Patents Examined by Isaak R. Jama
  • Patent number: 6212385
    Abstract: A cellular communication system has a frequency bandwidth arranged into a plurality of frequency channels, and a plurality of neighbouring first (130) and second (132) sites each having sectors (a1-f1, a2-f2) containing at least one frequency channel. Corresponding sectors in each of the neighbouring first (130) and second sites (132) have consecutive frequency channels from the frequency bandwidth, thereby producing a two-site re-use pattern (134, 136). The cellular communication system may be adapted to support an underlay/overlay cell configuration in which neighbouring first (230) and second (232) sites each have six-sectors containing at least one frequency channel (b1-b12) of a two-site repeat pattern. The six sectors further each contain at least one frequency channel (t1-t6) of a one-site repeat pattern.
    Type: Grant
    Filed: March 29, 1999
    Date of Patent: April 3, 2001
    Assignee: Motorola, Inc.
    Inventors: Howard Thomas, Jun Xiang, Simon Saunders
  • Patent number: 6188876
    Abstract: The present invention relates to a system and a method for monitoring and controlling RF signal processing units in a wireless communication network, and, more particularly, system and method for remotely monitoring and controlling the functional status of RF signal processing units of numerous base stations in a wireless communication network by extracting the spectrum feature of high frequency that is processed by the RF signal processing unit and represents the functional status of the RF unit in each base station, and then comparing the extracted spectrum with the predetermined spectrum curve in the remote site.
    Type: Grant
    Filed: January 28, 1998
    Date of Patent: February 13, 2001
    Assignee: Fine Digital, Inc.
    Inventor: Yong-Hun Kim
  • Patent number: 6154651
    Abstract: A method and system used in a wireless network that provides communication service on both analog control channels (ACCs) and digital control channels (DCCHs) controls access to wireless services by a mobile station. The method comprises the steps of acquiring wireless services on a select ACC; periodically receiving a pointer to a preferred DCCH as part of a message received from the wireless network via the ACC; initially attempting to acquire wireless service on the preferred DCCH, including determining if received signal strength is acceptable and available service features are acceptable, and if not, then indicating the preferred DCCH as rejected; storing information on the rejected DCCH; and subsequently attempting to acquire wireless service on the rejected DCCH only if the DCCH was rejected due to received signal strength not being acceptable.
    Type: Grant
    Filed: July 28, 1998
    Date of Patent: November 28, 2000
    Assignee: Ericsson Inc.
    Inventors: Scott G. Hicks, Nadi S. Findikli
  • Patent number: 6151497
    Abstract: A satellite based broadcast data communications service for a satellite communications system is presented which allows a data information service provider (40) to send large blocks of data information to mobile subscriber units (50). A satellite gateway (30) is coupled to a service provider (40) via a ground link (42) and to a satellite communications network (10) via a gateway link (36). A mobile subscriber unit (50) is coupled to the satellite communications network (10) via both a message link (56) and a high-speed high-bandwidth downlink (58). The mobile subscriber unit sends a data request for requested data information to service provider (40) via message link (56), satellite communications network (10), gateway link (36), gateway (30), and ground link (42).
    Type: Grant
    Filed: February 12, 1998
    Date of Patent: November 21, 2000
    Assignee: Motorola, Inc.
    Inventors: David Moon Yee, Robert Henry Bickley, Philip John Zucarelli, Theodore W. Keller, Jeff S. Osman, Randall K. Derr
  • Patent number: 6138023
    Abstract: A method of porting a wireless terminal's directory number from one wireless service provider to another is disclosed. One illustrative embodiment involves creating a temporary pointer in the recipient wireless service provider's Home Location Register that, during the inchoate porting process, directs a call for the directory number to the donor wireless service provider for completion in well-known fashion. When the porting process is complete, the temporary pointer is deactivated and call processing is completed by the recipient wireless service provider in well-known fashion.
    Type: Grant
    Filed: September 23, 1997
    Date of Patent: October 24, 2000
    Assignee: Lucent Technologies, Inc.
    Inventors: Anjana Agarwal, Douglas Harold Rollender, Virarghavan Sudarsan
  • Patent number: 6138013
    Abstract: A method for providing location based intercept in a satellite communications system (10) includes the steps of determining a location area of a party (220), determining whether the location area is one to be monitored (240), and conditionally routing the call to an intercept gateway (250). An intercept gateway (32) is a gateway that intercepts all or part of the calls received, and can also function as a home gateway (30) or a visiting gateway (40).
    Type: Grant
    Filed: February 12, 1998
    Date of Patent: October 24, 2000
    Assignee: Motorola, Inc.
    Inventors: Scott David Blanchard, Dean Paul Vanden Heuvel, Pramodkumar Patel
  • Patent number: 6137997
    Abstract: A circuit (30) and method for translating a spectrum of a modulated signal. The circuit (30) includes a mixer (33), a summing device (36), and a synthesizer (37). The circuit (30) receives and transmits modulated Radio Frequency (RF) signals. The synthesizer (37) generates a transmitter modulated RF signal (TX.sub.RF) using a modulating signal (TX.sub.MOD). The mixer (33) generates an intermediate frequency signal (IF) by mixing a receiver modulated RF signal (RX.sub.RF) with the transmitter modulated RF signal (TX.sub.RF). The summing device (36) removes modulation of the transmitter modulated RF signal (TX.sub.RF) by combining the intermediate frequency signal (IF) with the modulating signal (TX.sub.MOD).
