Patents by Inventor Marc John Hammond

Marc John Hammond 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).

  • Publication number: 20090181681
    Abstract: Location information available from a navigational system, such as the Global Positioning System (GPS) is used to transition a mobile client, such as a handset, between a Wide Area Network (WAN), such as a cellular telephone network, and a Wireless Local Area Network (WLAN), such as a system conforming to the 802.11 standard, (and vice versa), under user control and initiation, and may also be used to transition between two or more WLANs, for example, WLANs with different ranges and data rates. The transition is of a ‘break-before-make’ type, i.e. the mobile client is authenticated to the ‘new’ network via the ‘old’ network, disconnects from the ‘old’ network, and turns off the associated circuitry, turns on the circuitry needed to connect to the ‘new’ network, and then connects to it, overcoming problems such as mutual interference and receiver desensitization by transmitting only on one frequency band at any given time.
    Type: Application
    Filed: October 9, 2008
    Publication date: July 16, 2009
    Applicant: Agere Systems, Inc.
    Inventors: Marc John Hammond, Poonvanpilli Gopal Madhavan
  • Publication number: 20040203789
    Abstract: Location information available from a navigational system, such as the Global Positioning System (GPS) is used to transition a mobile client, such as a handset, between a Wide Area Network (WAN), such as a cellular telephone network, and a Wireless Local Area Network (WLAN), such as a system conforming to the 802.11 standard, (and vice versa), under user control and initiation, and may also be used to transition between two or more WLANs, for example, WLANs with different ranges and data rates. The transition is of a ‘break-before-make’ type, i.e. the mobile client is authenticated to the ‘new’ network via the ‘old’ network, disconnects from the ‘old’ network, and turns off the associated circuitry, turns on the circuitry needed to connect to the ‘new’ network, and then connects to it, overcoming problems such as mutual interference and receiver desensitization by transmitting only on one frequency band at any given time.
    Type: Application
    Filed: November 12, 2002
    Publication date: October 14, 2004
    Inventors: Marc John Hammond, P.G. Madhavan