Patents by Inventor David Petsko

David Petsko 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: 8526887
    Abstract: In an example embodiment, an apparatus, comprising a first wireless transceiver, a first directional antenna coupled to the first wireless transceiver, a second wireless transceiver, a second directional antenna coupled to the second wireless transceiver, and control logic coupled to the first wireless transceiver and the second wireless transceiver. The first wireless transceiver and second wireless transceiver can concurrently receive wireless signals that are spatially separated. The first wireless transceiver asserts a signal while communicating with another wireless device. The control logic is configured to prevent the second wireless transceiver from transmitting while the first wireless transceiver is asserting the signal.
    Type: Grant
    Filed: February 6, 2012
    Date of Patent: September 3, 2013
    Assignee: Cisco Technology, Inc.
    Inventors: Robert Meier, Stephen Saliga, Johannes Kruys, David Petsko
  • Publication number: 20120135694
    Abstract: In an example embodiment, an apparatus, comprising a first wireless transceiver, a first directional antenna coupled to the first wireless transceiver, a second wireless transceiver, a second directional antenna coupled to the second wireless transceiver, and control logic coupled to the first wireless transceiver and the second wireless transceiver. The first wireless transceiver and second wireless transceiver can concurrently receive wireless signals that are spatially separated. The first wireless transceiver asserts a signal while communicating with another wireless device. The control logic is configured to prevent the second wireless transceiver from transmitting while the first wireless transceiver is asserting the signal.
    Type: Application
    Filed: February 6, 2012
    Publication date: May 31, 2012
    Inventors: Robert Meier, Stephen Saliga, Johannes Kruys, David Petsko
  • Patent number: 8165534
    Abstract: In an example embodiment, an apparatus, comprising a first wireless transceiver, a first directional antenna coupled to the first wireless transceiver, a second wireless transceiver, a second directional antenna coupled to the second wireless transceiver, and control logic coupled to the first wireless transceiver and the second wireless transceiver. The first wireless transceiver and second wireless transceiver can concurrently receive wireless signals that are spatially separated. The first wireless transceiver asserts a signal while communicating with another wireless device. The control logic is configured to prevent the second wireless transceiver from transmitting while the first wireless transceiver is asserting the signal.
    Type: Grant
    Filed: July 28, 2008
    Date of Patent: April 24, 2012
    Assignee: Cisco Technology, Inc.
    Inventors: Robert Meier, Stephen Saliga, Johannes Kruys, David Petsko
  • Publication number: 20100022261
    Abstract: In an example embodiment, an apparatus, comprising a first wireless transceiver, a first directional antenna coupled to the first wireless transceiver, a second wireless transceiver, a second directional antenna coupled to the second wireless transceiver, and control logic coupled to the first wireless transceiver and the second wireless transceiver. The first wireless transceiver and second wireless transceiver can concurrently receive wireless signals that are spatially separated. The first wireless transceiver asserts a signal while communicating with another wireless device. The control logic is configured to prevent the second wireless transceiver from 10 transmitting while the first wireless transceiver is asserting the signal.
    Type: Application
    Filed: July 28, 2008
    Publication date: January 28, 2010
    Inventors: Robert Meier, Stephen Saliga, Johannes Kruys, David Petsko
  • Patent number: 7529218
    Abstract: A method for controlling cell size associated with an access point that has a receive sensitivity and an output power. The method includes changing a start of packet threshold and/or a clear channel assessment threshold to vary the cell size of the access point.
    Type: Grant
    Filed: October 29, 2004
    Date of Patent: May 5, 2009
    Inventors: Daniel Lyons, David Petsko, Donald I. Sloan, James Jay Friedmann, James A. Amos, Fred J. Anderson
  • Publication number: 20060092889
    Abstract: A method for controlling cell size associated with an access point that has a receive sensitivity and an output power. The method includes changing a start of packet threshold and/or a clear channel assessment threshold to vary the cell size of the access point.
    Type: Application
    Filed: October 29, 2004
    Publication date: May 4, 2006
    Inventors: Daniel Lyons, David Petsko, Donald Sloan, James Friedmann, James Amos, Fred Anderson
  • Publication number: 20060046739
    Abstract: A method to adjust either the detection sensitivity threshold (e.g., the clear channel assessment (CCA) for an 802.11 complaint wireless transceiver) and/or the receiver communication sensitivity threshold (e.g., the start of packet (SOP) for an 802.11 complaint wireless transceiver) to improve performance in a wireless networking environment, such as a high density environment. Both the detection cell and the communication cell can be set equal to each other or the detection cell and communication cell can be independently set. There are also described herein techniques for determining detection cell. Also described herein are techniques for determining communication cell. The present invention includes apparatuses configured to implement a method and/or technique described herein.
    Type: Application
    Filed: July 22, 2005
    Publication date: March 2, 2006
    Inventors: John Blosco, David Petsko
  • Patent number: 6535066
    Abstract: An adaptive bias control scheme for an Orthogonal Frequency Division Multiplex (“OFDM”) transmitter. The transmitter chain is comprised of class A amplifiers. The amplifiers in the transmit chain are backed off from P1dB to ensure linear amplification of the signal. Amplifier back off is defined as (Amplifier P1dB) minus (Average Signal Power). Since the efficiency of the amplifier decreases in direct proportion, to the back off, it is desirable to minimize back off while maintaining linearity. The back off is dependent on the peak to average power ratio (“PAPR”) of the OFDM waveform. The PAPR is measured on a symbol by symbol basis and the amplifier P1dB is adjusted in proportion to the PAPR of the symbol, maintaining a P1dB sufficient to provide the required back off dictated by the maximum PAPR of the OFDM waveform, but can be lowered for symbols with PAPR below the maximum.
    Type: Grant
    Filed: June 21, 2001
    Date of Patent: March 18, 2003
    Assignee: Cisco Technology, Inc.
    Inventor: David Petsko