Patents by Inventor Philip M. Kirshtein
Philip M. Kirshtein has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 9398072Abstract: In a KVM system, a system provides for USB devices to be accessed by target computers. A KVM switch connects a client with a target server via a network, the client computer having at least one device attached thereto. A second mechanism connects to a USB port of the target and communicates with the target using a USB protocol. A client mechanism communicates with the second mechanism via the network. A virtual media mechanism enables the target server to access the USB device attached to the client.Type: GrantFiled: November 13, 2009Date of Patent: July 19, 2016Assignee: Avocent CorporationInventors: Steven Blackwell, Christopher L. Thomas, Philip M. Kirshtein, David H. Stafford, James Vernon Pursel, Paul D. Durden
-
Patent number: 7730243Abstract: 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.Type: GrantFiled: May 18, 2007Date of Patent: June 1, 2010Assignee: Avocent CorporationInventor: Philip M. Kirshtein
-
Publication number: 20100077118Abstract: In a KVM system, a system provides for USB devices to be accessed by target computers. A KVM switch connects a client with a target server via a network, the client computer having at least one device attached thereto. A second mechanism connects to a USB port of the target and communicates with the target using a USB protocol. A client mechanism communicates with the second mechanism via the network. A virtual media mechanism enables the target server to access the USB device attached to the client.Type: ApplicationFiled: November 13, 2009Publication date: March 25, 2010Inventors: Steven Blackwell, Christopher L. Thomas, Philip M. Kirshtein, David H. Stafford, James Pursel, Paul D. Durden
-
Publication number: 20100057956Abstract: In a KVM system, a system provides for USB devices to be accessed by target computers. A KVM switch connects a client with a target server via a network, the client computer having at least one device attached thereto. A second mechanism connects to a USB port of the target and communicates with the target using a USB protocol. A client mechanism communicates with the second mechanism via the network. A virtual media mechanism enables the target server to access the USB device attached to the client.Type: ApplicationFiled: November 13, 2009Publication date: March 4, 2010Inventors: Steven Blackwell, Christopher L. Thomas, Philip M. Kirshtein, David H. Stafford, James Pursel, Paul D. Durden
-
Publication number: 20100045864Abstract: A transmission system for transmitting analog color video signals wherein a cable comprising multiple twisted pairs is employed, and certain of these pairs are coupled to carry selected color signals as a function of the delay provided by particular twist rates. In certain instances, selected signal delay devices are connected in circuit with certain twisted pairs. By such an arrangement, it has been found that relatively long distances between a computer and a monitor may be spanned by relatively low-cost, twisted pair cable commonly used for telephone communications.Type: ApplicationFiled: October 26, 2009Publication date: February 25, 2010Applicant: AVOCENT CORPORATIONInventors: Winston J. Stewart, Philip M. Kirshtein, Steven F. Brown, Robert R. Asprey
-
Patent number: 7643018Abstract: A transmission system for transmitting analog color video signals wherein a cable comprising multiple twisted pairs is employed, and certain of these pairs are coupled to carry selected color signals as a function of the delay provided by particular twist rates. In certain instances, selected signal delay devices are connected in circuit with certain twisted pairs. By such an arrangement, it has been found that relatively long distances between a computer and a monitor may be spanned by relatively low-cost, twisted pair cable commonly used for telephone communications.Type: GrantFiled: June 30, 2000Date of Patent: January 5, 2010Assignee: Avocent CorporationInventors: Steven F. Brown, Robert R. Asprey, Winston J. Stewart, Philip M. Kirshtein
-
Patent number: 7640382Abstract: In a KVM system, a system provides for USB devices to be accessed by target computers. A KVM switch connects a client with a target server via a network, the client computer having at least one device attached thereto. A second mechanism connects to a USB port of the target and communicates with the target using a USB protocol. A client mechanism communicates with the second mechanism via the network. A virtual media mechanism enables the target server to access the USB device attached to the client.Type: GrantFiled: April 25, 2006Date of Patent: December 29, 2009Assignee: Avocent CorporationInventors: Steven Blackwell, Christopher L. Thomas, Philip M. Kirshtein, David H. Stafford, James Vernon Pursel, Paul D. Durden
