Patents Examined by Tanmay Lele
  • Patent number: 6768769
    Abstract: A finger receiver has a data decision unit for deciding whether there is received data or not. If the data decision unit determines that there is received data, then a symbol data selector outputs, to a circuit at a later stage, accumulated and added symbol data at one of complex-inverse diffusing points in a plurality of phases, which is detected as having a maximum accumulated slot power value by a maximum value detector. If the data decision unit determines that there is no received data, then the symbol data selector outputs, to the circuit at the later stage, accumulated and added symbol data at the same point as the accumulated and added symbol data outputted in a preceding slot.
    Type: Grant
    Filed: October 30, 2002
    Date of Patent: July 27, 2004
    Assignee: NEC Corporation
    Inventor: Tomoaki Hokao
  • Patent number: 6745006
    Abstract: A communication system (20) utilizing a constellation (22) of satellites (24) is presented. A source ground station (52) transmits an uplink signal (34) containing source payload data (32) to a primary satellite (26) located in an orbit (70) about the Earth (56). The primary satellite (26) conveys the source payload data (32) to a secondary satellite (28) located proximate the primary satellite (26) in the orbit (70), where the source payload data (32) is baseband processed to produce destination payload data (42), which is then conveyed back to the primary satellite (26). The primary satellite (26) transmits a downlink signal (50) containing the destination payload data (42) to a destination ground station (54). The primary satellite (26) and secondary satellites are configured to expend majorities of their energy budgets in downlink transmissions and payload data processing, respectively.
    Type: Grant
    Filed: January 29, 2001
    Date of Patent: June 1, 2004
    Assignee: Motorola, Inc.
    Inventor: James T. Shaneyfelt
  • Patent number: 6731943
    Abstract: The Mobile Subscriber Station paging system makes use of a Standalone Home Location Register SHLR, where the mobile subscriber station records are removed from the present Mobile Switching Center and placed on a processor that manages only the subscriber's records and does not process call service requests. The ANSI-41 standard is then adapted to add a new parameter (CALLTIMEFEATURE) which includes the information required to apply Short MIN paging to a mobile subscriber station when certain conditions are met. These conditions are: the mobile subscriber station is capable of responding to a Short MIN page (the last 24 bits that represent the last 7 digits of the mobile subscriber station number), and the System ID that is immutably entered into the mobile subscriber station is the same as the System ID that is being broadcast by the cell on the overhead message train.
    Type: Grant
    Filed: April 10, 2000
    Date of Patent: May 4, 2004
    Assignee: Lucent Technologies Inc.
    Inventors: Mark Alan McCormick, Kenneth Wayne Shelhamer
  • Patent number: 6731929
    Abstract: Apparatus, and an associated method, for a radio communication system, such as a cellular communication system which provides also for packet data communications. Packet-formatted data, such as a web page or other display retrievable from a packet data network device is displayable at a mobile station concurrent with operation of the mobile station to effectuate another communication session, such as a voice call. The packet data is accessed and retrieved automatically upon initiation of a communication session, such as a voice call, initiated with a correspondent node.
    Type: Grant
    Filed: December 28, 2000
    Date of Patent: May 4, 2004
    Assignee: Nokia Corporation
    Inventor: Thomas Winkler
  • Patent number: 6731941
    Abstract: A method for locating a mobile station (MS) based on a power-related message of base transceiver stations (BTS) in a mobile communication system includes the steps of: by a call control processor (CCP) of a base station controller (BSC), checking an active set that the mobile station currently holds; by the call control processor, determining if the active set is covered over three base transceiver stations; if the active set is not covered over the three base transceiver stations, by frequency allocation of the active set, reading out status information of neighboring base transceiver stations; by the call control processor, determining if the frequency allocation of the active set is usable; if the frequency allocation is usable, transmitting to the mobile station a PSMRO (pilot strength message request order) that is a message for requesting to measure pilot strength of the frequency allocation; arranging a plurality of base transceiver stations in order of pilot strength based on the pilot strength measur
    Type: Grant
    Filed: March 29, 2001
    Date of Patent: May 4, 2004
    Assignee: Huyndai Electronics Industries Co., Inc.
