Patents Examined by Salvatore Cangialosi
  • Patent number: 6885653
    Abstract: Disclosed is a channel allocation method in a CDMA communication system. The method comprises receiving from a UTRAN one SF node CSF,k out of 2m?1 SF nodes (where m is an integer larger than 3) arranged in the form of a tree having a mother node and child nodes; searching a group including the received SF node CSF,k in accordance with Formula (1) below; spreading a signal on a dedicated physical data channel (DPDCH) with an OVSF code corresponding to a selected one of the received SF node and its child nodes in the searched group; and spreading a signal on a dedicated physical control channel (DPCCH) with an OVSF code corresponding to an SF node determined by Formula (2) below based on the received SF node.
    Type: Grant
    Filed: January 17, 2001
    Date of Patent: April 26, 2005
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sung-Ho Choi, Chang-Soo Park, Jae-Yoel Kim, Seong-III Park, Ki-Ho Jung, Ho-Kyu Choi, Hyun-Woo Lee, Yong-Jun Kwak, Kook-Heui Lee
  • Patent number: 6876985
    Abstract: A patient information management method having a configuration described below is provided that makes it possible to provide efficiently patient information to an appropriate partner while maintaining the secret thereof. In a storage management device, patient information is encrypted so that it can be decrypted when both patient ID information and a password decided by a patient are used. The encrypted patient information is stored in a storage device. The storage management device issues a use request to the storage device to receive encrypted patient information, and uses patient ID information and a password to decrypt it for use.
    Type: Grant
    Filed: May 16, 2002
    Date of Patent: April 5, 2005
    Assignee: GE Medical Systems Global Technology Company, LLC
    Inventor: Tatsuo Kawanaka
  • Patent number: 6876658
    Abstract: A communications process and apparatus is provided with scoped, partially non-geographic addressing. The processes are carried out by one or more switches in a communications system. A first device in the system has a scoped address, including at least one geographic identifier and a customer identifier. A second device sends a setup message with addressing information to a switch in the system. The switch examines the message and consults a database with the customer identification to determine forwarding information. The switch forwards the message to a second device according to the forwarding information obtained from the database. The second device sends a connect message to the first device, thereby establishing a connection.
    Type: Grant
    Filed: December 12, 2000
    Date of Patent: April 5, 2005
    Assignee: BellSouth Intellectual Property Corporation
    Inventor: Robert V. Epley
  • 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: 6873608
    Abstract: The system utilizes host signal processing techniques applicable to cellular communication system devices which are integrated with a system incorporating a general purpose CPU running a multitasking operating system. A RF receiver processes the signals to generate a receive signal, the RF module performs RF transmit processing on a transmit signal and generates the transmit wireless signal from it. A host processor communicates data, status and control information with the RF device via a bus, the host processor includes host based software application and a host based modem application. The receive signal generated by the RF module over the bus and generates receive data in response to it input to the software application at a output by the software application is received and generates the transmit signal in response to it, sending the transmit signal to the RF module over the bus. The figure shows a block diagram illustrating an analog cellular communications systems tuned for data communication.
    Type: Grant
    Filed: August 6, 1998
    Date of Patent: March 29, 2005
    Assignee: Comsys Communication & Signal Processing LTD
    Inventors: Eli Plotnik, Ophir Shabtai
  • Patent number: 6870811
    Abstract: The decision to discard or forward a packet is made by a flow control mechanism, upstream from the forwarding engine in the node of a communication network. The forwarding engine includes a switch with mechanism to detect congestion in the switch and return a binary signal B indicating congestion or no congestion. The flow control mechanism uses B and other network related information to generate a probability transmission table against which received packets are tested to determine proactively whether a packet is to be discarded or forwarded.
    Type: Grant
    Filed: January 18, 2001
    Date of Patent: March 22, 2005
    Assignee: International Business Machines Corporation
    Inventors: Kenneth James Barker, Gordon Taylor Davis, Clark Debs Jeffries, Mark Anthony Rinaldi, Kartik Sudeep
  • Patent number: 6868069
    Abstract: A device that passively monitors arriving and departing data packets on one or more networks, correlates arriving data packets with departing data packets, and calculates a latency estimate based on the confidence of the correlation. The device detects and copies data packets arriving at a network device and the data packets departing from the same network device. A timestamp is stored for each arriving or departing data packet. Latency across a network device can be determined based on the timestamps for correlating data packets. Additionally, latency across a network device per protocol layer can also be calculated. Varying levels of confidence of a latency estimation depend on the operation necessarily performed on the data packet by the network device and the protocol level at which correlation between the arriving and departing data packets can be achieved.
    Type: Grant
    Filed: January 16, 2001
    Date of Patent: March 15, 2005
    Assignee: Networks Associates Technology, Inc.