-
Patent number: 7590763Abstract: A computer interface device includes circuitry enclosed in a housing; a first cable electrically connected to the circuitry and integral with the housing; a video port connection plug electrically connected to the circuitry via the first cable; a mouse port connection plug electrically connected to the circuitry via a path through the housing of the video port connection plug; and a keyboard connection plug electrically connected to the circuitry via a path through the housing of the video port connection plug.Type: GrantFiled: May 6, 2005Date of Patent: September 15, 2009Assignee: Avocent CorporationInventors: Christopher L Thomas, Steven Brown, Philip M Kirshtein
-
Publication number: 20080288677Abstract: 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.Type: ApplicationFiled: May 18, 2007Publication date: November 20, 2008Applicant: Avocent CorporationInventor: Philip M. Kirshtein
-
Patent number: 7424551Abstract: A passive video multiplexing method and apparatus for encoding video synchronization signals within a KVM extension system. A Rack Interface Pod (RIP) is provided for receiving video signals from a network server and providing them to a remote user via a local area network (LAN). The analog signals received by the RIP are transmitted to a Rack Connection Manager (RCM) having video processing logic, a supervisory processor, a KVM switch system, and Ethernet interface circuitry. A plurality of ARI systems are connected to the RCM, and a plurality of network servers, intended to be controlled by the remote user, are connected to each ARI by a respective wiring strip or Pod Expansion Module (PEM). The RCM performs selective switching by sourcing current through a pair of diodes associated with an active channel of the PEM while reverse biasing diodes associated with an inactive channel to select a network server among the plurality of network servers.Type: GrantFiled: September 14, 2001Date of Patent: September 9, 2008Assignee: Avocent CorporationInventors: Vic Odyrna, Philip M. Kirshtein, Christopher L. Thomas
-
Patent number: 7275953Abstract: A wire comb for mounting individual wires from multi-wire cables onto circuit boards that is mounted adjacent one or more ends of a circuit board to permit the individual wires to be spaced apart yet held in place during an over molding process; and to permit connecting the wires to the appropriate connections on the circuit board.Type: GrantFiled: August 2, 2006Date of Patent: October 2, 2007Assignee: Avocent CorporationInventors: Steven F. Brown, Robert V. Seifert, Jr., Philip M. Kirshtein
-
Patent number: 7229310Abstract: An approach for mounting individual wires from multi-wire cables onto circuit boards. A wire comb is mounted adjacent one or more ends of the circuit board to permit a way to space apart individual wires, to hold them in place; and to permit welding or soldering of the wires to the appropriate connections on the circuit board.Type: GrantFiled: September 12, 2006Date of Patent: June 12, 2007Assignee: Avocent CorporationInventors: Steven F. Brown, Robert V. Seifert, Jr., Philip M. Kirshtein
-
Patent number: 7206348Abstract: A transmission system for transmitting analog color video signals wherein a cable comprising multiple twisted pairs is employed, and certain of these pairs are coupled to carry selected color signals as a function of the delay provided by particular twist rates. In certain instances, selected signal delay devices are connected in circuit with certain twisted pairs. By such an arrangement, it has been found that relatively long distances between a computer and monitor may be spanned by relatively low-cost, twisted pair cable commonly used for telephone communications.Type: GrantFiled: December 4, 2000Date of Patent: April 17, 2007Assignee: Avocent CorporationInventors: Winston J. Stewart, Philip M. Kirshtein, Steven F. Brown, Robert R. Asprey
-
Patent number: 7189103Abstract: An approach is provided for mounting individual wires from multi-wire cables onto circuit boards. A wire comb is mounted adjacent one or more ends of the circuit board to permit a way to space apart individual wires, to hold them in place; and to permit welding or soldering of the wires to the appropriate connections or the circuit board during an overmolding process.Type: GrantFiled: December 7, 2005Date of Patent: March 13, 2007Assignee: Avocent CorporationInventors: Steven F. Brown, Robert V. Seifert, Jr., Philip M. Kirshtein
-
