Patents by Inventor Roland Smith
Roland Smith 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: 20120314789Abstract: A communications system includes a multiple-input/multiple-output (MIMO) architecture for high capacity switched mesh networks. The MIMO architecture has a plurality of radio frequency chains. One of the plurality of radio frequency chains is configured to apply a first frequency offset to a base frequency of an output signal to generate a first transmitting frequency; and another of the plurality of radio frequency chains being configured to apply a second frequency offset to the base frequency to generate a second transmitting frequency. The system uses the carrier frequency offset to lock the clock of the master subsystem to the clock of the slave subsystem, thereby enabling bandwidth expansion to be employed on the MIMO data streams.Type: ApplicationFiled: August 27, 2012Publication date: December 13, 2012Applicant: BelAir NetworksInventors: Colin H. Soul, Roland A. Smith, Stephen G. Rayment
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Patent number: 8315572Abstract: Methods and devices related to wireless networking. A wireless device has multiple directional antennas and multiple backhaul radio modules which provide point to point wireless links with other wireless devices. Each radio module can use any one of the available directional antennas to link to one other routing device. Antennas are automatically selected for each wireless device by merely setting one device in a “hunt” mode and setting another device in a “listen” mode. Devices in a hunt mode cycle through the available antennas by sequentially transmitting transmit messages to devices in the listen mode using each of the available antennas in turn. Devices in the listen mode also cycle through their available antennas by sequentially “listening” for transmit messages. A listen mode device, receives transmit messages on each of its available antennas, and, after gathering the relevant data, determines which of its antennas is best suited for communicating with the hunt mode device.Type: GrantFiled: December 22, 2009Date of Patent: November 20, 2012Assignee: BelAir Networks Inc.Inventors: Bernard Herscovich, Stephen G. Rayment, Roland A. Smith
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Patent number: 8290440Abstract: A high performance wireless mesh architecture which has been optimized for mobile end points is described. The mesh architecture is intended for Navy applications, where the wireless mesh network extends between mobile ships and includes ship-to-shore links, but it is equally applicable to other mobile elements on, in, or under land, air, sea, or space.Type: GrantFiled: July 1, 2009Date of Patent: October 16, 2012Assignee: BelAir Networks Inc.Inventors: Chris Williams, Eric Johnson, Dave Park, Marcel Chenier, Stephen Rayment, Roland A. Smith
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Publication number: 20120236786Abstract: A high performance wireless mesh architecture which has been optimized for mobile end points is described. The mesh architecture is intended for Navy applications, where the wireless mesh network extends between mobile ships and includes ship-to-shore links, but it is equally applicable to other mobile elements on, in, or under land, air, sea, or space.Type: ApplicationFiled: July 1, 2009Publication date: September 20, 2012Applicant: BelAir Networks Inc.Inventors: Chris Williams, Eric Johnson, Dave Park, Marcel Chenier, Stephen Rayment, Roland A. Smith
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Patent number: 8254865Abstract: A communications system includes a multiple-input/multiple-output (MIMO) architecture for high capacity switched mesh networks. The MIMO architecture has a plurality of radio frequency chains. One of the plurality of radio frequency chains is configured to apply a first frequency offset to a base frequency of an output signal to generate a first transmitting frequency; and another of the plurality of radio frequency chains being configured to apply a second frequency offset to the base frequency to generate a second transmitting frequency. The system uses the carrier frequency offset to lock the clock of the master subsystem to the clock of the slave subsystem, thereby enabling bandwidth expansion to be employed on the MIMO data streams.Type: GrantFiled: February 20, 2009Date of Patent: August 28, 2012Assignee: BelAir NetworksInventors: Colin H. Soul, Roland A. Smith, Stephen G. Rayment
