Patents by Inventor Pedro E. Coronel

Pedro E. Coronel 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: 8086248
    Abstract: Packets are periodically transmitted by a plurality of radio beacons deployed at known positions over a location estimation area. Monitoring is conducted for incoming packets. Upon receipt of a packet from a kth one of the beacons, received signal strength, RSSI, is measured at each of the antenna outputs, the packet is decoded to obtain the unique identifier and the unique sequence number, and the received signal strength at each of the antenna outputs is spatially averaged. The measuring, decoding, and spatial averaging are repeated for additional packets from the kth one of the beacons during a pre-defined time window T. The plurality of spatially averaged received signal strengths are temporally averaged over the pre-defined time window T, to obtain a spatially and temporally averaged value of received signal strength. The distance dk from the apparatus to the kth one of the beacons is approximated based on the spatially and temporally averaged value of received signal strength.
    Type: Grant
    Filed: May 16, 2008
    Date of Patent: December 27, 2011
    Assignee: International Business Machines Corporation
    Inventors: Pedro E. Coronel, Wolfgang H. Schott, Beat Weiss
  • Patent number: 7969300
    Abstract: A wireless sensor network includes a controller connected with multiple antennas for sending out a beacon signal at different instants into different directions and for receiving a sensor signal. Furthermore, the wireless sensor network comprises a sensor having a receiver connected with a sensor antenna for receiving the beacon signal, a transmitter connected with the sensor antenna for sending out the sensor signal, and a control unit which takes care that the sensor signal is transmitted after the beacon signal has been received.
    Type: Grant
    Filed: March 10, 2008
    Date of Patent: June 28, 2011
    Assignee: International Business Machines Corporation
    Inventors: Pedro E. Coronel, Simeon Furrer, Wolfgang H. Schott
  • Patent number: 7782188
    Abstract: A wireless sensor network includes a controller connected with multiple antennas for sending out a beacon signal at different instants into different directions and for receiving a sensor signal. Furthermore, the wireless sensor network comprises a sensor having a receiver connected with a sensor antenna for receiving the beacon signal, a transmitter connected with the sensor antenna for sending out the sensor signal, and a control unit which takes care that the sensor signal is transmitted after the beacon signal has been received.
    Type: Grant
    Filed: March 10, 2008
    Date of Patent: August 24, 2010
    Assignee: International Business Machines Corporation
    Inventors: Pedro E. Coronel, Simeon Furrer, Wolfgang H. Schott
  • Publication number: 20090286548
    Abstract: Packets are periodically transmitted by a plurality of radio beacons deployed at known positions over a location estimation area. Monitoring is conducted for incoming packets. Upon receipt of a packet from a kth one of the beacons, received signal strength, RSSI, is measured at each of the antenna outputs, the packet is decoded to obtain the unique identifier and the unique sequence number, and the received signal strength at each of the antenna outputs is spatially averaged. The measuring, decoding, and spatial averaging are repeated for additional packets from the kth one of the beacons during a pre-defined time window T. The plurality of spatially averaged received signal strengths are temporally averaged over the pre-defined time window T, to obtain a spatially and temporally averaged value of received signal strength. The distance dk from the apparatus to the kth one of the beacons is approximated based on the spatially and temporally averaged value of received signal strength.
    Type: Application
    Filed: May 16, 2008
    Publication date: November 19, 2009
    Applicant: International Business Machines Corporation
    Inventors: Pedro E. Coronel, Wolfgang H. Schott, Beat Weiss
  • Publication number: 20080164996
    Abstract: A wireless sensor network includes a controller connected with multiple antennas for sending out a beacon signal at different instants into different directions and for receiving a sensor signal. Furthermore, the wireless sensor network comprises a sensor having a receiver connected with a sensor antenna for receiving the beacon signal, a transmitter connected with the sensor antenna for sending out the sensor signal, and a control unit which takes care that the sensor signal is transmitted after the beacon signal has been received.
