公开(公告)号：JP2003149408A

公开(公告)日：2003-05-21

申请号：JP2002281177

申请日：2002-09-26

Applicant: LUCENT TECHNOLOGIES INC

Inventor： BOLLE CRISTIAN A

IPC: G02B3/00 ,  B29D11/00 ,  B44C1/22 ,  H01L21/00 ,  H01L21/302 ,  H01L21/3065 ,  H01L21/461

Abstract: PROBLEM TO BE SOLVED: To provide a method for compensating for non-uniformity of etching. SOLUTION: In an example of etching, a specific non-uniform parameter of a structure obtained from a non-uniform etch profile during the etching of a mask consisting of the same structures can be evaded by changing the mask to be used for specifying an etching area in order to compensate for the etch profile. Concretely the mask is changed from a specific structure characteristic for determining a specific parameter by a method of being in inverse proportion to the etch profile. When each lens has a minimum diameter in the case of forming a lens string for example, the specific parameter is a focal distance. In order to attain a uniform focal distance, the diameter/height of a photoresist disk is changed over the surface of a substrate.

公开(公告)号：JP2003139982A

公开(公告)日：2003-05-14

申请号：JP2002196392

申请日：2002-07-04

Applicant: LUCENT TECHNOLOGIES INC

Inventor： GILL DOUGLAS M ,  JACOBSON DALE CONRAD

IPC: G02B6/13 ,  G02B6/12 ,  G02B6/134 ,  G02B6/136 ,  G02F1/035

Abstract: PROBLEM TO BE SOLVED: To provide a method for etching structures into ferroelectric materials. SOLUTION: A single layer of ions is implanted into a film surface and the material between the surface and the ion implantation layer is etched away without annealing the substrate. Electronic damage and crystalline damage of high levels are formed with single ion implantation with sufficient energy. Although the fact that the crystalline damage increases an etch rate of the ferroelectric material is publicly known, the inventors have discovered that the electronic damage increases the etch rate of the material. Damaged LiNbO3 has an etch rate much faster than undamaged LiNbO3 and an annealing process is not necessary for forming an etch stopping layer.

公开(公告)号：JP2003134154A

公开(公告)日：2003-05-09

申请号：JP2002214155

申请日：2002-07-23

Applicant: LUCENT TECHNOLOGIES INC

Inventor： NAGARAJAN RAMESH ,  QURESHI MUHAMMAD A

IPC: H04B10/20 ,  H04J14/02 ,  H04L12/56 ,  H04Q11/00

Abstract: PROBLEM TO BE SOLVED: To provide a method and device for efficiently assigning link resources (port/frequency) in an optical transport network. SOLUTION: An optical transport network comprises a plurality of nodes, or routers, which are coupled together via optical fibers. When a physical link comes up between a node and a neighboring node, a handshake between the node and the neighboring node recognizes the link, and the node and the neighboring node are included in link assignment tables. In addition, the node and the neighboring node negotiate a predefined sequence for assigning link resources to satisfy connection requests.

公开(公告)号：JP2003133962A

公开(公告)日：2003-05-09

申请号：JP2002225755

申请日：2002-08-02

Applicant: LUCENT TECHNOLOGIES INC

Inventor： BERNARDINI RICCARDO ,  KOVACEVIC JELENA

IPC: H04N7/30 ,  H03H17/02 ,  H03M1/00 ,  H03M7/30 ,  H04N7/26

Abstract: PROBLEM TO BE SOLVED: To provide a method for encoding and decoding information included in images and videos. SOLUTION: A method and apparatus for encoding/decoding multi-dimensional signals are disclosed. An unseparable multi-dimensional filter is used. Analysis filter multi-dimensional signals are encoded by applying a window function and a contraction function to the signals. According to this operation, a prototype is generated. A required number of the prototypes can be duplicated by utilizing a modulation function. The encoded signals are decoded by utilizing a process reverse to the encoding process by a composite filter.

公开(公告)号：JP2003116171A

公开(公告)日：2003-04-18

申请号：JP2002183765

申请日：2002-06-25

Applicant: LUCENT TECHNOLOGIES INC

Inventor： GOSS STEPHEN C ,  SAND PAUL R ,  SANDS PHILLIP MICHAEL

IPC: H04B10/12 ,  H04Q3/52 ,  H04W88/08 ,  H04Q7/36

Abstract: PROBLEM TO BE SOLVED: To provide a cellular communication system provided with a central radio pool/traffic router (CRP/TR) that sends control and traffic signals over fiber optic transmission links that connect the CRP/TR with base stations of the cellular communication system. SOLUTION: The high bandwidth capacity of each fiber link allows a large band of radio frequencies representing many radio channels to pass between the CRP/TR and individual base stations. Radio sources can be shared by all base stations in the cellular communication system, dynamically, when and where needed, to meet access demands throughout the entire system. The CRP /TR is provided with low-powered digital and/or analog radios and also switching and modulating means used to convey signals between the radios and various base stations within the system.

