Patents Represented by Attorney Katten Muchin Zavis Rosenman
  • Patent number: 6873602
    Abstract: A network system which automatically reconfigures its virtual LAN (VLAN) topology when a terminal station is relocated or newly added. When a terminal is relocated from one switch's local group to another switch's, the latter switch examines incoming frames from the relocated terminal, consulting its VLAN configuration table stored in a first storage unit. If this terminal turns out to be unknown to the switch, a query unit in the switch will request information about the unknown terminal by sending a query message to a server that manages the configuration of the network system. In response to the query, a searching unit in the server scans data records in a second storage unit, thus recognizing that the terminal in question has been relocated. The server then identifies to which VLAN the terminal is supposed to belong. A transmission unit in the server sends this information back to the requesting switch.
    Type: Grant
    Filed: July 20, 2000
    Date of Patent: March 29, 2005
    Assignee: Fujitsu Limited
    Inventor: Michiko Ambe
  • Patent number: 6873394
    Abstract: A producing method of a liquid crystal display panel includes steps (a) to (e). The Step (a) is fixing a counter substrate on a fixing table, wherein the counter substrate includes a plurality of counter portions each of which includes a plurality of counter electrodes. The Step (b) is dividing the counter substrate into the plurality of counter portions. The Step (c) is putting a liquid crystal material on the each of plurality of counter portions. The Step (d) is attaching a device substrate and the counter substrate together, wherein the device substrate includes a plurality of device portions each of which includes a plurality of switching devices. The Step (e) is dividing the device substrate into the plurality of device portions. The each of plurality of device portions is attached to a corresponding one of the each of plurality of counter portions.
    Type: Grant
    Filed: August 7, 2003
    Date of Patent: March 29, 2005
    Assignee: NEC LCD Technologies, Ltd.
    Inventors: Yoshikazu Noiri, Toshihiro Horiuchi, Toshiaki Mukai, Shinji Ueebisu, Hidefumi Yoshizoe
  • Patent number: 6873621
    Abstract: A system for controlling a bandwidth when receiving and reassembling a consecutive data stream transferred while segmented by AAL1 format cells which enables correct determination of non-P and P formats and reassembly of cells even when error arises in multiple bits including the CSI bit of an AAL1 cell or when adding dummy cells and thereby enabling prevention of a gap in data in a frame, comprising, in a data reassembly unit which reassembles received cells, an 8-cell buffer for storing 8 cells of a cycle of a sequence count (SC) of 0 to 7 and sending the cells out to a later stage after a check unit of a sequence number (SN) field confirms normalcy of the cells and a control unit for control so that the number of P format cells stored in the 8-cell buffer becomes 1 cell when 8 cells are stored in the 8-cell buffer.
    Type: Grant
    Filed: January 12, 2001
    Date of Patent: March 29, 2005
    Assignee: Fujitsu Limited
    Inventors: Jyoei Kamoi, Yoshihiro Uchida, Naoki Aihara, Mikio Nakayama, Kazuhito Yasue, Kazuhiko Kumagai
  • Patent number: 6869887
    Abstract: A method for manufacturing a thin film semiconductor device is provided which is capable of achieving simplification of manufacturing processes and of improving alignment accuracy without using a plurality of alignment masks. An alignment pattern is formed by using a resist layer having a plurality of regions each having a different film thickness corresponding to each of a plurality of patterns produced using a halftone mask having a halftone exposure region as a photomask and by forming a light transmitting portion to be an aperture pattern and by etching an underlying silicon layer. By having an underlying silicon layer exposed and implanting ions into an entire resist layer, only a main pattern region is doped with the ions.
    Type: Grant
    Filed: June 4, 2003
    Date of Patent: March 22, 2005
    Assignee: NEC LCD Technologies, Ltd.