    Inventors: Roger Knobbe, Stephen Schwab, Andrew Purtell
  • Patent number: 6865152
    Abstract: A network driver for transmitting packets. For a particular embodiment the driver receives an indication that a packet is available for transmission and monitors a packet pending transmission status of a network controller. The driver then indicates to the network controller that the packet is available for transmission only when the pending transmission status in one particular embodiment reaches a threshold value. Thus the driver determines how many packets to provide a network controller based on the amount of packets still waiting to be transmitted by the controller.
    Type: Grant
    Filed: December 15, 2000
    Date of Patent: March 8, 2005
    Assignee: Intel Corporation
    Inventors: Patrick J. Luhmann, Patrick L. Connor
  • Patent number: 6865162
    Abstract: A method and apparatus for elimination of clipping associated with VAD-directed silence suppression includes receiving a voice signal in a buffer during the delay between the start of voice activity and the detection of the voice activity. Then, the voice signal is played from the buffer in condensed form, e.g., by dropping packets or slightly accelerating playback of the signal from the buffer. After voice activity is detected, the voice signal may continue to be buffered and condensed until the buffer is completely depleted. The voice signal may then be transmitted directly, without being buffered or condensed.
    Type: Grant
    Filed: December 6, 2000
    Date of Patent: March 8, 2005
    Assignee: Cisco Technology, Inc.
    Inventor: Alexander Clemm
  • Patent number: 6862279
    Abstract: A multicast distribution system of packet comprises routers connected with each other by a cable. Nodes are connected to each of the routers. The routers or the nodes is provided with a unit for relaying a packet having a list of the plurality of destination addresses and its undistributed bit map to the packet header to be transferred, according to the unicast route.
    Type: Grant
    Filed: June 9, 2000
    Date of Patent: March 1, 2005
    Assignee: Fujitsu Limited
    Inventors: Yuji Imai, Masanobu Yuhara
  • Patent number: 6859453
    Abstract: Methods, apparatuses, media and signals for providing clear channel access on a network are disclosed. A first method involves receiving a communication signal from a remote network element. The communication signal includes a previous transport overhead (PTOH) portion indicative of transport overhead contents of the communication signal prior to arrival at the remote network element, and a previous path error (PPE) portion indicative of path errors present in the communication signal at the remote network element. The method then involves modifying a transport overhead portion of the communication signal in response to the PTOH and PPE portions.
    Type: Grant
    Filed: December 19, 2000
    Date of Patent: February 22, 2005
    Assignee: Nortel Networks Limited
    Inventors: LeRoy L. Pick, David C. Steele, Evert E. Deboer
  • Patent number: 6859437
    Abstract: A system and method for extending the reach of a data communication channel using flow control interception devices is described. The method decreases the latency-induced reduction in the data throughput and permits data transmission at subrates through the data communication channel. The method includes transmitting a data frame from a sending device. The data frame is transmitted through the data communication channel if a flow control signal is not asserted. The data frame is buffered if the flow control signal is asserted. The buffered data frame is transmitted through the data communication channel in response the flow control signal changing to an asserted state. The method also includes receiving the transmitted data frame from the data communication channel and transmitting the received data frame to a receiving device if the receiving device is available to process the data frame.
    Type: Grant
    Filed: March 5, 2003
    Date of Patent: February 22, 2005
    Assignee: Nortel Networks Limited
    Inventors: Pierre Miller, Bernard Marchand, Marc W. Leclair
  • Patent number: 6845094
    Abstract: In an end to end fully internet protocol (IP) enabled network, a dynamic IP address space is used to address mobile hosts in order to facilitate mobility management. The network includes a wireless mobile network having a plurality of base stations each being associated with a portion of the dynamic IP address space. The base stations are operative to allocate dynamic IP addresses from the associated portion of the dynamic IP address space for each authenticated mobile host. Each of the base stations provides translation between the dynamic IP address space and a permanent IP address space so that the dynamic IP address space is transparent from the point of view of the mobile hosts. A gateway provides communicative coupling between the backbone of the wireless mobile network and a wire lined IP network. The gateway also provides translation between the dynamic IP address space and the permanent IP address space.
    Type: Grant
    Filed: December 15, 2000
    Date of Patent: January 18, 2005
    Assignee: UT Starcom, Inc.
    Inventor: Greg Zhang
  • Patent number: 6839358
    Abstract: In a relaying apparatus comprising input side accommodating portions including input side queues, a plurality of output side accommodating portions including output side queues, and a switch fabric for mutually connecting the input side queues and the output side queues in a mesh form, in a time slot of a fixed period, the output side-addressed queue managers corresponding to the output side accommodating portions select a bandwidth guaranteed packet so as to guarantee a bandwidth, and output priority/non-priority signals for indicating which of the bandwidth guaranteed packet and a bandwidth non-guaranteed packet has been selected, and output demand signals of the packet. An inter-output link manager selects the packet having an empty area in the priority queue or non-priority queue of the output side accommodating portion as a destination corresponding to the packet which is demanded to be outputted.
