Patents Examined by Yemane Woldetatios
  • Patent number: 6173175
    Abstract: The provisioning process of the present invention first determines the average number of units of the system resource that are held per call. This parameter is a function of the call model and call-related event holding times. The average number of units is used, along with the Busy Hour Call Attempts to determine the holding rate, Rresource, of that particular call-related event to be allocated memory. The holding rate is then used by ┌Rresource +7{square root over (Rresource)}┐ to determine the number of resources required to be allocated to the call-related event.
    Type: Grant
    Filed: October 21, 1997
    Date of Patent: January 9, 2001
    Assignee: Nortel Networks Limited
    Inventors: Manar Alazma, Eddy H. Trink, Ping Yang, Kalyan Basu
  • Patent number: 6167286
    Abstract: A base transceiver station operating a sectorized cell of a cellular radio system operates a plurality of narrow uplink main receive beams, and one or a plurality of uplink diversity received beams. A scanning means scans each of the uplink main receive beams to locate a communications channel on the main uplink beams. A diversity receiver receives a diverse beam signal from the diverse beam(s), which is compared with a beam signal received from a main uplink beam, and the main beam signal from the main beam, or a diverse beam signal from the diversity antenna is selected, depending on the comparative signal to noise ratio and signal strength of the main beam signal and diversity beam signal.
    Type: Grant
    Filed: June 5, 1997
    Date of Patent: December 26, 2000
    Assignee: Nortel Networks Corporation
    Inventors: Christopher Robert Ward, Martin Stevens Smith, Andrew William Jeffries
  • Patent number: 6167288
    Abstract: A control circuit 7 investigates, based on inputs from an opening/closing condition detecting circuit 3 and a display button switch 1, a radio wave receiving condition when the display button switch 1 is operated while first and second main bodies 8 and 9 are closed, instructs, if although out of bounds is displayed when the display button switch 1 is operated, the display is then changed to within bounds, a sounder 6 to issue an informing sound in order to inform a user of the change in condition and also instructs a display lamp 2 for displaying. The sounder 6 informs the user of the change in condition from out of bounds to within bounds and the display lamp 2 displays within bounds.
    Type: Grant
    Filed: June 23, 1998
    Date of Patent: December 26, 2000
    Assignee: NEC Corporation
    Inventor: Junji Ishihara
  • Patent number: 6163680
    Abstract: A two way radio communication system (20) includes a plurality of radio units (22, 24, 26, 28, 30) communicating via at least one communication resource (34, 36). At least one first radio unit (22, 24, 26, 28, 30) of the plurality of radio units includes a receiver (48) for monitoring available resources of the at least one communication resource (34, 36) and a processor (46) for maintaining a prioritized list (45) of said available at least one communication resources and for selecting the highest priority available communication resource when the at least one radio unit (22, 24, 26, 28, 30) wishes to enter into communication with at least one second radio unit of the plurality of radio units. In this manner, an optimized communication resource is selected for the communication.
    Type: Grant
    Filed: June 17, 1998
    Date of Patent: December 19, 2000
    Assignee: Motorola, Inc.
    Inventors: Matthew Bridle, Antony John Wray, Rafael Carmon
  • Patent number: 6163691
    Abstract: A radio communication system is disclosed, wherein caller identification information is sent to called radios prior to the initiation of voice communications. The called radio's current checked-in cell sends call set up messages to the called radio and receives a response from the called radio. The cell then sends page information comprising the calling, or source, radio's identification. Voice communications are established immediately following the page data transmission. The called user is notified of the page information and can access the page message to determine which radio initiated the incoming call.
