Patents Issued in February 20, 2003
  • Publication number: 20030035355
    Abstract: For an optical disk for which a record strategy is not prepared in a memory and an optical disk which cannot obtain a good signal quality by using the record strategy prepared in the memory, test recording is performed by using all record strategies prepared in the memory or properly adopted record strategies by changing the record power. A record strategy providing a relatively high signal quality is selected to record data in the optical disk. The record strategies for such optical disks can be easily set.
    Type: Application
    Filed: August 19, 2002
    Publication date: February 20, 2003
    Applicant: Yamaha Corporation
    Inventor: Morito Morishima
  • Publication number: 20030035356
    Abstract: An optical wavefront modifier (27) is adapted for modifying a wavefront of an optical beam passing through the modifier. The modifier comprises a first and a second transparent electrode layer (42′, 43′) and a flat medium (46) for modifying the wavefront in dependence on electrical excitation and arranged between the electrode layers. The first electrode layer (42′) comprises three or more electrodes (51-55) of a transparent, conductive material. The electrode layer also comprises a series arrangement of resistors, comprising three terminals (48, 48′, 48″) connected to the electrodes and resistors (49, 49′) connecting the terminals. The resistors are made of the same transparent conductive material as the electrodes.
    Type: Application
    Filed: August 21, 2001
    Publication date: February 20, 2003
    Inventors: Sjoerd Stallinga, Jeroen Wals, Joris Jan Vrehen
  • Publication number: 20030035357
    Abstract: A recording and reproducing system is broken down into a recording unit for producing a digital audio data signal from MIDI music data words asynchronously produced at irregular intervals and a playback unit for reproducing the MIDI music data codes from the digital audio data signal, wherein synchronous data nibbles are supplemented in the irregular intervals among the MIDI music data words for producing a data stream, and the digital audio data signal is produced from the data stream through a differential phase shift keying and a phase code modulation so as to record the MIDI messages in a digital versatile disk at high dense.
    Type: Application
    Filed: April 18, 2001
    Publication date: February 20, 2003
    Inventors: Jun Ishii, Haruki Uehara
  • Publication number: 20030035358
    Abstract: A circuit board body 6a of a printed circuit board 6 provided on an outer peripheral surface of a pickup body 1 made of a synthetic resin is formed of a metal plate, an extension 19 extending integrally from a metallic supporting baseplate 8 of a semiconductor laser LD is inserted in a groove 20 formed in the outer peripheral surface of the pickup body 1. The circuit board body 6a is secured to the pickup body 1 by a screw 7 and a projection 15 to allow the circuit board body 6a to be held in close contact with the extension 19 and the outer peripheral surface of the pickup body 1.
    Type: Application
    Filed: August 6, 2002
    Publication date: February 20, 2003
    Applicant: FUNAI ELECTRIC CO., LTD.
    Inventor: Tatsuya Ito
  • Publication number: 20030035359
    Abstract: An optical pickup device having a lead frame package and a detecting unit is provided. The lead frame package includes a sub-mount, a light source mounted on the sub-mount and emitting a beam, a reflecting element disposed to direct the beam toward an optical medium, a transmission-type diffraction gating element dividing the beam into three beams, and a hologram optical element diffracting the beams reflected from the optical medium, the lead frame package having an opening defined by the hologram optical element, the bottom of the lead frame package, and side walls of the lead frame package. The detecting unit having a substrate and a photo diode mounted on the substrate is disposed within the opening of the lead frame package. After the detecting unit is adjusted with respect to the lead frame package to a position to accurately receive the reflected beams from the hologram optical element, the detecting unit is fixed to the lead frame package.
    Type: Application
    Filed: November 28, 2001
    Publication date: February 20, 2003
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Ho-Seop Jeong, Chon-Su Kyong, Seung-Man Oh
  • Publication number: 20030035360
    Abstract: The present invention relates to a phase-change optical information recording medium comprising a recording layer which reversibly phase-changes between the crystalline phase and the amorphous phase by irradiation of a light having a recording wavelength of 390 to 430 nm, and a light transmittance thermally controllable layer showing a light transmittance varying according to temperature, in which the light transmittance increases at a rate of 0.2 to 0.7% /10° C.
    Type: Application
    Filed: July 9, 2002
    Publication date: February 20, 2003
    Inventors: Michiaki Shinotsuka, Hiroyuki Iwasa, Takao Yamada, Toshio Matsushita, Yasuo Kanbara, Shigeki Okauchi
  • Publication number: 20030035361
    Abstract: Structures of storage media for optical storage systems, especially for systems in the near-field configuration to couple radiation between the optical head and the media at least in part by evanescent fields. Manufacturing methods are also disclosed.
