Patents by Inventor Matthew J. Fischer

Matthew J. Fischer 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: 8670427
    Abstract: Methods and systems that support, for example, canceling or trimming reservations of a shared communication medium are described. In one embodiment, a method that adapts a network time reservation in a communication network may include, for example, one or more of the following: transmitting a preamble field; transmitting a legacy signal field; transmitting at least one paired field, each paired field comprising a signal field and a protocol data unit; and generating an interframe gap.
    Type: Grant
    Filed: May 13, 2013
    Date of Patent: March 11, 2014
    Assignee: Broadcom Corporation
    Inventors: Matthew J. Fischer, Bruce E. Edwards
  • Patent number: 8611821
    Abstract: An adaptive communication device includes a transceiver that communicates with a first remote communication device in a millimeter wave frequency band in accordance with a first protocol. The transceiver generates conflict detection signals based on signals received from a second remote communication device that communicates in accordance with a second protocol. A conflict detection module detects communication by the second communication device based on the conflict detection signals and generates a model trigger signal in response thereto. A conflict modeling module responds to the model trigger signal by generating idle prediction data based on the conflict detection signals, wherein the idle prediction data predicts an idle period in the communications by the second remote communication device.
    Type: Grant
    Filed: April 28, 2009
    Date of Patent: December 17, 2013
    Assignee: Broadcom Corporation
    Inventors: Saishankar Nandagopalan, Jeyhan Karaoguz, Jason A. Trachewsky, Vinko Erceg, Matthew J. Fischer, Christopher J. Hansen, Murat Mese
  • Publication number: 20130242961
    Abstract: Methods and systems that support, for example, canceling or trimming reservations of a shared communication medium are described. In one embodiment, a method that adapts a network time reservation in a communication network may include, for example, one or more of the following: transmitting a preamble field; transmitting a legacy signal field; transmitting at least one paired field, each paired field comprising a signal field and a protocol data unit; and generating an interframe gap.
    Type: Application
    Filed: May 13, 2013
    Publication date: September 19, 2013
    Applicant: Broadcom Corporation
    Inventors: Matthew J. Fischer, Bruce E. Edwards
  • Patent number: 8520585
    Abstract: Aspects of multicast retry in a communication network includes a terminal device serving as an originator station device within a multicast group configured to provide transmission of one or more protocol data units via a network utilizing a multicast address. Subsequent to transmission of the one or more protocol data units, the terminal device may receive an acknowledgment protocol data unit via one of many destination terminal devices configured to serve as a responder. The received acknowledgment protocol data unit provides a basis to determine whether the transmitted protocol data units were successfully received by one or more destination terminal devices. One or more of the protocol data units may be retransmitted based on the determination. Also, following retransmission, a supplemental acknowledgment protocol data unit may be provided via a destination terminal device of the destination terminal devices exclusive of the responder destination terminal device.
    Type: Grant
    Filed: May 24, 2012
    Date of Patent: August 27, 2013
    Assignee: Broadcom Corporation
    Inventor: Matthew J. Fischer
  • Patent number: 8451858
    Abstract: A method for collision avoidance in multiple protocol networks using a shared communication medium begins by determining a first protocol probable active time period. The method continues by determining a first protocol probable inactive time period. The method continues by generating a transmit blocking indication based on the first protocol probable active time period and the first protocol probable inactive time period.
    Type: Grant
    Filed: April 29, 2011
    Date of Patent: May 28, 2013
    Assignee: Broadcom Corporation
    Inventors: Mark Gonikberg, Matthew J. Fischer, Manoj M. George
  • Publication number: 20130129000
    Abstract: A method for feeding back transmitter beamforming information from a receiving wireless communication device to a transmitting wireless communication device includes a receiving wireless communication device receiving a preamble sequence from the transmitting wireless device. The receiving wireless device estimates a channel response based upon the preamble sequence and then determines an estimated transmitter beamforming unitary matrix based upon the channel response and a receiver beamforming unitary matrix. The receiving wireless device then decomposes the estimated transmitter beamforming unitary matrix to produce the transmitter beamforming information and then wirelessly sends the transmitter beamforming information to the transmitting wireless device.