    Type: Grant
    Filed: June 24, 1998
    Date of Patent: December 19, 2000
    Assignee: Uniden America Corporation
    Inventors: Nathan Andrew Buettner, George Christian Alford
  • Patent number: 6163709
    Abstract: A transmitter for a cellular phone comprising an antenna and being operable at a first radio frequency band and a second radio frequency band is disclosed. In one embodiment, the transmitter includes a first power amplifier and a second power amplifier. The first power amplifier has a first input for a first signal at the first radio frequency band and a first output for an amplified first signal, the first output being connected to the antenna. The second power amplifier has a second input for a second signal at the second radio frequency band and a second output for an amplified second signal, the second output being connected to the antenna. The transmitter further comprises a single control module which is associated with the first and second outputs of the power amplifiers and comprises a logarithmic detector. The control module generates a control signal which is a function of an amplified signal and a reference signal in order to control the two power amplifiers.
    Type: Grant
    Filed: June 24, 1998
    Date of Patent: December 19, 2000
    Assignee: Conexant Systems, Inc.
    Inventors: Christopher M. Chorey, Iconomos A. Koullias, Luke T. Steigerwald
  • Patent number: 6151509
    Abstract: A transmitter for a cellular phone comprising an antenna and being operable at a first radio frequency band and a second radio frequency band is disclosed. The transmitter comprises a first power amplifier and a second power amplifier. The first power amplifier has a first input for a first signal at the first radio frequency band, a second input for a first control signal and a first output for an amplified first signal. The first output is connectable to the antenna. The second power amplifier has a third input for a second signal at the second radio frequency band, a fourth input for a second control signal and a second output for an amplified second signal. The second output is connectable to the antenna. The transmitter further comprises a single control module which receives a signal indicative of a current an active power amplifier draws. The control module uses this signal indicating the drawn current to generate a control signal to control the active power amplifier.
    Type: Grant
    Filed: June 24, 1998
    Date of Patent: November 21, 2000
    Assignee: Conexant Systems, Inc.
    Inventor: Christopher M. Chorey
  • Patent number: 6151501
    Abstract: A communication unit (118) provides service information related to a second communication service to a base site (114) that provides a first communication service to the communication unit (118). The base site (114) receives the service information, stores the service information, and receives a service request for the communication unit (118) to participate in the second communication service. Finally, the base site (114) transmits a control message to the communication unit (118), via a control communication resource, to alert the communication unit (118) as to requested participation in the second communication service.
    Type: Grant
    Filed: December 10, 1998
    Date of Patent: November 21, 2000
    Assignee: Motorola, Inc.
    Inventors: Anatoly S. Belkin, Ralph G. Riley, Robert L. Epsom, Kamala D. Urs
  • Patent number: 6148214
    Abstract: A device of the DECT type is disclosed which includes a base station connected to the telephone network transmitting an identification information signal which defines a calling user. This station is formed by a processor assembly, a memory containing an execution program and a random-access memory. The device also includes at least one handset formed by, inter alia, a display, a processor assembly notably intended to control said display. For transmitting the identification information, broadcasting means are provided for broadcasting to all the handsets by using message transmission means for transmitting messages of the service provided by said DECT standard.
    Type: Grant
    Filed: June 12, 1998
    Date of Patent: November 14, 2000
    Assignee: U.S. Philips Corporation
    Inventor: Sandrine Vitel
  • Patent number: 6148176
    Abstract: Methods and systems for acquiring service for a user terminal with a satellite communications system are provided wherein geographic information is received via an electromagnetic transmission at the user terminal defining a location of the user terminal. A control channel is selected corresponding to one of the spot beams covering the location of the user terminal using the geographic information. The user terminal acquires service from the satellite communications system over the control channel. The geographic information enables the user terminal to shorten the search time by searching those channels which correspond to the geographic region determined from the geographic information.
    Type: Grant
    Filed: March 11, 1998
    Date of Patent: November 14, 2000
    Assignee: Ericsson Inc.
    Inventors: Javor Kolev, Carsten Hoirup, Larry Massingill
  • Patent number: 6141559
    Abstract: A communication system (100) that includes base stations (103-109) comprising selection circuitry (207) is provided herein. The determination of a call anchoring base station (base station performing Code Division Multiple Access (CDMA) frame selection) is made based on the base station with a lowest mean work load. During communication with a remote unit (113), frames received by non-call anchoring base stations (105, 107) are backhauled to a switch (101). The switch (101) then sidehauls the frames to the call anchoring base station (103), where selection and call processing functions for the particular call takes place.
