Patents Examined by Daniel Hunter
  • Patent number: 7444172
    Abstract: A device and method for automatically controlling power of a radio mobile terminal connected to a hands-free kit and for preventing the radio mobile terminal from malfunctioning. In a power control method for automatically turning on a radio mobile terminal connected to a hands-free kit, the radio mobile terminal including a power control signal generator, a signal output terminal and a signal input terminal, the hands-free kit including a power-on signal generator and a signal detector, a power-on signal is supplied to the signal input terminal for a predetermined time period through the power-on signal generator when the radio mobile terminal is connected to the hands-free kit. After the predetermined time period elapses, generating the power-on signal is stopped. It is determined if the driving signal generated by the signal output terminal is detected through the signal detector. If the driving signal is detected, generating the power-on signal is stopped.
    Type: Grant
    Filed: December 9, 1999
    Date of Patent: October 28, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dong-Jin Lee, Byung-Hun Hwang, Chul-Gyoo Park, Young-Seoung Joo
  • Patent number: 6873827
    Abstract: A method and apparatus for measuring a change in the insertion loss of a transmission line in a communication system is disclosed. The method provides feeder cable insertion loss detection in a transmission system without interfering with normal operation. The method includes injecting a non-interfering signal at a predetermined frequency onto a cable providing normal operating signals to a narrowband device at a predetermined frequency, measuring the amplitude of the injected signal, measuring the amplitude of a reflected signal, the injected signal being reflected by the narrowband device and processing the amplitude of the injected signal and the amplitude of the reflected signal to derive a current insertion loss for the cable.
    Type: Grant
    Filed: September 28, 1998
    Date of Patent: March 29, 2005
    Assignee: Nokia Corporation
    Inventor: Jonathan Wright
  • Patent number: 6738616
    Abstract: An automatic telephone service forwarding device including a base or enclosure defining a socket for receiving a wireless telephone. Upon detecting the presence of the wireless telephone in the socket, the device automatically forwards telephone service for the wireless telephone to a previously-stored forwarding directory number, typically the directory number of a wireline unit located nearby. Alternatively, the automatic telephone service forwarding device may be incorporated directly into a wireless telephone. In this case, the wireless telephone includes a “forward” button and a scrollable list of forwarding telephone numbers. The automatic telephone service forwarding device may also be configured to automatically select certain forwarding directory numbers from the list in accordance with a predefined time-based profile.
    Type: Grant
    Filed: March 15, 1999
    Date of Patent: May 18, 2004
    Assignee: BellSouth Intellectual Property Corporation
    Inventors: Charles M. Link, II, Donald M. Cardina
  • Patent number: 6665529
    Abstract: An apparatus for authenticating a subscriber at registration is provided for use in a mobile communications system having at least a switching center communicatible with at least one equipment registry and at least two subscriber registries, wherein, for each system subscriber, data associated with that subscriber is stored at a unique address in one of the subscriber registries.
    Type: Grant
    Filed: March 26, 1998
    Date of Patent: December 16, 2003
    Assignee: Ericsson Inc.
    Inventor: James L. Mills, Jr.
  • Patent number: 6654617
    Abstract: There is disclosed an improved base station for communicating with communication units in a wireless messaging system. According to an advantageous embodiment, the base station comprises: 1) a transmitter that is capable of transmitting messages to the communication units in a forward-channel having a first frequency range; 2) a receiver that is capable of receiving messages from the communication units in a reverse-channel having a second frequency range; and 3) an antenna that is capable of transmitting the forward-channel messages at a first angle of electrical downtilt below the horizon and receiving the reverse-channel messages at a second angle of electrical downtilt, wherein the second angle of electrical downtilt is less than the first angle of electrical downtilt.
    Type: Grant
    Filed: July 31, 2000
    Date of Patent: November 25, 2003
    Assignee: WebLink Wireless, Inc.
    Inventors: Allan D. Angus, Graham K. Jones, Selwyn Hill
  • Patent number: 6640101
    Abstract: Systems and methods provide remote performance monitoring and testing to a cell site in a cellular communications network. The systems and methods include a network management center having remote monitoring and testing capabilities utilizing an intelligent customer service unit that traps and makes available alarm information on the transport link.
    Type: Grant
    Filed: August 6, 1999
    Date of Patent: October 28, 2003
    Assignee: BellSouth Intellectual Property Corporation
    Inventor: J. Scott Daniel
  • Patent number: 6618588
    Abstract: Methods and systems for providing for calling party name and/or other information corresponding to a wireless unit to be stored in association with the mobile identity number (MIN) and/or mobile directory number (MDN) of the wireless unit in a location register such as the home location register (HLR) in a network element of a wireless network. The network element is configured to accept and support the TR-1188, wireless intelligent network (WIN), or the like messaging processes. When a calling party uses a wireless unit to make a call to a wireline unit of a subscriber having calling name delivery service, the call is routed in a conventional manner to the service switching point (SSP) serving the calling line of the wireline unit.