    Inventor: Mitsuasa Takahashi
  • Patent number: 6870877
    Abstract: A transmission unit which transports digital signals between different network systems, effectively converting the signals to resolve their differences in the specifications. A first signal interface transmits and receives first network signals. A second signal interface transmits and receives second network signals. A downward converter produces lower-level signals by converting received first and second network signals to a lower hierarchical level at which the first and second network systems are compatible with each other in terms of logical signal structure. An upward converter produces a higher-level signal by converting each given lower-level signal to an upper hierarchical level which complies with the first or second network system. A loopback unit provides loopback paths to route the lower-level signals from the downward converter to the upward converter, so that the first and second network signal will be converted in both directions.
    Type: Grant
    Filed: December 29, 2000
    Date of Patent: March 22, 2005
    Assignee: Fujitsu Limited
    Inventor: Morihito Notani
  • Patent number: 6871175
    Abstract: A voice encoding method includes the steps of encoding a first frame that contains a plurality of voice data into encoded parameters, locally decoding the encoded parameters of the first frame into a second frame, performing a plurality of interpolation recovery processes that generate respective frames approximating to the first frame by using a frame or frames other than the first frame, comparing the second frame with the frames approximating to the first frame generated by the plurality of interpolation recovery processes, calculating a signal to noise ratio of each of the frames approximating to the first frame by treating the second frame as the signal, determining an index number that indicates an interpolation recovery process which provides a highest signal to noise ratio, and multiplexing and transmitting the index number with the encoded parameters.
    Type: Grant
    Filed: March 22, 2001
    Date of Patent: March 22, 2005
    Assignee: Fujitsu Limited Kawasaki
    Inventor: Fumio Amano
  • Patent number: 6871239
    Abstract: An electronic equipment communication system has electronic equipment and an external device to be connected to the electronic equipment. Communication between the external device and electronic equipment takes place when they are connected to each other and the external device has a program recording unit, in which a control program is recorded that controls the external device itself, and a program output unit, which outputs to the electronic equipment a control program stored in this program recording unit in response to requests from the connected electronic equipment, The electronic equipment controls the external device based on a control program outputted from the program output unit. Because the external device is controlled by the optimal control program recorded in the program recording unit, the performance of the external device can be fully elicited.
    Type: Grant
    Filed: July 13, 2001
    Date of Patent: March 22, 2005
    Assignee: Sony Computer Entertainment, Inc.
    Inventor: Makoto Tanaka
  • Patent number: 6871287
    Abstract: A system and method for the identification and verification of a user is provided.
    Type: Grant
    Filed: January 21, 2000
    Date of Patent: March 22, 2005
    Inventor: John F. Ellingson
  • Patent number: 6871053
    Abstract: A wireless communication apparatus according to the present invention is composed of a first section for carrying out wireless communication with a multichannel signal and a second section having a plurality of channel units each process a predetermined frequency signal as a channel signal. The wireless communication apparatus is arranged to have a plurality of variable attenuators each provided for corresponding one of the channel signals received from each channel unit of the second section, a combiner for combining outputs from the respective variable attenuators together and outputting the resultant combined signal to the first section, and a control unit for controlling the degree of attenuation of the individual variable attenuators according to the variation of the number of the channel signals.
    Type: Grant
    Filed: January 24, 2001
    Date of Patent: March 22, 2005
    Assignee: Fujitsu Limited
    Inventors: Yasuhiro Shibuya, Koji Hirai, Hiroyuki Kiyanagi
  • Patent number: 6867661
    Abstract: A millimeter wave system includes a plurality of millimeter wave modules, each of which comprises a substrate; a microstrip conductor formed on one surface side of the substrate; a ground plate formed on the other surface side of the substrate; and conductive pads which are disposed on both sides of a strip conductor portion which extends from said microstrip conductor via a tapered portion, and which are connected to the ground potential of said ground plate through a via hole, wherein the strip conductors of this plurality of millimeter wave modules are connected to each other using conductive ribbon. Moreover, when a plurality of millimeter wave modules is connected to form a millimeter wave system, the effect produced by the interaction between the unnecessary conductive pads connected to the ground potential and the strip conductor can be reduced.
