Patents by Inventor John O'Sullivan
John O'Sullivan 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).
-
Publication number: 20080263138Abstract: An innovative system and method for laboratories, hospitals and others to manage stored specimens is described and claimed. One problem commonly encountered by medical researchers is the inability to effectively and efficiently track the large number of specimens generated in the course of their research. In an environment comprised of multiple researchers—each working on varied projects and often needing to interact—it is necessary to employ a centralized, fast and efficient way to track the location of stored samples and to identify changes or removed samples. A Method and System for Managing Specimen Data (or “VSM”) is a web-based software application designed to efficiently manage specimen samples. Examples of the VSM include the VSM software application and a database—each residing on a remote server—that displays web pages accessible by registered and logged in users through a standard web browser via a secure internet or intranet connection found on a client computer.Type: ApplicationFiled: October 9, 2007Publication date: October 23, 2008Inventors: Royce C. Heslep, James John O'Sullivan
-
Publication number: 20080039119Abstract: A method and an apparatus for radiolocation using time differences of arrival. The method includes receiving transmit timestamps from a set of wireless stations of a wireless network. Each station transmits at least once. The transmit timestamp uses a local timestamping clock to indicate when a station transmitted a packet. The method further includes receiving sets of timestamped captured samples from each station that receives one of the transmitted packets. The times of arrival of each packet at each station are determined from the received sets of timestamped captured samples, and, the relative positions of the stations are determined from the determined times of arrival and the received transmit timestamps. The transmitting by the stations is in a round robin manner one station after the other, and several round robins may be used to mutually calibrate local clocks. Also an apparatus for inclusion in a station of a wireless network.Type: ApplicationFiled: October 18, 2007Publication date: February 14, 2008Inventors: Jason Crawford, John O'Sullivan, Brian Hart
-
Patent number: 7315281Abstract: A method of determining a geographical location of an asset tracking device, includes searching, by the asset tracking device, for available location determination schemes at the geographical location, selecting one of the available location determination schemes, and determining coordinates of the geographical location using the selected location determination scheme. Some embodiments also include making a decision based, at least in part, upon the geographical location coordinates determined by using the selected location determination scheme. Some embodiments include transmitting a location message, the location message including the coordinates of the geographical location and an indication as to the selected location determination scheme.Type: GrantFiled: July 30, 2005Date of Patent: January 1, 2008Assignee: G2 Microsystems Pty. Ltd.Inventors: Thomas Dejanovic, John S. Gloekler, Geoffrey J. Smith, Philip J. Ryan, John O'Sullivan
-
Patent number: 7212122Abstract: Devices, such as tracking devices, cooperate with one another to establish the routing necessary for a relay network in which a device having power-efficient and data-reliable communication with an access portal, operates to relay messages from devices which do not have an acceptable communication path to and/or from the access portal. In one aspect of the present invention, a plurality of devices synchronously determine whether an acceptable communication path can be established between themselves and one or more access portals by measuring the signal strength of an access portal beacon. In another aspect of the present invention, one or more devices, which have determined that an acceptable communication path can be established between themselves and an access portal, transmit information regarding their availability to relay messages on behalf of devices which have determined that an acceptable communication path cannot be established between themselves and an access portal.Type: GrantFiled: December 29, 2004Date of Patent: May 1, 2007Assignee: G2 Microsystems Pty. Ltd.Inventors: John S. Gloekler, John O'Sullivan, Geoffrey J. Smith, Philip Ryan
-