    Type: Application
    Filed: December 28, 2012
    Publication date: May 23, 2013
    Applicant: BROADCOM CORPORATION
    Inventors: Matthew J. Fischer, Joonsuk Kim, Christopher J. Hansen, Jason A. Trachewsky
  • Patent number: 8446889
    Abstract: Methods and systems that support, for example, canceling or trimming reservations of a shared communication medium are described. In one embodiment, a method that adapts a network time reservation in a communication network may include, for example, one or more of the following: transmitting a preamble field; transmitting a legacy signal field; transmitting at least one paired field, each paired field comprising a signal field and a protocol data unit; and generating an interframe gap.
    Type: Grant
    Filed: June 21, 2011
    Date of Patent: May 21, 2013
    Assignee: Broadcom Corporation
    Inventors: Matthew J. Fischer, Bruce E. Edwards
  • Patent number: 8392785
    Abstract: Aspects of a method and system for a transmitting antenna selection failure recover mode are presented. Aspects of the system may include a transmitting mobile terminal that enables selection of a sequence of protocol data units (PDU), for example a sequence of sounding frames, which may be transmitted during an antenna selection procedure. During transmission of the selected PDU sequence, the transmitting mobile terminal may receive an antenna selection failure indication frame. The transmitting mobile terminal may enable retransmission of at least one previously transmitted PDU in the PDU sequence based on the failure indication. Transmission of subsequent PDUs in the PDU sequence may resume after the retransmission. Alternatively, upon receipt of the failure indication frame the transmitting mobile terminal may restart the selected frame sequence from the beginning, or may select a subsequent PDU frame sequence.
    Type: Grant
    Filed: April 30, 2012
    Date of Patent: March 5, 2013
    Assignee: Broadcom Corporation
    Inventors: Carlos Aldana, Vinko Erceg, Matthew J. Fischer
  • Patent number: 8351399
    Abstract: A method for multiple input multiple output wireless communication begins by determining protocols of wireless communication devices within a proximal region. The method continues by determining whether the protocols of the wireless communication devices within the proximal region are of a like protocol. The method continues by determining the number of transmit antennas. The method continues, when the protocols of the wireless communication devices within the proximal region are of the like protocol, formatting a preamble of a frame of the wireless communication utilizing at least one of cyclic shifting of symbols, cyclic shifting of tones, sparse tone allocation, and sparse symbol allocation based on the number of transmit antennas.
    Type: Grant
    Filed: July 1, 2010
    Date of Patent: January 8, 2013
    Assignee: Broadcom Corporation
    Inventors: Christopher J. Hansen, Jason A. Trachewsky, R. Tushar Moorti, Matthew J. Fischer, Christopher Young
  • Publication number: 20120321015
    Abstract: A method for generating a preamble of a frame for a multiple input multiple output (MIMO) wireless communication begins by, for each transmit antenna, generating a carrier detect field. The method continues by, for a first grouping of the transmit antennas, generating a first guard interval, and at least one channel sounding field. Continuing, the method applies cyclical shift prior to transmission via the first grouping of the transmit antennas. When the MIMO wireless communication includes more than the first grouping of the transmit antennas, for another grouping of the transmit antennas. For the another grouping of the transmit antennas, generating at least one other channel sounding field. The method proceeds by generating the first guard interval prior to the at least one other channel sounding field, and applying another cyclical shift prior to transmission via the another grouping of the transmit antennas.
    Type: Application
    Filed: August 24, 2012
    Publication date: December 20, 2012
    Applicant: BROADCOM CORPORATION
    Inventors: Christopher J. Hansen, Jason A. Trachewsky, R. Tushar Moorti, Matthew J. Fischer, Christopher Young
  • Patent number: 8325610
    Abstract: A method and apparatus for accessing, controlling and utilizing a network communication medium. Various aspects of the present invention may comprise a first networked device with power-save capability. The first networked device may acquire control of a communication medium utilizing a medium access protocol, which may be contention-based. The first networked device may utilize the communication medium to communicate information to a second networked device. The first networked device may transfer control of the communication medium to the second networked device, whereby the second networked device may control the communication medium without having to acquire control of the communication medium by utilizing the medium access protocol. The second networked device may utilize the communication medium to communicate information to the first networked device while maintaining control over the communication medium.