    Type: Grant
    Filed: August 4, 1998
    Date of Patent: October 24, 2000
    Assignee: Motorola, Inc.
    Inventors: K. Juergen Schoepf, David Kevin Lovelace, Klaas Wortel, Jeffrey C. Durec
  • Patent number: 6134457
    Abstract: A battery monitoring device for a mobile communication terminal having a display. A current sink consumes a traffic mode current in response to a control signal output from a microprocessor. An analog-to-digital converter converts a voltage signal output from the current sink to a digital signal. The microprocessor compares the output signal of the analog-to-digital converter with threshold values stored in an internal memory to determine the remaining capacity of the battery. The remaining capacity of the battery is then displayed on the display.
    Type: Grant
    Filed: July 16, 1998
    Date of Patent: October 17, 2000
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang-Wook Ha, Joung-Kyou Park
  • Patent number: 6128478
    Abstract: A communication device employs a method and apparatus for amplifying a radio frequency (RF) signal that eliminates the need for a signal splitter. An RF input signal (202) is coupled to a first RF amplifier stage (206) only. A signal coupler (222) couples an output of the first amplifier stage (206) to an input of a second amplifier stage (208). The input signal (242) for the second RF amplifier stage is an attenuated version of the output signal (240) from the first RF amplifier stage. The outputs of the first and second RF amplifier stages (206, 208) are combined by a signal combiner (234) to produce a combined output signal (246) for transmission.
    Type: Grant
    Filed: July 31, 1998
    Date of Patent: October 3, 2000
    Assignee: Motorola, Inc.
    Inventor: Kevin Kim
  • Patent number: 6128506
    Abstract: A method of stabilizing a communication system having base stations and mobile stations using integrated control of both signal transmission power levels and signal congestion levels. In particular, the method includes measuring a quality such as a signal to interference ratio of a signal transmitted from a mobile station to a base station and measuring a total received signal power at the base station. The signal transmission power of the mobile station is changed based on comparisons of the measured signals with predetermined threshold values. When the measured total received signal power at the base station exceeds the corresponding predetermined threshold value, a congestion control algorithm is executed to reduce the signal congestion level.
    Type: Grant
    Filed: September 24, 1997
    Date of Patent: October 3, 2000
    Assignee: Telefonaktiebolaget LM Ericsson
    Inventors: Jens Knutsson, Magnus Persson
  • Patent number: 6125265
    Abstract: Voice decoding means 9 includes: voice decoding operation means 10 for performing a decoding operation on encoded voice data of a voice frame from the channel decoding means 6, thereby outputting an analog voice signal and voice power information of the voice frame; voice power operation means 14 for accumulating and averaging the voice power information, and outputting comparative power information; comparing means 16 for comparing voice power information of a received voice frame with the comparative power information, and for, when the difference is not smaller than a threshold, outputting a voice output control signal; and voice output control means 12 for controlling a volume of a voice frame having voice power information in which an abnormality is detected based on the voice output control signal. The voice decoding means 9 detects an erroneous voice frame on the basis of a difference between voice power information.
    Type: Grant
    Filed: April 30, 1998
    Date of Patent: September 26, 2000
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Naoyuki Yamamoto, Hideshi Tsugane
  • Patent number: 6122517
    Abstract: A method and a system assign a speech channel difficult to cause interference in a radio mobile station and in both in the radio mobile station and a radio base station. A channel number is set, a usability judgment threshold value is read out to be compared with a reception field intensity of a selected speech channel. If the reception field intensity is relatively high, a preference of the speech channel is lowered. If the reception field intensity is relatively low, the channel is notified to the radio mobile station. If interference is present in the radio mobile station, the preference is again lowered and otherwise, process of establishing call connection is initiated.
    Type: Grant
    Filed: June 25, 1998
    Date of Patent: September 19, 2000
    Assignee: NEC Corporation
    Inventor: Tomoyasu Imamura
  • Patent number: 6122507
    Abstract: Following a call set-up request emitted by a terminal of a given user of a telecommunications system using a constellation of non-geostationary satellites, the terminal reserves a channel in the cell in which it is located and in neighboring cells not including all the cells it will have to cross during a predetermined time period. For each cell where a channel has not been reserved, the given user's terminal waits until it is at a predetermined distance from its point of handover into the cell, equal to the greatest distance a user can travel in the cell, before transmitting a reservation request. The call set-up request is accepted only if a condition relating to the number of other users near the given user at the time of the call set-up request is satisfied.