Patent number: 7062596Abstract: A datalink for a system of N computers, and M monitors and peripheral devices is described. Separate state machines are provided for each switched computer, and separate state machines for each switched workstation, with a non-intrusive matrix switch disposed there-between. The matrix switch routes the peripheral data streams without intercepting them with a processor. The computer-side state machines and the workstation-side state machines are in a master/slave relationship, respectively, and communicate peripheral data using a half-duplex method of transfer.Type: GrantFiled: August 20, 2002Date of Patent: June 13, 2006Assignee: Avocent CorporationInventor: Philip M. Kirshtein
-
Patent number: 6671756Abstract: A KVM switch having a uniprocessor architecture that accommodate multiple users and multiple computers—even multiple users to a single computer—via interrupt servicing provides dramatic improvements over common matrix-type KVM switches. Further, such features as hot-plugging computers, and keep alive computers (during power outages) are not inhibited by the present architecture. OSD menuing is accommodated, even as to both users, and OSD configurations are field upgradeable using flash memory downloading. The present architecture also accommodates tiered arrangements.Type: GrantFiled: May 5, 2000Date of Patent: December 30, 2003Assignee: Avocent CorporationInventors: Christopher L. Thomas, Douglas D. Reed, David H. Stafford, Philip M. Kirshtein
-
Publication number: 20030041209Abstract: A datalink for a system of N computers, and M monitors and peripheral devices is described. Separate state machines are provided for each switched computer, and separate state machines for each switched workstation, with a non-intrusive matrix switch disposed there-between. The matrix switch routes the peripheral data streams without intercepting them with a processor. The computer-side state machines and the workstation-side state machines are in a master/slave relationship, respectively, and communicate peripheral data using a half-duplex method of transfer.Type: ApplicationFiled: August 20, 2002Publication date: February 27, 2003Inventor: Philip M. Kirshtein
-
Publication number: 20020143996Abstract: A passive video multiplexing method and apparatus for encoding video synchronization signals within a KVM extension system. A Rack Interface Pod (RIP) is provided for receiving video signals from a network server and providing them to a remote user via a local area network (LAN). The analog signals received by the RIP are transmitted to a Rack Connection Manager (RCM) having video processing logic, a supervisory processor, a KVM switch system, and Ethernet interface circuitry. A plurality of ARI systems are connected to the RCM, and a plurality of network servers, intended to be controlled by the remote user, are connected to each ARI by a respective wiring strip or Pod Expansion Module (PEM). The RCM performs selective switching by sourcing current through a pair of diodes associated with an active channel of the PEM while reverse biasing diodes associated with an inactive channel to select a network server among the plurality of network servers.Type: ApplicationFiled: September 14, 2001Publication date: October 3, 2002Inventors: Vic Odryna, Philip M. Kirshtein, Christopher L. Thomas
-
Publication number: 20020056137Abstract: A transmission system for transmitting analog color video signals wherein a cable comprising multiple twisted pairs is employed, and certain of these pairs are coupled to carry selected color signals as a function of the delay provided by particular twist rates. In certain instances, selected signal delay devices are connected in circuit with certain twisted pairs. By such an arrangement, it has been found that relatively long distances between a computer and monitor may be spanned by relatively low-cost, twisted pair cable commonly used for telephone communications.Type: ApplicationFiled: December 4, 2000Publication date: May 9, 2002Applicant: Cybex Computer Products CorporationInventors: Winston J. Stewart, Philip M. Kirshtein, Steven F. Brown, Robert R. Asprey
-
Patent number: 6377629Abstract: A transmission system for transmitting analog color video signals wherein a cable comprising multiple twisted pairs is employed, and certain of these pairs are coupled to carry selected color signals as a function of the delay provided by particular twist rates. In certain instances, selected signal delay devices are connected in circuit with certain twisted pairs. By such an arrangement, it has been found that relatively long distances between a computer and monitor may be spanned by relatively low-cost, twisted pair cable commonly used for telephone communications.Type: GrantFiled: April 20, 1999Date of Patent: April 23, 2002Assignee: Cybex Computer Products CorporationInventors: Winston J. Stewart, Philip M. Kirshtein, Steven F. Brown, Robert R. Asprey