    Type: Grant
    Filed: October 2, 2007
    Date of Patent: December 4, 2012
    Assignee: Broadcom Corporation
    Inventor: Matthew J. Fischer
  • Publication number: 20120236777
    Abstract: Aspects of multicast retry in a communication network includes a terminal device serving as an originator station device within a multicast group configured to provide transmission of one or more protocol data units via a network utilizing a multicast address. Subsequent to transmission of the one or more protocol data units, the terminal device may receive an acknowledgment protocol data unit via one of many destination terminal devices configured to serve as a responder. The received acknowledgment protocol data unit provides a basis to determine whether the transmitted protocol data units were successfully received by one or more destination terminal devices. One or more of the protocol data units may be retransmitted based on the determination. Also, following retransmission, a supplemental acknowledgment protocol data unit may be provided via a destination terminal device of the destination terminal devices exclusive of the responder destination terminal device.
    Type: Application
    Filed: May 24, 2012
    Publication date: September 20, 2012
    Applicant: BROADCOM CORPORATION
    Inventor: Matthew J. Fischer
  • Publication number: 20120213056
    Abstract: Aspects of a method and system for a transmitting antenna selection failure recover mode are presented. Aspects of the system may include a transmitting mobile terminal that enables selection of a sequence of protocol data units (PDU), for example a sequence of sounding frames, which may be transmitted during an antenna selection procedure. During transmission of the selected PDU sequence, the transmitting mobile terminal may receive an antenna selection failure indication frame. The transmitting mobile terminal may enable retransmission of at least one previously transmitted PDU in the PDU sequence based on the failure indication. Transmission of subsequent PDUs in the PDU sequence may resume after the retransmission. Alternatively, upon receipt of the failure indication frame the transmitting mobile terminal may restart the selected frame sequence from the beginning, or may select a subsequent PDU frame sequence.
    Type: Application
    Filed: April 30, 2012
    Publication date: August 23, 2012
    Applicant: BROADCOM CORPORATION
    Inventors: Carlos Aldana, Vinko Erceg, Matthew J. Fischer
  • Publication number: 20120207095
    Abstract: Providing wireless transmission, where in a first transmission mode, transmitting a plurality of frames using a first interframe spacing interval. When in a second transmission mode, transmitting the plurality of frames using a second interframe spacing interval, wherein the second interframe spacing is less than the first interframe spacing.
    Type: Application
    Filed: April 19, 2012
    Publication date: August 16, 2012
    Applicant: BROADCOM CORPORATION
    Inventors: Rajendra Tushar Moorti, Matthew J. Fischer, George Kondylis
  • Publication number: 20120190308
    Abstract: A wireless transceiver includes an antenna array that transmits an outbound RF signal containing outbound data to remote transceivers and that receives an inbound RF signal containing inbound data from the remote RF transceivers, wherein the antenna array is configurable based on a control signal. An antenna configuration controller generates the control signal to configure the antenna array to hop among a plurality of radiation patterns based on a hopping sequence. An RF transceiver section generates the outbound RF signal based on the outbound data and that generates the inbound data based on the inbound RF signal. In one configuration, a switching section selectively couples a selected one of the antennas in the array to the RF transceiver section, based on the control signal. In another configuration, the RF transceiver section includes an RF section for each antenna in the array.
    Type: Application
    Filed: April 2, 2012
    Publication date: July 26, 2012
    Applicant: BROADCOM CORPORATION
    Inventors: Saishankar Nandagopalan, Jeyhan Karaoguz, Jason A. Trachewsky, Vinko Erceg, Christopher J. Hansen, Matthew J. Fischer, Murat Mese
  • Patent number: 8218468
    Abstract: Aspects of a method and system for multicast retry in a communication network may include an originator station device within a multicast group that enables transmission of one or more PDUs via a network utilizing a multicast address. The transmitted one or more PDUs may be associated with an identified multicast flow. Subsequent to transmission of the one or more PDUs, the originator station device may receive one or more acknowledgment PDUs. The received acknowledgment PDUs may enable the originator station device to determine whether the transmitted PDUs were successfully received by one or more destination terminal devices. One or more of the PDUs may be retransmitted based on the determination. The originator station device and one or more destination terminal devices may be members of a multicast group. The multicast group may be identified based on the multicast address.