    Type: Grant
    Filed: August 23, 1999
    Date of Patent: September 9, 2003
    Assignee: BellSouth Intellectual Property Corporation
    Inventor: Larry Scott Easley
  • Patent number: 6615038
    Abstract: There is disclosed, for use in a wireless network comprising a group of base stations that communicate with a group of mobile stations, an apparatus for automatically gathering configuration data associated with the mobile stations. The apparatus comprises: 1) a database for storing a plurality of mobile station configuration records, wherein each of the mobile station configuration records stores configuration data gathered from a selected one of the mobile stations; and 2) an update controller for transmitting to a first mobile station a mobile station configuration request message and for receiving from the first mobile station first configuration data transmitted by the first mobile station in response to receipt of the mobile station configuration request message. The update controller stores the first configuration data in a first configuration record.
    Type: Grant
    Filed: April 28, 2000
    Date of Patent: September 2, 2003
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Bryan J. Moles, Sudhindra P. Herle
  • Patent number: 6597894
    Abstract: The communication terminal apparatus measures reception quality and reports the measurement result to the base station apparatus, and the base station apparatus switches the transmission rate based on the reported result of the reception quality. In this way, the transmission rate is switched starting at the point in time at which the reception quality of the communication terminal apparatus deteriorates. Furthermore, the transmission rate is switched so that the amount of interference with others is within the allowable range according to the channel condition between the communication terminal apparatus and base station apparatus.
    Type: Grant
    Filed: August 28, 2000
    Date of Patent: July 22, 2003
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Toyoki Ue, Katsuhiko Hiramatsu, Osamu Kato
  • Patent number: 6594507
    Abstract: The present invention relates to a mobile communication system comprising a rate adaptation unit (TC) which communicates with a base station system via first data transmission channels (Ater1-Ater4) and with a mobile services switching center (MSC) via second data transmission channels (A1-A4).
    Type: Grant
    Filed: June 27, 2000
    Date of Patent: July 15, 2003
    Assignee: Nokia Corporation
    Inventor: Leif Friman
  • Patent number: 6591099
    Abstract: Within a wireless telecommunications network, a method and system of transferring information from a Mobile Station (MS) 12 in the network 40 transparently to a Post Processing Subsystem (PPSS) 50 outside the network 40. The PPSS 50 requests information about the MS 12 by transmitting a request to the network 40 via an external node 42 coupling the PPSS 50 to the network 40. An element in the network 40 then receives the request from the PPSS 50 and identifies the type of external node 42 from which the request was received. Information is collected about the MS 12 that is responsive to the request. Finally, the information is transmitted in a network message format to the PPSS 50 through the identified external node from which the request was received.
    Type: Grant
    Filed: May 12, 2000
    Date of Patent: July 8, 2003
    Assignee: Ericsson Inc.
    Inventors: Inayat Syed, Yapping Zhu, Nauman Shakil, Martin Reichelt
  • Patent number: 6587681
    Abstract: When the telephone number of digital portable telephone A is notified to reception notifying apparatus 3 (S101), the telephone number is stored (S102), and is forwarded to digital portable telephone B (S103). Next, when digital portable telephone B transmits a CALL SETUP signal and a sending number to digital portable telephone A (S104, S105), digital portable telephone A transmits a CALL PROC signal and an ALERT signal to digital portable telephone B (S106-S109). After that, information indicating that the busy line display is ON is forwarded to reception notifying apparatus 3 (S110), and the telephone number is deleted (S111). Furthermore, reception notifying apparatus 3 transmits a voice guidance to digital portable telephone A (S114).
    Type: Grant
    Filed: February 17, 1998
    Date of Patent: July 1, 2003
    Assignee: NTT DoCoMo, Inc.
    Inventor: Koichi Sawai
  • Patent number: 6584302
    Abstract: The invention relates to a method and an arrangement for forming a beam for transmission in a TDD communication system, wherein an antenna comprises several elements. A multipath propagated signal is received and an antenna response is estimated. A subset of the responses is selected and beam forming coefficients are calculated by using the selected subset. The signal to be transmitted is multiplied by the beam forming coefficients. The inventive solution can be used in a call set-up.
    Type: Grant
    Filed: October 19, 1999
    Date of Patent: June 24, 2003
    Assignee: Nokia Corporation
    Inventors: Ari Hottinen, Risto Wichman
  • Patent number: 6580898
    Abstract: First and second supervised cards 103 and 104 are respectively provided with bus registers 114 and 115, CPUs 116 and 117 detect occurrence of a state change or failure of the respective apparatuses, the detected state change or failure information is stored in bus registers 114 and 115, and CPU 110 of currently used supervising card 101, alternately set to be used or reserved, reads the stored state change or failure information through supervisory control bus 105, and thereby supervises first and second supervised cards 103 and 104.