    Type: Grant
    Filed: September 4, 2002
    Date of Patent: March 15, 2005
    Assignee: Fujitsu Limited
    Inventors: Debasis Dawn, Yoji Ohashi, Toshihiro Shimura
  • Patent number: 6868131
    Abstract: A demodulation apparatus that shortens demodulation time and performs efficient high-quality demodulation control. A digital signal generating section generates digital signals corresponding to phase axes from a modulated input signal. A frequency correction value outputting section outputs a frequency correction value. A frequency correcting section gives a frequency offset to digital signals on the basis of a frequency correction value to generate frequency-corrected signals. A timing recovering section performs timing recovery by extracting symbol timing for frequency-corrected signals. A C/N detecting section detecting C/N from a symbol. An optimum frequency correction value determining section treats a frequency correction value corresponding to the maximum C/N value as an optimum frequency correction value.
    Type: Grant
    Filed: July 17, 2001
    Date of Patent: March 15, 2005
    Assignee: Fujitsu Limited
    Inventor: Syouji Ohishi
  • Patent number: 6868305
    Abstract: Apparatus and method for controlling a hydraulic actuator in an injection molding machine, where the hydraulic actuator moves in a linear or rotary manner to effect movement of an injection molding device, such as a mold clamp. A microcontroller is locally disposed adjacent to the actuator or the hydraulic fluid distribution manifold to cause the actuator to drive the device. The microcontroller is electrically coupled to the system control processor. This distributed control architecture increases system processing throughput, enhances reliability, and permits easier upgrades/repair. Preferably, the microcontroller is mounted on the manifold and controls all of the actuators supplied from that manifold.
    Type: Grant
    Filed: July 23, 2001
    Date of Patent: March 15, 2005
    Assignee: Husky Injection Molding Systems Ltd.
    Inventors: Christopher Choi, Ian Crookston
  • Patent number: 6866972
    Abstract: For each of colored resists, a resist coating step of coating a washed substrate with the colored resist, a reduced-pressure drying and temporary baking step of evaporating solvent contained in the colored resist, an exposing step of printing a pattern in the colored resist, a developing the printed pattern and a photo-curing and temporary post-baking step of hardening a surface portion of the resist to a hardness level, in which there is no defect of the printed colored resist pattern occurs in a coating step and a developing step, which are performed later, are repeated. In forming a last colored resist, a normal baking step of simultaneously hardening all of the coated colored resist patterns is performed, instead of the photo-curing and temporary post-baking step.
    Type: Grant
    Filed: May 15, 2003
    Date of Patent: March 15, 2005
    Assignee: NEC LCD Technologies, Ltd.
    Inventor: Takayuki Ishino
  • Patent number: 6868552
    Abstract: The present invention concerns an ingress noise control system and an ingress noise blocking device which are used in a cable system to suppress ingress noise. In the cable system providing two-way communication using different frequency bands for transmission of upstream and downstream signals, the ingress noise control system includes, within a distribution unit, a two-way amplification unit, etc. provided in an upstream signal transmission path, a synchronous detection controller 6 for synchronously detecting the upstream signal transmitted from terminal equipment and separated by a low-pass filter 4 in a second separation filter 2, a gate switch circuit 5 which is turned on by the synchronous detection controller 6 to pass the upstream signal only when the upstream signal is synchronously detected, and an indicator 7 for indicating the on/off state of the gate switch circuit 5.
    Type: Grant
    Filed: June 7, 2000
    Date of Patent: March 15, 2005
    Assignees: Fujitsu Limited, Miharu Communications Co., Ltd.
    Inventors: Shigefumi Masuda, Hiroo Tamura, Minoru Ishida, Kazunari Inoue, Takayuki Tyou
  • Patent number: 6868428
    Abstract: A method of synchronizing databases of a plurality of monitoring devices in a communications system having a communications device, a first monitoring device and a second monitoring device for monitoring the communications device and a network connecting these devices. Each monitoring device accommodates a database. The first monitoring device transmits a control command with a network address of the first monitoring device to the communications device. The communications device transmits the received network address to the second monitoring device. The first monitoring device updates registered data recorded in the database accommodated by the first monitoring device. The second monitoring device transmits a read-out request for reading out registered data which is altered by the updating operation and recorded in the database accommodated by the first monitoring device, to the first monitoring device by using the network address of the first monitoring device received from the communications device.
