Patents Represented by Attorney Tucker Ellis LLP
  • Patent number: 8325696
    Abstract: In an example embodiment described herein is an apparatus comprising a wireless transceiver and channel selection logic coupled to the wireless transceiver and operable to select an operating frequency for the wireless transceiver. The channel selection logic is configured to reserve a dedicated channel having a special identifier. The channel selection logic is configured to have the wireless transceiver advertise the dedicated service on a normal operating frequency. The channel selection logic is responsive to receiving a request from a wireless device via the wireless transceiver on the normal operating frequency to use the dedicated channel to switch to the dedicated channel and establish communications with the wireless device on the dedicated channel.
    Type: Grant
    Filed: July 29, 2009
    Date of Patent: December 4, 2012
    Assignee: Cisco Technology, Inc.
    Inventors: Neil Robert Diener, Abhijit Kumar Choudhury, Brian Donald Hart, David S. Stephenson
  • Patent number: 8325914
    Abstract: Described herein in an example embodiment, is a mechanism to distribute and implement secure credentials on a WLAN (wireless local area network) employing radio frequency identification (RFID) tags. Symmetric keys are provisioned to the tag in a manner that allows for optimized re-association and secure announcements. The provisioned keys are derived in a way that enables the controller to operate without having to maintain the key state for every tag. In an example embodiment, the controller generates keys for the RFID tags that are derived from a master key associated with the controller, an identifier assigned to the RFID tag and an address associated with the RFID tag.
    Type: Grant
    Filed: November 27, 2007
    Date of Patent: December 4, 2012
    Assignee: Cisco Technology, Inc.
    Inventors: Joseph Salowey, Allan Thomson
  • Patent number: 8325906
    Abstract: Communication systems and methods are described that include class-based call request routing. Components of the communication systems are configured to receive information of a class at a calling device. In response to the class information, a call request is automatically generated and addressed to resources of a class group. The resources of the class group all possess a common attribute of the class. The attribute includes one or more of a skill, job specialty code, job title, company, department, and division. The generated call request is routed to target devices of the resources. In response to a resource accepting the call request, a response message is received from a target device of the resource. Communications are established between the calling device and the at least one target device in response to the response message received from the target device.
    Type: Grant
    Filed: January 25, 2007
    Date of Patent: December 4, 2012
    Assignee: Cisco Technology, Inc.
    Inventors: Paul Fullarton, Tom Lichtenberg, Michael Rothrock, Steven D. Schramm, Ankur Shah
  • Patent number: 8309151
    Abstract: Deep fryers and associated accessories providing increased efficiency and convenience in the production of deep-fried, steamed and boiled foods. Multiple cooking cycles and versatile food support means to fully cook foods are provided. Special advantages for larger unitary foods, such as for example, a large turkey, are provided. Advantages include without limitation minimizing countertop usage; reduction in the use of frying oil; compact storage; reduced shipping costs; reduced warehousing and manufacturing costs; and being lighter and more easy to handle in the kitchen. Accessory items simplify and facilitate production of deep fried foods, including cutting foods into shapes appropriate to produce French fries and blooming onions. Other accessories facilitate the transference and maintenance of frying oil including: returning frying oil to original containers for storage and disposal; and filtering frying oil to prolong its useful life.
    Type: Grant
    Filed: August 13, 2010
    Date of Patent: November 13, 2012
    Assignee: Ron's Enterprises, Inc.
    Inventors: Ronald M. Popeil, Alan L. Backus
  • Patent number: 8305971
    Abstract: In an example embodiment, an apparatus selects radio channels based on persistent interference device information. The apparatus comprises a wireless transceiver operable to communicate over a plurality of channels and channel selection logic in communication with the wireless transceiver and operable to select a channel for the wireless transceiver. The channel selection logic is operable to acquire data representative of intensity, duration and rate of occurrence for at least one persistent interference device detected by the wireless transceiver operating on at least one of the plurality of channels. The channel selection logic is operable to select a channel for the wireless transceiver based on the data representative of intensity, duration and rate of occurrence for the at least one persistent interference device.