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Publication number: 20120170514Abstract: Protocols and algorithms for contention-based adaptive modulation networks, typically used in unlicensed bands. A wireless system in which high modulation rate packets are prioritized over low rate packets. The wireless system is configured to process communication signals from plural user portable devices having wireless access points capable of dynamically adjusting access point transmit power on a user-by-user basis to a minimum level required to achieve a target signal-to-noise ratio from each user portable device irrespective of the interference observed on the link is also disclosed. The wireless system is also capable of dynamically adjusting access point transmitter power and receiver sensitivity on a user-by-user basis to a minimum level required to achieve the highest possible modulation rate.Type: ApplicationFiled: December 30, 2010Publication date: July 5, 2012Applicant: BELAIR NETWORKSInventors: Waichi Lo, Roland Smith, Chris Williams, Stephen Rayment, Michael Russell
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Publication number: 20120163201Abstract: Described herein are a number of steps, methods and/or solutions that can be applied to greatly improve attenuation control of RF signals in cable plant. The present disclosure is directed to a cable modem auto-attenuation system or any other signal transferring system. The system may be capable of taking a high-power signal from the cable plant's service line, dropping the power value down to a usable level and transmitting the signal to a cable modem while eliminating the need for rigorous manual adjustments that a normal cable modem often requires. In certain embodiments, the system may be integrated into a separate device connected between the modem and the cable company service line and configured to handle upstream and downstream attenuation separately or jointly.Type: ApplicationFiled: December 27, 2010Publication date: June 28, 2012Applicant: BELAIR NETWORKSInventors: Chris Williams, Roland Smith, Jarek Zaniewski, Marcel Chenier, Stephen Rayment
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Patent number: 8194544Abstract: A distributed or centralized network backhaul delay system includes a plurality of cellular base transceiver stations. Each cellular base transceiver station includes a network backhaul delay element. The network backhaul delay element is configured to calculate delay information associated with network delays between cell sites. The network backhaul delay element is configured to adjust and shape the relative network delays to minimize network delays between cell sites to enable soft handoff to be performed.Type: GrantFiled: November 12, 2007Date of Patent: June 5, 2012Assignee: BelAir Networks Inc.Inventors: Roland A. Smith, Chris Williams, Stephen Rayment
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Publication number: 20110077036Abstract: A fringe-effect vault antenna includes a communications vault having a non-conductive cover disposed substantially at ground level. An antenna element is positioned in the communications vault. A metallic reflector has an edge, positioned substantially parallel to the ground, where the metallic reflector and the edge are configured to cause an edge diffraction, or “fringe-effect” upon the RF fields of the antenna to cause those RF fields to diffract in a direction toward the ground.Type: ApplicationFiled: August 27, 2010Publication date: March 31, 2011Inventors: Peter Frank, Roland A. Smith, Dave Pell, Stephen Rayment
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Publication number: 20100278140Abstract: A distributed or centralized network backhaul delay system includes a plurality of cellular base transceiver stations. Each cellular base transceiver station includes a network backhaul delay element. The network backhaul delay element is configured to calculate delay information associated with network delays between cell sites. The network backhaul delay element is configured to adjust and shape the relative network delays to minimize network delays between cell sites to enable soft handoff to be performed.Type: ApplicationFiled: November 12, 2007Publication date: November 4, 2010Applicant: BelAir Networks Inc.Inventors: Roland A. Smith, Chris Williams, Stephen Rayment
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Patent number: 7821958Abstract: A system and method is provided for estimating the T1 timing error and clock recovery errors by processing timing information from the associated pseudowire packet stream(s) from which the T1 is derived. The timing errors are presented as MTIE measurements which are used to present alarms for a Network Operation Control centre and are used to accurately alarm error conditions where the regenerated or derived T1 signal does not meet MTIE or clock accuracy errors. This alarm is intended to detect conditions of excessive packet jitter, wander or phase transients which may exist in the data network over which the pseudowire stream is transported. In another aspect, the errors are used to control the regeneration of the T1 clock information.Type: GrantFiled: December 21, 2007Date of Patent: October 26, 2010Assignee: BelAir Networks Inc.Inventors: Roland A. Smith, Stephen Rayment, Richard Sommerville, Chris Williams, Sam Onsy