    Type: Grant
    Filed: May 4, 2000
    Date of Patent: June 17, 2003
    Inventor: Toshitaka Oguri
  • Patent number: 6580903
    Abstract: A circuit for recording and playing back voice in digital mobile radio devices and a method for appropriately recording and playing back the voice. The circuit includes a transmit-end voice encoder, a receive-end voice decoder, a memory for the recorded signals, a further voice encoder whose output is connected to the memory, and a further voice decoder whose input is connected to the memory.
    Type: Grant
    Filed: February 20, 2001
    Date of Patent: June 17, 2003
    Assignee: Infineon Technologies AG
    Inventors: Werner Hein, Johann Steger, Jürgen Paulus
  • Patent number: 6577864
    Abstract: An elliptical satellite system which carries out communication. The satellite orbits a height above the earth less than that necessary for geosynchronous orbits. When the satellite is near the apogee portion of its orbit, its velocity approximates the rotational velocity of the earth, and during that period it appears to hover over the earth. Each ground station on the earth always communicates a satellite within a predetermined position of its apogee, and hence that satellite appears to the ground station to hover over the earth. The satellite hence does not communicate with any earth station when it is outside of that apogee portion. During the times when the satellite is outside the apogee portion, its communication is therefore shut off to prevent any possibility of interfering with geosynchronous satellites. During this time, the power supply on the satellite is also used to charge a battery on the satellite.
    Type: Grant
    Filed: February 1, 2001
    Date of Patent: June 10, 2003
    Assignee: Virtual Geosatellite, LLC
    Inventors: David Castiel, John Draim, Kenneth F. Manning
  • Patent number: 6574459
    Abstract: A receiver provides received analog signals to a plurality of channel branches, and on at least one of the channel branches, the frequency of the received analog signals is adjusted independent of the relative positions of the corresponding analog signals in the radio frequency (RF) spectrum. The analog signals on the channel branches are then combined, and the combined analog signals are converted into the digital domain. For example, the receiver comprises at least one antenna(s) which receives radio frequency (RF) analog signals. A channel branch arranger receives the analog RF signals from the antenna(s) and provides the RF analog signals to a plurality of channel branches.
    Type: Grant
    Filed: April 14, 2000
    Date of Patent: June 3, 2003
    Assignee: Lucent Technologies Inc.
    Inventors: Walter Joseph Kaminski, Arild Kolsrud
  • Patent number: 6574485
    Abstract: The invention concerns a method of power regulation in a radio system including at least two transmitters, e.g. base transceiver stations, transmitting at the same frequency and receivers, e.g. mobile stations, which have set up a radio communication with the former. In the method according to the invention, the results of measurements of co-channel adjacent transmitter signals are used, besides the results of measurements of the radio communication to be relayed, in making the power regulation decision. From the results of measurements of adjacent transmitter signals to be transmitted with the monitored radio communication at the same frequency and in the same time slot, an estimate is determined of that interference caused to the radio communication, which is to be compensated for by a regulation of the transmission power of the desired signal.
    Type: Grant
    Filed: May 30, 2000
    Date of Patent: June 3, 2003
    Assignee: Nokia Corporation
    Inventors: Oscar Salonaho, Oscar Lappeteläinen
  • Patent number: 6568956
    Abstract: A portable electric apparatus, such as a radio telephone, has a main apparatus unit and a detachable power source unit, such as a battery pack. The apparatus also has first and second externally operable fastening members having respective first and second connecting elements for mechanically securing and electrically connecting the main apparatus unit to the power source unit. Both the first and second fastening members must be externally actuated, before the power source unit may be mechanically detached from the main apparatus unit.
    Type: Grant
    Filed: February 17, 2000
    Date of Patent: May 27, 2003
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventor: Per Holmberg
  • Patent number: 6571099
    Abstract: A method for quickly searching a cell at a mobile station by using a synchronization channel structure of a forward link in a code division multiple access system which operates by an asynchronous mode between base stations is provided. In the method, a predetermined starting point among a plurality of locations of sync channel codes in a frame with respect to a base station having a minimal channel loss is obtained. Long code group and frame sync information at the mobile station are obtained based on outputs of a matched filter every mini slot clock location for one frame time after a starting point of a current mini slot. A long code based on the obtained long code group and frame sync information obtained is detected wherein the long code is used for band-spreading of a forward link by a current base station.
    Type: Grant
    Filed: October 26, 1999
    Date of Patent: May 27, 2003
    Assignee: SK Telecom Co., Ltd.
    Inventors: Il Kyu Kim, Sang Wook Ha, Byoung Woo Lim, Sang Gil Lee