    Type: Grant
    Filed: January 13, 2009
    Date of Patent: November 6, 2012
    Assignee: Cisco Technology, Inc.
    Inventors: Igal Gutkin, Saurabh Bhasin, Neil Robert Diener, Sandeep Jay Shetty
  • Patent number: 8305896
    Abstract: In an example embodiment, a method for selective performance enhancement of traffic flows, such as a Transmission Control Protocol (TCP) flow, on devices where enhancement of a limited number of concurrent flows is supported, or where a limited number of TCP accelerated or IP (Internet Protocol) compressed flows are supported. Flows are selected to be enhanced, accelerated or compressed based on configured priorities, including but not limited to type of the flow, importance of the flow, and availability of resources to enhance, accelerate or compress the flow. For example, a high-priority TCP session is accelerated for the lifetime of the session, while a low-priority TCP session is accelerated while there are available resources for the low-priority flow.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: November 6, 2012
    Assignee: Cisco Technology, Inc.
    Inventors: Lloyd Harvey Wood, Kenneth Durazzo, Yu-Cheng Shao, Daniel John Floreani
  • Patent number: 8306027
    Abstract: A method for multicast load balancing in a wireless network having a plurality of access points. The method includes setting a maximum Internet protocol multicast bandwidth for the access points, receiving an admissions control request from a client at one of the access points, and determining whether the admissions control request from the client is for an admitted or unadmitted multicast stream at the access point. The access point is responsive to the admissions control request for the admitted multicast stream by servicing the admitted multicast stream and to the admissions control request for the unadmitted multicast stream by servicing the unadmitted multicast stream where the bandwidth required for the unadmitted multicast stream, plus that portion of the access point bandwidth currently used for all existing downlink multicast streams, does not exceed the maximum internet protocol multicast bandwidth for the access point.
    Type: Grant
    Filed: February 22, 2008
    Date of Patent: November 6, 2012
    Assignee: Cisco Technology, Inc.
    Inventors: Robert C. Meier, Stuart Norman, Douglas A. Smith, Nancy Cam Winget
  • Patent number: 8299914
    Abstract: In a method of asset location data is received from a cellular transmitter associated with a selected asset, which location data includes data representative of a cellular receiver with which direct communication with the cellular transmitter is made. The location data is communicated to a tracking service system, which tracking service system includes a database representative of geographic locations associated with a plurality of cellular receivers. The database is queried with received location data so as to generate geographic tracking data associated with a location of the cellular receiver, the geographic tracking data including display data adapted to generate a map image including data representative of a location of the selected asset. The geographic tracking data is communicated to an associated security agency for viewing of an image generated in accordance with the display data and at least one of tracking and interception of the selected asset.
    Type: Grant
    Filed: October 31, 2011
    Date of Patent: October 30, 2012
    Assignee: Spectrum Tracking Systems, Inc.
    Inventors: Jerry W. Culpepper, Lawrence M. Smith, James P. VanCleave
  • Patent number: 8300509
    Abstract: A movement device of a recording determination apparatus moves a pickup in a radial direction of an optical disc. The pickup irradiates laser light to the optical disc to output an electric signal, based on reflected light from a laser spot. A control device acquires address information relating to an arrangement position of the laser spot, based on the electric signal. The control device controls the movement device to move the laser spot from a data area to a recordable area. The control device determines whether or not data is recorded in the recordable area, based on the electric signal until a reference time has elapsed from a border potion between the data area and the recordable area, the border portion being specified based on the address information.
    Type: Grant
    Filed: February 11, 2011
    Date of Patent: October 30, 2012
    Assignee: Onkyo Corporation
    Inventor: Kazunari Ito
  • Patent number: 8295219
    Abstract: A system including a wireless transceiver receives multi-destination packets. The received multi-destination packets are sent either as multicast packets, replicated and sent as unicast packets to each member of a multicast group or both. Control logic of the system determines whether to send the received multi-destination packets as multicast packets or as replicated unicast packets based on which technique achieves higher throughput and/or lower latency.
