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公开(公告)号：JP2002344389A
公开(公告)日：2002-11-29
申请号：JP2002070749
申请日：2002-03-14
Applicant: LUCENT TECHNOLOGIES INC
IPC: H01S5/024 , H01S5/062 , H01S5/0687 , H04B10/00 , H04B10/04 , H04B10/06 , H04B10/14 , H04B10/155
Abstract: PROBLEM TO BE SOLVED: To provide an RZ pulse source which has high power and is jitter-free, compact (inexpensive) and power efficient. SOLUTION: The modulated RZ pulse source has a modulated light source optically and a optical trap coupled to a stabilized Bragg grating filter. The light source is modulated in power and frequency, and has an adjusted channel wavelength λ. The Bragg grating filter has a reflective bandwidth having a high slope reflective cutoff, and is preferably tunable. By a feedback arrangement responsive to the taps, the source channel wavelength λ is kept on the edge of the reflective bandwidth and RZ pulses are shaped. When the Bragg grating is stabilized, the feedback system maintains λ at a value linked to the grating reflective edge, and converts the light source modulated by overlapping at least one part of the optical spectrum of the source, into RZ pulses with high extinction ratio.
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公开(公告)号：JP2002335238A
公开(公告)日：2002-11-22
申请号：JP2002083199
申请日：2002-03-25
Applicant: LUCENT TECHNOLOGIES INC
Inventor： MACKENZIE PHILIP D
IPC: H04L9/08
Abstract: PROBLEM TO BE SOLVED: To provide a secure password-only mutual network authentication protocol which is provably secure. SOLUTION: Between two parties A and B sharing a password through a data network, a shared secret key g is generated by using Diffie-Hellman type key exchange concerning a specified group. In such a case, (g) is a group generator known by both the parties, (x) is an index known to one party (client, for example) A and (y) is an index known to the other party (server, for example) B. The party A generates a parameter (m) by applying group operation to g and a function H1 of the password at least and transmits (m) to the party B. In the result of the function H1 , the part outside the group is made random. Thus, the person B applies inverse group operation to be (m) and the function H1 , extracts g by removing the randomization of any portion outside the group in the result of the function H1 and further can calculate the shared secret g .
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23.发明专利
公开(公告)号：JP2002323683A
公开(公告)日：2002-11-08
申请号：JP2002053544
申请日：2002-02-28
Applicant: LUCENT TECHNOLOGIES INC
Inventor： DOERR CHRISTOPHER RICHARD
Abstract: PROBLEM TO BE SOLVED: To provide a method/device for filtering an input wavelength-division multiplexed(WDM) signal comprised of N wavelength channels. SOLUTION: A wavelength blocker has a demultiplexer for generating a plurality of demultiplexed output signals from the input WDM signal, and a multiplexer for generating an output WDM signal. In addition, each of the N wavelength channels is selectively passed using a shutter array consisting of a plurality of shutters. In one embodiment of this invention, the demultiplexer is coupled to the multiplexer using a plurality of waveguides having approximately equal length, in order to reduce multipath interference.
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公开(公告)号：JP2002320034A
公开(公告)日：2002-10-31
申请号：JP2002052815
申请日：2002-02-28
Applicant: LUCENT TECHNOLOGIES INC
Inventor： CAI YIGANG , HUA SHIYAN
Abstract: PROBLEM TO BE SOLVED: To provide a system that allows a subscriber to screen telephone calls from opposite parties selected by the subscriber so as to be troubled by other phone call. SOLUTION: This invention provides, in a Public Switched Telephone Network(PSTN), the method at least including the steps of connecting a subscriber's telephone line to an Internet Service Provider ISP, while the subscriber's telephone line is connected to the ISP, disabling an Internet Call Waiting(ICW) server, and when a telephone call is placed to the subscriber's telephone line, ascertaining whether a calling party has input a subscriber- defined access code. The method also at least includes the steps of connecting the calling party to the ICW server and enabling it, if the calling party has input the access code, not connecting the calling party to the ICW server if the calling party has not input the access code, and via the enabled ICW server, displaying caller identification information to the subscriber when a call has been connected to the ICW server to allow the subscriber to cause the call to be connected, or ignore the call.
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公开(公告)号：JP2002319931A
公开(公告)日：2002-10-31
申请号：JP2002033471
申请日：2002-02-12
Applicant: LUCENT TECHNOLOGIES INC
Inventor： BJORN MARKUS
Abstract: PROBLEM TO BE SOLVED: To provide technology and a device for encrypting information with a system for providing an escrow guarantee. SOLUTION: According to one aspect of this invention, a message is encrypted and an authority proof indicating that encrypted message is the message of a type permitted to be decrypted by a single or a plurality of escrow authorities is related to the corresponding message. Each of at least one part of sets of servers belonging to a network is integrated with a module for checking the authority proof when passing the corresponding encrypted message through the corresponding server. Therefore, concerning the encrypted message, the authority proof related thereto is checked by the designated check module in at least one server inside the relevant network when that encrypted message is transmitted through the network.
