中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

2639 records (took 0.029 seconds)

    RE-MULTIPLIER FOR CODED AUDIO VIDEO STREAM
    54.
    发明专利
    RE-MULTIPLIER FOR CODED AUDIO VIDEO STREAM 失效

    公开(公告)号：JP2001016228A

    公开(公告)日：2001-01-19

    申请号：JP2000141819

    申请日：2000-05-15

    Applicant: CSELT CENTRO STUDI LAB TELECOM ,  ITALTEL SPA ,  SIEMENS INF & COMM NETWORKS

    Inventor： MONTANARO ACHILLE ,  MORI LUIGI ,  PILATI LUCIANO ,  TUROLLA MAURA

    IPC: H04N7/08 ,  H04H20/00 ,  H04J3/00 ,  H04L12/54 ,  H04L12/70 ,  H04N7/081 ,  H04N7/24 ,  H04L12/28 ,  H04H1/00

    Abstract: PROBLEM TO BE SOLVED: To provide a multiplexer that transfers an MPEG multi-program transfer stream to an ATM virtual channel and multiplexes the virtual channel on a virtual path. SOLUTION: A syntax analysis section AS receives a plurality of streams and separates data packets in each stream from service packets. The data packet is directly transferred to a means to generate an output stream, that is, an output stream generator CF and also sent to a processing/controller MP. The processing/controller MP conducts processing and especially updates service information and returns a synthesized output stream. The output stream generator CF generates a single program output stream or a multi-program stream at a frequency band lower than that of the input stream and sends it to a service user. The output stream is obtained by beginning from the packet stored in a temporal storage means that is a memory device ME and the service packet that is processed and set to the virtual ATM channel.

    INFORMATION RETRIEVAL MEMORY BY PREFIX ANALYSIS FOR BUILDING-UP ROUTING TABLE OF NODE FOR HIGH SPEED COMMUNICATION NETWORK SUCH AS INTERNET
    55.
    发明专利
    INFORMATION RETRIEVAL MEMORY BY PREFIX ANALYSIS FOR BUILDING-UP ROUTING TABLE OF NODE FOR HIGH SPEED COMMUNICATION NETWORK SUCH AS INTERNET 失效

    公开(公告)号：JP2000151691A

    公开(公告)日：2000-05-30

    申请号：JP30415999

    申请日：1999-10-26

    Applicant: CSELT CENTRO STUDI LAB TELECOM

    Inventor： FILIPPI ENRICA ,  INNOCENTI VIVIANA

    IPC: H04L12/701 ,  H04L12/741 ,  H04L12/933 ,  H04L12/935 ,  H04L12/56

    Abstract: PROBLEM TO BE SOLVED: To provide a memory structure that ensures incremental update of a routing table and optimum utilizing of a physical memory. SOLUTION: A memory to retrieve information by a prefix analysis in order to build up a routing table for a node of a high speed communication network such as the Internet especially includes a memory element M1 that stores one set of information items and each of the information items relates to mask information and target information denoting a number of important characters in respective prefixes. In order to realize a retrieval reference based on coincidence of a longest prefix, each cell includes an information field to provide an address of a succeeding line for consecutive retrieval or an arrived target and a couple of flags specifying contents of the information field. An auxiliary vector AUX includes cells of the same number as memory lines and when a flag in a cell of the memory element indicates necessity for retrieval of a succeeding line and read of the target, the target information is stored in a cell relating to the succeeding line.

    REACTOR FOR CHEMICAL VAPOR DEPOSITION
    57.
    发明专利
    REACTOR FOR CHEMICAL VAPOR DEPOSITION 失效

    公开(公告)号：JPH11260739A

    公开(公告)日：1999-09-24

    申请号：JP37586298

    申请日：1998-12-21

    Applicant: CSELT CENTRO STUDI LAB TELECOM

    Inventor： BERTONE DANIELE

    IPC: C23C16/44 ,  C23C16/455 ,  C23C16/458 ,  C23C16/48 ,  H01L21/205

    Abstract: PROBLEM TO BE SOLVED: To provide a reactor for chemical vapor deposition in which a deposition process can be attained by a controlled method. SOLUTION: A substrate W to be deposited is held at a substantially vertical position, relative movement is applied to a nozzle 26, and a reactor having therein a gas for carriage of deposition reactive material is provided. Preferably the reactor has a generally cylindrical shape, the substrate W is placed on a carousel structure 7 rotating around a main axis X8, the main axis X8 coinciding with a main axis of a case of the reactor. Diffusion of the carrier gas and reactive material starts from a head 11 projected from an arch ceilling of the case of the reactor and extended into the carousel structure 7 having the substrate W placed thereon. The head 11, which has a plurality of nozzles 26 uniformly distributed along its circumference, ejects the carrier gas and reactive material. The deposition is applied preferably to the deposition of semiconductor starting with vapor phase metal/organic compound, and in particular, to integrated optics.

