Patents by Inventor Victor J. Griswold
Victor J. Griswold 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).
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Publication number: 20180094984Abstract: A sensing system for bins includes a bin with at least one light emitting diode operatively mounted to the bin. At least one receiver for detecting IR light from the at least one light emitting diode is also operatively mounted to the bin. A microcontroller is operatively connected to the at least one light emitting diode and the at least one receiver. A wireless transmitter is operatively connected to the microcontroller for relaying information regarding the content status of the bin to an indicator. The at least one light emitting diode, the at least one receiver, the wireless transmitter, and the microcontroller are operatively connected to a power source.Type: ApplicationFiled: October 3, 2017Publication date: April 5, 2018Inventors: Robert Sadinski, Christopher J. Clark, Travis D. Shamp, Scott Wiley, Kevin R. Darrah, Robert Ralph Scaccia, Christopher H. Myers, Victor J. Griswold
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Patent number: 8457028Abstract: A method for providing a superior quality of service for multicast data streams delivered over a wireless local area network. As Internet Protocol multicast data streams are received by an access point, the access point observes Internet Group Multicast Protocol registration messages to determine which of its associated stations subscribe to each multicast data stream. The access point then determines which of the multicast data streams it receives have only active subscribing stations as opposed to those data streams having at least one associated station operating in power-save mode. The access point will automatically transmit each multicast data stream having only active subscribers immediately to the associated active stations, while buffering the multicast data stream for which there is at least one associated station operating in power-save mode.Type: GrantFiled: February 29, 2008Date of Patent: June 4, 2013Assignee: Cisco Technology, Inc.Inventors: Victor J. Griswold, Robert Meier
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Patent number: 8074070Abstract: A method wherein an access point authenticates itself with neighboring access points and establishes secure and mutually authenticated communication channels with its neighboring access points. When an access point learns of a neighboring access point, it initiates an authentication with an authentication server through the neighboring access point. Once access points have mutually authenticated each other, whenever a station authenticates itself with a first access point, the first access point communicates the station's authentication context information, for example session key and session identifier, to each neighboring access point. Thus, when the station roams to a neighboring access point, the neighboring access point presents the station with a reauthentication protocol, for example LEAP reauthentication, and if the reauthentication is successful, communication between the station and the neighboring access point takes place immediately and no new EAP authentication needs to occur.Type: GrantFiled: January 29, 2008Date of Patent: December 6, 2011Assignee: Cisco Technology, Inc.Inventors: Richard D. Rebo, Victor J. Griswold
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Patent number: 7844057Abstract: A method and system for handling roaming mobile nodes in a wireless network. The system uses a Subnet Context Manager to store current Network session keys, security policy and duration of the session (e.g. session timeout) for mobile nodes, which is established when the mobile node is initially authenticated. Pairwise transit keys are derived from the network session key. The Subnet Context Manager handles subsequent reassociation requests. When a mobile node roams to a new access point, the access point obtains the network session key from the Subnet Context Manager and validates the mobile node by computing a new pairwise transient key from the network session key.Type: GrantFiled: July 2, 2007Date of Patent: November 30, 2010Assignee: Cisco Technology, Inc.Inventors: Robert Meier, Richard D. Rebo, Victor J. Griswold, Douglas Smith, Nancy Cam Winget
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Patent number: 7706345Abstract: A Wireless LAN Context Control Protocol (WLCCP) is used to establish and manage a wireless network topology and securely manages the “operational context” for mobile stations in a campus network. The WLCCP registration protocol can automatically create and delete links in the network, securely distribute operational context, and reliably establish Layer 2 forwarding paths on wireless links. A single infrastructure node is established as the central control point for each subnet, and enables APs and MNs to select the parent node that provides the “least-cost path” to a backbone LAN. Context messages provide a general-purpose transport for context and management information. WLCCP “Trace” messages facilitate network diagnostic tools. Ethernet or UDP/IP encapsulation can be used for WLCCP messages. Ethernet encapsulation is employed for intra-subnet (e.g. AP-to-AP or AP-to-SCM) WLCCP messages. IP encapsulation is used for inter-subnet WLCCP messages and may also be used for intra-subnet WLCCP messages.Type: GrantFiled: June 29, 2009Date of Patent: April 27, 2010Assignee: Cisco Technology, Inc.Inventors: Robert Meier, Richard D. Rebo, Victor J. Griswold, Douglas Smith, Nancy Cam Winget
