Patents Examined by Edan D. Orgad
  • Patent number: 7339943
    Abstract: An apparatus is described that includes a plurality of queuing paths. Each of the queuing paths further comprises an input queue, an intermediate queue and an output queue. The input queue has an output coupled to an input of the intermediate queue and the input of the output queue. The intermediate queue has an output coupled to the input of the output queue. The intermediate queue receives data units from the input queue if a state of the input queue has reached a threshold. The output queue receives data units from the intermediate queue if the intermediate queue has data units. The output queue receives data units from the input queue if the intermediate queue does not have data units.
    Type: Grant
    Filed: May 10, 2002
    Date of Patent: March 4, 2008
    Assignee: Altera Corporation
    Inventors: Neil Mammen, Greg Maturi, Mammen Thomas
  • Patent number: 7324482
    Abstract: General binary design criteria for PSK-modulated space-time codes are provided. For linear binary PSK (BPSK) codes and quadrature PSK (QPSK) codes, the rank (i.e., binary projections) of the unmodulated code words, as binary matrices over the binary field, is used as a design criterion. Fundamental code constructions for both quasi-static and time-varying channels are provided.
    Type: Grant
    Filed: January 13, 2004
    Date of Patent: January 29, 2008
    Assignee: The DIRECTV Group, Inc.
    Inventors: A. Roger Hammons, Jr., Hesham El Gamal
  • Patent number: 7324449
    Abstract: Various embodiments are described to address the need to lower backhaul costs for EGPRS operators while maintaining the low and constant delay characteristics they require. 20 msec TRAU frames (221-226) are still used for backhaul to maintain the low and constant delay. However, to eliminate the restriction of mapping TRAU timeslots to air timeslots (211-218) one-to-one, the TRAU slots are collectively treated as a one large 20 msec TRAU frame for a group of air timeslots. The data for the air timeslots can be packed efficiently into this giant TRAU frame, ignoring backhaul timeslot boundaries. In this way, the appropriate amount of backhaul for the carrier can be allocated and the data for the air interface timeslots more efficiently packed into the backhaul.
    Type: Grant
    Filed: March 11, 2004
    Date of Patent: January 29, 2008
    Assignee: Motorola, Inc.
    Inventors: Jeffrey C. Smolinske, Jyoti N. Black
  • Patent number: 7324502
    Abstract: A system for mapping dissimilar communication protocols is disclosed. In one embodiment, the system comprises user communication information that spans at least two dissimilar communication networks, a first communication protocol associated with a first communication network, a second communication protocol associated with a second communication network, and a software code segment configured to detect a call setup identifier and a call tear-down identifier associated with the first communication protocol, the software code segment also configured to detect a call setup identifier and call tear-down identifier associated with the second communication protocol, where the call setup identifier and the call tear-down identifier associated with the second communication protocol may occur within a predetermined amount of time before or after the call setup identifier or the call tear-down identifier associated with the first communication protocol.
    Type: Grant
    Filed: May 20, 2002
    Date of Patent: January 29, 2008
    Assignee: Agilent Technologies, Inc.
    Inventors: David Charles Sheldon, David John McDonald, Douglas John Carson
  • Patent number: 7304998
    Abstract: A fixed length data processing apparatus has a registration holding unit holding registration information necessary to identify fixed length data that is an object of a processing commonly to transmission routes, and a data processing unit identifying whether received fixed length data is fixed length data that is an object of the processing or not on the basis of at least the registration information in the registration information holding unit to perform a data processing for fault management in the asynchronous communication on the basis of the fixed length data when identifying that the fixed length data is fixed length data that is an object of a processing correspondingly to the transmission route, thereby holding a large volume of information efficiently for identifying fixed length data to process fixed length data with a simple structure.
    Type: Grant
    Filed: June 23, 2003
    Date of Patent: December 4, 2007
    Assignee: Fujitsu Limited
    Inventors: Kazuhisa Kada, Hiroshi Murakawa, Shigehisa Sakahara, Hidenori Kiuchi, Hideaki Mochizuki, Ritsuko Okura
  • Patent number: 7301955
    Abstract: The present invention is directed to a method and apparatus for preparing a transmission schedule that when utilized results in the smooth transmission of a time-sensitive file over a communications network. According to one embodiment of the invention, for each frame, each potential ambiguity zone is analyzed to determine whether it would result in a feasible transmission, and the cost of each feasible ambiguity zone is found. Thereafter, the optimal feasible ambiguity zone for the frame is found and used to create a transmission schedule. A method for transmitting a file utilizing such a transmission schedule is also described.