    Type: Application
    Filed: March 10, 2008
    Publication date: July 10, 2008
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Pedro E Coronel, Simeon Furrer, Wolfgang H. Schott
  • Publication number: 20080164995
    Abstract: A wireless sensor network includes a controller connected with multiple antennas for sending out a beacon signal at different instants into different directions and for receiving a sensor signal. Furthermore, the wireless sensor network comprises a sensor having a receiver connected with a sensor antenna for receiving the beacon signal, a transmitter connected with the sensor antenna for sending out the sensor signal, and a control unit which takes care that the sensor signal is transmitted after the beacon signal has been received.
    Type: Application
    Filed: March 10, 2008
    Publication date: July 10, 2008
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Pedro E. Coronel, Simeon Furrer, Wolfgang H. Schott
  • Patent number: 7378953
    Abstract: Provides: methods for transmission of signals between a sensor and a controller in a wireless sensor network; methods for operating the controller in the wireless sensor network; and methods for transmitting a sensor signal in the wireless sensor network from the sensor to the controller. A wireless sensor network includes a controller connected with multiple antennas for sending out a beacon signal at different instants into different directions and for receiving a sensor signal. Furthermore, the wireless sensor network comprises a sensor having a receiver connected with a sensor antenna for receiving the beacon signal, a transmitter connected with the sensor antenna for sending out the sensor signal, and a control unit which takes care that the sensor signal is transmitted after the beacon signal has been received.
    Type: Grant
    Filed: August 29, 2005
    Date of Patent: May 27, 2008
    Assignee: International Business Machines Corporation
    Inventors: Pedro E. Coronel, Simeon Furrer, Wolfgang H. Schott
  • Patent number: 7349462
    Abstract: The present invention discloses a method and apparatus for adjusting gain setting, receiver clock frequency, and symbol timing in an OFDM radio receiver. The method is based on the reception of a preamble with known periodic training sequences transmitted prior to user data over the radio channel. By computing a periodicity metric, an inner receiver detects the presence of periodic signals in the received data sequence, provides means to set the Variable Gain Amplifier VGA gain in the radio frontend, and estimates frequency offsets between the transmit and receive clock. Matched filters are used to determine the symbol timing. A finite-state-machine schedules various tasks during the receiver startup.
    Type: Grant
    Filed: December 17, 2003
    Date of Patent: March 25, 2008
    Assignee: International Business Machines Corporation
    Inventors: Wolfgang Schott, Pedro E. Coronel, Simeon Furrer, Jens Jelitto, Beat Weiss, Dietrich Maiwald
  • Publication number: 20080002601
    Abstract: The present invention discloses a MIMO relay apparatus comprising a data source node, a relay node, and a destination node. The data source node sends a source send data x over a first radio channel H. The relay node receives a relay receive data yr from said first radio channel H, applying a relay transformation ? to relay receive data yr to obtain a relay send data xr. The relay node further sends relay send data xr over a second radio channel G. The destination node receives a destination receive data y from second radio channel G, and applies a destination transformation ? to destination receive data y to obtain a destination output data r representing an estimate of said source send data x. Relay transformation ? and said destination transformation ? are jointly tuned with respect to each other.
    Type: Application
    Filed: June 30, 2006
    Publication date: January 3, 2008
    Inventors: Pedro E. Coronel, Wolfgang H. Schott
  • Publication number: 20040161046
    Abstract: The present invention discloses a method and apparatus for adjusting gain setting, receiver clock frequency, and symbol timing in an OFDM radio receiver. The method is based on the reception of a preamble with known periodic training sequences transmitted prior to user data over the radio channel. By computing a periodicity metric, an inner receiver detects the presence of periodic signals in the received data sequence, provides means to set the Variable Gain Amplifier VGA gain in the radio frontend, and estimates frequency offsets between the transmit and receive clock. Matched filters are used to determine the symbol timing. A finite-state-machine schedules various tasks during the receiver startup.
    Type: Application
    Filed: December 17, 2003
    Publication date: August 19, 2004
    Applicant: International Business Machines Corporation
    Inventors: Wolfgang Schott, Pedro E. Coronel, Simeon Furrer, Jens Jelitto, Beat Weiss, Dietrich Maiwald