Patents by Inventor James Paul Seymour

James Paul Seymour 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: 6574202
    Abstract: A method for interleaving information to be conveyed over a TDMA wireless communication system. A certain portion of information associated with a user is transmitted during one time slot and the remaining information for that user is intermingled with other information for that user and transmitted in a subsequent time slot.
    Type: Grant
    Filed: July 14, 1999
    Date of Patent: June 3, 2003
    Assignee: Lucent Technologies Inc.
    Inventors: Nageen Himayat, James Paul Seymour, Andrea M. Tonello
  • Patent number: 6535733
    Abstract: A measurement radio system uses a measurement radio to scan active channels of a base station and produce operating information for the traffic radios servicing the active channels. The measurement radio can produce operating information, such as signal strength, bit error rate (BER), frame error rate (FER) and signal to interference ratio (C/I), which is used to determine whether to change the manner in which the traffic radio is servicing the active channel. For example, if the measurement radio can switch between different sets of antennas, the measurement radio can scan an active voice/data channel using a different set of antennas than the traffic radio is using to service the active channel and determine operating information related to the signal received over the active channel using the different set of antennas. The traffic radio can use the operating information to determine whether to hand off the active channel to the different set of antennas.
    Type: Grant
    Filed: August 31, 1998
    Date of Patent: March 18, 2003
    Assignee: Lucent Technologies Inc.
    Inventors: Alex Matusevich, Myles Patrick Murphy, James Paul Seymour, Sheng-Jen Tsai, Chris Constantine Tsamutalis
  • Publication number: 20020164990
    Abstract: A wireless endpoint employs frequency hopping for communicating signals in a wireless communications system. Over a time period T, the wireless endpoint performs pseudo-random selection of a frequency from a hopping set of N frequencies such that over at least a portion of the time period T, the frequency selection is constrained to less than the N frequencies.
    Type: Application
    Filed: May 7, 2001
    Publication date: November 7, 2002
    Inventors: Krishna Balachandran, Joseph H. Kang, Kumud K. Sanwal, James Paul Seymour
  • Patent number: 6411613
    Abstract: A method for conveying information in a new format structure for a wireless communication system in which users convey information on a time slot basis. The new format structure is made compatible with the system's existing format by partitioning system time slots into subslots.
    Type: Grant
    Filed: August 12, 1998
    Date of Patent: June 25, 2002
    Assignee: Lucent Technologies Inc.
    Inventors: James Paul Seymour, Andrea M. Tonello
  • Patent number: 6067295
    Abstract: An efficient method and apparatus for reducing the effect of ghost signals during the recovery of information bits in wireless systems. The delay spread between each burst and its ghost are estimated so that an equalizer is only engaged to eliminate the effects of the ghost on data recovery when the delay spread increases beyond a given threshold. The estimation of the nonstationary delay spread is based on the estimation of the impulse response of the wireless channel. That is, the response of how the burst and its ghost will be reflected in the wireless channel. Since, the burst and its ghost arrive at the receiver .tau. symbol times apart and have different and random power with respect to each other, once the channel impulse is accurately estimated, the value of .tau. can be used to determine whether to engage or disengage an equalizer. That is, the equalizer is only turned on if .tau.
    Type: Grant
    Filed: January 13, 1997
    Date of Patent: May 23, 2000
    Assignee: Lucent Technologies, Inc.
    Inventors: Ahmad R. Bahai, Mohsen Sarraf, James Paul Seymour