Patents by Inventor Ari Arapostathis

Ari Arapostathis 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).

  • Power-saving method for wireless sensor network
    Patent number: 7647078
    Abstract: A power-saving method of wireless communication device, which operates a sleep mode for minimizing power consumption except for an active mode for communication, initializes a sleep probability upon the device being turned on, operates the active mode for communication with starting an active mode timer, transits to the sleep mode when there is no packet to transmit or receive before the active mode timer expires; and determines an exit from the sleep mode on the basis of the sleep probability.
    Type: Grant
    Filed: March 7, 2006
    Date of Patent: January 12, 2010
    Assignees: Samsung Electronics Co., Ltd., Board of Regents, The University of Texas System
    Inventors: Jae-Hoon Kim, Yong-Sung Roh, Ari Arapostathis, Young-Sang Kim, Young-Gon Choi
  • Power-saving method for wireless sensor network
    Patent number: 7447526
    Abstract: A power saving method of the present invention is provide for a wireless sensor network including a plurality of sensor nodes each transiting between a power saving mode and a transmit/receive mode, determines whether or not there is no transmit or receive data, enters the power saving mode if there is no transmit or receive data, and controls power consumption on the basis of signal-to-noise ratios in the power saving mode. In the power saving method of the present invention, it is possible to minimize the power consumption regardless of nodes density and without an adverse effect on the connectivity of the network, since the sojourn times of the sleep and idle states are determined adaptive to the interference level from neighboring nodes.
    Type: Grant
    Filed: October 28, 2005
    Date of Patent: November 4, 2008
    Assignees: Samsung Electronics Co., Ltd., Board of Regents, The University of Texas System
    Inventors: Jae-Hoon Kim, Jung-Ho Kim, Ji-Hoon Lee, Young-Gon Choi, Young-Sang Kim, Ari Arapostathis
  • Power-saving method for wireless sensor network
    Publication number: 20070211654
    Abstract: A power-saving method of wireless communication device, which operates a sleep mode for minimizing power consumption except for an active mode for communication, initializes a sleep probability upon the device being turned on, operates the active mode for communication with starting an active mode timer, transits to the sleep mode when there is no packet to transmit or receive before the active mode timer expires; and determines an exit from the sleep mode on the basis of the sleep probability.
    Type: Application
    Filed: March 7, 2006
    Publication date: September 13, 2007
    Inventors: Jae-Hoon Kim, Yong-Sung Roh, Ari Arapostathis, Young-Sang Kim, Young-Gon Choi
  • Power-saving method for wireless sensor network
    Publication number: 20070099678
    Abstract: A power saving method of the present invention is provide for a wireless sensor network including a plurality of sensor nodes each transiting between a power saving mode and a transmit/receive mode, determines whether or not there is no transmit or receive data, enters the power saving mode if there is no transmit or receive data, and controls power consumption on the basis of signal-to-noise ratios in the power saving mode. In the power saving method of the present invention, it is possible to minimize the power consumption regardless of nodes density and without an adverse effect on the connectivity of the network, since the sojourn times of the sleep and idle states are determined adaptive to the interference level from neighboring nodes.
    Type: Application
    Filed: October 28, 2005
    Publication date: May 3, 2007
    Inventors: Jae-Hoon Kim, Jung-Ho Kim, Ji-Hoon Lee, Young-Gon Choi, Young-Sang Kim, Ari Arapostathis