    Type: Application
    Filed: June 14, 2002
    Publication date: February 20, 2003
    Applicant: Terastor Corporation
    Inventors: Gordon R. Knight, John Al-Samarrie, David Blankenbeckler, Brian Bonn, Alan Burroughs, Warren Dalziel, Roger Hajjar, Amit Jain, Guolin Ma, Brian P. Tremaine
  • Publication number: 20030035362
    Abstract: A disk drive includes: a motor that rotates a disk; an auto-balancer connected to a rotating portion of the motor and changing its center of mass; a base secured to the motor and connected to an external member via a first elastic member; and a dynamic vibration absorber connected to the base via a second elastic member. If the disk whirls while rotating, a relationship between a first or second natural frequency of a first or second vibration system, including the base, first elastic member and external member or the dynamic vibration absorber, second elastic member and base, as measured parallelly to the base plane and a rotational frequency of the disk is defined so that a phase angle of 120 to 180 degrees is formed between a direction from a whirling center axis toward a center of mass of the disk and a direction from the whirling center axis toward the center of mass of the auto-balancer.
    Type: Application
    Filed: September 3, 2002
    Publication date: February 20, 2003
    Inventors: Kenji Akimaru, Teruyuki Takizawa, Yoshito Sazi, Yoshihiro Ikawa, Masahiro Inata
  • Publication number: 20030035363
    Abstract: An optical disc includes a first substrate having a first central opening, a first signal layer formed on one of the surfaces of the first substrate, a second substrate having a second central opening, a second signal layer formed on one of the surfaces of the second substrate, and a hub having a central longitudinal axis. The first substrate and the first signal layer are designed such that a first central longitudinal axis of the first opening substantially coaxially aligns with a first central longitudinal axis of the first signal layer, and the second substrate and the second signal layer are designed such that a second central longitudinal axis of the second opening substantially coaxially aligns with a second central longitudinal axis of the second signal layer. The first substrate, the second substrate and the hub are bonded together with the result of substantially coaxially alignment of the central longitudinal axis of the first signal layer, the second signal layer and the hub.
    Type: Application
    Filed: August 13, 2002
    Publication date: February 20, 2003
    Inventors: Michiyoshi Nagashima, Ross Querubin
  • Publication number: 20030035364
    Abstract: CDs, CD-ROMs, DVDs, optical discs or the like, referred to herein as optically readable carriers, and an adapter therefor, for adapting said optically readable carriers, which may he non-round, for use in a CD, CD-ROM, DVD, optical disc or the like reader, writer or other optically readable carrier handling device.
    Type: Application
    Filed: December 19, 2000
    Publication date: February 20, 2003
    Inventor: King Yeung Choi
  • Publication number: 20030035365
    Abstract: A channel card for communicating asymmetric digital subscriber line (ADSL) traffic over a communication line is provided. The channel card includes an asynchronous transfer mode (ATM) section that provides an interface to a cell bus of a chassis and provides ATM processing of cells. The channel card also includes a transceiver section that is coupled to the ATM section. The transceiver section includes at least one subscriber port. The transceiver section provides for modulation and demodulation of data for the at least one subscriber port. The transceiver section includes a common mode choke for reducing noise on the communication line.
    Type: Application
    Filed: August 20, 2001
    Publication date: February 20, 2003
    Inventors: Robert T. Jurdi, Janusz M. Kucharski
  • Publication number: 20030035366
    Abstract: The present invention relates in general to a method, apparatus, and article of manufacture for providing high-speed digital communications through a communications channel. In one aspect, the present invention employs crosstalk management techniques and structures that increase the system performance in channel communications.
    Type: Application
    Filed: August 16, 2002
    Publication date: February 20, 2003
    Inventors: James Gorecki, John T. Stonick, Un-Ku Moon, Stephen Robert Titus
  • Publication number: 20030035367
    Abstract: There is provided an apparatus and method for using QOF (Quasi-Orthogonal Function) Walsh codes when enough orthogonal Walsh codes are not available for a packet data service in a mobile communication system supporting concurrent provision of a high rate packet data service and a circuit call service. A data rate (DR1) in the case of using available orthogonal Walsh codes is first obtained. Then, a data rate (DR2) in the case of using QOF Walsh codes is obtained considering a power reduction factor due to the increase of interference involved with the use of the QOF Walsh codes. Packet data is transmitted at a higher data rate of DR1 and DR2. At the same time, information about the selected data rate and information about whether the QOF Walsh codes are used or not are transmitted.