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Patent Agency Ranking26.发明专利
公开(公告)号：JP2002317294A
公开(公告)日：2002-10-31
申请号：JP2002107478
申请日：2002-04-10
Applicant: LUCENT TECHNOLOGIES INC
Inventor： ABYS JOSEPH ANTHONY , BOGUSLAVSKY IRINA , STRASCHIL HEINRICH K
IPC: C25D3/56
Abstract: PROBLEM TO BE SOLVED: To provide an aqueous electroplating bath for electroplating of a palladium alloy in a mixed ligand system. SOLUTION: The first ligand forms a complex of palladium and the second ligand forms a complex of another metal, functioning to make the plating potentials of the two metals to proximate values. The palladium and the alloy metals exist as the complexes in different structures.
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公开(公告)号：JP2002314093A
公开(公告)日：2002-10-25
申请号：JP2002043700
申请日：2002-02-20
Applicant: LUCENT TECHNOLOGIES INC
Inventor： KIRK WILLIAM , BAO ZHENAN , MACH PETER , ROGERS JOHN A
IPC: H01L21/316 , H01L21/318 , H01L29/786 , H01L51/00 , H01L51/05 , H01L51/10 , H01L51/30 , H01L51/40 , H01L51/52
Abstract: PROBLEM TO BE SOLVED: To provide an encapsulation material which can be deposited at a lower temperature and provides required encapsulation characteristics. SOLUTION: A method for encapsulating semiconductor devices includes a step in which an encapsulation material is deposited on a semiconductor device in such an environment as to enhance the performance of the semiconductor device. The encapsulation material is selected from a group of materials including an inorganic dielectric material, organic-inorganic composite material, inorganic polymer, silicon polymer, encapsulation material of laminated metal polymer, and multiplayer structures of any of these materials. The encapsulation material is deposited using a gas flow composed of silane and nitrogen and an ammonia gas flow. More specifically, the encapsulation material is SiOx and SiNx (X is between 0.1 and 10 inclusive).
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公开(公告)号：JP2002296437A
公开(公告)日：2002-10-09
申请号：JP2002075447
申请日：2002-03-19
Applicant: LUCENT TECHNOLOGIES INC
Inventor： ESSIAMBRE RENE-JEAN , MIKKELSEN BENNY
Abstract: PROBLEM TO BE SOLVED: To transmit a signal even when neighboring pulses from the same channel overlap within each span caused by the effect of the high-dispersion of a transmission fiber in a high-speed system. SOLUTION: A high speed and high capacity digital pulse transmission system, i.e., at least 10 Gb/s at a duty-free of at least 10%, which uses a transmission fiber with a dispersion value greater than 20 ps/(nm-km) or more negative than -5 ps/(nm-km), is operated in a pseudo-linear transmission mode(PLTM), thereby decreases pulse distortion, i.e., eye closure penalty as the dispersion value increases. Then, system performance is improved by increasing the value of absolute dispersion of the transmission fiber.
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公开(公告)号：JP2002290332A
公开(公告)日：2002-10-04
申请号：JP2002012098
申请日：2002-01-21
Applicant: LUCENT TECHNOLOGIES INC
Inventor： DU MEI , NIELSEN TORBEN N , ROTTWITT KARSTEN , STENTZ ANDREW J
IPC: G02F1/35 , H01S3/067 , H01S3/094 , H01S3/10 , H01S3/30 , H04B10/02 , H04B10/17 , H04B10/18 , H04J14/00 , H04J14/02
Abstract: PROBLEM TO BE SOLVED: To provide a WDM optical transmission system using high co- propagating Raman amplification. SOLUTION: The user of a co-propagating fiber Raman amplifier in an optical WDM transmission system has been found to be practical in the situation where the fiber amplifier is operated into depletion and the characteristics of the input signals are controlled to exhibit a reduced integrated relative intensity noise (RIN) over the fiber crosstalk bandwidth. In particular, the reduction in the integrated RIN can be achieved by increasing the number of input channels (by adding more messages or simply using dummy channels), encoding the data in a particular fashion to reduced the integrated RIN, or decorrelating the plurality of N input signals below a predetermined, relatively low frequency (for example, 2 MHz).
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公开(公告)号：JP2002280826A
公开(公告)日：2002-09-27
申请号：JP2002002049
申请日：2002-01-09
Applicant: LUCENT TECHNOLOGIES INC
Inventor： MOUSTAKAS ARIS L , SAFAR HUGO F , SIMON STEVEN H , STOYTCHEV MARIN
Abstract: PROBLEM TO BE SOLVED: To provide a wireless communications device including a small-sized antenna cluster for simultaneously transmitting and/or receiving signals. SOLUTION: The wireless communications device 700 comprises at least a signal processing device 702 coupled to a cluster (704) of multiple port antennas (antennas provided with many ports). The cluster of antennas operates within a frequency band having a maximum frequency (f), and at least a pair of the antenna ports 706, 708, 710, 712 is placed in a volume of space whose longest linear dimension is λ/3 or less where λ is equal to c/f (c is the velocity of light in vacuum). During operation of the antenna cluster 704, the radiation patterns from different antennas have main lobes that point in different directions and have correlations of 0.7 or less with respect to each other.
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