    Type: Grant
    Filed: February 23, 1998
    Date of Patent: September 19, 2000
    Assignee: France Telecom
    Inventors: Maral Gerard, Restrepo Joaquim
  • Patent number: 6108568
    Abstract: A cordless telephone is disclosed having a handset and a receptacle. The receptacle has a shape which adapts itself to the shapes of the front and back faces of the handset. The receptacle shape matches and completely contacts the shape of the handset back face. A fixing stop of the charger supports two receptacle charge contacts of the handset.
    Type: Grant
    Filed: December 3, 1997
    Date of Patent: August 22, 2000
    Assignee: U.S. Philips Corporation
    Inventors: Jean-Pierre Lebrun, Marcel Pinel
  • Patent number: 6104927
    Abstract: A method and system are disclosed where both a mobile station (105) and the infrastructure logically treat all access probes of an access attempt as if they were transmitted to a first base station (101). This is accomplished by having the mobile station (105) store both the registration parameters received from the first base station (101) to which an access probe is transmitted and a characteristic, such as the PN offset, of the first base station (101). When the mobile station (105) determines that it should perform an access probe handoff, it transmits an access probe to a different base station, identifying in the probe the characteristic, such as the PN offset, of the first base station (101). This allows the infrastructure to identify the base station that the mobile station (105) intends to register with. When the mobile station (105) receives acknowledgment to the access attempt, it then updates its registration variables with respect to the parameters received from the first base station (101).
    Type: Grant
    Filed: May 28, 1998
    Date of Patent: August 15, 2000
    Assignee: Motorola, Inc.
    Inventor: William Daniel Willey
  • Patent number: 6081729
    Abstract: An encapsulated tubular conductor having at least two antenna elements disposed on the capsule thereof for maintaining therebetween wireless information transmission in a transmitting-receiving direction, and a transmitting-receiving device located outside the capsule and assigned to one of the antenna elements includes another transmitting/receiving device also disposed outside the capsule and assigned to the other of the antenna elements, the antenna elements being directed towards an interior space of the capsule, the interior space serving as a transfer path via which information is transferable between the transmitting-receiving devices.
    Type: Grant
    Filed: July 31, 1998
    Date of Patent: June 27, 2000
    Assignee: Siemens Aktiengesellschaft
    Inventors: Peter Bauerschmidt, Ottmar Beierl, Gerd Scholl, Oliver Sczesny, Wolf-Eckhart Bulst, Valentin Magori, Thomas Ostertag, Leonhard Reindl, Dieter Lorenz
  • Patent number: 6078825
    Abstract: A wireless headset system for use with, e.g. mobile phones, and which incorporates a wireless headset which communicates with a base station via magnetic inductive coupling or radio frequency signals to dial and send or receive calls via a conventional phone, e.g. a mobile phone, attached to the base station. In one embodiment, the mobile phone is carried in the base station which is worn by the user.
    Type: Grant
    Filed: February 20, 1998
    Date of Patent: June 20, 2000
    Assignee: Advanced Mobile Solutions, Inc.
    Inventors: Stan S. Hahn, Genrik Yegiazaryan, Sung Kee Baek, David S. Hishinuma, Robert Jetter
  • Patent number: 6078803
    Abstract: The invention discloses a wrist-device which comprises a first module (1) such as a personal computer and a second module (2) consisting of a mobile telephone or a wireless telephone terminal which are coupled by means of elements (15) in a bracelet configuration for holding the device to the forearm of the user, and wherein windows (12) are provided in said modules for the passage of electronic connection buses (13) between said modules (1 and 2).
    Type: Grant
    Filed: December 12, 1996
    Date of Patent: June 20, 2000
    Inventor: Jose Ignacio Fernandez Martinez
  • Patent number: 6078786
    Abstract: The invention relates to a method and a device for distance measuring between two stations (A1, B1) connected by a communication channel. The method is based on a command structure, wherein the satellite (A1, B1), by means of which a distance is to be determined, sends a range request (3) via an inter-satellite communication channel to the other satellite (A1or B1), which thereupon acknowledges this range request (3) with an answer (4). The distance is determined from the corresponding measurement of the cycle time. The range request (3) and the corresponding answer (4) are transmitted in a multiplexed communication channel.
    Type: Grant
    Filed: September 16, 1997
    Date of Patent: June 20, 2000
    Assignee: Contraves Space AG
    Inventors: Bernhard Wandernoth, Christoph Peter Serbe
  • Patent number: 6060999
    Abstract: A pager including a receiving circuit for receiving a transmitted paging signal including a message and address data; a message receiving circuit, having a memory for storing a plurality of sets of assigned address data and messages, for receiving and storing the message from the receiving circuit in the memory when the address data in the paging signal agrees with any of the plurality of sets of assigned address data. The pager further includes a counter for counting the number of times of receiving a message when the address data agrees with specified assigned address data; a comparing circuit responsive to the counting means for comparing the number of times with a reference number; and an alarming circuit for effecting an alarming operation on the basis of the result of the comparing circuit. The alarm to the user is generated when a predetermined number of low priority messages have been received.
    Type: Grant
    Filed: January 7, 1998
    Date of Patent: May 9, 2000
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yasushi Abe, Kazunori Watanabe