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Publication number: 20100159971Abstract: Methods and devices related to wireless networking. A wireless device has multiple directional antennas and multiple backhaul radio modules which provide point to point wireless links with other wireless devices. Each radio module can use any one of the available directional antennas to link to one other routing device. Antennas are automatically selected for each wireless device by merely setting one device in a “hunt” mode and setting another device in a “listen” mode. Devices in a hunt mode cycle through the available antennas by sequentially transmitting transmit messages to devices in the listen mode using each of the available antennas in turn. Devices in the listen mode also cycle through their available antennas by sequentially “listening” for transmit messages. A listen mode device, receives transmit messages on each of its available antennas, and, after gathering the relevant data, determines which of its antennas is best suited for communicating with the hunt mode device.Type: ApplicationFiled: December 22, 2009Publication date: June 24, 2010Inventors: Bernard Herscovich, Stephen G. Rayment, Roland A. Smith
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Patent number: 7660559Abstract: Methods and devices related to wireless networking. A wireless device has multiple directional antennas and multiple backhaul radio modules which provide point to point wireless links with other wireless devices. Each radio module can use any one of the available directional antennas to link to one other routing device. Antennas are automatically selected for each wireless device by merely setting one device in a “hunt” mode and setting another device in a “listen” mode. Devices in a hunt mode cycle through the available antennas by sequentially transmitting transmit messages to devices in the listen mode using each of the available antennas in turn. Devices in the listen mode also cycle through their available antennas by sequentially “listening” for transmit messages. A listen mode device, receives transmit messages on each of its available antennas, and, after gathering the relevant data, determines which of its antennas is best suited for communicating with the hunt mode device.Type: GrantFiled: December 11, 2006Date of Patent: February 9, 2010Assignee: Belair Networks Inc.Inventors: Bernard Herscovich, Stephen G. Rayment, Roland A. Smith
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Publication number: 20090180466Abstract: A communications system includes a multiple-input/multiple-output (MIMO) architecture for high capacity switched mesh networks. The MIMO architecture has a plurality of radio frequency chains. One of the plurality of radio frequency chains is configured to apply a first frequency offset to a base frequency of an output signal to generate a first transmitting frequency; and another of the plurality of radio frequency chains being configured to apply a second frequency offset to the base frequency to generate a second transmitting frequency. The system uses the carrier frequency offset to lock the clock of the master subsystem to the clock of the slave subsystem, thereby enabling bandwidth expansion to be employed on the MIMO data streams.Type: ApplicationFiled: February 20, 2009Publication date: July 16, 2009Applicant: BelAir NetworksInventors: Colin H. Soul, Roland A. Smith, Stephen G. Rayment
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Publication number: 20090161744Abstract: A system and method is provided for estimating the T1 timing error and clock recovery errors by processing timing information from the associated pseudowire packet stream(s) from which the Ti is derived. The timing errors are presented as MTIE measurements which are used to present alarms for a Network Operation Control centre and are used to accurately alarm error conditions where the regenerated or derived T1 signal does not meet MTIE or clock accuracy errors. This alarm is intended to detect conditions of excessive packet jitter, wander or phase transients which may exist in the data network over which the pseudowire stream is transported. In another aspect, the errors are used to control the regeneration of the T1 clock information.Type: ApplicationFiled: December 21, 2007Publication date: June 25, 2009Applicant: Belair Networks Inc.Inventors: Roland A. SMITH, Stephen RAYMENT, Richard SOMMERVILLE, Chris WILLIAMS, Sam ONSY
