Patents by Inventor Leif Woodahl

Leif Woodahl 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: 9826433
    Abstract: According to a disclosed embodiment, a flow indication counter is incremented each time a data packet is transmitted from a buffer. When the number of data packets transmitted equals or exceeds a threshold number, a flow indication message comprising the buffer window size is generated and transmitted to the base station controller. Further, flow indication messages can be generated and transmitted every threshold time interval, independently of the number of data packets transmitted to ensure that flow indication messages are sent at least every preset time interval. Moreover, a system for flow control can be constructed comprising a flow indication counter module configured to provide an updated number of data packets transmitted. The system further comprises a window size monitoring module which determines the buffer window size and a message generating module which generates a flow indication message comprising the buffer window size.
    Type: Grant
    Filed: May 14, 2007
    Date of Patent: November 21, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Sanjay Kamath, Michael A. Kongelf, Leif Woodahl
  • Publication number: 20170070847
    Abstract: Methods, systems and devices for locating a wireless identity transmitter with a central server connected with one or more proximity broadcast receivers, such as stationary receivers or mobile devices operating as wireless receivers. The wireless identity transmitter may be a compact device configured to broadcast messages, such as through Bluetooth® advertisements, including an identification code. When within proximity, a proximity broadcast receiver may receive broadcast messages from the wireless identity transmitter and relay location information along with the wireless identity transmitter's identification code to a central server as sighting messages. The proximity broadcast receiver's own location may provide an approximate location for the wireless identity transmitter. The central server may process sighting messages, which may include signal strength information, to accurately locate the wireless identity transmitter.
    Type: Application
    Filed: November 17, 2016
    Publication date: March 9, 2017
    Inventors: Steven R. Altman, Stephen A. Sprigg, Liz Gasser, Joel Linsky, Leif Woodahl, Jason Kenagy, Jose Menendez, Charles S. Wurster, Paul Jacobs, Neville Meijers, Peggy Johnson, Dave Wise, Kevin Hunter
  • Patent number: 9544075
    Abstract: Methods, systems and devices for locating a wireless identity transmitter with a central server connected with one or more proximity broadcast receivers, such as stationary receivers or mobile devices operating as wireless receivers. The wireless identity transmitter may be a compact device configured to broadcast messages, such as through Bluetooth® advertisements, including an identification code. When within proximity, a proximity broadcast receiver may receive broadcast messages from the wireless identity transmitter and relay location information along with the wireless identity transmitter's identification code to a central server as sighting messages. The proximity broadcast receiver's own location may provide an approximate location for the wireless identity transmitter. The central server may process sighting messages, which may include signal strength information, to accurately locate the wireless identity transmitter.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: January 10, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Steven R Altman, Stephen A Sprigg, Liz Gasser, Joel Linsky, Leif Woodahl, Jason Kenagy, Jose Menendez, Charles S Wurster, Paul Jacobs, Neville Meijers, Peggy Johnson, Dave Wise, Kevin Hunter
  • Patent number: 9331384
    Abstract: A combination battery and antenna includes a battery having a positive contact and a negative contact, at least one of the positive contact and the negative contact comprising an antenna coupled to a matching circuit and to a radio frequency choke, whereby direct current (DC) is supplied to a battery circuit and a radio frequency (RF) signal is supplied to an RF circuit, and at least one secondary radiator parasitically coupled to the at least one of the positive contact and the negative contact of the battery.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: May 3, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Jatupum Jenwatanavet, Allen M. Tran, Joe C. Le, Leif A. Woodahl
  • Publication number: 20140071004
    Abstract: A combination battery and antenna includes a battery having a positive contact and a negative contact, at least one of the positive contact and the negative contact comprising an antenna coupled to a matching circuit and to a radio frequency choke, whereby direct current (DC) is supplied to a battery circuit and a radio frequency (RF) signal is supplied to an RF circuit, and at least one secondary radiator parasitically coupled to the at least one of the positive contact and the negative contact of the battery.
    Type: Application
    Filed: September 13, 2012
    Publication date: March 13, 2014
    Applicant: QUALCOMM LABS, INC.
    Inventors: Jatupum Jenwatanavet, Allen M. Tran, Joe C. Le, Leif A. Woodahl
  • Publication number: 20070223383
    Abstract: According to a disclosed embodiment, a flow indication counter is incremented each time a data packet is transmitted from a buffer. When the number of data packets transmitted equals or exceeds a threshold number, a flow indication message comprising the buffer window size is generated and transmitted to the base station controller. Further, flow indication messages can be generated and transmitted every threshold time interval, independently of the number of data packets transmitted to ensure that flow indication messages are sent at least every preset time interval. Moreover, a system for flow control can be constructed comprising a flow indication counter module configured to provide an updated number of data packets transmitted. The system further comprises a window size monitoring module which determines the buffer window size and a message generating module which generates a flow indication message comprising the buffer window size.
    Type: Application
    Filed: May 14, 2007
    Publication date: September 27, 2007
    Applicant: QUALCOMM Incorporated
    Inventors: Sanjay Kamath, Michael Kongelf, Leif Woodahl
  • Patent number: 7237007
    Abstract: According to a disclosed embodiment, a flow indication counter is incremented each time a data packet is transmitted from a buffer. When the number of data packets transmitted equals or exceeds a threshold number, a flow indication message comprising the buffer window size is generated and transmitted to the base station controller. Further, flow indication messages can be generated and transmitted every threshold time interval, independently of the number of data packets transmitted to ensure that flow indication messages are sent at least every preset time interval. Moreover, a system for flow control can be constructed comprising a flow indication counter module configured to provide an updated number of data packets transmitted. The system further comprises a window size monitoring module which determines the buffer window size and a message generating module which generates a flow indication message comprising the buffer window size.
    Type: Grant
    Filed: December 5, 2001
    Date of Patent: June 26, 2007
    Assignee: Qualcomm Incorporated
    Inventors: Sanjay Kamath, Michael A. Kongelf, Leif Woodahl
  • Publication number: 20030103460
    Abstract: According to a disclosed embodiment, a flow indication counter is incremented each time a data packet is transmitted from a buffer. When the number of data packets transmitted equals or exceeds a threshold number, a flow indication message comprising the buffer window size is generated and transmitted to the base station controller. Further, flow indication messages can be generated and transmitted every threshold time interval, independently of the number of data packets transmitted to ensure that flow indication messages are sent at least every preset time interval. Moreover, a system for flow control can be constructed comprising a flow indication counter module configured to provide an updated number of data packets transmitted. The system further comprises a window size monitoring module which determines the buffer window size and a message generating module which generates a flow indication message comprising the buffer window size.
    Type: Application
    Filed: December 5, 2001
    Publication date: June 5, 2003
    Inventors: Sanjay Kamath, Michael A. Kongelf, Leif Woodahl
  • Patent number: D720335
    Type: Grant
    Filed: March 6, 2013
    Date of Patent: December 30, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Daniel R Ervin, Leif A Woodahl, Ty R Aberle, Daniel H Weber, Jeffrey J Vaccaro, Jatupum Jenwatanavet
  • Patent number: D720336
    Type: Grant
    Filed: March 6, 2013
    Date of Patent: December 30, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Daniel R Ervin, Leif A Woodahl, Steven J Lundgren, David M Bahnemann, Jeffrey J Vaccaro, Jatupum Jenwatanavet