公开(公告)号：JP2003101479A

公开(公告)日：2003-04-04

申请号：JP2002177023

申请日：2002-06-18

Applicant: LUCENT TECHNOLOGIES INC

Inventor： MAROM DAN MARK ,  NEILSON DAVID THOMAS

IPC: G02B26/08 ,  G02B6/34 ,  G02F1/31 ,  H04B10/02 ,  H04J14/00 ,  H04J14/02 ,  H04Q3/52 ,  H04Q11/00

Abstract: PROBLEM TO BE SOLVED: To provide programmable optical multiplexer/demultiplexer. SOLUTION: The programmable optical demultiplexer independently allocates all input optical channels in a WDM optical communication signal and outputs them from a desired output port. The demultiplexer can be operated in an opposite direction. Thus, different wavelengths can be received in multiple input ports and the multilevel wavelength channels are combined in the multiple output ports. Consequently, the programmable optical multiplexer is realized. The programmable multiplexer/demultiplexer have optical constitutions which spatially disperse the optical wavelengths, and they independently give directions to the respective channels by using a tunable micro mirror. Thus, connection between the input port and the output port is decided in a wavelength level by controlling the reflecting direction of a beam.

公开(公告)号：JP2002359562A

公开(公告)日：2002-12-13

申请号：JP2002090164

申请日：2002-03-28

Applicant: LUCENT TECHNOLOGIES INC

Inventor： BAYER LUDWIG ,  BUERNER THOMAS ,  DOHMEN RALF

IPC: G06F11/10 ,  H03M13/15 ,  H03M13/45 ,  H04L1/00

Abstract: PROBLEM TO BE SOLVED: To provide a simplified effective decoding method for decoding algebraic block codes, used for channel coding for digital data transmission. SOLUTION: The method is executed, based on a syndrome polynomial R (X), together with a receiving device and a computer program, such that received words r are sampled at specified interpolation points α -α to obtain symbols r -r , a discrete Fourier transformation is applied to the symbols r -r , to obtain coefficients Ri for forming the polynomial R (X) and the error position retrieval is executed abut introduction of a defined elimination, based on the polynomial R (X).

公开(公告)号：JP2002353937A

公开(公告)日：2002-12-06

申请号：JP2002137328

申请日：2002-05-13

Applicant: LUCENT TECHNOLOGIES INC

Inventor： BURGESS JOHN K ,  MEIER STEVEN KENT ,  PALM CHRISTOPHER D ,  WELSH STEVEN M

IPC: H04B1/69 ,  H04J11/00 ,  H04J13/00 ,  H04J13/18

Abstract: PROBLEM TO BE SOLVED: To implement Walsh code allocation, so that an amplifier is operated non-linearly and the risk of unwanted interferences can be prevented or minimized, that is a peak/average power ratio can be kept equal to or lower than the allowable level. SOLUTION: In the method for allocating a CDMA code from the set of CDMA codes, to be used together with a wireless communication network, after a step for identifying the desired size of a code to be allocated, this method is provided with a step for determining whether a code of the desired size whose sibling exists. When such a code is discovered, that code is allocated. Otherwise, it is determined whether a code smaller than the desired size whose siblings unavailable. When such a code (a code smaller than the desired size whose sibling is unavailable) is discovered, a descendant thereof having the desired size is allocated.

公开(公告)号：JP2002353936A

公开(公告)日：2002-12-06

申请号：JP2002132617

申请日：2002-05-08

Applicant: LUCENT TECHNOLOGIES INC

Inventor： DAS ARNAB ,  GOPALAKRISHNAN NANDU ,  KHAN FAROOQ ULLAH

IPC: H04J13/00 ,  H04B1/707 ,  H04L1/00 ,  H04L25/03

Abstract: PROBLEM TO BE SOLVED: To provide a method for transmitting signaling information with high reliability. SOLUTION: First signaling information is transmitted via a main control channel. This first signaling information is defined as a pair of particular information; second signaling information is transmitted via, a second control channel; before transmission, the second signaling information is scrambled according to a scrambling procedure expressing the first signaling information; and the contents of the first signaling information are integrated in the second signaling information and encoded by this scrambling procedure to protect the integrity of the first and second signaling information.

公开(公告)号：JP2002350796A

公开(公告)日：2002-12-04

申请号：JP2002111756

申请日：2002-04-15

Applicant: LUCENT TECHNOLOGIES INC

Inventor： GATES JOHN VANATTA II ,  GILL DOUGLAS M ,  SMITH ROBERT W

IPC: G02F1/035 ,  G02F1/03 ,  G02F1/225

Abstract: PROBLEM TO BE SOLVED: To provide a Mach-Zehnder electrooptic modulator constitution which provides high-bit-rate throughput. SOLUTION: This Mach-Zehnder electrooptic modulator includes three regions. A 1st region has a couple of isolated waveguides and is equipped with a ground electrode 76 arranged on a 2nd waveguide 64 and an RF electrode (hot electrode) which is arranged on a 1st waveguide 66 and carries a modulated signal. A 2nd transition region is arranged right behind the 1st region. An electrode structure moves to the 2nd region, the RF electrode 72 is arranged over the 2nd waveguide 64 nearby the exit point of the 2nd region, and the ground electrode 78 is arranged on the 1st waveguide 66. A 3rd region is arranged behind the 2nd region. The RF electrode 72 is held on the 2nd waveguide 64 and the ground electrode 78 is held on the 1st waveguide 66.