Patents by Inventor Ian Leslie Sayers

Ian Leslie Sayers 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: 7688790
    Abstract: A communications system extends over a cellular region formed of a plurality of wireless cells where each cell covers a portion of the cellular region. Each cell has a station which is responsible for communication with the cellular subscriber. In order to for the call to be properly managed in the public cellular domain, responsibility for call handling and processing must first be managed by the public MSC. Call handling with the public MSC for a private cellular subscriber first requires the exchange of information between the two systems. This is facilitated through the exchange of MAP and A interface signaling between the private and public cellular systems. Since this information on the private network is normally transmitted via IP, this information must be converted to standard SS7 based MAP and A protocol signaling in order for the public MSC to process.
    Type: Grant
    Filed: April 23, 2004
    Date of Patent: March 30, 2010
    Assignee: Cisco Technology, Inc.
    Inventors: Ian Leslie Sayers, Paul Jan Long
  • Patent number: 7496103
    Abstract: A communications system extends over a cellular region formed of a plurality of wireless cells where each cell covers a portion of the cellular region. Each cell has a base station which is responsible for communication with the cellular subscriber. In order to for the call to be properly managed in the public cellular domain, responsibility for call handling and processing must first by managed by the public MSC. Call handling with the public MSC for a private cellular subscriber first requires the exchange of information between the two systems. This is facilitated through the exchange of MAP and A interface signaling between the private and public cellular systems. Since this information on the private network is normally transmitted via IP, this information must be converted to standard SS7 based MAP and A protocol signaling in order for the public MSC to process.
    Type: Grant
    Filed: January 6, 2004
    Date of Patent: February 24, 2009
    Assignee: Cisco Technology, Inc.
    Inventors: Ian Leslie Sayers, Paul Jan Long
  • Patent number: 7486966
    Abstract: A communication system formed by a private network that includes a private wireless network. The communication system includes a public wireless network using a public wireless protocol, such as GSM, and includes public networks, such as PSTN, ISDN and the Internet, using a wired protocol, such as 1P. The private network also includes a local area network (LAN) and the private network connects to the public networks using a wired packet protocol, such as IP. The public and private wireless networks operate with the same public wireless protocol, such as GSM, and the private wireless network additionally operates with a wired packet protocol, such as IP. The communication system permits users to operate freely in both public and private wireless networks using standard mobile stations while achieving high private network data rates. The communication system uses normal wireless handsets or other mobile or fixed stations without need for any modifications.
    Type: Grant
    Filed: October 12, 2004
    Date of Patent: February 3, 2009
    Assignee: Cisco Technology, Inc.
    Inventors: Ian Leslie Sayers, Paul Jan Long, Sheausong Yang
  • Patent number: 7469142
    Abstract: A communication system formed by a private wireless network that can be used with public wireless networks using a public wireless protocol, such as GSM, and typically includes public networks, such as PSTN, ISDN and the Internet, using a wired-packet protocol, such as IP. The private network also typically includes a local area network (LAN) and the private network typically connects to the public networks using the wired-packet protocol, such as IP. The public and private wireless networks operate with the same public wireless protocol, such as GSM, and the private wireless network additionally operates with the wired-packet protocol, such as IP. In this environment, multiple wireless cells are present and inter-cell handovers employ multiple protocols including the wired-packet protocol.
    Type: Grant
    Filed: September 6, 2005
    Date of Patent: December 23, 2008
    Assignee: Cisco Technology, Inc.
    Inventors: Bhavannarayana Sri Nrusimha Nelakanti, Ian Leslie Sayers, Paul Jan Long
  • Patent number: 6993359
    Abstract: A communication system formed by a private wireless network that can be used with public wireless networks using a public wireless protocol, such as GSM, and typically includes public networks, such as PSTN, ISDN and the Internet, using a wired-packet protocol, such as IP. The private network also typically includes a local area network (LAN) and the private network typically connects to the public networks using the wired-packet protocol, such as IP. The public and private wireless networks operate with the same public wireless protocol, such as GSM, and the private wireless network additionally operates with the wired-packet protocol, such as IP. In this environment, multiple wireless cells are present and inter-cell handovers employ multiple protocols including the wired-packet protocol.
    Type: Grant
    Filed: April 28, 2000
    Date of Patent: January 31, 2006
    Assignee: Cisco Technology, Inc.
    Inventors: Bhavannarayana Sri Nrusimha Nelakanti, Ian Leslie Sayers, Paul Jan Long
  • Patent number: 6807431
    Abstract: A communication system formed by a private network that includes a private wireless network. The communication system includes a public wireless network using a public wireless protocol, such as GSM, and includes public networks, such as PSTN, ISDN and the Internet, using a wired protocol, such as IP. The private network also includes a local area network (LAN) and the private network connects to the public networks using a wired packet protocol, such as IP. The public and private wireless networks operate with the same public wireless protocol, such as GSM, and the private wireless network additionally operates with a wired packet protocol, such as IP. The communication system permits users to operate freely in both public and private wireless networks using standard mobile stations while achieving high private network data rates. The communication system uses normal wireless handsets or other mobile or fixed stations without need for any modifications.
    Type: Grant
    Filed: March 21, 2003
    Date of Patent: October 19, 2004
    Assignee: Cisco Technology, Inc.
    Inventors: Ian Leslie Sayers, Paul Jan Long, Sheausong Yang
  • Patent number: 6729929
    Abstract: A communications system extending over a cellular region and formed of a plurality of wireless cells. The communications system extends over a cellular region formed of a plurality of wireless cells. Each cell covers an area which includes a portion of the cellular region. Each particular cell includes a base station having a transmitter for transmitting a particular cell signal having parameters including a transmitting frequency and a transmitting power. The particular cell signal is transmitted to cover a portion of the cell region. Each of the base stations includes a parameter detector for detecting the other parameters of the other cell signals from the other cells in the cellular region. A parameter controller controls the particular parameters for the particular cell. The parameters for the particular cell are based upon the other parameters for the other cell signals so that the particular cell signal does not interfere with the other cell signals in the cellular region.