    Inventor: Sang-Seong Kim
  • Patent number: 6728533
    Abstract: In a mobile phone having a clock display therein, wherein the mobile phone is in wireless communication with a base station located in a time zone having a current local time (CLT), and wherein the base station transmits a control signal having carried therein at least a universal coordinated time (UCT) signal, a system identification (SID) signal, a network identification (NID) signals, a CLT signal, and a daylight savings time (DST) flag, wherein the mobile phone is transportable to be wireless communications with another base station in another time zone, and wherein, upon securing communications with a base station, the phone synchronizes its internal clock to the CLT of the base station; a clock includes a selection mechanism for use by a user to select a home time zone (HTZ), and to select a displayed time on the clock display from the group of displayed times consisting of CLT and HTZ; and a displayed time calculating mechanism which determines the time displayed on the clock display as a function of t
    Type: Grant
    Filed: January 25, 2001
    Date of Patent: April 27, 2004
    Assignee: Sharp Laboratories of America, Inc.
    Inventor: Atsushi Ishii
  • Patent number: 6721303
    Abstract: A method and system for configuring a radio interface between a mobile station and a base station in a time-division multiplex mobile radio system for packet data transmission, wherein time slots for signalling in the uplink direction are allocated by a base station to the mobile stations in accordance with a sequence which can be predetermined independently of packet data transmission. The fixed allocation of a time slot for signalling, in addition to mobile stations to which no physical channel is currently allocated, allows the base station to carry out continuous measurement relating to the radio interface. Thus, when packet data transmission resumes, immediately valid measurements are available for configuration of the radio interface.
    Type: Grant
    Filed: May 5, 1999
    Date of Patent: April 13, 2004
    Assignee: Siemens Aktiengesellschaft
    Inventors: Christian Menzel, Martin Öttl
  • Patent number: 6711406
    Abstract: Apparatus, and an associated method, facilitates changeover of mode of operation of a mobile station operable in a cellular communication system. Changeover of the mode of operation of the mobile station is required when the mobile station is operated in the packet mode and a circuit-switched call is to be terminated at the mobile station. A page is transmitted to the mobile station which includes an allocation of time during which a response to a page forming a request to suspend the packet mode of operation is to be generated.
    Type: Grant
    Filed: May 3, 2000
    Date of Patent: March 23, 2004
    Assignee: Nokia Corporation
    Inventors: Raino Lintulampi, Kari Jyrkkä, Heikki Päivike, Shavantha Kularatna, Pekka Mottonen
  • Patent number: 6708028
    Abstract: A radio telephone capable of being operated in more than one radio telephone system, comprising communication means respectively associated with each of the more than one radio telephone system, monitoring means for monitoring signals of the more than one radio telephone system, and selection means responsive to said monitoring means for automatically selecting and re-selecting respective said communication means in accordance with the signals of one of the more than one radio telephone system fulfilling at least one predetermined criterion. The predetermined criterion can be based on a number of features such as received signal strength, access rights, system requests, least BER or frame error rate and user velocity.
    Type: Grant
    Filed: November 15, 1996
    Date of Patent: March 16, 2004
    Assignee: Nokia Mobile Phones, Ltd.
    Inventor: John Daniel Byrne
  • Patent number: 6704578
    Abstract: A telecommunication system for mobiles of the type which has a network of base stations to which the mobiles can be connected and which is designed so that a mobile connected to a base station sends to the base station, besides user signals, power control commands in order that the base station controls its own transmission power so that the power received therefrom by the mobile is equal to a predetermined value. Each base station to which the mobile is connected regularly transmits, to the base stations to which the mobile is liable to be connected during a handover phase, the mean value of its transmission power. A base station, at the moment of the start of the handover phase, deduces, from the mean value and from the power control commands it receives from the mobile, the instantaneous value of the power emitted by the initial base station or stations at this moment and initializes its transmission power to a value derived from the instantaneous power.
    Type: Grant
    Filed: November 29, 2000
    Date of Patent: March 9, 2004
    Assignee: Mitsubishi Electric Information Technology Centre Europe B.V.