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Patent number: 7688981Abstract: In an example embodiment, a system for providing a Virtual Local Area Network (VLAN) by use of encryption states or encryption keys for identifying a VLAN. A table of data including a VLAN and an associated encryption state or key is provided for assignment of encryption states or keys, for devices in a wireless local area network.Type: GrantFiled: January 31, 2007Date of Patent: March 30, 2010Assignee: Cisco Technology, Inc.Inventors: David E. Halasz, Victor J. Griswold, Robert C. Meier, Merwyn B. Andrade, Richard D. Rebo
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Publication number: 20090262718Abstract: A Wireless LAN Context Control Protocol (WLCCP) is used to establish and manage a wireless network topology and securely manages the “operational context” for mobile stations in a campus network. The WLCCP registration protocol can automatically create and delete links in the network, securely distribute operational context, and reliably establish Layer 2 forwarding paths on wireless links. A single infrastructure node is established as the central control point for each subnet, and enables APs and MNs to select the parent node that provides the “least-cost path” to a backbone LAN. Context messages provide a general-purpose transport for context and management information. WLCCP “Trace” messages facilitate network diagnostic tools. Ethernet or UDP/IP encapsulation can be used for WLCCP messages. Ethernet encapsulation is employed for intra-subnet (e.g. AP-to-AP or AP-to-SCM) WLCCP messages. IP encapsulation is used for inter-subnet WLCCP messages and may also be used for intra-subnet WLCCP messages.Type: ApplicationFiled: June 29, 2009Publication date: October 22, 2009Inventors: Robert MEIER, Richard D. Rebo, Victor J. Griswold, Douglas Smith, Nancy Cam Winget
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Patent number: 7561549Abstract: A Wireless LAN Context Control Protocol (WLCCP) is used to establish and manage a wireless network topology and securely manages the “operational context” for mobile stations in a campus network. The WLCCP registration protocol can automatically create and delete links in the network, securely distribute operational context, and reliably establish Layer 2 forwarding paths on wireless links. A single infrastructure node is established as the central control point for each subnet, and enables APs and MNs to select the parent node that provides the “least-cost path” to a backbone LAN. Context messages provide a general-purpose transport for context and management information. WLCCP “Trace” messages facilitate network diagnostic tools. Ethernet or UDP/IP encapsulation can be used for WLCCP messages. Ethernet encapsulation is employed for intra-subnet (e.g. AP-to-AP or AP-to-SCM) WLCCP messages. IP encapsulation is used for inter-subnet WLCCP messages and may also be used for intra-subnet WLCCP messages.Type: GrantFiled: May 4, 2005Date of Patent: July 14, 2009Assignee: Cisco Technology, Inc.Inventors: Robert Meier, Richard D. Rebo, Victor J. Griswold, Douglas Smith, Nancy Cam Winget
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Patent number: 7493084Abstract: A method for associating a WSTA to a service set, wherein the service set is configurable at the AP. Each service set is an arbitrary grouping of one or more network service parameters, and is typically configured for either VLAN or proxy mobile IP host. When a wireless station desires to associate with an access point, the wireless station sends a message to the access point, the message containing a SSID. The access point then matches the SSID to a service set and associates the WSTA to either a home subnet or a VLAN based on the SSID. By locally configuring the service set, the default VLAN and home subnet for a WSTA may be different at each AP the WSTA encounters. A security server is configured with a list of allowed SSIDs for each wireless station to prevent unauthorized access to a VLAN or home subnet.Type: GrantFiled: April 15, 2005Date of Patent: February 17, 2009Inventors: Robert C. Meier, Tim Olson, Victor J. Griswold, Sheausong Yang, Bhavannarayana Nelakanti
