Patents Examined by Douglas Olms
  • Patent number: 6804219
    Abstract: There is provided a data transmitting method in a CDMA system. In the CDMA system, a control hold state and an active state are set for data transmission between a mobile station and a base station. The control hold state is entered to transmit a control signal on a dedicated control channel and the active state is divided into a low rate transmission substate for transmitting a small amount of data on the dedicated control channel or/and a fundamental channel and a high rate transmission substate for transmitting a large amount of data on a supplemental channel and on at least one of the dedicated control channel and the fundamental channel.
    Type: Grant
    Filed: December 29, 2000
    Date of Patent: October 12, 2004
    Assignee: Samsung Electronics, Co., Ltd.
    Inventors: Chang-Hoi Koo, Hyun-Seok Lee, Dae-Gyun Kim, Hoon Chang, Sung-Won Lee
  • Patent number: 6804243
    Abstract: A Universal Serial Bus (USB) modem (14) in which reassembly and segmentation operations are performed outside of the host computer (12) is disclosed. A USB interface device (30) is coupled to a digital signal processor (DSP) (32) in the modem (14), and contains a shared memory (44) in which bulk endpoints (240) are established, at which ATM packet header and payload data are stored prior to transmission. An ATM transmit controller (132) retrieves the header portion of the ATM packet from a transmit endpoint (240) and stores the information in registers (252, 254, 256) in the ATM transmit controller (132). A four-byte ATM cell header is then transmitted to byte buffers (268) and to the DSP (32) for transmission over the communications facility. Afterwards, payload data is retrieved from the transmit endpoint (240) in shared memory (44), and forwarded to byte buffers (268) for transmission.
    Type: Grant
    Filed: February 18, 2000
    Date of Patent: October 12, 2004
    Assignee: Texas Instruments Incorporated
    Inventors: Norayda N. Humphrey, Magnus G Karlsson, Gregory Lee Christison
  • Patent number: 6801540
    Abstract: An internet phone-based private exchange and a call signal exchanging method thereof employing a network protocol unit, a call signal detecting/determining unit, a call converting unit which matches a protocol of the call signal from the call transmitting terminal with a protocol of a call signal supporting a receiving terminal which is to be connected by the call transmitting terminal when the protocol of the call signal of the call transmitting terminal and that of the receiving terminal are different, and a task managing unit which inputs the call signals of the call transmitting terminals from the gate keepers and transmits IP addresses of the receiving terminals which are to be connected by the call transmitting terminals to the terminal gate keepers.
    Type: Grant
    Filed: August 4, 2000
    Date of Patent: October 5, 2004
    Assignee: LG Electronics Inc.
    Inventor: Man Su Jeong
  • Patent number: 6798737
    Abstract: A station capable of receiving information containing Walsh coding for a plurality of channels and canceling interference from the received information and the method of cancellation. A memory is provided for storing received signals containing a Walsh code for each of a plurality of channels as well as reflected and/or refracted versions of said received signals and a first plurality of signal paths is provided which are selectively coupled to the memory. The signal paths apply corresponding delays and inverse Walsh code transformations to separate the channels. Further, cancellation of the channels interfering with a desired channel proceeds with complementary delays and Walsh code transformation to regenerate the interference which is subtracted from the received signal in memory.
    Type: Grant
    Filed: October 6, 1999
    Date of Patent: September 28, 2004
    Assignee: Texas Instruments Incorporated
    Inventors: Anand G. Dabak, Srinath Hosur, Timothy M. Schmidl
  • Patent number: 6798785
    Abstract: A system and method of implementing interworking function (IWF) between frame relay and IP protocols and networks. The interworking function provides mapping and encapsulation functions necessary to ensure service provided to networks/protocols is unchanged. A frame relay service specific convergence sublayer (FR-SSCS) translates between the Q.922 and UDP/IP sublayer.
    Type: Grant
    Filed: February 7, 2000
    Date of Patent: September 28, 2004
    Assignee: Axerra Networks, Ltd.
    Inventors: Israel Sasson, Gonen Zilber, Gil Biran
  • Patent number: 6795408
    Abstract: An improved technique for networking multiple users for retrieving data information from various data sources provides a less costly method for retrieving information while aboard a transportation vehicle, such as, for example, an aircraft. The data communications system may be carried out in one form by a data communications system having a data source, a server/router coupled to the data source and adapted to request data information from the data source, and an information distribution system coupled to the server/router and adapted to receive the data information requested from the data source.
    Type: Grant
    Filed: December 30, 1999
    Date of Patent: September 21, 2004
    Assignee: Honeywell International Inc.
    Inventor: John H. Hiett
  • Patent number: 6795437
    Abstract: The invention relates to an interconnection between different types of communications networks. A first core network element is connected to a first access network by means of a first protocol stack used between the first core network element and a network element in the first access network. A second core network element is connected to a second access network by means of a second protocol stack used between the second core network element and a network element in the second access network. The first core network element is arranged to support and use at least parts of the second protocol stack towards the second core network element, and the second core network element is adapted to extend the parts of the second protocol stack towards the first core network element.