    Type: Application
    Filed: January 17, 2002
    Publication date: February 20, 2003
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jin-Woo Heo, Sang-Min Bae, Seong-Woo Ahn, Jong-Han Kim
  • Publication number: 20030035368
    Abstract: A system is disclosed to switch over redundant Ethernet transmission lines using link status control, as decreasing software intervention required for the transmission and reception of control frames, etc. The system includes Ethernet transmission lines having redundant configuration, first and second transmission equipment being connected through the Ethernet transmission lines. An Ethernet switch provided in the first transmission equipment learns a route configuration from the frames transmitted from the first and the second transmission equipment. Switchover of the active transmission line is performed using the learned information on the route configuration.
    Type: Application
    Filed: March 14, 2002
    Publication date: February 20, 2003
    Inventor: Toru Tanada
  • Publication number: 20030035369
    Abstract: A communication control system and method comprising, in one embodiment, a plurality of strobe signals are generated at different timings in a transmission circuit and a plurality of latch circuits equal to the number of strobe signals are provided in a receiver circuit so that data is retained in each latch circuit using the strobe signals one at a time.
    Type: Application
    Filed: September 23, 2002
    Publication date: February 20, 2003
    Applicant: YOKOGAWA ELECTRIC CORPORATION, a Japan corporation
    Inventors: Shunsuke Hayashi, Hideo Matsukawa, Toyoaki Yokoi
  • Publication number: 20030035370
    Abstract: An Internet Service Provider (ISP), in consideration of being remunerated in some manner by a site, determines whether packets destined to that site conform to a profile provided to the ISP by that site. The profile, indicates, for example, what protocols are allowed by the server, and, for each such protocol, what destination port numbers or message types are allowed, a maximum transmission rate, the maximum number of allowed connections a client may have, and whether to enforce congestion-avoidance. This server profile enforcement (SPE) automatically thwarts denial of service attacks from attackers that send packets to the subscribing server from that ISP using connections or having packet characteristics that do not conform to the acceptable characteristics specified in the profile. SPE is generally performed by an SPE unit, which can be incorporated in the access gateways of an ISP that supports the service.
    Type: Application
    Filed: June 19, 2002
    Publication date: February 20, 2003
    Inventor: Jose?apos; C. Brustoloni
  • Publication number: 20030035371
    Abstract: This invention is directed to a parallel, control-information generation, distribution and processing system. This scalable, pipelined control and switching system efficiently and fairly manages a plurality of incoming data streams, and applies class and quality of service requirements. The present invention also uses scalable MLML switch fabrics to control a data packet switch, including a request-processing switch used to control the data-packet switch. Also included is a request processor for each output port, which manages and approves all data flow to that output port, and an answer switch which transmits answer packets from request processors back to requesting input ports.
    Type: Application
    Filed: July 31, 2001
    Publication date: February 20, 2003
    Inventors: Coke Reed, John Hesse
  • Publication number: 20030035372
    Abstract: Managing packets in a shared memory buffer involves linking buffered packets into a linked list in the order that the packets are written into the shared memory buffer, examining the packets in the order of the linked list to determine which packets are intended for available output links, and then dispatching the oldest packet that is intended for an available output link even if the packet is preceded on the linked list by packets that are older but are intended for unavailable output links. Packets are stored with NEXT pointers that establish the linked list and output link identifiers that identify the intended output links of the packets. The head of the linked list is identified by a linked list HEAD pointer. When a packet is dispatched, the packet is removed from the linked list by adjusting the linked list HEAD pointer or the NEXT pointer of the previous packet.
    Type: Application
    Filed: August 15, 2001
    Publication date: February 20, 2003
    Inventor: Marc Schaub
  • Publication number: 20030035373
    Abstract: A receiver may be adapted to prevent overflow or underflow of its data storage by generating a transmit rate value as a feedback to the sender. Speed adjustments are performed periodically with a fixed time period denoted by Dt. Transmission rates are explicitly 0, Max/2, and Max. The receiver queue is itself drained at a rate R that at any time satisfies 0<=R<=Max. The level of occupancy of the receiver storage queue is denoted by Q. The maximum capacity of the receiving queue is designated Qmax, so at any time, 0<=Q<=Qmax. Two thresholds T1 and T2 (with 0<T1<T2<Qmax) of levels of the receiver queue value Q are determined. A transmit rate is then determined by the level of the receiver queue Q compared to the thresholds. The transmit rate feedback value achieves the desired goal of avoiding overflow and, once the value of Q has been positive at least once, avoiding underflow.