    Type: Grant
    Filed: January 2, 2008
    Date of Patent: October 23, 2012
    Assignee: Cisco Technology, Inc.
    Inventor: Billy Gayle Moon
  • Patent number: 8295277
    Abstract: In an example embodiment described herein, there is disclosed an implementation for analyzing a network having cache advance (CA) segments, such as a session control protocol (SCTP) pipe. The path between endpoints, e.g. a client on a first local area network (LAN) and a server on a second LAN, wherein the first and second LAN are coupled by an SCTP pipe, is determined and properties of the path are acquired.
    Type: Grant
    Filed: June 29, 2007
    Date of Patent: October 23, 2012
    Assignee: Cisco Technology, Inc.
    Inventors: Sravan Vadlakonda, Rohini Kasturi, Alpesh S. Patel
  • Patent number: 8284751
    Abstract: The invention relates to a communications system for airport signalling devices. In said system, the series or parallel circuits used for supplying electricity to the signalling devices are used for the communication between a control device, a central communication device and signalling devices. The OFDM method is preferably used to transmit signals and decentralised communications devices, which are assigned to the signalling devices and preferably have elements for preparing the signals, are dynamically configured in an adaptive manner during the active operation of the system by a central communication device.
    Type: Grant
    Filed: July 17, 2003
    Date of Patent: October 9, 2012
    Assignee: ADB BVBA
    Inventor: Klaus Kock
  • Patent number: 8280052
    Abstract: In one embodiment, a signal transmission authentication apparatus includes an input operable to receive a changing signal, a first extractor operable to extract first phoneme data from the received changing signal, a first generator including logic operable to generate first data representative of the extracted first phoneme data, a first output operable to communicate output data corresponding to the received changing signal and the first data from an associated transmitter to an associated receiver, a second extractor associated with the receiver including logic operable to extract second phoneme data from the received output data via the receiver and regenerate the first phoneme data from the received first data, a comparator including logic operable to generate a comparison signal in accordance with a comparison of the first and second phoneme data, and a second output operable to generate a signal corresponding to authenticity of the received changing signal in accordance with an output of the comparator
    Type: Grant
    Filed: January 13, 2009
    Date of Patent: October 2, 2012
    Assignee: Cisco Technology, Inc.
    Inventors: Chin-Ju Chen, Eric Heng Chih Lee, Matthew R. Kuhlke, Ethan Hugg, Michael A. Ramalho
  • Patent number: 8276010
    Abstract: In an example embodiment, a technique for network based power management for power consuming devices associated with a network. A power control strategy is communicated to network elements coupled to the network. The power control strategy is enforced by the network elements and the network elements report power consumption. Each network element enforces the power strategy relative to the set of power consuming devices operatively associated with the network element. Groups of subtended network elements can manage the power policy in a cluster power management mode or in a collaborative cluster management mode.
    Type: Grant
    Filed: February 12, 2009
    Date of Patent: September 25, 2012
    Assignee: Cisco Technology, Inc.
    Inventors: Krishna Kumar Vavilala, Sheausong Yang, Harish Ramamurthy Devanagondi
  • Patent number: 8270381
    Abstract: A Hybrid Coordination Function (HCF) implementation wherein an access point's existing (E)DCF transmit queues are augmented by at least one strict priority HCF transmit queue. The HCF queues are only used to schedule downlink data and CF-Poll transmissions are used for admitted downlink flows and for uplink flows. The 802.1D user priority value is used to select the HCF queue for an admitted flow. The strict priority HCF transmit queues are always serviced first, in priority order before any other (E)DCF transmit queue. The channel is considered busy to (E)DCF transmit queues while the strict priority queues are being serviced. An admissions control mechanism is used to control data flows and prevents the strict priority traffic from starving (E)DCF traffic. A single, simple AP scheduler is used for scheduling both polling times and station wakeup time.
