Patents by Inventor William Westfield

William Westfield 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: 7917159
    Abstract: In one embodiment, a device in an IP-based cellular wireless communication system includes a monitoring arrangement and a sender arrangement. The monitoring arrangement arranged to detect a location of a cellular phone device with respect to an area of restricted access. The location of the cellular phone device with respect to the area of restricted access is detected in part by determining when a preset period of time has elapsed. The sender is arranged to send a first message including information associated with the cellular phone device when the location of the cellular phone device with respect to the area of restricted access is detected. A method for operating the device is also disclosed.
    Type: Grant
    Filed: August 29, 2008
    Date of Patent: March 29, 2011
    Assignee: Cisco Technology, Inc.
    Inventor: William Westfield
  • Patent number: 7437168
    Abstract: In an IP-based cellular wireless communication system, systems and methods for spatially controlling cellular phone usage are provided. Entry of a cellular phone device into an area of restricted phone access (“quiet zone”) is detected and an IP message identifying the phone sent to a central facility. In one embodiment, an IP message is sent to the phone causing it to change behavior, for example turning off the volume on the ringer. Alternatively, the central facility can process an incoming call for a phone that is determined to be in a quiet zone to reduce intrusion in the quiet zone; for example, it can send the call to a phone mailbox or give the caller a busy signal.
    Type: Grant
    Filed: May 11, 2005
    Date of Patent: October 14, 2008
    Assignee: Cisco Technology, Inc.
    Inventor: William Westfield
  • Patent number: 7269660
    Abstract: Systems and methods for providing a highly useful partial implementation of a network protocol using limited processing and memory resources are provided. This allows network nodes embedded in simple devices such as light switches, thermostats, etc. to be reached using conventional open standard network protocols such as TCP/IP. A representative application is remotely adjusting a house thermostat by accessing a web page.
    Type: Grant
    Filed: May 17, 2002
    Date of Patent: September 11, 2007
    Assignee: Cisco Technology, Inc.
    Inventor: William Westfield
  • Patent number: 6907254
    Abstract: In an IP-based cellular wireless communication system, systems and methods for spatially controlling cellular phone usage are provided. Entry of a cellular phone device into an area of restricted phone access (“quiet zone”) is detected and an IP message identifying the phone sent to a central facility. In one embodiment, an IP message is sent to the phone causing it to change behavior, for example turning off the volume on the ringer. Alternatively, the central facility can process an incoming call for a phone that is determined to be in a quiet zone to reduce intrusion in the quiet zone; for example, it can send the call to a phone mailbox or give the caller a busy signal.
    Type: Grant
    Filed: March 8, 2001
    Date of Patent: June 14, 2005
    Assignee: Cisco Technology, Inc.
    Inventor: William Westfield