    Type: Application
    Filed: August 20, 2001
    Publication date: February 20, 2003
    Applicant: International Business Machines Corporation
    Inventors: Brian Mitchell Bass, Clark Debs Jeffries, Michael Steven Siegel
  • Publication number: 20030035374
    Abstract: Congestion control in a communications network, e.g. an Internet Protocol (IP) network, is effected by controlling the egress rate of traffic from the output buffer of the system routers or switches. The traffic egressing from an output buffer is sampled at sequential intervals to determine a bit rate at each interval. An autocorrelation function is calculated from these samples and is used to provide an estimated statistical measure or parameter indicative of congestion and related to a long range dependence of the traffic. A calculation is then made as to whether an increase or a decrease in the buffer output rate would result in a decrease in the congestion parameter, and the buffer output rate is adjusted accordingly.
    Type: Application
    Filed: May 28, 2002
    Publication date: February 20, 2003
    Inventors: Malcolm Carter, David Ireland, Kevin Warbrick, Jon Weil, Peter Hamer, Richard Clegg, Arthur Clune
  • Publication number: 20030035375
    Abstract: A method for routing a message from a source node to a destination node, wherein the source node and the destination node are connected by a plurality of nodes in a cycle-based system, including generating a maze data structure comprising the plurality of nodes, wherein each of the plurality of nodes is associated with a dimension corresponding to time, and routing the message from the source node to the destination node using the dimension corresponding to time.
    Type: Application
    Filed: July 17, 2002
    Publication date: February 20, 2003
    Inventor: Jay R. Freeman
  • Publication number: 20030035376
    Abstract: A method of deriving a composite step function response from a band-limited transmission channel frequency response includes the steps of obtaining a time domain response from the band limited frequency response, identifying reflection events from the time domain response, estimating an impulse response from the identified reflection events, and determining the composite step function from the estimated impulse response.
    Type: Application
    Filed: August 20, 2001
    Publication date: February 20, 2003
    Inventor: Xiaofen Chen
  • Publication number: 20030035377
    Abstract: A method and apparatus accurately and reliably perform a dying gasp process for an external digital subscriber line communication terminal connected to a personal computer via the Ethernet. The state of an Ethernet port of the communication terminal connectable to the personal computer is sensed, and whether the Ethernet port is made inactive after the Ethernet port is made active is checked. The dying gasp process is performed upon sensing the occurrence of the inactive state of the Ethernet port after the Ethernet port is made active.
    Type: Application
    Filed: May 8, 2002
    Publication date: February 20, 2003
    Inventor: Dong-Kweon Ju
  • Publication number: 20030035378
    Abstract: A communication system, in one embodiment, has set top boxes that the have the ability to monitor the subnet to which they are coupled. A multicast router couples one or more groups, such as groups of video programs, to the set top boxes as requested by the set top boxes. If one set top box leaves a first group, for example, and thus sends a leave message to the router, the other set top box or boxes know to send a join message if they are subscribed to that first group. Thus, the router knows immediately to couple that first group on that subnet.
    Type: Application
    Filed: August 14, 2001
    Publication date: February 20, 2003
    Inventors: Lan V. Nguyen, Charles E. Cannon
  • Publication number: 20030035379
    Abstract: Based upon given demands, nodes, spans, speed hierarchy, equipment, weights, preferences, and constraints, the apparatus and method disclosed creates an optimized network configuration by (1) separating demands into groups based on their shortest path and the maximum cycle size, (2) routing each demand group, and (3) re-routing the demands on rings that exceed the Cost Threshold when cost effective. Common elements in routing demands in the groups are functional analysis for equipment selection and functional analysis for demand routing.
    Type: Application
    Filed: July 14, 2001
    Publication date: February 20, 2003
    Inventors: Sheri L. Zimmel, Kristopher E. Glover, Anna A. Maravina, Mark W. Lewis, Irina B. Makkaveeva, Daniel P. Schmidt
  • Publication number: 20030035380
    Abstract: A system and method for management of nodes. Nodes are grouped together in a node group according to selected criteria. The node group is repeatedly re-evaluated, at predetermined intervals, based on the selected criteria. A selection of at least one node and/or node group is facilitated, and the selected at least one node and/or node group is queried. The system in one instance is implemented as a computer software program, which can be carried on a computer readable medium.
    Type: Application
    Filed: August 6, 2002
    Publication date: February 20, 2003
    Inventors: Andrew P. Downing, Andrew R. Rutherford, Kong Y. Lai
  • Publication number: 20030035381
    Abstract: A data network-based teleconferencing platform is implemented to allow individuals to set up and control conference calls over the conventional voice network, even individuals without direct access to a teleconference-enabling element (such as a PBX switch). A network-controlling server (such as a CTI server), in conjunction with a web server, are located in the data network and used to interface between the individual and a conventional conference element (such as a PBX switch). The web server responds to data commands from the indvidual to set up a conference call, and may use directory listings stored in a data base at the platform to retrieve the necessary call set-up information. The call set-up information is then sent from the web server to the CTI server, which translates this information into telecommunication commands and forwards the commands to the PBX switch, where the PBX switch then sets up the call in its usual fashion.