    Type: Grant
    Filed: June 28, 2010
    Date of Patent: September 18, 2012
    Assignee: Cisco Technology, Inc.
    Inventor: Robert Meier
  • Patent number: 8270593
    Abstract: In an example embodiment, a system that appropriately routes calls to an agent at a contact center based on the agent's voice and/or hearing characteristics. The agent is selected by matching speech and hearing characteristics of a caller with the speech and hearing characteristics of an agent. In order to find the best match for the caller, the contact center determines if the caller is hearing impaired, and if so determines a suitable frequency range for the caller. If a match cannot be found, the agent's and/or caller's voice may be shifted in real time and adjusted to a frequency range that is best suited for the caller.
    Type: Grant
    Filed: October 1, 2007
    Date of Patent: September 18, 2012
    Assignee: Cisco Technology, Inc.
    Inventors: Labhesh Patel, Mukul Jain, Shmuel Shaffer, Sanjeev Kumar
  • Patent number: 8262286
    Abstract: A temperature sensor generates a digital output signal representative of the absolute temperature of the sensor. The sensor includes a first circuit configured to generate a complementary to absolute temperature (CTAT) voltage signal and a second circuit configured to generate a proportional to absolute temperature (PTAT) current signal. A comparator receives the CTAT and PTAT signals and generates a comparison signal based on a comparison between the signals. A converter circuit receives the comparison signal and generates a digital output signal based on the comparison signal. The digital output signal is representative of the temperature of the sensor.
    Type: Grant
    Filed: November 18, 2008
    Date of Patent: September 11, 2012
    Assignee: Toshiba America Electronic Components, Inc.
    Inventors: Luverne R. Peterson, James R. Welch
  • Patent number: 8257019
    Abstract: A wind energy systems includes a shroud for each turbine. The shroud is adapted to direct and accelerate wind towards the turbine. A strong adaptable support assembly is provided for securing turbines to a structure. An air glide yaw assembly facilitates rotational movement of the structure allowing the turbines to face oncoming wind. The turbine blades are optimized for use with a shroud.
    Type: Grant
    Filed: August 27, 2007
    Date of Patent: September 4, 2012
    Assignee: Green Energy Technologies, LLC
    Inventors: Mark L. Cironi, John W. Fedor
  • Patent number: 8254357
    Abstract: In an example embodiment, there is described herein a technique that provides network availability to wireless clients (e.g., wireless clients running mission critical applications such as voice applications or medical devices) when a portions of a network is unavailable, such as when performing an image upgrade. One or more access points are switched to a standalone mode of operation, for example an AP that can operate using HREAP (Hybrid Remote Edge Access Point) mode, for maintaining network availability while a portion of the network is unavailable.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: August 28, 2012
    Assignee: Cisco Technology, Inc.
    Inventors: Pradeep J. Bheda, Prasad Y. Chebrolu
  • Patent number: 8249049
    Abstract: In an example embodiment, a method for synchronizing clocks between a plurality of clocked devices where one of the plurality of clocked devices is not directly synchronized with another of the plurality of clocked devices. Clock offset and a clock drift between a first clock associated with a first device and a second clock associated with a second is directly determined based on signals exchanged between the first and second devices. Clock offset and clock drift between the second clock and a third clock associated with a third device is directly determined based on signals exchanged between the second and third devices. A clock offset and clock drift between the first clock and third clock is determined based on a difference between the clock offset and drift between the first and second clocks and the clock offset and drift between the second and third clocks.
    Type: Grant
    Filed: March 17, 2009
    Date of Patent: August 21, 2012
    Assignee: Cisco Technology, Inc.
    Inventors: Matthew Aaron Silverman, Paul Jeffrey Stager, Brian Donald Hart