    Type: Grant
    Filed: March 17, 1999
    Date of Patent: May 4, 2004
    Assignee: Cisco Systems, Inc.
    Inventors: Ian Leslie Sayers, Paul Jan Long, Peter Kendall Cripps
  • Patent number: 6687243
    Abstract: A communications system extends over a cellular region formed of a plurality of wireless cells where each cell covers a portion of the cellular region. Each cell has a base station which is responsible for communication with the cellular subscriber. In order for a call to be properly managed in the public cellular domain, responsibility for call handling and processing must first be managed by a public MSC. Call handling with the public MSC for a private cellular subscriber first requires the exchange of information between the two systems. This is facilitated through the exchange of MAP and A interface signaling between the private and public cellular systems. Since this information on the private network is normally transmitted via IP, this information must be converted to standard SS7 based MAP and A protocol signaling in order for the public MSC to process.
    Type: Grant
    Filed: September 29, 1999
    Date of Patent: February 3, 2004
    Assignee: Cisco Technology, Inc.
    Inventors: Ian Leslie Sayers, Paul Jan Long
  • Publication number: 20030186694
    Abstract: A communication system formed by a private network that includes a private wireless network. The communication system includes a public wireless network using a public wireless protocol, such as GSM, and includes public networks, such as PSTN, ISDN and the Internet, using a wired protocol, such as IP. The private network also includes a local area network (LAN) and the private network connects to the public networks using a wired packet protocol, such as IP. The public and private wireless networks operate with the same public wireless protocol, such as GSM, and the private wireless network additionally operates with a wired packet protocol, such as IP. The communication system permits users to operate freely in both public and private wireless networks using standard mobile stations while achieving high private network data rates. The communication system uses normal wireless handsets or other mobile or fixed stations without need for any modifications.
    Type: Application
    Filed: March 21, 2003
    Publication date: October 2, 2003
    Inventors: Ian Leslie Sayers, Paul Jan Long, Sheausong Yang
  • Patent number: 6556811
    Abstract: An air cooled transceiver enclosure which includes multiple cooling posts about the enclosure. The transmitter and receiver antennas are planar mounted above the cooling posts and the cooling posts are selected so as not to interfere with the radiation and form part of the ground plane. The cooling posts are, in general, of a height which is less than one-quarter the wave length of the frequencies to be used. In accordance with another feature of the present invention, the transceiver base unit with cooling posts and mounted antennas has an easily attachable cover which is removably engaged to the transceiver base unit and offset from the planar antennas which lie above the base unit. In accordance with another feature of the invention, the transceiver base unit with cooling posts and mounted antennas has an easily attachable cover which is removably engaged to the transceiver base unit and offset from the planer antennas which lie above the base unit.
    Type: Grant
    Filed: October 8, 1999
    Date of Patent: April 29, 2003
    Assignee: Cisco Technology Inc.
    Inventors: Ian Leslie Sayers, John Richard Sanford
  • Patent number: 6542754
    Abstract: A communications system extends over a cellular region formed of a plurality of wireless cells where each cell covers a portion of the cellular region. Each cell has a base station clock unit that facilitates reliable and accurate synchronization with other clocks units in other cells using a master clock signal from a global positioning system (GPS) or other accurate frequency source. The clock unit in each cell includes a local clock providing a local clock signal for clocking the cell. A master clock source provides one or more master clock signals and a clock synchronizer receives the master clock signals and forms a synchronizing master clock signal for synchronizing the local clock signal. In one or more of the wireless cells of the communication system, the clock unit is a master clock unit which includes a clock distributor for distributing a distributed master clock signal to one or more other wireless cells having slave clock units.
    Type: Grant
    Filed: May 12, 1999
    Date of Patent: April 1, 2003
    Assignee: Cisco Systems, Inc.
    Inventors: Ian Leslie Sayers, Paul Jan Long, Peter Kendall Cripps
  • Patent number: 6539237
    Abstract: A communication system formed by a private network that includes a private wireless network. The communication system includes a public wireless network using a public wireless protocol, such as GSM, and includes public networks, such as PSTN, ISDN and the Internet, using a wired protocol, such as IP. The private network also includes a local area network (LAN) and the private network connects to the public networks using a wired packet protocol, such as IP. The public and private wireless networks operate with the same public wireless protocol, such as GSM, and the private wireless network additionally operates with a wired packet protocol, such as IP. The communication system permits users to operate freely in both public and private wireless networks using standard mobile stations while achieving high private network data rates. The communication system uses normal wireless handsets or other mobile or fixed stations without need for any modifications.
    Type: Grant
    Filed: November 9, 1998
    Date of Patent: March 25, 2003
    Assignee: Cisco Technology, Inc.
    Inventors: Ian Leslie Sayers, Paul Jan Long, Sheausong Yang
  • Patent number: D437844
    Type: Grant
    Filed: October 8, 1999
    Date of Patent: February 20, 2001
    Assignee: Cisco Systems, Inc.
    Inventors: Ian Leslie Sayers, Michael Allan Neiman, Richard William Benner
  • Patent number: D438531
    Type: Grant
    Filed: October 8, 1999
    Date of Patent: March 6, 2001
    Assignee: Cisco Systems, Inc.
    Inventors: Ian Leslie Sayers, Paul Jan Long, Scott Shong-Hsien Yu