Publication number: 20070092015Abstract: A method and apparatus for estimating channel characteristics in a multicarrier wireless receiver such as an OFDM wireless receiver. The method includes determining a channel estimate for each of a set of subcarriers by receiving multicarrier data as a result of a wireless transmission of data that includes a known signal, wherein the determining uses a part of the received data that corresponds to the known signal. The method further includes smoothing the channel estimates according to a smoothing filter to form smoothed channel estimates. The smoothed channel estimate for a particular subcarrier includes a contribution from the channel estimates of one or more subcarriers nearby the particular subcarrier take advantage of correlation that may exist between the particular subcarrier's channel and the channels of the one or more nearby subcarriers.Type: ApplicationFiled: December 1, 2006Publication date: April 26, 2007Inventors: Brian Hart, John O'Sullivan
-
Publication number: 20070066259Abstract: A digital AGC system for burst operation, particularly suited for receiving packets in a wireless local area network. One embodiment includes a log detector that provides a signal strength measure, called the received signal strength indication (RSSI) over a wide dynamic range. The AGC system includes estimating the power in a received signal by averaging the log of the signal power. The Start of Packet detection avoids using the radio receiver's main analog to digital converters to preserve power.Type: ApplicationFiled: November 8, 2006Publication date: March 22, 2007Inventors: Philip Ryan, Andrew Adams, John O'Sullivan, Uri Parker, Brian Hart, Grzegorz Zyner
-
Publication number: 20070049348Abstract: A wireless local area network system comprises a 5.0+ GHz radio transceiver with two receiving antennas and one transmitting antenna. A transmitter power amplifier output is connected to the transmitting antenna through a 6-8 pole filter to control spurious signal output. Each receiving antenna is fitted with its own low-noise amplifier followed by a simple bandpass filter. Each bandpass filter feeds a diversity switch with a single output to a single receiver. The radio system constitutes a physical-layer (PHY) part of a wireless local-area network.Type: ApplicationFiled: May 31, 2006Publication date: March 1, 2007Inventors: John O'Sullivan, Neil Weste
-
Publication number: 20070043982Abstract: An interleaver and interleaving method each includes two stages, and is useful in coded orthogonal frequency division multiplexed (COFDM) wireless local area networks. A first stage performs a first block permutation and a second stage performs bit order permutation to effectuate a second group permutation. A corresponding de-interleaver does just the opposite at the receiver. A double-buffer version includes writing data into one memory block in a first order while reading data from the second block in a second order, with the first and second orders selected to effectuate the first block permutation.Type: ApplicationFiled: September 6, 2006Publication date: February 22, 2007Inventors: Thangadurai Arivoli, John O'Sullivan
-
Patent number: 7164651Abstract: A wireless computer data network includes several untethered mobile units that make ad-hoc data connections with an Internet-connected base station using the IEEE-802.11a standard. Each unit includes a radio transceiver fully integrated on a single semiconductor chip. The receiver portion is a double-conversion superheterodyne type, and shares the same intermediate and local oscillator frequencies with a two-stage up-conversion transmitter. Two on-chip synthesizers that each include a voltage-controlled oscillator and phase-locked loop can be operated independently for each conversion stage, or operated in offset mode. External reference frequencies can be injected for voltage-controlled oscillator and phase-locked loop testing, chip characterization, and automatic compensation modeling. Each mobile and base unit can be outfitted with transmit/receive antenna transfer switches, RF-power amplifiers, and low-noise receiver amplifiers to increase operating range.Type: GrantFiled: April 25, 2006Date of Patent: January 16, 2007Assignee: Cisco Systems Wireless Networking (Australia) Pty LimitedInventors: Neil Weste, Andrew Adams, Philip Ryan, John O'Sullivan, David J. Skellern, Richard Keaney
-
Publication number: 20070004245Abstract: A test assembly for testing electrical performance of microcircuits contained in leadless packages has Kelvin contacts. Slider contacts in a plurality of contact assemblies slide compliantly to accommodate lack of coplanarity in terminals on the package. A resilient elastomeric block may be inserted through interior spaces of the contact assembly and in interfering relation with features of a housing that supports and aligns the contact assemblies, to apply force to the slider contacts to force them against the microcircuit terminals.Type: ApplicationFiled: June 8, 2006Publication date: January 4, 2007Inventors: John O' Sullivan, John Nelson
-