    Type: Application
    Filed: August 16, 2001
    Publication date: February 20, 2003
    Inventors: Yihsiu Chen, Mark Jeffrey Foladare, Shelley B. Goldman, Kevin Stone, Shaoqing Q. Wang, Roy Philip Weber, Robert S. Westrich, Aleksandr Zelezniak
  • Publication number: 20030035382
    Abstract: According to the present invention, the bandwidth of a TDD channel is increased where multiple slave devices communicate with a master device over the channel. According to an aspect of the present invention, the master device can increase channel bandwidth by utilizing available transmit slots that occur during receipt of a multi-slot packet from a slave device. For example, the master device receives a first packet at a first frequency from a first slave via the channel. The master determines whether the first packet is a multi-slot packet, and if so, transmits a second packet to a second slave via the channel at a second frequency different from the first frequency. The second packet is transmitted after receipt of the first packet, but prior to the end of the first packet.
    Type: Application
    Filed: August 20, 2001
    Publication date: February 20, 2003
    Inventor: Jaku Jose
  • Publication number: 20030035383
    Abstract: A computer-implemented method, system and computer program product for demanding a data link resource in a communications network, including calculating an unsatisfied demand (UD) value for the data link resource at a terminal and transmitting the calculated UD value over the data link from the terminal to a base station at a time uncorrelated with a time at which new demand for the data link resource is detected by the terminal. The UD value is calculated as UD=NUM_RLC_BLK_UNSENT+NUM_RLC_BLK_NACK, where NUM_RLC_BLK_UNSENT is a number of radio link control (RLC) blocks not yet sent and NUM_RLC_BLK_NACK is a number of RLC blocks negatively acknowledged by the base station. The UD value is received from the terminal at the base station over the data link. The base station calculates an imputed unsatisfied demand (IUD) value based on the received UD value and existing data link resources already allocated to the terminal and transmits the calculated IUD value to a data link resource scheduler.
    Type: Application
    Filed: September 26, 2001
    Publication date: February 20, 2003
    Inventor: Stephen Hershey
  • Publication number: 20030035384
    Abstract: The present invention pertains to an apparatus (and corresponding method) including both an echo cancellation module and packet loss concealment module for the processing of audio samples sent within packet data networks. The echo cancellation module serves the role of reducing echoes that may have been introduced in the audio samples. The packet loss concealment module serves the role of concealing loss of audio samples that may have occurred in the received audio samples. The echo cancellation module includes a buffer for storing recently received audio samples. This buffer provides historical data for use by both the echo cancellation module and the packet loss concealment module in performing their respective functions. The use of one data buffer (instead of separate buffers for the echo cancellation module and the packet loss concealment module) provides a resource-efficient solution, allowing the invention to be implemented in a cost-effective and size-efficient manner.
    Type: Application
    Filed: May 6, 2002
    Publication date: February 20, 2003
    Applicant: Globespan Virata, Incorporated
    Inventors: Jonathan Cline, Chuan Hsueh
  • Publication number: 20030035385
    Abstract: An approach for processing packets for transmission over a satellite communications network is disclosed. A communication system includes a satellite terminal that provides connectivity for a host. The satellite terminal includes a user interface that receives a packet associated with an application from the host, and classification logic that classifies the packet into one of a plurality of transport services based upon the corresponding application. The satellite terminal also includes a mapping logic that maps the one transport service to one of a plurality of packet delivery services, wherein the one packet delivery service provides transmission of the packet to the satellite. The system also includes a hub that is configured to communicate with the satellite terminal over the satellite to provide the plurality of packet delivery services.
    Type: Application
    Filed: August 9, 2001
    Publication date: February 20, 2003
    Inventors: William Walsh, Mark Abinante, Craig Schweinhart, Anthony Heatwole
  • Publication number: 20030035386
    Abstract: An apparatus and method for providing efficient connectivity to the Internet via a satellite communication link. A particularly useful embodiment of the invention comprises a an apparatus and method for webcasting live events over a satellite communication link. Digital multimedia data is converted to a bitstream format by an encoder. The encoder supplies the bitstream data to an uplink subsystem for transmission to a satellite. The satellite retransmits the data to a ground-based facility which makes the content available to subscribers over the Internet, either directly or through an independent Content Delivery Network. A novel TCP proxy process adjusts for propagation delays associated with the satellite path. Preferably, the TCP proxy resides in the uplink and the ground-based receiver that receives the bitstream data that is transported by the satellite, or by a router configured to provide such a TCP proxy process.