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Publication number: 20090117859Abstract: A communications system includes a multiple-input/multiple-output architecture, which has a plurality of radio frequency chains. One of the plurality of radio frequency chains is configured to apply a first frequency offset to a base frequency of an output signal to generate a first transmitting frequency; and another of the plurality of radio frequency chains being configured to apply a second frequency offset to the base frequency to generate a second transmitting frequency.Type: ApplicationFiled: November 20, 2008Publication date: May 7, 2009Applicant: BelAir Networks Inc.Inventors: Roland A. Smith, Chris Williams, Stephen Rayment, Andrew Keir
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Patent number: 7260102Abstract: A method and system for conveying an arbitrary mixture of high and low latency traffic streams across a common switch fabric implements a multi-dimensional traffic classification scheme, in which multiple orthogonal traffic classification methods are successively implemented for each traffic stream traversing the system. At least two diverse paths are mapped through the switch fabric, each path being optimized to satisfy respective different latency requirements. A latency classifier is adapted to route each traffic stream to a selected path optimized to satisfy latency requirements most closely matching a respective latency requirement of the traffic stream. A prioritization classifier independently prioritizes traffic streams in each path. A fairness classifier at an egress of each path can be used to enforce fairness between responsive and non-responsive traffic streams in each path.Type: GrantFiled: February 22, 2002Date of Patent: August 21, 2007Assignee: Nortel Networks LimitedInventors: Hamid R. Mehrvar, Roland A. Smith, Xiaoming Fan, Mark Wight
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Publication number: 20070189164Abstract: A system and method for managing information communication in a network includes a plurality of network nodes. A plurality of circuit emulation data flows are established between a first network node and at least a second network node. Different data transmission rates are assigned to each circuit emulation data flow such that the frequency of communicated packets is different at least for each circuit emulation data flow used for timing recovery to make the plurality of circuit emulation data flows substantially independent of each other. For example, different frame rates can be assigned to synchronous backhaul transmission links such that the frequency of the backhaul transmission rates is substantially independent of the circuit emulation flow rates.Type: ApplicationFiled: February 12, 2007Publication date: August 16, 2007Applicant: Belair Networks Inc.Inventors: Roland A. Smith, Richard Sommerville, Ryan Greer, Van Sreng, Stephen Rayment
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Patent number: 7257117Abstract: A synchronizer/de-synchronizer maps continuous format signals of an arbitrary rate into frames of pre-selected single common rate, such as SONET frames, with no bits changed and very little jitter or wander added. In this way, the continuous format signal may be carried transparently as a tributary of a SONET network. Each frame comprises a definite number of fixed stuff bits, including transport overhead bits and reminder fixed stuff bits. A frame also comprises an adjustable number of adaptive stuff bits, resulting from the phase difference between the arbitrary rate and the common rate. A mapping function is performed in a tributary unit shelf of a SONET transport shelf, and the reverse mapping function is performed in a similar way at the far end of a SONET connection. The stuff bits are spread uniformly within the frame.Type: GrantFiled: April 18, 2002Date of Patent: August 14, 2007Assignee: Nortel Networks LimitedInventors: Kim B. Roberts, Ronald J. Gagnon, Paul A. Smeulders, Manoj Verghese, Roland A. Smith, Nazib A. Moledina
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Publication number: 20070087788Abstract: Methods and devices related to wireless networking. A wireless device has multiple directional antennas and multiple backhaul radio modules which provide point to point wireless links with other wireless devices. Each radio module can use any one of the available directional antennas to link to one other routing device. Antennas are automatically selected for each wireless device by merely setting one device in a “hunt” mode and setting another device in a “listen” mode. Devices in a hunt mode cycle through the available antennas by sequentially transmitting transmit messages to devices in the listen mode using each of the available antennas in turn. Devices in the listen mode also cycle through their available antennas by sequentially “listening” for transmit messages. A listen mode device, receives transmit messages on each of its available antennas, and, after gathering the relevant data, determines which of its antennas is best suited for communicating with the hunt mode device.Type: ApplicationFiled: December 11, 2006Publication date: April 19, 2007Inventors: Bernard Herscovich, Stephen Rayment, Roland Smith