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Patent number: 7489648Abstract: A method for an access point to provide immediate delivery of low-latency data packets to one virtual local area network when there are one or more associated stations operating in Power-Save-Protocol on another virtual local area network. The access point observes all the virtual local area networks to which it provides access to associated stations. The access point then determines which of the virtual local area networks contains only active stations. The access point then tracks the virtual local area network having only active stations and immediately transmits to the network incoming multicast/broadcast data packets.Type: GrantFiled: March 11, 2004Date of Patent: February 10, 2009Inventor: Victor J. Griswold
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Publication number: 20080144559Abstract: A method for providing a superior quality of service for multicast data streams delivered over a wireless local area network. As Internet Protocol multicast data streams are received by an access point, the access point observes Internet Group Multicast Protocol registration messages to determine which of its associated stations subscribe to each multicast data stream. The access point then determines which of the multicast data streams it receives have only active subscribing stations as opposed to those data streams having at least one associated station operating in power-save mode. The access point will automatically transmit each multicast data stream having only active subscribers immediately to the associated active stations, while buffering the multicast data stream for which there is at least one associated station operating in power-save mode.Type: ApplicationFiled: February 29, 2008Publication date: June 19, 2008Inventors: Victor J. Griswold, Robert Meier
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Patent number: 7362757Abstract: A method for providing a superior quality of service for multicast data streams delivered over a wireless local area network. As Internet Protocol multicast data streams are received by an access point, the access point observes Internet Group Multicast Protocol registration messages to determine which of its associated stations subscribe to each multicast data stream. The access point then determines which of the multicast data streams it receives have only active subscribing stations as opposed to those data streams having at least one associated station operating in power-save mode. The access point will automatically transmit each multicast data stream having only active subscribers immediately to the associated active stations, while buffering the multicast data stream for which there is at least one associated station operating in power-save mode.Type: GrantFiled: November 26, 2003Date of Patent: April 22, 2008Assignee: Cisco Technology, Inc.Inventors: Victor J. Griswold, Robert Meier
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Patent number: 7350077Abstract: A method and system for handling roaming mobile nodes in a wireless network. The system uses a Subnet Context Manager to store current Network session keys, security policy and duration of the session (e.g. session timeout) for mobile nodes, which is established when the mobile node is initially authenticated. Pairwise transit keys are derived from the network session key. The Subnet Context Manager handles subsequent reassociation requests. When a mobile node roams to a new access point, the access point obtains the network session key from the Subnet Context Manager and validates the mobile node by computing a new pairwise transient key from the network session key.Type: GrantFiled: April 17, 2003Date of Patent: March 25, 2008Assignee: Cisco Technology, Inc.Inventors: Robert Meier, Richard D. Rebo, Victor J. Griswold, Douglas Smith, Nancy Cam Winget
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Patent number: 7346772Abstract: A method wherein an access point authenticates itself with neighboring access points and establishes secure and mutually authenticated communication channels with its neighboring access points. When an access point learns of a neighboring access point, it initiates an authentication with an authentication server through the neighboring access point. Once access points have mutually authenticated each other, whenever a station authenticates itself with a first access point, the first access point communicates the station's authentication context information, for example session key and session identifier, to each neighboring access point. Thus, when the station roams to a neighboring access point, the neighboring access point presents the station with a reauthentication protocol, for example LEAP reauthentication, and if the reauthentication is successful, communication between the station and the neighboring access point takes place immediately and no new EAP authentication needs to occur.Type: GrantFiled: January 17, 2003Date of Patent: March 18, 2008Assignee: Cisco Technology, Inc.Inventors: Richard D. Rebo, Victor J. Griswold
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Patent number: 7194622Abstract: A system for providing a Virtual Local Area Network (VLAN) by use of an encryption states or encryption keys for identifying a VLAN. A table of data including a VLAN and an associated encryption state or key is provided for assignment of encryption states or keys, for devices in a wireless local area network.Type: GrantFiled: December 13, 2001Date of Patent: March 20, 2007Assignee: Cisco Technology, Inc.Inventors: David E. Halasz, Victor J. Griswold, Robert C. Meier, Merwyn B. Andrade, Richard D. Rebo
