公开(公告)号：JP2001298005A

公开(公告)日：2001-10-26

申请号：JP2001058124

申请日：2001-03-02

Applicant: LUCENT TECHNOLOGIES INC

Inventor： SADOHANSHU MISURA ,  MERCHANT SAILESH MANSINH ,  ROY PRADIP K

IPC: B24B37/04 ,  C09G1/02 ,  C09K3/14 ,  H01L21/304 ,  H01L21/3205 ,  B24B37/00

Abstract: PROBLEM TO BE SOLVED: To provide a method by which a residual released material can be removed in such a way that pad adjustment is not required after chemical mechanical polishing. SOLUTION: This method for polishing the surface of an integrated circuit comprises a step of feeding colloidal slurry (6) having released particles containing a magnesium compound onto the surface of the integrated circuit, a step of polishing the surface by means of a polishing device, and a step of cleaning the surface with a solvent which reacts with the magnesium compound. In the cleaning step, the particles produced as a result of the polishing and the colloidal slurry are removed by forming a water-soluble salt through the reaction.

公开(公告)号：JP2001292483A

公开(公告)日：2001-10-19

申请号：JP2001036936

申请日：2001-02-14

Applicant: LUCENT TECHNOLOGIES INC

Inventor： FARUK MEHMET ,  WU JIAN JUN ,  YAN RAN-HONG

IPC: H04N7/26 ,  H04B7/00 ,  H04L1/00 ,  H04L12/28 ,  H04L29/06 ,  H04L29/08 ,  H04N7/08 ,  H04N7/081 ,  H04N7/24 ,  H04W28/22 ,  H04Q7/38

Abstract: PROBLEM TO BE SOLVED: To provide a method and device for coding a video data stream that a mobile communication system can efficiently transmit the video data stream. SOLUTION: The method and device for coding a video data stream in the GPRS, EDGE or UMTS system and performing a real time video service includes a step where one of a small number, e.g. 4 channel coding rates applicable to video in a prescribed way is selected, a step where the rate is applied to video data in the application layer, and a step where the data are transmitted to a mobile system via a wireless interface together with a header and a temporary flow indicator denoting the selected coding rate. Employing a short header can increase the video payload capacity. One of the prescribed channel coding rates is a 1/1 rate, that is, a transparent rate.

公开(公告)号：JP2001292186A

公开(公告)日：2001-10-19

申请号：JP2001056416

申请日：2001-03-01

Applicant: LUCENT TECHNOLOGIES INC

Inventor： LEONARD ERIC DAVID ,  THOMSON DAVID J

IPC: H04L27/18 ,  H04B7/212 ,  H04L27/00

Abstract: PROBLEM TO BE SOLVED: To use the same hardware component in operation in a TDMA mode and an analog mode. SOLUTION: In transmission in the analog mode, a processor 40 encodes the digital expression of a signal to be transmitted, FM-modulates it to an I-Q pair and outputs it to a digital analog converter(DAC) 31. The DAC 31 converts a digital I-Q pair to an analog signal and outputs it to an I-Q cosign wave generator 32 which generates a common-phase cosine wave and an orthogonal cosine wave having amplitude respectively proportional to the values of I and Q. These consine waves are added for transmission by radio. In the case of receiving in the analog mode, a frequency converter down-converts a received radio frequency(RF) to an intermediate frequency(IF). A digital down converter converts the received signal into digital I value and Q value and outputs them to a processor.

公开(公告)号：JP2001290089A

公开(公告)日：2001-10-19

申请号：JP2001036355

申请日：2001-02-14

Applicant: LUCENT TECHNOLOGIES INC

Inventor： LIOU KANG-YIH

IPC: G02B26/00 ,  G01J3/26 ,  G02B5/26 ,  G02B5/28 ,  G02B6/34 ,  G02B6/35 ,  H04B10/02 ,  H04B10/43 ,  H04B10/28

Abstract: PROBLEM TO BE SOLVED: To realize reduction in data loss and improvement in bandwidth efficiency when tuning by incorporating a hitless tunable optical filter in an optical add/drop device. SOLUTION: The hitless wavelength-tunable optical filter is provided with a broadband reflective region and a tunable filter region, and a reflective surface and a filter surface are positioned adjacent to each other. Hitless tuning of the device is accomplished by changing (moving) a point from which an optical beam is made incident on the filter region along a constant wavelength channel track whenever the optical beam strikes the filter region of the device. Realignment (moving) to a position related to a new wavelength channel track is performed in a state where the optical beam strikes the broadband reflective region. First, the optical beam is moved to a position corresponding to the new wavelength to be added/dropped on the filter region (in the broadband reflective region), subsequently the optical beam is realigned (moved) along the new wavelength channel track within the filter region.

公开(公告)号：JP2001285363A

公开(公告)日：2001-10-12

申请号：JP2001071621

申请日：2001-03-14

Applicant: LUCENT TECHNOLOGIES INC

Inventor： KUMARAN KRISHNAN ,  JEFFREY EDMOND MAAGUREEBU ,  MITRA DEBASIS ,  KEITH R STANLEY

IPC: H04L12/56 ,  H04Q11/04

Abstract: PROBLEM TO BE SOLVED: To effectively manage a communication network that supports quality of a plurality of services(QoS) using generalized processor sharing(GPS) scheduler. SOLUTION: An arbitrary number of QoS service classes become available to an arbitrary number of connection classes on a common trunk. In an embodiment, an overall activity is modeled using a central-limit approximation based on a central-limit theorem. Performance of the GPS scheduler is dominated by importance of scheduling associated with an individual connection. The selection of importance for given connection is formulated as a nonlinear algebraic equation system. In another embodiment, Chernoff approximation is similarly applied. The present invention is applicable to dual leaky bucket regulated(DLBR) connection in the worst case.

