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    31.
    发明专利
    未知

    公开(公告)号：AT456272T

    公开(公告)日：2010-02-15

    申请号：AT01984968

    申请日：2001-12-27

    Applicant: SYMBOL TECHNOLOGIES INC

    Inventor： BRIDGELALL RAJ

    IPC: H04W36/14 ,  H04L12/28 ,  H04L12/56

    Abstract: A Mobile Station (MS) is able to vertically roam in either direction between two different networks, i.e., WWAN and WLAN. The MS is equipped with a dual mode Radio for WWAN and WLAN transmissions. The WLAN Radio is linked to a WLAN Enterprise Gateway Controller (EGC) via a first air link and the WWAN Radio is linked to a WWAN Base Transceiver Station (BTS) via a second air link. An outgoing VoIP call from the WLAN Radio to a remote party on the WWAN will transition or seamlessly switch over to a WWAN connection when the MS detects packet error rates, frequent scale back or consistent signal degradation.

    Automatic seamless vertical roaming between wireless local area networks and wireless wide area networks
    32.
    发明专利
    Automatic seamless vertical roaming between wireless local area networks and wireless wide area networks 未知

    公开(公告)号：AU2002233965B2

    公开(公告)日：2007-02-01

    申请号：AU2002233965

    申请日：2001-12-27

    Applicant: SYMBOL TECHNOLOGIES INC

    Inventor： BRIDGELALL RAJ

    IPC: H04L12/28 ,  H04L12/56 ,  H04W36/14

    Abstract: A Mobile Station (MS) is able to vertically roam in either direction between two different networks, i.e., WWAN and WLAN. The MS is equipped with a dual mode Radio for WWAN and WLAN transmissions. The WLAN Radio is linked to a WLAN Enterprise Gateway Controller (EGC) via a first air link and the WWAN Radio is linked to a WWAN Base Transceiver Station (BTS) via a second air link. An outgoing VoIP call from the WLAN Radio to a remote party on the WWAN will transition or seamlessly switch over to a WWAN connection when the MS detects packet error rates, frequent scale back or consistent signal degradation.

    Object location based security using RFID
    36.
    发明专利
    Object location based security using RFID 未知

    公开(公告)号：AU2005292439A1

    公开(公告)日：2006-04-13

    申请号：AU2005292439

    申请日：2005-09-14

    Applicant: SYMBOL TECHNOLOGIES INC

    Inventor： BRIDGELALL RAJ ,  KNOX MICHAEL

    IPC: H04L12/56 ,  G06K19/077

    Abstract: A system and method for controlling access to a wireless networking system using RFID tags is provided. The security system and method uses RFID tags to determine the location of mobile computing device. The security system and method selectively allows access to the wireless networking system based on the determined location of the mobile computing device. For example, the security system and method will permit access to the wireless networking system if the mobile computing device is determined to be in an area of permitted access. Conversely, the security system and method will deny access to the wireless networking system if the mobile computing device is determined to be not within an area of permitted access. Thus, the system and method is able to effectively control access to the wireless networking system by only permitting access to mobile devices within designated areas.

    SYSTEM AND A NODE USED IN THE SYSTEM FOR WIRELESS COMMUNICATION AND SENSORY MONITORING
    37.
    发明专利
    SYSTEM AND A NODE USED IN THE SYSTEM FOR WIRELESS COMMUNICATION AND SENSORY MONITORING 未知

    公开(公告)号：CA2551480A1

    公开(公告)日：2005-07-21

    申请号：CA2551480

    申请日：2004-12-09

    Applicant: SYMBOL TECHNOLOGIES INC

    Inventor： BRIDGELALL RAJ

    IPC: H04L12/56 ,  H01Q1/00 ,  H04L12/26 ,  H04L12/28 ,  H04L29/08

    Abstract: A system is provided for communication and sensory monitoring. The system comprises a plurality of nodes installed as a network in a structure. Each o f the plurality of nodes comprises an internode transceiver for wireless communication between nodes, a wireless network transceiver for wireless communication with one or more wireless devices, one or more sensors for monitoring the environment of the structure and a processor coupled to the internode transceiver, the wireless network transceiver and the one or more sensors to exchange data with the internode transceiver, the wireless networ k transceiver and the one or more sensors devices coupled to the processor and process the data. The system also includes a wide area network bridge couple d to the plurality of network nodes. The network bridge receives data from the plurality of network nodes and passes the information to a computer network for processing.

    SYSTEM AND METHOD FOR TRACKING DATA RELATED TO CONTAINERS USING RF TECHNOLOGY
    39.
    发明专利
    SYSTEM AND METHOD FOR TRACKING DATA RELATED TO CONTAINERS USING RF TECHNOLOGY 未知

    公开(公告)号：CA2543864A1

    公开(公告)日：2005-06-09

    申请号：CA2543864

    申请日：2004-10-22

    Applicant: SYMBOL TECHNOLOGIES INC

    Inventor： NUDELMAN AVI ,  BRIDGELALL RAJ ,  CHARYCH HAL

    IPC: G01V15/00 ,  B65D19/38 ,  G01V3/00 ,  G01V3/36 ,  G06F20060101 ,  G06K17/00 ,  H04Q7/20

    Abstract: Described are RF tracking system and method. The RF system may include a shell for holding a plurality of containers which store a material that interferes with RF communications. The shell includes a bottom container supporting surface and a plurality of leg extensions attached thereto; the shell extends away from the bottom surface. The tracking system also includes at least one RF tag attached to a first one of the leg extensions. The tag has a memory arrangement storing data relating to at least one of an identity of the shell, an identity of the containers held in the shell and a material stored in the containers. Furthermore, the tracking system includes at least one RF scanner communicating with the tag to collect the data and a computing arrangement which includes a database and communicating with the scanner to update the database as a function of the collected data. The tag is situated at a predetermined distance away from the containers held in the shell to overcome an electromagnetic dampening effect of the material.

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