中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

7940 records (took 0.034 seconds)

    DC HIGH POWER DISTRIBUTION ASSEMBLY
    71.
    发明公开
    DC HIGH POWER DISTRIBUTION ASSEMBLY 审中-公开
    HIGH-DC分配装置，

    公开(公告)号：EP2106630A2

    公开(公告)日：2009-10-07

    申请号：EP08724499.2

    申请日：2008-01-11

    Applicant: Lucent Technologies INC.

    Inventor： EVANS, Glen, Allen ,  GRABOWSKI, Richard, Michael

    IPC: H02H9/00

    CPC classification number: H02H9/001

    Abstract: A DC high power distribution system provides power to a load in parallel with one or more storage capacitors. The system includes a hot-swap controller and an array (24) of parallel-connected transistors connected in series between a DC source and the capacitors/load. A power contactor (28) is connected in parallel to the transistor array, both of which are connected to control outputs of the controller. The controller monitors various circuit conditions of interest, such as input over- voltage, input under- voltage, and over- current. If the circuit conditions meet designated parameters, the controller activates the transistors for charging the capacitors, for limiting inrush current. After charging, the controller activates the power contactor for shunting the transistors 'and carrying the 150+ ampere current during ongoing operation. If any of the monitored circuit conditions fail to meet designated parameters, the controller halts operation of the circuit by deactivating the power contactor and/or transistors.

    HIGH-SPEED SEMICONDUCTOR-WAVEGUIDE OPTICAL PHASE SHIFTER
    72.
    发明授权
    HIGH-SPEED SEMICONDUCTOR-WAVEGUIDE OPTICAL PHASE SHIFTER 有权
    与半导体光纤INTENDED HIGH SPEED相SLIDE

    公开(公告)号：EP1782123B1

    公开(公告)日：2009-09-30

    申请号：EP05809935.9

    申请日：2005-08-16

    Applicant: LUCENT TECHNOLOGIES INC.

    Inventor： GILL, Douglas, M ,  MADSEN, Christi, K ,  RAFFERTY, Conor S.

    IPC: G02F1/025

    CPC classification number: G02F1/025 ,  G02F2001/0153

    Abstract: An optical phase shifter (100) comprises a semiconductor waveguide (105) includes a core region (116) and a doped region (115a, 115b) containing free charges (electrons or holes), which can be steered into or removed from the wave guide, where an optical beam (150) propagates. A semiconductor structure (PN junction 112, 114) allows the control of the amount of free charges in the doped region, which constitutes a potential well. When the well is filled, the charges speed the beam propagation, introducing a phase change. When the well is emptied, (under application of a reverse bias to the junction 112, 114), the beam propagates with extra delay. The phase shifter allows very high speed modulation of the beam using low voltage and low power electronics. The device can be created using standard silicon processing techniques, and integrated with other optical components such as splitters and combiners to create amplitude modulators, attenuators and other optical devices.

    METHOD AND APPARATUS FOR IMPROVED MULTICAST ROUTING
    77.
    发明公开
    METHOD AND APPARATUS FOR IMPROVED MULTICAST ROUTING 有权
    用于实现多播路由的方法和装置

    公开(公告)号：EP2100406A2

    公开(公告)日：2009-09-16

    申请号：EP07867874.5

    申请日：2007-12-19

    Applicant: LUCENT TECHNOLOGIES INC.

    Inventor： HEER, Arie, Johannes

    IPC: H04L12/18 ,  H04L12/56 ,  H04L29/12

    CPC classification number: H04L12/18 ,  H04L29/12783 ,  H04L29/12801 ,  H04L61/35 ,  H04L61/6004

    Abstract: The invention includes a method and apparatus for transmitting packets in a network (100) comprising a plurality of nodes (110). A method includes encapsulating a packet intended for at least one of the nodes (110) where the packet is encapsulated using a bit set, comparing the bit set of the packet and a bit mask of an interface/ and forwarding the packet over the interface in response to a determination that the comparison of the bit set and the bit mask indicates that one of the nodes (110) for which the packet is intended is the same as one of the nodes available from the interface. The bit set and bit mask each include bit positions associated with the respective plurality of nodes. The bit positions of the bit set and bit mask identify each of the at least one of the nodes for which the packet is intended and each of the nodes (110) available from the interface, respectively.

    DELIVERY OF SUBSCRIPTION SERVICES TO ROAMING USERS THROUGH HEAD END EQUIPMENT
    79.
    发明授权
    DELIVERY OF SUBSCRIPTION SERVICES TO ROAMING USERS THROUGH HEAD END EQUIPMENT 有权
    订阅服务供应漫游用户通过网关

    公开(公告)号：EP2005745B1

    公开(公告)日：2009-09-16

    申请号：EP07754614.1

    申请日：2007-03-30

    Applicant: LUCENT TECHNOLOGIES INC.

    Inventor： ACHARYA, Swarup ,  GUPTA, Bhawna ,  SRIVASTAVA, Anurag

    IPC: H04N7/173

    CPC classification number: H04N7/17318 ,  H04N21/218 ,  H04N21/2221 ,  H04N21/4383 ,  H04N21/47202 ,  H04N21/6408 ,  H04N21/643 ,  H04N21/6433

    Abstract: A subscriber or other user is provided with access to a subscription service of a signal distribution system at a location remote from a home location of the user. The subscription service comprises a plurality of selectable channels available to the user at the home location. The user is assigned one of a plurality of program streams utilizable for delivery of content from the head end equipment servicing the remote location to an interface device at the remote location. By way of example, the program streams may be part of existing unicast infrastructure in the head end equipment. The head end equipment obtains content for a first channel of the subscription service available to the user at the home location, and inserts the content for the first channel into the assigned program stream to thereby make that content accessible to the user at the remote location via the interface device. User selection via the remote location interface device of a different channel of the subscription service available to the user at the home location causes the content for the different channel to be obtained by the head end equipment and inserted into the assigned program stream in place of the content for the first channel.

    METHOD OF PROVIDING BROADCAST/MULTICAST DATA IN A WIRELESS NETWORK
    80.
    发明公开
    METHOD OF PROVIDING BROADCAST/MULTICAST DATA IN A WIRELESS NETWORK 审中-公开
    方法用于提供广播/多播数据在无线网络

    公开(公告)号：EP2098083A2

    公开(公告)日：2009-09-09

    申请号：EP07863015.9

    申请日：2007-12-17

    Applicant: LUCENT TECHNOLOGIES INC.

    Inventor： BOSCH, Peter ,  GALONSKA, Johann ,  MULLENDER, Sape, Jurrien

    IPC: H04Q7/22

    CPC classification number: H04J13/0003 ,  H04J13/16 ,  H04W4/06 ,  H04W72/005

    Abstract: In one embodiment, a dedicated channel (e.g., is a coded composite transport channel) is configured for each user equipment in a broadcast group based on a first spreading code and a second spreading code. A same first spreading code is assigned to each user equipment in the broadcast group, and the second spreading code is assigned uniquely to each user equipment in the broadcast group. In another embodiment, a transport format combination set is generated for each user equipment in a broadcast group of user equipment. Each transport format combination set indicates valid transport formats for the associated user equipment, and each transport format combination set is configured to support selectively broadcasting and uni-casting over dedicated channels to the broadcast group of user equipment.

Patent Agency Ranking