    Type: Grant
    Filed: September 21, 2001
    Date of Patent: March 15, 2005
    Assignee: Fujitsu Limited
    Inventors: Gaku Todokoro, Takashi Onodera, Shoji Tsuchiya
  • Patent number: 6864742
    Abstract: A predistortion circuit for a microwave amplifier and more particularly to predistortion circuit configured as a Doherty amplifier. The predistortion circuit is adapted to be coupled to a downstream Doherty amplifier to precompensate for the gain compression and phase expansion of the downstream Doherty amplifier as the input power level is increased while simultaneously reducing the intermodulation (IM) distortion. In order to provide precompensation, the precompensation circuit is operated at bias level to provide gain expansion and phase compression to cancel out the gain compression and phase expansion of the downstream Doherty amplifier to provide a higher overall linear power added efficiency (PAE).
    Type: Grant
    Filed: June 8, 2001
    Date of Patent: March 8, 2005
    Assignee: Northrop Grumman Corporation
    Inventor: Kevin W. Kobayashi
  • Patent number: 6865240
    Abstract: The frame synchronizing circuit establishes frame synchronization by detecting a sync pattern laid in an incoming frame. The frame synchronization circuit comprises a first frame synchronizing unit and a second frame synchronizing unit. The first and second synchronizing units synchronize with a first pattern, a second pattern at a first position and a second position, respectively. Thereafter, when the first position used for the synchronization by the first frame synchronizing unit is found to be in error, the first frame synchronizing unit synchronizes with the second pattern at the second position used by the second frame synchronization unit.
    Type: Grant
    Filed: March 31, 2000
    Date of Patent: March 8, 2005
    Assignee: Fujitsu Limited
    Inventor: Miyuki Kawataka
  • Patent number: 6864745
    Abstract: In a distortion compensation device which uses distortion compensation coefficients to subject distortion compensation processing to an input signal and supply the result of the distortion compensation processing to a distorting device, calculates the distortion compensation coefficients based on the input signal before distortion compensation and the feedback signal fed back from the output side of the distorting device, and stores the calculated distortion compensation coefficients in association with the input signal, (1) the feedback signal is AD-converted; (2) the AD-converted output is subjected to fast Fourier transform (FFT) processing; (3) the FFT calculation result is used to calculate the value of either the signal-to-noise ratio SNR, or the adjacent channel leakage power ratio ACLR, or the noise level; (4) the delay time occurring in the distorting device and feedback loop is adjusted such that the difference between the above calculated value at the current time and the above calculated value at
    Type: Grant
    Filed: October 15, 2003
    Date of Patent: March 8, 2005
    Assignee: Fujitsu Limited
    Inventors: Takayoshi Ode, Yasuyuki Oishi, Tokuro Kubo, Kazuo Nagatani, Hajime Hamada, Hiroyoshi Ishikawa, Nobukazu Fudaba
  • Patent number: 6865182
    Abstract: In a data transfer method and apparatus of the present invention, multiple data frames are received from a preceding node of a network of communication units, and the received data frames are routed to a next node of the network. It is detected whether each of the multiple data frames is addressed to another communication unit. It is detected whether the data frames that are detected as being addressed to another communication unit contain identical messages. The data frames that are detected as containing different destinations and identical messages are assembled into an integrated data frame, so that the integrated data frame is transmitted to the next node. A selected next-node equipment identifier is supplied, which indicates a selected next-node communication unit of the network that receives the integrated data frame.
    Type: Grant
    Filed: March 26, 2001
    Date of Patent: March 8, 2005
    Assignee: Fujitsu Limited
    Inventors: Hironori Ochiai, Yuji Ito, Akinori Kubota, Yasuhide Tsuru, Masahiro Hayashi, Takao Shikama
  • Patent number: D503178
    Type: Grant
    Filed: June 18, 2003
    Date of Patent: March 22, 2005
    Assignee: Husky Injection Molding Systems Ltd.
    Inventor: Christopher Wai-Ming Choi