    Type: Grant
    Filed: March 14, 2001
    Date of Patent: January 4, 2005
    Assignee: Fujitsu Limited
    Inventors: Kenichi Abiru, Kensaku Amou, Yan Xu
  • Patent number: 6826192
    Abstract: Disclosed is an interface apparatus in a communication network for converting a frame, which has been received from a digital transmission line and has overhead and a payload, to ATM cells, assembling a frame using ATM cells that have been received from an ATM network, and sending the assembled frame to a digital transmission line. The apparatus includes cell conversion zone specifying means for defining, as a cell conversion zone, the smallest possible portion of a frame that contains the overhead data and payload, and generating a signal that specifies the cell conversion zone; pointer creation means for creating a pointer which specifies a predetermined position of the cell conversion zone as a reference position; and cell conversion means for converting data in the cell conversion zone into cells based upon the signal that specifies the cell conversion zone, and for inserting this pointer, which indicates the reference position of the cell conversion zone, in a prescribed cell.
    Type: Grant
    Filed: January 19, 2001
    Date of Patent: November 30, 2004
    Assignee: Fujitsu Limited
    Inventors: Akira Shimamura, Yoshihiro Uchida, Makoto Adachi, Yoshiyuki Tokoi, Hirotoshi Mori, Hajime Yamashita
  • Patent number: 6826197
    Abstract: A data packet structure capable of efficiently propagating a payload through a multi-user, digital video distribution system. The system is capable of delivering multimedia data (video and audio information) using the Moving Picture Expert Group (MPEG) packets as payload within a unique packet structure. The packet structure enables routing of the packets through a variety of network topologies. Specifically, the packet structure comprises a packet header, a routing information field, a private data field, digital data payload, and an error correction code field. Such a packet structure enables the network to deliver digital video through a point-to-point, star, ring, dual ring, and other network topologies to a user that is identified in the routine information field.
    Type: Grant
    Filed: December 10, 1999
    Date of Patent: November 30, 2004
    Assignee: Sedna Patent Services, LLC
    Inventors: Christopher W. B. Goode, Yong Ho Son, Danny Chin, Steve Zack
  • Patent number: 6816495
    Abstract: A communication network including connection switching exchanges, such as an ATM, a connection management apparatus is provided in a network management unit of a communication network. A group of logical connections with a fixed group size and consecutive identifiers assigned to the connections is treated as a unit. The number of logical connections in the group is an integer with a power of 2. The logical connections and connection identifiers assigned to the logical connections are set up and released in connection setting units each equal to a multiple of the group size in a unitary manner across the network. A priority level is assigned to each connection setting unit. When logical connections have been set for connection setting units sharing the same connection identifiers, logical connections with the shared connection identifiers pertaining to a connection setting unit with a smaller size is considered to be valid.
    Type: Grant
    Filed: February 6, 2002
    Date of Patent: November 9, 2004
    Assignee: Hitachi, Ltd.
    Inventors: Takashi Nishikado, Kenji Kawakita, Takanori Miyamoto
  • Patent number: 6816501
    Abstract: Method and system for mapping channels into a convolutional encoded time division multiplex in the downlink. In a transmission system comprising a plurality of stations, each station transmits in at least one channel, forming a plurality N of uplink channels that are transmitted, at an uplink information bit rate Ru, towards a destination station. Said destination station transmits in at least one downlink channel at a downlink information bit rate Rd, in such a manner that the relation Rd=N*Ru is satisfied. The number of the uplink channels N varies as a function of a change in a convolutional code rd applied to the downlink channel, so that N is an integer multiple of said variable convolutional code rd.
    Type: Grant
    Filed: March 16, 2001
    Date of Patent: November 9, 2004
    Assignee: Alcatel
    Inventors: Fernando Ortega Rodriguez, Josep Prat Aparicio, Ma Africa Rodriguez Martinez
  • Patent number: 6813284
    Abstract: A method and system that enables multiplexing a plurality of data streams onto one data stream based on data stream priorities, available transport format combinations (TFCs), and transmission time interval (TTI) constraints of transport frames within the TFCs is disclosed. A subscriber unit has applications that produce separate data streams. Example applications include voice, signaling, E-mail and web applications. The data streams are combined by a multiplexer module into one data stream called the transport stream. The transport stream is sent over the reverse link to base station transceivers (BTS). The multiplexer module multiplexes the data streams onto a single stream according to available TFCs, TTI constraints, and data stream priorities.
    Type: Grant
    Filed: January 17, 2001
    Date of Patent: November 2, 2004
    Assignee: Qualcomm Incorporated
    Inventors: Alkinoos Vayanos, Francesco Grilli, Peng Li
  • Patent number: 6810021
    Abstract: An entry processing unit enters into a table the frame information and the reception time of a frame received by a frame reception unit. Upon the receipt of a frame by the frame reception unit, a loop judgment unit refers to the table to detect a second reception of the same frame to thereby judge the occurrence of a loop. Based on this judgment, the frame processing unit discards the received frame without sending the same, to obviate the occurrence of an infinite loop.
    Type: Grant
    Filed: October 26, 2000
    Date of Patent: October 26, 2004
    Assignee: Fujitsu Limited
    Inventor: Hideshi Sakurai