    Type: Grant
    Filed: April 18, 2002
    Date of Patent: September 21, 2004
    Assignee: Nokia Corporation
    Inventors: Juha Räsänen, Mikko Ohvo, Tommi Turunen
  • Patent number: 6791980
    Abstract: A system, device, and method for reducing the number of multicast routes maintained in a multicast routing information base aggregates a group of multicast routes and installs a single policy route for the group of multicast routes. The policy route is utilized as a default multicast route when no more-specific multicast route is available for one of the aggregated multicast routes. The policy routes are collected and distributed by a bootstrap device, preferably using a special bootstrap message.
    Type: Grant
    Filed: October 28, 1999
    Date of Patent: September 14, 2004
    Assignee: Nortel Networks Ltd
    Inventor: Yunzhou Li
  • Patent number: 6791970
    Abstract: A system and method for establishing a communication link between an internet telephony device and a PSTN telephone during a user registration period comprises receiving data from a user indicating a plurality of frequently called countries, accessing a gateway provider table comprising data on a plurality of gateway providers that provide service to the plurality of frequently called countries, determining the lowest cost gateway provider for the plurality of frequently called countries, and displaying to the user information on the lowest cost gateway provider for the plurality of frequently called countries.
    Type: Grant
    Filed: September 16, 1999
    Date of Patent: September 14, 2004
    Assignee: Mediaring Ltd.
    Inventors: Ede-Phang Ng, Wee Sin Tam
  • Patent number: 6791994
    Abstract: A method and apparatus for the receiver directed assignment of receive slots in a dynamic assignment communication system. The apparatus including a memory component storing communication assignment data for a plurality of time slots in a time multiplex structure and a processor component capable of identifying a set of available time slots from the plurality of time slots. The apparatus being capable of assigning itself a receive slot, which can be a broadcast receive slot, from the set of available time slots. The method involves establishing a network wherein network communication is accomplished via assignment of specific time slots of a time multiplex structure. The method further involves determining a set of available time slots suitable for reception, by a receiving node, of a communication from a neighboring node, the receiving node then assigning to itself a receive slot from the set of available time slots.
    Type: Grant
    Filed: April 19, 2000
    Date of Patent: September 14, 2004
    Assignee: Rockwell Collins, Inc.
    Inventors: C. David Young, Edgar L. Caples, Jeffrey A. Barton, James A. Stevens
  • Patent number: 6788657
    Abstract: In a UMTS network in which a single user can transmit or receive a number of services having different transmission power requirements over a single channel, a method of determining for each service the number of bits to be punctured or repeated to provide rate matching by the steps of deriving for each service the Energy per Bit per Noise density EB/NO required to achieve a desired Bit Error Rate; from each EB/MO deriving a value of the Energy per coded Symbol per Noise density ES/NO; and from ES/NO deriving a rate matching factor by which that ES/NO can be matched to the minimum Energy per coded Symbol per Noise density applicable to the channel in which to the services are multiplexed.
    Type: Grant
    Filed: July 6, 2000
    Date of Patent: September 7, 2004
    Assignee: Lucent Technologies, Inc.
    Inventors: Lorenz Fred Freiberg, Jens Muechkenheim
  • Patent number: 6785260
    Abstract: The present invention permits quality-of-service routing without using any flow pinning or per-flow state mechanisms. In accordance with the present invention, load insensitive routing techniques are utilized for QoS traffic while load sensitive routing techniques are utilized for best effort traffic. In accordance with a preferred embodiment of the present invention, conventional static shortest path routing is utilized for flows that require QoS guarantees while known QoS routing techniques are utilized for best effort flows. Unlike the prior art, a single queue per class per link can be utilized at a network node. The present invention has numerous advantages over the prior art including reduced protocol overhead, lower cost, and reduced route instability.
    Type: Grant
    Filed: December 18, 1999
    Date of Patent: August 31, 2004
    Assignee: A.T.&T. Corp.
    Inventors: Pawan Goyal, Gisli Hjalmtysson
  • Patent number: 6785288
    Abstract: An asymmetric network system manages bandwidth allocation and configuration of remote devices in a broadband network. A modular architecture of the system permits independent scalability of upstream and downstream capacity separately for each of the upstream and downstream physical paths. Allocation of downstream bandwidth to requesting devices is made according to bandwidth utilization by other devices, bandwidth demand by the requesting remote device, class or grade of service by the requesting remote device or bandwidth guaranteed to other remote devices.
    Type: Grant
    Filed: July 5, 2000
    Date of Patent: August 31, 2004
    Assignee: Hybrid Patents Incorporated
    Inventors: Frederick Enns, Eduardo J. Moura, Jan Maksymilian Gronski, Ramesh Neelmegh, Jong C. Kim
  • Patent number: 6785273
    Abstract: The present invention presents methods and apparatus supporting traffic engineering in a connectionless protocol network constituted by a core of plain routers, without dependencies on the underlying link protocol. The IP is used as an example of a connectionless protocol. It also enables a network operator to perform traffic engineering on a core network of plain routers supporting any connectionless protocol.