    Type: Application
    Filed: September 28, 2001
    Publication date: February 20, 2003
    Inventor: Mark Sullivan
  • Publication number: 20030035387
    Abstract: There is provided a route optimization method in a mobile Internet Protocol (IP) system using a mobile Internet Protocol. When a mobile host (MH) moves over the Internet and is assigned to a care-of-address (CoA) corresponding to a changed point of attachment to the Internet, it sends a registration request message containing the care-of address to a home agent (HA) via a foreign agent (FA). The home agent stores the care-of address in relation to a domain name of the mobile host in an internal domain name server database. Upon receipt of a query about the mobile host by domain name from a correspondent node (CN), the home agent sends the care-of address corresponding to the domain name of the mobile host together with caching prevention information to the correspondent node. The caching prevention information is set to prevent the correspondent node or another domain name server from caching the care-of address of the mobile host.
    Type: Application
    Filed: July 11, 2002
    Publication date: February 20, 2003
    Inventor: Kil-Lyeon Kim
  • Publication number: 20030035388
    Abstract: Systems and methods wirelessly communicate data over a plurality of cellular channels by sniffing for available frequency channels; requesting an allocation of preferably adjacent cellular frequency channels from a mobile station to a base station; and allocating available frequency channels in response to the request from the mobile station.
    Type: Application
    Filed: August 15, 2001
    Publication date: February 20, 2003
    Inventor: Dominik J. Schmidt
  • Publication number: 20030035389
    Abstract: A Method and System for Utilization of an Outer Decoder in a Broadcast Services Communication System is described. An outer decoder and an inner decoder encode a block of information to be transmitted, to improve protection by adding redundancy. The redundancy permits decoding of the information from less than a complete encoded block of information. Consequently, the receiving station determines when sufficient amount of information for successful decoding has been received, and utilizes the time remaining before the next block of information arrives to perform other activities, e.g., hard handoff on a broadcast channel, inter-frequency hard handoff, and other activities. Alternatively, the receiving station can cease reception, thus decrease power consumption. Furthermore, part of the information block may be utilized for transmission of signaling information.
    Type: Application
    Filed: August 20, 2001
    Publication date: February 20, 2003
    Inventors: Tao Chen, Jack K. Wolf, Joseph P. Odenwalder, Edward G. Tiedemann, Brian K. Butler, Yongbin Wei
  • Publication number: 20030035390
    Abstract: An automated system and method of establishing a local mobility domain (LMD) and a local mobility agent (LMA) on a mobile terminal node (MN) using Internet Protocol version (IPv6) preferably includes: establishing within the MN a newly contacted access router (AR) as the LMA and then receiving from the LMA and storing a list of neighboring ARs, which comprise the LMD. Each AR contains a stored list of neighboring ARs that are within a predetermined range of the AR, which is dynamically set by a network manager. The MN registers a retrieved local and regional address with both the LMA and a home agent (HA.) When the MN moves to a new AR, the stored list of the new AR is checked for the present LMA. The LMA is only changed to the new AR and re-registered with the HA if the new AR is in a different LMD.
    Type: Application
    Filed: July 29, 2002
    Publication date: February 20, 2003
    Inventors: Jin-hyeock Choi, Woo-shik Kang, Hyo-sun Hwang
  • Publication number: 20030035391
    Abstract: An ATM communication system has a connection setting section for controlling a plurality of ATM switches to set an n:n bidirectional ATM connection having n terminals of a plurality of constituent terminals as terminal points and using the VPI/VCI for identifying the n terminal points, and a process ID allocating section for allocating an MID as a process ID to a plurality of processes, executed by the n terminals for sending a message to the bidirectional ATM connection. The ATM communication system migrates a process executed on an arbitrary terminal to another terminal while keeping the process ID allocated to the processes. Where a dead-lock occurs due to that a process becomes a sleep state for the reason of that the bandwidth of a physical link is insufficient for executing in parallel the processes on the ATM communication system, the bandwidth of the physical link that a sleeping process occupies is intercepted to avoid a CAC dead-lock.
    Type: Application
    Filed: September 25, 2002
    Publication date: February 20, 2003
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventor: Yasuro Shobatake
  • Publication number: 20030035392
    Abstract: A combined signal is received over a shared spectrum in a time slot in a time division duplex communication system using code division multiple access. Each data signal experiences a similar channel response. The similar channel response is estimated. A matrix representing a channel of the data signals based on in part the estimated channel response is constructed. A spread data vector is determined based on in part a fast fourier transform (FFT) decomposition of a circulant version of the channel matrix. The spread data vector is despread to recover data from the received combined signal.