    METHOD AND EQUIPMENT FOR MEASURING KERR NONLINEARITY COEFFICIENT OF SINGLE-MODE OPTICAL FIBER
    58.
    发明专利
    METHOD AND EQUIPMENT FOR MEASURING KERR NONLINEARITY COEFFICIENT OF SINGLE-MODE OPTICAL FIBER 失效

    公开(公告)号：JPH08285729A

    公开(公告)日：1996-11-01

    申请号：JP11522596

    申请日：1996-04-15

    Applicant: CSELT CENTRO STUDI LAB TELECOM

    Inventor： MATSUSHIIMO ARUTEIGURIA ,  ERUNESUTO CHIYARAMERA ,  BURUUNO SORUDO

    IPC: G01M11/02 ,  G01M11/00

    Abstract: PROBLEM TO BE SOLVED: To provide a method and device for accurately measuring the Kerr non-linearity coefficient by utilizing dispersion introduced to a fiber. SOLUTION: A rectangular pulse train is sent to a fiber 5. The pulls have a wavelength where the fiber 5 operates under abnormal dispersion conditions, a peak power for causing modulation instability in the fiber 5, and the ratio of a life time where an average power is lower than a threshold for generating a stimulated brilliance effect to a repetition period The maximum value of an instability gain is measured from a pulse spectrum from the fiber 5 and the Kerr non-linearity coefficient is obtained from the maximum measurement value of the modulation instability gain by minimizing an error for a theoretical curve where such maximum gain is expressed as a function of peak power.

    METHOD AND EQUIPMENT FOR MEASURING REFRACTIVE INDEX OF WAFERCOMPRISING GLASS SUBSTANCE
    59.
    发明专利
    METHOD AND EQUIPMENT FOR MEASURING REFRACTIVE INDEX OF WAFERCOMPRISING GLASS SUBSTANCE 失效

    公开(公告)号：JPH08285725A

    公开(公告)日：1996-11-01

    申请号：JP10873296

    申请日：1996-04-05

    Applicant: CSELT CENTRO STUDI LAB TELECOM

    Inventor： RUIJI TAROONE

    IPC: G01N21/21 ,  G01M11/00 ,  G01N21/41 ,  G01N21/45 ,  G01N21/59

    Abstract: PROBLEM TO BE SOLVED: To provide a method and device for measuring a refractive index by utilizing multiple reflection in a sample. SOLUTION: Light beams are sent to a wafer 4 at different incidence angles and the transmittance of the wafer changes as the incidence angle changes due to the interference caused by the multiple reflection of beams in the wafer 4. An angle position where the transmittance is maximized and minimized is obtained for the maximum or minimum value corresponding to a normal incidence. The refractive index is obtained from the angle positions and the number of maximum and minimum values at different angles. Also, a device for implementing this method is given.

    METHOD FOR EXECUTION SPEEDUP OF NEURAL NETWORK FOR CORRELATION SIGNAL PROCESSING
    60.
    发明专利
    METHOD FOR EXECUTION SPEEDUP OF NEURAL NETWORK FOR CORRELATION SIGNAL PROCESSING 失效

    公开(公告)号：JPH08272759A

    公开(公告)日：1996-10-18

    申请号：JP9174596

    申请日：1996-03-22

    Applicant: CSELT CENTRO STUDI LAB TELECOM

    Inventor： DARIO ARUBESANO ,  ROBERUTO JIEMERO ,  FURANKO MANA

    IPC: G06F15/18 ,  G06N3/04 ,  G06N3/063 ,  G06N3/08

    Abstract: PROBLEM TO BE SOLVED: To provide a method for increasing an execution speed of a neural network for a correlation signal. SOLUTION: By this method, an execution speed can be upped in most of a neural network to process input signals, e.g. a voice, radar, sonar, a video signal, etc., which temporally and slowly change, and furthermore, a specialized, expensive hardware or one that is hard to acquire is not needed. In the method, activation value is stored at one time and the activation value is requested to compare with value which is counted at the next time for a neuron (i) on at least one level of the network. When the activation value is equal, the neuron (i) does not act and when it is not, what difference of the activation value is multiplied by link weight Wij is transferred to connected neuron j.

Patent Agency Ranking