    Inventor: Nicolas Voyer
  • Patent number: 6690953
    Abstract: A method and a system are disclosed for achieving calibration with a minimum of hardware implementations. The method and system apply to base stations that have a “full adaptive antenna” implementation. The calibration accounts for irregularities from the source generator through channelizers, up-converters, mixers, power-amplifiers, and filters. A proposed illustrative embodiment of the set-up and routine accomplishes both transmit path and receive path calibration. An arrangement according to the invention uses the internal base station radio parts by sequentially switching signal paths from transmitter to receiver and thereby not needing external equipment. The necessary hardware switching then is combined with the duplex filters preferably positioned close to the base station.
    Type: Grant
    Filed: January 31, 2001
    Date of Patent: February 10, 2004
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Leonard Rexberg, Magnus Johansson, Eberhard Pauck, Karsten Kruger
  • Patent number: 6687509
    Abstract: A method and apparatus for dynamically controlling signal power levels in a bi-directional backhaul communication link between a base station and a repeater station is provided. The signal power level of a signal transmitted between a base station and a repeater station is measured at the receiver of the signal. Once the received signal power level has been measured, the power level data based on the received signal power level is automatically transmitted from the receiving station back to the source of the measured signal over the backhaul link. Upon receipt at the source, the power level data is extracted and analyzed to determine if the source needs to alter its transmitted power. Once the power level data is analyzed to determine if a change in the transmitted power is required, the source can automatically respond by increasing, decreasing, or maintaining the transmitted power.
    Type: Grant
    Filed: November 30, 2000
    Date of Patent: February 3, 2004
    Assignee: Airnet Communications Corporation
    Inventors: Thomas R. Schmutz, Michael A. Komara
  • Patent number: 6687503
    Abstract: A method and system for providing wireless backhaul channels for use in a cellular radio network is disclosed wherein any of the subscriber terminals can be used as a backhaul terminal thus dispensing with the need for a dedicated backhaul terminal. In the preferred embodiment, the backhaul channel is integrated with the data channels provided for network payload communications, with the backhaul data being allocated the highest data priority and a traffic scheduler allocating the backhaul data time slots for transmission accordingly. This has the advantage that the bandwidth required for backhaul can be dynamically assigned to cope with the network loading at any time.
    Type: Grant
    Filed: May 19, 2000
    Date of Patent: February 3, 2004
    Assignee: Axxcelera Broadband Wireless, Inc.
    Inventors: John David Porter, Walter Charles Vester
  • Patent number: 6684087
    Abstract: According to the principles disclosed herein, an image requested by a mobile device is first processed in a server device. In accordance with a set of parameters about the screen of the mobile device, the requested image is transformed to a reduced version that fits well into the screen. In addition, the reduced version is inherently divided into a number of subareas, each embedded a link to a detailed version thereof and associated with one of the keys in the mobile device. When the reduced version is, displayed on the mobile device, a user decides to view an area that falls into one of the subareas, a corresponding key is activated. A new request including the link is send to the server device that consequently sends out the detailed version. Similary, the detailed version is inherently divided into the same number of subareas. As a result, all parts in the original image can be recursively viewed.
    Type: Grant
    Filed: May 7, 1999
    Date of Patent: January 27, 2004
    Assignee: Openwave Systems Inc.
    Inventors: Francis H. Yu, Neil J. Cormia
  • Patent number: 6684082
    Abstract: A method is disclosed for operating a mobile station. The method has a first step of storing data into a memory within the mobile station, the stored data including at least one system operator code (SOC) having an assigned priority value. Upon the mobile station receiving a system identification (SID) associated with the stored SOC, the method stores the SID into the memory so as to have the same priority value that is assigned to the SOC. When the mobile station subsequently receives a transmission containing the SID and not the SOC, the mobile station accesses the memory to determine the priority value associated with the SID, and then controls the operation of the mobile station based on the determined priority value. The step of controlling the operation of the mobile station preferably controls at least one of a scanning behavior or a camping behavior of the mobile station.