    Type: Application
    Filed: March 22, 2001
    Publication date: February 20, 2003
    Inventors: Jung-Lin Pan, Parthapratim De, Ariela Zeira
  • Publication number: 20030035393
    Abstract: Techniques for minimizing call setup latency are disclosed. In one aspect, a channel assignment message is sent with a flag to direct the use of previously negotiated service parameters. This aspect eliminates the need for service negotiation messages. In another aspect, a channel assignment message is sent with an active set identifier instead of an active set and its parameters. This aspect reduces the transmission time of the channel assignment message. In yet another aspect, call setup without paging is facilitated by a mobile station (106) sending a pilot strength measurement message between active communication sessions, such that a channel assignment message can be used for mobile station terminated call setup without the need for mobile station paging and related messages.
    Type: Application
    Filed: August 17, 2001
    Publication date: February 20, 2003
    Inventors: Ragulan Sinnarajah, Edward G. Tiedemann, Ramin Rezaiifar, Jun Wang, Duncan Ho
  • Publication number: 20030035394
    Abstract: A TTD system implements dynamic link adaptation by adding or changing control information to notify the receiver which timeslots and codes are currently active and which timeslots should be avoided. The system synchronizes the transmitter and the receiver such that the receiver knows which timeslots and codes the transmitter has used to map the coded composite transport channel onto physical channels. The system attempts to avoid the timeslots which are experiencing transmission difficulties, while attempting to utilize the timeslots which are not experiencing transmission problems.
    Type: Application
    Filed: December 21, 2001
    Publication date: February 20, 2003
    Applicant: InterDigital Technology Corporation
    Inventors: Eldad Zeira, Stephen E. Terry, Ariela Zeira
  • Publication number: 20030035395
    Abstract: Symbol 102 that is spread with the only short spreading code and inserted in synchronism with a long spreading code is specified by detecting the correlation with only the short spreading code. Next, another short spreading code indicative of a timing of reverse and forward link switching is specified, where the short spreading code is multiplexed at the same position as that of the detected symbol. The detection of the symbols spread with only these spreading codes enables to acquire synchronization of the long spreading code, synchronization of switching of reverse and forward links, and synchronization of a transmission frame. It is thereby possible to reduce synchronization acquisition time for the long spreading and an easy planning of base station locations without decreasing the frequency utilization efficiency.
    Type: Application
    Filed: September 27, 2002
    Publication date: February 20, 2003
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masaki Hayashi, Kazuyuki Miya, Osamu Kato
  • Publication number: 20030035396
    Abstract: An apparatus and method for transmitting packets having quality of service requirement wherein the quality of service requirements associated with the packets are received at an input, said quality of service parameters include at least one of delay, bandwidth, peak bandwidth and retransmission bandwidth The received quality of service parameters are mapped to radio protocol parameters including at least one of a priority slot interval, a priority slot phase, a packet duration and modulation format for the radio channel.
    Type: Application
    Filed: August 1, 2002
    Publication date: February 20, 2003
    Inventors: Jacobus Haartsen, Rakesh Taori
  • Publication number: 20030035397
    Abstract: A system, device and computer readable medium that monitors and reconfigures a LAN by a WAN operator is provided. In an embodiment of the present invention, a telecommunications operator monitors and manages devices and/or applications communicating with a wireless device, such as cellular telephone. In an embodiment of the present invention, a telecommunication operator adds LAN network services to microrouter 404 in a cellular telephone without user intervention. In an embodiment of the present invention, the cellular telephone has a Bluetooth™ processor and transceiver. In an embodiment of the present invention, microrouter 404 includes a Bluetooth™ LAN Access Profile software component, routing software component, PPP server software component and a NAT software component.
    Type: Application
    Filed: August 17, 2001
    Publication date: February 20, 2003
    Inventors: Amit Haller, Peter Fornell, Avraham Itzchak, Ziv Haparnas
  • Publication number: 20030035398
    Abstract: A layer 3 type wireless interconnecting device 4 connected to a LAN backbone line 1 is enabled to exchange packets with wireless terminals 7a˜7g via a cable connection type wireless interconnecting device 5, non-cable connection type wireless interconnecting devices 6A and 6B, and these wireless interconnecting devices 4, 5, 6A and 6B each are configured so that, in a case where a received packet is to be transmitted to the wireless terminals 7a˜7g belonging thereto, the packet is transmitted with a tag removed when the packet is tagged, while, when the packet is to be transferred, whether or not a VLAN identifier needs to be attached thereto is judged and the packet is transferred with a VLAN identifier attached thereto when necessary, and thereby a wireless VLAN is realized.