    Type: Grant
    Filed: February 3, 2000
    Date of Patent: October 31, 2000
    Assignee: Motorola, Inc.
    Inventors: Phillip D. Neumiller, Paul M. Popowski, Ron Rotstein
  • Patent number: 6141547
    Abstract: The invention relates to a radiotelecommunications system having a mobile terminal equipped with a subscriber identity module and designed to operate in a cellular network having a plurality of cells. The system has a private base station independent from the cellular network and connected to a wired telecommunications network.
    Type: Grant
    Filed: July 13, 1998
    Date of Patent: October 31, 2000
    Assignee: Alcatel
    Inventors: Emmanuel Rousseau, Frederic Vasnier
  • Patent number: 6138015
    Abstract: The multi-cell radio system is used in a communication system with at least one exchange (PBX) that has periphery assemblies (SLMC) and/or external radio exchange units (RE 1, RE 2) for the connection of base stations (B). Each mobile terminal equipment (ME) is allocated to exactly one port of a periphery assembly and/or radio exchange unit on the basis of an identification information specific to the terminal equipment. Radio connecting paths to or, respectively, from mobile terminal equipment (ME) can be produced such that, regardless of the location of the terminal equipment, they always ensue with an auxiliary ("extension") connection via the port of the periphery assembly and/or radio exchange unit allocated to it. The periphery assemblies (SLMC) and/or radio exchange units (RE) are configured to package the signaling messages from and to the terminal equipment in user-to-user information of a digital connection.
    Type: Grant
    Filed: August 30, 1996
    Date of Patent: October 24, 2000
    Assignee: Siemens Aktiengesellschaft
    Inventor: Ernst Langmantel
  • Patent number: 6128510
    Abstract: A cordless modem comprises a radio pair interfaced to a standard data/fax modem which allows a user of a personal computer to wirelessly connect to a telephone line. One end of the radio pair is a remote unit interfaced to the modem contained within the PC while the other end is a base unit connected to a standard telephone wall jack. The base unit can selectively discriminate and adjust for signals received from a telephone voice handset or data signals received from the cordless modem remote unit. Upon receiving an off-hook signal or an incoming call signal, the base unit identifies the type of data (i.e., voice or computer modem data) and adapts accordingly by placing an FM modulator in either of a narrow band deviation or a wide band deviation covering the required range of the particular signal combined with local echo. That is, when voice data is present, a low deviation, narrow filter combination is selected.
    Type: Grant
    Filed: May 13, 1997
    Date of Patent: October 3, 2000
    Assignee: International Business Machines Corporation
    Inventors: Troy James Beukema, Michael Frank Cina, Ephraim Bemis Flint, Brian Paul Gaucher, Young Hoon Kwark, Modest Michael Oprysko, William Edward Pence, Saila Ponnapalli
  • Patent number: 6128505
    Abstract: A DECT fixed part for providing a communications link between a DECT portable part and a GSM mobile switch center, the fixed part comprising a compression negotiation means for: receiving from one of the portable part and the mobile switch center a first message specifying a form of compression for a data service; and using that first message, determining a second message to be sent to the other of the portable part and the mobile switch center to request it to adopt a corresponding form of compression for the data service; so as to allow the provision of a compressed data service between the portable part and the mobile switch center.
    Type: Grant
    Filed: October 10, 1997
    Date of Patent: October 3, 2000
    Assignee: Nokia Mobile Phones Ltd.
    Inventor: Tuomo Sipila
  • Patent number: 6124800
    Abstract: A route delivery communication system for collecting and processing order and related data from product delivery units such as vending machines and the like, grocery and merchandise retailers, pharmacies, restaurants hospitals, clinics, warehouses, and factories, or the like, or for collecting and processing package collection data from package delivery boxes (such as mailboxes) is described. The system includes a plurality of notifiers each of which including a transceiver and a data gathering transducer for connection to an information collection point such as a vending machine or mailbox. The system also includes a plurality of prompters each including a transceiver for activating, queuing, and receiving data from the notifiers. The prompters further include a user display for communicating with a user and a user input for allowing a user to access and manipulate the prompter and data collected by the prompter from the notifiers.