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Patent number: 7042865Abstract: A method and system of selective data transmission is disclosed. A plurality of data packets are transmitted wherein at least a portion of the data packets have one or more predetermined identifiers. The data packets having the predetermined identifier are selected and forwarded to a desired recipient.Type: GrantFiled: November 16, 2001Date of Patent: May 9, 2006Assignee: Cisco Technology, Inc.Inventors: Robert C. Meier, Victor J. Griswold, Liwen Wu
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Patent number: 6950628Abstract: A method for associating a WSTA to a service set, wherein the service set is configurable at the AP. Each service set is an arbitrary grouping of one or more network service parameters, and is typically configured for either VLAN or proxy mobile IP host. When a wireless station desires to associate with an access point, the wireless station sends a message to the access point, the message containing a SSID. The access point then matches the SSID to a service set and associates the WSTA to either a home subnet or a VLAN based on the SSID. By locally configuring the service set, the default VLAN and home subnet for a WSTA may be different at each AP the WSTA encounters. A security server is configured with a list of allowed SSIDs for each wireless station to prevent unauthorized access to a VLAN or home subnet.Type: GrantFiled: August 2, 2002Date of Patent: September 27, 2005Assignee: Cisco Technology, Inc.Inventors: Robert C. Meier, Tim Olson, Victor J. Griswold, Sheausong Yang, Bhavannarayana Nelakanti
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Publication number: 20040103282Abstract: A method and system for handling roaming mobile nodes in a wireless network. The system uses a Subnet Context Manager to store current Network session keys, security policy and duration of the session (e.g. session timeout) for mobile nodes, which is established when the mobile node is initially authenticated. Pairwise transit keys are derived from the network session key. The Subnet Context Manager handles subsequent reassociation requests. When a mobile node roams to a new access point, the access point obtains the network session key from the Subnet Context Manager and validates the mobile node by computing a new pairwise transient key from the network session key.Type: ApplicationFiled: April 17, 2003Publication date: May 27, 2004Inventors: Robert Meier, Richard D. Rebo, Victor J. Griswold, Douglas Smith, Nancy Cam Winget
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Publication number: 20040098586Abstract: A method wherein an access point authenticates itself with neighboring access points and establishes secure and mutually authenticated communication channels with its neighboring access points. When an access point learns of a neighboring access point, it initiates an authentication with an authentication server through the neighboring access point. Once access points have mutually authenticated each other, whenever a station authenticates itself with a first access point, the first access point communicates the station's authentication context information, for example session key and session identifier, to each neighboring access point. Thus, when the station roams to a neighboring access point, the neighboring access point presents the station with a reauthentication protocol, for example LEAP reauthentication, and if the reauthentication is successful, communication between the station and the neighboring access point takes place immediately and no new EAP authentication needs to occur.Type: ApplicationFiled: January 17, 2003Publication date: May 20, 2004Inventors: Richard D. Rebo, Victor J. Griswold
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Patent number: 5943675Abstract: A communication-efficient change log historian allows workstations having images of a shared memory to remain correlated to the shared memory. The system comprises one or more workstations connected to a microprocessor-based device which includes a memory device. The memory device includes the shared memory, and also stores a memory change list and a memory change index. The memory change list forms a list of changes which have been made to the information stored in the shared memory area, and the change index is indicative of the location of the most recent entry to the memory change list. The workstations maintain an image of the shared memory area, and store workstation change indexes which are indicative of the most recent entry to the memory change list which has also been implemented to respective images of the shared memory area in the workstations.Type: GrantFiled: September 25, 1996Date of Patent: August 24, 1999Assignee: Allen-Bradley Company, LLCInventors: Michael J. Keith, Mohammad S. Khan, Victor J. Griswold, David A. Johnston