    Type: Grant
    Filed: October 7, 2002
    Date of Patent: November 27, 2007
    Assignee: Sprint Communications Company L.P.
    Inventors: Christos Tryfonas, Mike O'Brien, Jay Cee Straley, Sandy Cuskaden
  • Patent number: 7298717
    Abstract: A method and apparatus are provided that uses the feedback information from an ARQ signal that is received to control the transmit diversity of a transmitter. The method provides for improved performance over some existing ARQ plus open loop transmit diversity schemes in terms of bit-error rate for a given Eb/No. Furthermore, the method does not require extra signaling used by closed loop TD schemes.
    Type: Grant
    Filed: February 15, 2002
    Date of Patent: November 20, 2007
    Assignee: Texas Instruments Incorporated
    Inventors: Yan Hui, Eko N. Onggosanusi, Gibong Jeong, Anand Ganesh Dabak
  • Patent number: 7298752
    Abstract: A reliable packet communication device capable of flexibly adding new functions. A packet communication device is composed of multiple interface elements (IFEs), switching elements (SWE) connecting these IFEs, and a routing manager element (RME) and may also if necessary comprise special functional packet processors (xFPs) capable of different special functions. The interface element and special functional packet processor are connected by a logical bus. For the purpose of connecting the interface elements and special functional packet processors through the switching element when the logical bus has a failure, the logical bus data format is made identical to the data format for passing data through the switch element and a selection circuit is installed in the interface element for selectively sending and receiving data to/from either the logical bus or the switching element.
    Type: Grant
    Filed: January 10, 2003
    Date of Patent: November 20, 2007
    Assignee: Hitachi, Ltd.
    Inventors: Norihiko Moriwaki, Koji Wakayama
  • Patent number: 7295563
    Abstract: A method of routing packets includes receiving a first packet, where the first packet has a first ordering requirement with respect to a prior packet that was received before the first packet, allocating a first entry that corresponds to the first packet in a scheduler, where the first entry includes a first indication of the first ordering requirement, and in response to the first indication, selecting the first entry corresponding to the first packet if one or more first resources used by the first packet and one or more second resources that are used by the prior packet but not by the first packet are available. As long as older entries whose resources are available are selected before newer entries, the first entry will be selected after the prior packet's entry due to the inclusion of the first indication in the first entry.
    Type: Grant
    Filed: October 1, 2001
    Date of Patent: November 13, 2007
    Assignee: Advanced Micro Devices, Inc.
    Inventor: William Alexander Hughes
  • Patent number: 7295536
    Abstract: A wireless terminal and a first node communicate according to a first radio configuration of a first set of radio configurations supported by the first node. A second radio configuration that is available for a second node that supports a second set of radio configurations that is different from the first set of radio configurations is then identified. The wireless terminal and respective ones of the first and second nodes then simultaneously communicate according to the identified second radio configuration. In other embodiments, a wireless terminal is handed off from a first base station to a second base station based on a determination of whether a common radio configuration is available for the first and second base stations. Related wireless communications systems and wireless terminal apparatus are also described.
    Type: Grant
    Filed: January 4, 2001
    Date of Patent: November 13, 2007
    Assignee: Ericsson Inc.
    Inventors: Wail Refai, Essam Sourour
  • Patent number: 7277457
    Abstract: A method (500) and system for compensation of frequency offset between a first transceiver (102) and a second transceiver (104) in wireless communication are disclosed. The compensation of the frequency offset between two or more transceivers (102, 104) is achieved using frequency synchronization bursts. These bursts contain information about the frequency offset. The frequency synchronization bursts are transmitted by the first transceiver at a range of frequencies above and below its carrier frequency (502). A second transceiver that receives at least one of these bursts (504) determines the frequency offset (504), and adjusts its frequency to match the frequency of the first transceiver (508). Thereafter, the second transceiver may enter a low power sleep mode (510) in order to reduce its power consumption. The second transceiver returns to active mode (512) just before the start of the transmission of the data packets (514).
    Type: Grant
    Filed: October 3, 2003
    Date of Patent: October 2, 2007
    Assignee: Motorola, Inc.
    Inventors: Paul E. Gorday, Edgar Herbert Callaway, Jr., Frederick L. Martin, David B. Taubenheim