    Type: Application
    Filed: November 21, 2001
    Publication date: February 20, 2003
    Inventor: Takayuki Sato
  • Publication number: 20030035399
    Abstract: A wireless terminal connects, via wireless communication, with an AP having a relay function between a wireless LAN and other networks. The wireless terminal acquires from the AP configuration information required to configure the wireless terminal to use a particular network environment. The wireless terminal may further acquire from the AP configuration information required to configure particular software applications for use in a particular network environment. When connecting with the AP, the wireless terminal can automatically acquire the configuration information previously stored in a database. The configuration information includes, for example, configuration information required for the wireless terminal to connect with a wired LAN and configuration information required by particular software applications to run in the wired LAN environment.
    Type: Application
    Filed: July 23, 2002
    Publication date: February 20, 2003
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yasuhito Ishibashi, Takero Kobayashi
  • Publication number: 20030035400
    Abstract: A test circuit for testing an integrated circuit, includes a test signal input for receiving a test signal from the integrated circuit and a reference signal input for receiving a reference signal. A comparator is in communication with the test signal input and with the reference signal input. The comparator is configured to provide, at a comparator output, an error signal if a comparison between the reference signal and the test signal indicates an error. The error signal, if present, is stored in an error memory, in communication with the comparator output.
    Type: Application
    Filed: July 30, 2002
    Publication date: February 20, 2003
    Inventors: Frank Adler, Hartmut Berger
  • Publication number: 20030035401
    Abstract: In a communication between a mobile unit (UE) and a gateway general packet radio system (GGRS) support node (GGSN) wherein resource reservations setup protocol (RSVP) capabilities are shared therebetween by a session setup mechanism, preferably session initiation protocol (SIP) in which RSVP capabilities of the UE and GGSN are defined and exchanged. In addition, the SIP is utilized to identify the preferred RSVP mode of operation by negotiations. The SIP is utilized to indicate that: the UE is RSVP capable; those media flows which are based on RSVP; the preferred mode of operation i.e. either UE based RSVP signaling or GGSN proxy based RSVP signaling and to communication a final setup mode for RSVP signaling to the UE from policy control function (PCF). The SIP may also be employed to enable the UE and network to indicate intended quality of service (QoS) protocol during a call setup procedure.
    Type: Application
    Filed: August 13, 2002
    Publication date: February 20, 2003
    Applicant: InterDigital Technology Corporation
    Inventors: Kamel Shaheen, Brian Gregory Kiernan
  • Publication number: 20030035402
    Abstract: The present invention provides a matched filter circuit, which has a small circuit scale, and can save power. An after-stage section of the matched filter circuit has n hold circuit groups H21, H22, . . . H2n connected with an output signal Dout1 (i) of a pre-stage section in parallel, and the output of each hold circuit groups H21 to H2n is connected individually to each multiplier M21, M22, . . . M2n. Each multiplier multiplies the output of each hold circuit group H21 to H2m by each multiplier d21, d22, . . . d2m. The output of each multiplier circuit M21 to M2n is inputted to an adder circuit ADD2, and then, the total sum Dout2 (correlation output) is calculated.
    Type: Application
    Filed: January 16, 2002
    Publication date: February 20, 2003
    Inventors: Kunihiko Suzuki, Changmin Zhou
  • Publication number: 20030035403
    Abstract: A communication system supporting an HSDPA (High-Speed Downlink Packet Access) service. In order to transmit common information to at least two UEs (User Equipments) among a plurality of UEs supporting the HSDPA service, the system transmits control information including common ID information indicating the common information over a shared control channel (SHCCH), upon generation of the common information. The system transmits the common information over the SHCCH in a TTI (Transmission Time Interval) equal to or after a TTI where the control information is transmitted, so that the UEs can support the HSDPA service using the common information.
    Type: Application
    Filed: August 14, 2002
    Publication date: February 20, 2003
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sung-Ho Choi, Hyeon-Woo Lee, Ji-Weon Chang, Ju-Ho Lee, Kook-Heui Lee
  • Publication number: 20030035404
    Abstract: A global pilot and unwanted traffic signal canceler for a spread spectrum communication system receiver that reduces their contributive noise effects. The present invention effectively cancels the global pilot and unwanted, active traffic signals prior to decoding a desired traffic signal at the receiver. The system and method decreases the bit error rate (BER) yielding an increased signal-to-noise ratio.
    Type: Application
    Filed: October 8, 2002
    Publication date: February 20, 2003
    Applicant: InterDigital Technology Corporation
    Inventors: Fatih M. Ozluturk, Nadir Sezgin