    Type: Grant
    Filed: March 20, 2000
    Date of Patent: August 31, 2004
    Assignee: International Business Machines Corporation
    Inventor: Dinesh Chandra Verma
  • Patent number: 6781955
    Abstract: A method for optimizing call service in a VLAN including at least one Voice over Internet Protocol device involves determining the current traffic levels of the VLAN, then adjusting the priority handling of data packets in the VLAN in relationship to current traffic levels so that voice packets receive an optimum number of network resources. Default priorities are used when level of traffic is in a normal range. During times when network traffic is below the normal range, signaling data packets may be increased in priority and when network level of traffic is above the normal range, the priority of all data packets except for voice data packets will be decreased.
    Type: Grant
    Filed: December 29, 2000
    Date of Patent: August 24, 2004
    Assignee: Ericsson Inc.
    Inventor: Mun Keung Leung
  • Patent number: 6778537
    Abstract: This invention enables the digital broadcast receiving section to restore the reception timing even in a system incapable of guaranteeing the real-time feature of digital broadcast data as far as the 1394 Link. The digital broadcast signal received by the RF section and tuner section is restored to ATM cells at the packeting section. The ATM cells are then sent to the time stamp adding section, which adds the arrival time to the ATM cells. The CPU extracts, as a time stamp, the arrival time of the first ATM cell in each transport packet and creates a 4-byte source packet header on the basis of the value of the arrival time and the value of the CTR in the 1394 Link.
    Type: Grant
    Filed: July 14, 2000
    Date of Patent: August 17, 2004
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Yasuhiro Ishibashi
  • Patent number: 6778504
    Abstract: A bulk Soft Permanent Virtual Circuit (SPVC) trace processor is provided. The bulk SPVC trace processor receives notifications of newly established SPVCs and SPVC re-routing instances. The bulk SPVC trace processor submits SPVC connection trace commands to corresponding trace source network nodes, and retrieves trace transit list information therefrom. The aggregate SPVC transport path information derived from trace transit list information is stored and provided to higher network management and service provisioning functions. The bulk SPVC trace processor may also be employed to trace SPVC portions of Hybrid SPVCs. As SPVC connection tracing is necessary subsequent to a failure, load balancing techniques are used to spread SPVC connection tracing over time, network resources, and network partitions to prevent weighting down the network. Network planning and design functions previously built for Permanent Virtual Circuit (PVC) provisioning may be seamlessly upgraded in migrating to (H)SPVC connectivity.
    Type: Grant
    Filed: December 13, 2002
    Date of Patent: August 17, 2004
    Assignee: Alcatel Canada Inc.
    Inventors: James Matthew Santry, Kevin Scott Cutler, Craig Murray Mansell Wilson, Gerald Bloch
  • Patent number: 6778538
    Abstract: The present invention guarantees that voice data (and other information types) will switch within a predetermined time period. Systems and methods consistent with the present invention accomplish this guarantee by, among other things, establishing permanent virtual paths or circuits between each network element, guaranteeing each voice line a slot in a packet in each frame, employing both octet switching and packet switching, synchronizing the operation of the network elements to a reference clock, and providing several levels of network redundancy.
    Type: Grant
    Filed: December 30, 1998
    Date of Patent: August 17, 2004
    Assignee: Nortel Networks Limited
    Inventors: Denny Landaveri, Michel Khouderchah, Cheng Hsiang
  • Patent number: 6775259
    Abstract: In a cellular system information is transmitted from a base station (100, 400) to a terminal (101, 500). Between the base station and the terminal there is defined a paging channel (110) in order to transmit requests for establishing downlink connections, and a broadcast control channel (108, 109) in order to transmit general information concerning the base station's cell. General information concerning the base station's cell is transmitted on the paging channel (110) when the paging channel's (110) information transmission capacity is higher than the total amount of information which has to be transmitted regarding the requests to establish downlink connections.
    Type: Grant
    Filed: December 29, 1998
    Date of Patent: August 10, 2004
    Assignee: Nokia Mobile Phones Limited
    Inventor: Jukka Tapio Ranta
  • Patent number: 6771632
    Abstract: Sub-channels are defined for a physical random access channel of a wireless time division duplex communication system using code division multiple access. The sub-channels carry information between system users and a system network. A series of radio frames have a sequence of timeslots. For a particular timeslot number of the sequence, each sub-channel of the particular timeslot number is uniquely defined by one radio frame of the series.
    Type: Grant
    Filed: December 12, 2001
    Date of Patent: August 3, 2004
    Assignee: InterDigital Technology Corporation
    Inventors: Stephen G. Dick, Ana Lucia Iacono, Janet Stern-Berkowitz