Patent number: 7110381Abstract: A wireless local area network system comprises a 5.0+ GHz radio transceiver with two receiving antennas and one transmitting antenna. A transmitter power amplifier output is connected to the transmitting antenna through a 6–8 pole filter to control spurious signal output. Each receiving antenna is fitted with its own low-noise amplifier followed by a simple bandpass filter. Each bandpass filter feeds a diversity switch with a single output to a single receiver. The radio system constitutes a physical-layer (PHY) part of a wireless local-area network.Type: GrantFiled: September 14, 2001Date of Patent: September 19, 2006Assignee: Cisco Systems Wireless Networking (Australia) Pty LimitedInventors: John O'Sullivan, Neil Weste
-
Publication number: 20060194614Abstract: A wireless computer data network includes several untethered mobile units that make ad-hoc data connections with an Internet-connected base station using the IEEE-802.11a standard. Each unit includes a radio transceiver fully integrated on a single semiconductor chip. The receiver portion is a double-conversion superheterodyne type, and shares the same intermediate and local oscillator frequencies with a two-stage up-conversion transmitter. Two on-chip synthesizers that each include a voltage-controlled oscillator and phase-locked loop can be operated independently for each conversion stage, or operated in offset mode. External reference frequencies can be injected for voltage-controlled oscillator and phase-locked loop testing, chip characterization, and automatic compensation modeling. Each mobile and base unit can be outfitted with transmit/receive antenna transfer switches, RF-power amplifiers, and low-noise receiver amplifiers to increase operating range.Type: ApplicationFiled: April 25, 2006Publication date: August 31, 2006Inventors: Neil Weste, Andrew Adams, Philip Ryan, John O'Sullivan, David Skellern, Richard Keaney
-
Publication number: 20060193277Abstract: An apparatus, a carrier medium storing instructions to implement a method, and a method in a node of a wireless network able to receive packets that exactly or substantially conform to a wireless network standard according to which each packet includes a header having bits that have respective correct values in the case that the packet exactly conforms to the standard. The method includes receiving a start-of-packet (SOP) trigger that indicates that a packet may have been received, checking one or more bits in the header to determine whether or not they have their respective correct values, and continuing to process the packet in the case that the checking indicates that the checked bits have their respective correct values. In one implementation, the header includes a first field modulated at a known rate that has one or more reserved bit locations, and a second field modulated at a data rate indicated in the first field.Type: ApplicationFiled: April 25, 2006Publication date: August 31, 2006Inventors: Richard Keaney, John O'Sullivan, Brian Hart, Philip Ryan, Kurt Lumbatis, Kevin Wong
-
Publication number: 20060125694Abstract: A method of determining a geographical location of an asset tracking device, includes searching, by the asset tracking device, for available location determination schemes at the geographical location, selecting one of the available location determination schemes, and determining coordinates of the geographical location using the selected location determination scheme. Some embodiments also include making a decision based, at least in part, upon the geographical location coordinates determined by using the selected location determination scheme. Some embodiments include transmitting a location message, the location message including the coordinates of the geographical location and an indication as to the selected location determination scheme.Type: ApplicationFiled: July 30, 2005Publication date: June 15, 2006Inventors: Thomas Dejanovic, John Gloekler, Geoffrey Smith, Philip Ryan, John O'Sullivan
-
Patent number: 7061855Abstract: A wireless computer data network includes several untethered mobile units that make ad-hoc data connections with an Internet-connected base station using the IEEE-802.11a standard. Each unit includes a radio transceiver fully integrated on a single semiconductor chip. The receiver portion is a double-conversion superheterodyne type, and shares the same intermediate and local oscillator frequencies with a two-stage up-conversion transmitter. Two on-chip synthesizers that each include a voltage-controlled oscillator and phase-locked loop can be operated independently for each conversion stage, or operated in offset mode. External reference frequencies can be injected for voltage-controlled oscillator and phase-locked loop testing, chip characterization, and automatic compensation modeling. Each mobile and base unit can be outfitted with transmit/receive antenna transfer switches, RF-power amplifiers, and low-noise receiver amplifiers to increase operating range.Type: GrantFiled: June 27, 2005Date of Patent: June 13, 2006Assignee: Cisco Systems Wireless Networking (Australia) Pty LimitedInventors: Neil Weste, Andrew Adams, Philip Ryan, John O'Sullivan, David J. Skellern, Richard Keaney
