e., horizontal sync carried by the Red video signal, vertical sync carried by the Blue video signal, . . . ). The horizontal and vertical syncs are carried as negative pulses since the video signals are positive pulses. To achieve the desired restoration of signals a precise impulse is injected along the horizontal sync providing a precise reference point for the enhanced automatic tuning system. Specifically, the horizontal sync is injected with a precise, known amplitude and precise square pulse signal shape. The raw blue signal with the superimposed vertical sync is routed to a slow peak detector 614. The slow peak detector 614 detects the amplitude of the vertical sync pulse. An automatic cable equalization circuit 618 within the enhanced automatic tuning system analyzes the amplitude of the received signal determined by the slow peak detector 614 and compares the amplitude of the received signal to the precise known amplitude and shape of the precise impulse 616. The automatic cable equalization circuit 618 then adjusts a variable gain amplifier 610 until the amplitude of the received signal is proportional to the known, precise impulse of the horizontal sync. In addition, the automatic cable equalization circuit 618 analyzes the �rising edge� of the received signal and adjusts a variable frequency compensation amplifier 612 until the signal wave shape of the received sync pulse is proportional to the signal wave shape of the known, precise impulse of the horizontal sync.
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