    Type: Grant
    Filed: March 30, 2000
    Date of Patent: January 27, 2004
    Assignee: Nokia Corporation
    Inventor: Kenneth McClure
  • Patent number: 6668157
    Abstract: Data sharing equipment for mobile stations is described, which is capable of suppressing a load upon a communication line for data communication between a monitor station and the mobile stations and reducing a standby time required for the data communication of the mobile stations. It is assumed that excavators and trucks have received all course data C1 to C3 and courses ID1 to ID3, and truck 11 has received only the course data C1, C2 and the course ID1, ID2. When an excavator moves from present course 2 to a location to adopt course 3, and when a truck arrives at a loading spot and the excavator and the truck can communicate by spread-spectrum radio communications, the excavator transmits the course ID3 as the instruction content to the truck by the spread-spectrum radio communication.
    Type: Grant
    Filed: May 30, 2000
    Date of Patent: December 23, 2003
    Assignee: Komatsu Ltd.
    Inventors: Koji Takeda, Tomonori Ozaki, Masato Kageyama
  • Patent number: 6665541
    Abstract: Methods and apparatuses for synchronizing basestations in a cellular network. One exemplary method performs time synchronization between at least two basestations, a first basestation and a second basestation, of a cellular communication system. In this exemplary method, a first time-of-day and a first geographical location of a first mobile cellular receiver station (MS) are determined from a first satellite positioning system (SPS) receiver which is co-located with the first MS, and the first time-of-day and first location are transmitted by the first MS to a first basestation which determines a time-of-day of the first basestation from the first time-of-day and first location and from a known location of the first basestation.
    Type: Grant
    Filed: May 4, 2000
    Date of Patent: December 16, 2003
    Assignee: Snaptrack, Incorporated
    Inventors: Norman F. Krasner, Edward V. Jolley
  • Patent number: 6662015
    Abstract: A network adapter extracts presence, location and availability information relating to a communication device deployed in a communication network. The network adapter is configured to interface between the network and an application for providing information specified by the application. Preferably, the network adapter interfaces with the network at a single location to extract the desired information. In such an embodiment, the network adapter may reside in a link between network elements, such as a home location register (“HLR”) and a short message service center (“SMS-C”). The network adapter may include a database of subscriber information codes used by the network to identify communication devices in use within the network.
    Type: Grant
    Filed: May 13, 2002
    Date of Patent: December 9, 2003
    Assignee: Evolving Systems, Inc.
    Inventor: Patrick Shane Furlong
  • Patent number: 6640084
    Abstract: The complete outdoor radio unit for LMDS is a light weight, compact transceiver featuring planar circuitry. The transceiver uses cross polarization through an orthomodal transducer and frequency offset between transmit and receive to provide isolation between the transmitter and receiver. The transceiver includes three printed circuit boards directly attached by thermally conductive epoxy to a heat sink which forms part of the antenna dish/transceiver housing for effective heat transfer. Two of the waveguides are used as receiver and transmitter transmission lines into the orthomodal transducer, and two of the waveguides are used as bandpass filters. The transceiver also includes a DC—DC converter in the power supply which is modified to connect the base plate to the heat sink for compactness and improved heat transfer, and a frequency synthesizer with a phase locked loop hardwired to a single reference frequency for compact size.
    Type: Grant
    Filed: November 29, 2000
    Date of Patent: October 28, 2003
    Inventors: Krishna Pande, Guobao Zheng, Tho Nguyen, Lee Phelps, Ali I. Bawangaonwala, Sunil M. Nagabhushana, Eric Funk
  • Patent number: 6636728
    Abstract: A portable receiver comprised of several antennas that are connected to a receiver unit for receiving a signal transmitted by an electromagnetic induction process. The antennas are made in the form of coils, that are carried by a support in such a way that the respective turns of the coils are oriented along different respective axes of an axis system associated with the support. The invention further includes a phase shifting means oriented between the antennas and the receiver unit. The phase shifting means is designed to produce a temporal phase shift corresponding to an angle of (n−1)&pgr;/n, at the frequency of the signal received between induced signals delivered by the antennas (n being the number of antennas).
    Type: Grant
    Filed: April 6, 2000
    Date of Patent: October 21, 2003
    Assignee: Valeo Securite Habitacle
    Inventor: Jean-Jacques Avenel