公开(公告)号：JP2001285198A

公开(公告)日：2001-10-12

申请号：JP2001058123

申请日：2001-03-02

Applicant: LUCENT TECHNOLOGIES INC

Inventor： BRENER IGAL M ,  MIKKELSEN BENNY ,  ROTTWITT KARSTEN ,  STARK JASON BLAIN

IPC: G02F1/35 ,  H01S3/06 ,  H01S3/10 ,  H01S3/30 ,  H04B10/02 ,  H04B10/17 ,  H04B10/18 ,  H04B10/29 ,  H04B10/16

Abstract: PROBLEM TO BE SOLVED: To solve a problem of nonlinearity of fibers in a long distance communication system. SOLUTION: The optical transmission system of this invention in a system employing an optical fiber optical path (especially in a system where a DWDM is used to transmit a power signal with a comparatively high level is sent to a low scattering fiber) is formed to have an optical phase conjugation unit 200 at its alternate iteration site and minimizes the presence of nonlinearity resulting from 4-wave mixing and other Kerr effect. Each fiber span 160 includes a Raman gain to realize 'absorption of negative components' along the length of the fiber 160 thereby realizing a substantially symmetrical power distribution along the length of each span. Then the presence of the symmetrical power distribution at each side face of the optical phase conjugation unit 200 can remarkably enhance the performance.

公开(公告)号：JP2001284694A

公开(公告)日：2001-10-12

申请号：JP2001077666

申请日：2001-03-19

Applicant: LUCENT TECHNOLOGIES INC

Inventor： BYLSMA RICHARD BENDICKS ,  RINAUDO DOMINIC PAUL ,  SHAKESPEARE WALTER JEFFREY

IPC: G02B6/42 ,  G02B6/43 ,  G02B27/10 ,  G02B27/14 ,  H01S5/022

Abstract: PROBLEM TO BE SOLVED: To provide a protruding/retracting pin optical tap on an optical sub-assembly for transmitting a laser beam signal generated from one laser beam source to a plurality of optical elements disposed at different distances from the source. SOLUTION: An apparatus and a method for supplying individual laser beam signals supplied from one laser beam source to the plurality of optical elements use a base for a first optical element. Thus, a part of the signals supplied from the one source is received by the first element. The residue of the signals is propagated over the first element, and received by the second optical element. The obtained individual signals are constituted without using a beam splitter.

公开(公告)号：JP2001282758A

公开(公告)日：2001-10-12

申请号：JP2001038012

申请日：2001-02-15

Applicant: LUCENT TECHNOLOGIES INC

Inventor： HARTUNG JOHN

IPC: G06F15/177 ,  G06F9/445 ,  G06F13/38 ,  G06F15/16 ,  G06F15/17

Abstract: PROBLEM TO BE SOLVED: To provide a method and a device for controlling plural processors in a multiprocessor computer system while using a serial chain configuration. SOLUTION: Serially interconnected buses form a daisy chain among plural processors and inside the serial chain, data are transferred from a master processor(MP) to a slave processor(SP). The MP has a non-volatile/volatile storage device and the SP has only a volatile storage device. Continuously to start-up or reset the system, a program and data required for each processor are transferred from the non-volatile storage device of the MP to a specified area in the volatile storage area of the SP of the daisy chain by a sequential serial transfer system. An instruction is prepared for processing and controlling the execution of the SP. A protocol for program or data transfer contains a transfer count and reduces an overhead related to transfer.

公开(公告)号：JP2001274905A

公开(公告)日：2001-10-05

申请号：JP2001053268

申请日：2001-02-28

Applicant: LUCENT TECHNOLOGIES INC

Inventor： GANESH TINNIAM VENKATARAMAN

IPC: H04M3/36 ,  H04L12/28 ,  H04M3/00 ,  H04Q3/00

Abstract: PROBLEM TO BE SOLVED: To provide a method and a device for dynamically managing traffic for intelligent network(IN) system. SOLUTION: The dynamic real time traffic monitoring of SSP by SCP in IN is supplied without a manual operation by a communication system engineer. A traffic management result is moved from a switch to an intelligent network node and the spirit of an intelligent network is supported by the result.

公开(公告)号：JP2001274755A

公开(公告)日：2001-10-05

申请号：JP2001051336

申请日：2001-02-27

Applicant: LUCENT TECHNOLOGIES INC

Inventor： DENKIN NATHAN MYRON ,  FEULNER MATTHIAS RICHARD ,  MA JIONG ,  WERNER DIETER ,  ZHU MING JUAN

IPC: H01S3/10 ,  H01S3/06 ,  H04B10/02 ,  H04B10/17 ,  H04B10/18 ,  H04B10/29 ,  H04J14/00 ,  H04J14/02 ,  H04B10/16

Abstract: PROBLEM TO BE SOLVED: To provide a system and a method for controlling reactions with respect to a power transient phenomenon in a wavelength division multiplex(WDM) network, whose signal is optically amplified during network reconfiguration or on the occurrence of a failure, when a WDM channel is added or deleted. SOLUTION: A variable band width filter circuit 500 is operated by a first prescribed band width for a first period τ0 to detect a change (power transient phenomenon) in a signal power caused by an event of a transient phenomenon and operated by a second specified band width narrower than the first prescribed band width for a period τ0+Δτ after the lapse of the first period to nearly suppress a low level signal change such as a remnant of the power transient phenomenon. Thus, the actual power transient phenomenon is maintained to start amplifier gain control based on the change in input power while the remnant is eliminated by preventing the remnant from being interpreted in mistake as an actual transient phenomenon event phenomenon.