-
Publication number: 20050247775Abstract: Devices, such as tracking devices, cooperate with one another to establish the routing necessary for a relay network in which a device having power-efficient and data-reliable communication with an access portal, operates to relay messages from devices which do not have an acceptable communication path to and/or from the access portal. In one aspect of the present invention, a plurality of devices synchronously determine whether an acceptable communication path can be established between themselves an one or more access portals by measuring the signal strength of an access portal beacon. In another aspect of the present invention, one or more devices, which have determined that an acceptable communication path can be established between themselves and an access portal, transmit information regarding their availability to relay messages on behalf of devices which have determined than an acceptable communication path cannot be established between themselves and an access portal.Type: ApplicationFiled: December 29, 2004Publication date: November 10, 2005Inventors: John Gloekler, John O'Sullivan, Geoffrey Smith, Philip Ryan
-
Publication number: 20050237924Abstract: A wireless computer data network includes several untethered mobile units that make ad-hoc data connections with an Internet-connected base station using the IEEE-802.11a standard. Each unit includes a radio transceiver fully integrated on a single semiconductor chip. The receiver portion is a double-conversion superheterodyne type, and shares the same intermediate and local oscillator frequencies with a two-stage up-conversion transmitter. Two on-chip synthesizers that each include a voltage-controlled oscillator and phase-locked loop can be operated independently for each conversion stage, or operated in offset mode. External reference frequencies can be injected for voltage-controlled oscillator and phase-locked loop testing, chip characterization, and automatic compensation modeling. Each mobile and base unit can be outfitted with transmit/receive antenna transfer switches, RF-power amplifiers, and low-noise receiver amplifiers to increase operating range.Type: ApplicationFiled: June 27, 2005Publication date: October 27, 2005Inventors: Neil Weste, Andrew Adams, Philip Ryan, John O'Sullivan, David Skellern, Richard Keaney
-
Publication number: 20050227512Abstract: A test assembly for testing electrical performance of microcircuits contained in leadless packages has Kelvin contacts. Slider contacts in a plurality of contact assemblies slide compliantly to accommodate lack of coplanarity in terminals on the package. A resilient elastomeric block may be inserted through interior spaces of the contact assembly and in interfering relation with features of a housing that supports and aligns the contact assemblies, to apply force to the slider contacts to force them against the microcircuit terminals.Type: ApplicationFiled: March 21, 2005Publication date: October 13, 2005Inventors: John O'Sullivan, John Nelson
-
Patent number: 6944121Abstract: A wireless computer data network includes several untethered mobile units that make ad-hoc data connections with an Internet-connected base station using the IEEE-802.11a standard. Each unit includes a radio transceiver fully integrated on a single semiconductor chip. The receiver portion is a double-conversion superheterodyne type, and shares the same intermediate and local oscillator frequencies with a two-stage up-conversion transmitter. Two on-chip synthesizers that each include a voltage-controlled oscillator and phase-locked loop can be operated independently for each conversion stage, or operated in offset mode. External reference frequencies can be injected for voltage-controlled oscillator and phase-locked loop testing, chip characterization, and automatic compensation modeling. Each mobile and base unit can be outfitted with transmit/receive antenna transfer switches, RF-power amplifiers, and low-noise receiver amplifiers to increase operating range.Type: GrantFiled: June 8, 2001Date of Patent: September 13, 2005Assignee: Cisco Systems Wireless Networking (Australia) Pty LimitedInventors: Neil Weste, Andrew Adams, Philip Ryan, John O'Sullivan, David J. Skellern, Richard Keaney
-
Publication number: 20050159011Abstract: By providing a silicon containing precursor, such as methyl triethoxysilane, to a phosphoric etch bath, wafers containing nitride may be selectively etched without unduly impacting other silicon containing underlying layers.Type: ApplicationFiled: January 21, 2004Publication date: July 21, 2005Inventors: Vani Thirumala, Nabil Mistkawi, Bruce Beattie, John O'Sullivan, Huiying Liu, Noriko Oshiro, Hokkin Choi, Loretta Cordrey