    Type: Grant
    Filed: September 12, 2008
    Date of Patent: July 10, 2012
    Assignee: Broadcom Corporation
    Inventor: Matthew J. Fischer
  • Patent number: 8194626
    Abstract: Providing wireless transmission, where in a first transmission mode, transmitting a plurality of frames using a first interframe spacing interval. When in a second transmission mode, transmitting the plurality of frames using a second interframe spacing interval, wherein the second interframe spacing is less than the first interframe spacing.
    Type: Grant
    Filed: November 10, 2006
    Date of Patent: June 5, 2012
    Assignee: Broadcom Corporation
    Inventors: Rajendra Tushar Moorti, Matthew J. Fischer, George Kondylis
  • Patent number: 8175542
    Abstract: A wireless transceiver includes a phased array of antennas, that transmit an outbound RF signal containing outbound data to remote transceivers and that receives an inbound RF signal containing inbound data from the remote RF transceivers, wherein the phased array of antennas is configurable based on a control signal. An antenna configuration controller generates the control signal to configure the phased array of antennas to hop among a plurality of radiation patterns based on a hopping sequence. An RF transceiver section generates the outbound RF signal based on the outbound data and that generates the inbound data based on the inbound RF signal. In one configuration, a switching section selectively couples a selected antenna of the phased array of antennas to the RF transceiver section, based on the control signal. In another configuration, the RF transceiver section includes an RF section for each antenna of the phased array of antennas.
    Type: Grant
    Filed: April 22, 2009
    Date of Patent: May 8, 2012
    Assignee: Broadcom Corporation
    Inventors: Saishankar Nandagopalan, Jeyhan Karaoguz, Jason A. Trachewsky, Vinko Erceg, Christopher J. Hansen, Matthew J. Fischer, Murat Mese
  • Patent number: 8176378
    Abstract: Aspects of a method and system for a transmitting antenna selection failure recover mode are presented. Aspects of the system may include a transmitting mobile terminal that enables selection of a sequence of protocol data units (PDU), for example a sequence of sounding frames, which may be transmitted during an antenna selection procedure. During transmission of the selected PDU sequence, the transmitting mobile terminal may receive an antenna selection failure indication frame. The transmitting mobile terminal may enable retransmission of at least one previously transmitted PDU in the PDU sequence based on the failure indication. Transmission of subsequent PDUs in the PDU sequence may resume after the retransmission. Alternatively, upon receipt of the failure indication frame the transmitting mobile terminal may restart the selected frame sequence from the beginning, or may select a subsequent PDU frame sequence.
    Type: Grant
    Filed: August 29, 2008
    Date of Patent: May 8, 2012
    Assignee: Broadcom Corporation
    Inventors: Carlos Aldana, Vinko Erceg, Matthew J. Fischer
  • Patent number: 8170496
    Abstract: A wireless transceiver includes at least one phased array antenna, that transmits an outbound RF signal containing outbound data to at least one remote transceiver and that receives an inbound RF signal containing inbound data from the at least one remote RF transceiver, wherein the at least one phased array antenna is configurable based on a control signal. An antenna configuration controller generates the control signal to configure the phased array antenna to hop among a plurality of radiation patterns based on a hopping sequence. At least one RF transceiver section generates the outbound RF signal based on the outbound data and that generates the inbound data based on the inbound RF signal.
    Type: Grant
    Filed: April 22, 2009
    Date of Patent: May 1, 2012
    Assignee: Broadcom Corporation
    Inventors: Saishankar Nandagopalan, Jeyhan Karaoguz, Jason A. Trachewsky, Vinko Erceg, Christopher J. Hansen, Matthew J. Fischer, Murat Mese