    Type: Grant
    Filed: August 21, 1997
    Date of Patent: September 26, 2000
    Assignee: Intermec IP Corp.
    Inventors: Paul Beard, Alan G. Bunte
  • Patent number: 6122498
    Abstract: The invention relates to a method for cordlessly connecting a data terminal to a data transmission network using the DECT telecommunications system. In the method of the invention, the portable radio part (PP) and fixed radio part (FP) insert signalling information according to the V.24, for example, in frames complying with the DECT protocol to be radio transmitted via the air interface. When using signalling internal to the data channel it is advantageous to use an auxiliary protocol complying e.g. with the V.110 standard. Local signalling can also be used, in which case the data channel need not be used for signalling during data transmission. The method can also be used to transfer the automatic call setup commands according to the V.25bis standard. The method of the invention facilitates a short-range cordless data connection which is compatible with other DECT applications and which can use advantageous DECT system components.
    Type: Grant
    Filed: August 6, 1997
    Date of Patent: September 19, 2000
    Assignee: Nokia Mobile Phones, Ltd.
    Inventor: Tuomo Sipila
  • Patent number: 6118988
    Abstract: A transmission power control system and method is provided that controls the magnitude of transmission power in proportion to the distance between a base station and a mobile station. The transmission power control system provides the exact transmission power by compensating for an error between a real gain and a gain controlled value according to the magnitude of the transmission power. The transmission power control system can be used, for example, in a mobile phone. The transmission power control system can include a transmission part, a mobile station modem, a power detector, a gain difference controlling part and a power amplifier controlling part. The transmission part outputs a transmission power signal in accordance with input signals. The power detector transforms the transmission power signal into a DC voltage. The mobile station modem outputs a first and second gain control values, respectively, based on the DC voltage.
    Type: Grant
    Filed: July 31, 1998
    Date of Patent: September 12, 2000
    Assignee: Hyundai Electronics Industries Co., Ltd.
    Inventor: Jun-Hyuk Choi
  • Patent number: 6118999
    Abstract: In a satellite communication system, a user terminal (11) seeks response from a selected earth station (7A-E) for a request for service based analysing the signal quality of broadcasts from earth stations (7A-E). Whichever earth station (7A-E) responds calculates which earth station (7A-E) can best meet the request for service. If it is another earth station (7A-E), the user terminal (11) is intructed to redirect the request for service thereto and, once in contact, the user terminal (11) addresses all new requests directly thereto, until the best earth station (7A-E) calculates that there is a better earth station (7A-E), and instructs the user terminal (11) to address all future requests for service thereto.
    Type: Grant
    Filed: August 22, 1997
    Date of Patent: September 12, 2000
    Assignee: ICO Services Ltd.
    Inventors: Jose Luiz Albuquerque Moraes, Sze-Ching Lu
  • Patent number: 6119008
    Abstract: A radio access system comprises a base station and a plurality of subscriber locations. The subscriber locations each comprise a residential base unit or subscriber interface which includes line termination equipment. A group of subscribers is served by a pool of residential radio transceiver units in radio communication with the base station which is connected to the residential base units by a shared bus. A group of subscriber locations may be served by a lesser number of residential transceiver units, while at the same time providing individual locations with access to increased bandwidth for ISDN services and the like. Also described is a system in which a subscriber's base unit is connected to two or more residential transceiver units to allow increased bandwidth without requiring additional residential base units.
    Type: Grant
    Filed: October 30, 1997
    Date of Patent: September 12, 2000
    Assignee: Northern Telecom Limited
    Inventors: David P. Weeks, John D. McNicol, Jie Lin, Keith Russell Edwards, Richard Driscoll