Patents Examined by Thuan Nguyen
  • Patent number: 7206554
    Abstract: A method and apparatus are provided that allows beamforming to be used on a user-specific signal together with a sector-wide pilot signal in a communication system, such as a CDMA system. In one embodiment, the invention includes transmitting a pilot signal with a wide beamwidth to a remote terminal from a first array, transmitting a first traffic signal with a narrow beamwidth directed to the remote terminal from the first array, and transmitting a second diversity traffic signal with a second narrow beamwidth directed to the remote terminal from a second array. In some examples, the invention may also include transmitting a second pilot signal from the second antenna array.
    Type: Grant
    Filed: June 28, 2002
    Date of Patent: April 17, 2007
    Assignee: ArrayComm LLC
    Inventor: Erik D. Lindskog
  • Patent number: 7127272
    Abstract: A design system designs a first antenna system in a communication system. The design system retrieves demographic information of customers from a first database system. The design system determines communication traffic based on the demographic information. The design system retrieves parameters of a second antenna system from a second database system. The design system determines an antenna system configuration for the first antenna system based on the communication traffic and the parameters of the second antenna system. The design system then determines a performance of the first antenna system in response to determining the antenna system configuration for the first antenna system.
    Type: Grant
    Filed: February 27, 2002
    Date of Patent: October 24, 2006
    Assignee: Sprint Communications Company, L.P.
    Inventors: Lawrence J Almaleh, Douglas L Machamer, Nichole D Rowland, Todd A Rowley
  • Patent number: 7107029
    Abstract: A radio frequency receiver for receiving supplementary data transmitted with a radio station signal, said supplementary data comprising one or more information word fields containing supplementary data transmitted with the radio station signal, said receiver comprising: a host processor for processing said supplementary data; a supplementary data demodulator and decoder for demodulating and decoding a received radio signal to generate a stream of bits representing one or more information word fields; a information word type memory for storing one or more information word type fields; detection circuitry arranged to receive and compare the information word type field decoded by the supplementary data decoder with one or more information word type fields stored in the information word type memory, and to provide a matched condition signal in response to a match between one or more decoded information word type fields and one or more of said corresponding stored information word types fields, and wherein the
    Type: Grant
    Filed: October 22, 2003
    Date of Patent: September 12, 2006
    Assignee: Nokia Corporation
    Inventor: Ken Mason
  • Patent number: 7088984
    Abstract: An electronic tuner of the present invention is arranged such that between an input part of the amplifying circuit and the ground serially connected are a coil and a diode, and a capacitor is connected between the ground and a connecting part between the coil and the diode. The diode is brought into conduction when a voltage supplied from a VHF High control source is at High level, and the coil and input capacitance of the amplifying circuit makes up a gain correction circuit for improving a frequency characteristic of a received signal in a VHF High band. The diode is brought out of conduction when a voltage supplied from a VHF High control source is at Low level, and the coil and the capacitor makes up a trap circuit for improving a frequency characteristic of a received signal in a VHF Low band. This makes it possible to minimize price increase of the apparatus and to improve frequency characteristics in the VHF High band and VHF Low band.
    Type: Grant
    Filed: June 10, 2003
    Date of Patent: August 8, 2006
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Koji Oiwa
  • Patent number: 7079857
    Abstract: A method and apparatus for arbitrating between a first communication device having floor control in a group communication network and a second communication device competing for floor control provides receiving a floor-control request from the second communication device, comparing respective priority levels of the first communication device and the second communication device, and granting floor control to the second communication device if the second communication device has a higher or equal priority level. In one embodiment, the controller receives the request for floor control from a push-to-talk (PTT) device.
    Type: Grant
    Filed: October 17, 2001
    Date of Patent: July 18, 2006
    Assignee: Qualcomm Inc.
    Inventors: Mark Maggenti, Douglas M. Crockett, Eric Rosen
  • Patent number: 7069031
    Abstract: A method and apparatus for providing security in a group communication network provides for receiving an encryption key, encrypting media for transmission to a controller using the received encryption key, the encrypted media being directed to another communication device, and communicating the encrypted media to the controller. In one embodiment, the communicating includes wireless communication. The method and apparatus further provides for receiving encrypted media from a controller and blocking the encrypted media if the communication device is not enabled to receive encrypted-media transmission, or if the media is not encrypted based on an encryption key previously specified by the communication device. In another aspect, the communication device is a push-to-talk (PTT) device.
    Type: Grant
    Filed: November 8, 2001
    Date of Patent: June 27, 2006
    Assignee: Qualcomm Inc.
    Inventors: Mark Maggenti, Douglas M. Crockett, Eric Rosen
  • Patent number: 7058359
    Abstract: A local multipoint distribution service system having an antenna (1) for transmitting a signal of reused frequency within a specified range from the antenna (1), the antenna (1) having multiple radiating antenna elements, each of the antenna elements being adjusted in phase and in amplitude of radiated signal across the radiationg elements to mitigate radiation above the horizon, and each of the antenna elements being adjusted in phase and in amplitude of radiated signal therefrom to decrease attenuation in radiated power with distance from the antenna (1).
    Type: Grant
    Filed: June 29, 1999
    Date of Patent: June 6, 2006
    Assignee: The Whitaker Corporation
    Inventors: Scott Bermingham Doyle, Angelos Alexanian, Charled Russell Wright
  • Patent number: 7043040
    Abstract: A hearing aid apparatus is intended for sound transmission from one side of the head to the cochlea on the other side of the head for rehabilitation of patients with unilateral hearing loss. The hearing aid apparatus is based on the bone conducting principle for bone anchored hearing aids and includes a vibratory generating part that is mechanically anchored by means of osseointegration in the skull bone at the deaf side of the patient and arranged to transmit vibrations through the skull bone from the deaf side to the inner ear on the other side of the patient. The frequency characteristics of the apparatus are preferably adapted in such a way that the amplification is higher for frequencies above 1 kHz than for lower frequencies, which is in contrast to an ordinary bone anchored hearing aid.
    Type: Grant
    Filed: June 6, 2002
    Date of Patent: May 9, 2006
    Assignee: P&B Research AB
    Inventor: Patrick Westerkull
  • Patent number: 7039428
    Abstract: A system and method for selective paging provides a page to a paging transceiver but does not automatically provide an associated message. The paging transceiver receives the page and alerts the user that a message is waiting and preferably provides a short description of the message. The user can then download or otherwise act on the message at a time and at a place convenient to the user. The user can therefore place the paging transceiver in a location where it can easily receive and reply to the message. The paging system conserves air time and the paging transceiver conserves memory by not automatically receiving the associated messages. The paging transceiver can receive transmissions during off-peak hours and has a timer which can be programmed so that messages are delivered at a desired time. The content of the messages may be stored in a plurality of different systems and one or more of these systems may page the paging transceiver to inform it of the messages.
    Type: Grant
    Filed: October 13, 2000
    Date of Patent: May 2, 2006
    Assignees: Thompson Investment Group, LLC
    Inventor: Richard J. Helferich
  • Patent number: 7035642
    Abstract: A method for engineering management and planning for the design of a wireless communications network in three-dimensions (3-D) combines computerized organization, database fusion, and radio frequency (RF) site-specific planning models. The method enables a designer to keep track of wireless system performance throughout the process of pre-bid design, installation and maintenance of a wireless system. Using a database of information that defines the desired environment, predictions of antenna coverage, system coverage and interference, and other wireless system performance criteria, such as frame error rate and network throughput, can be made. Watch points are created to ensure, in real time, that any modifications to the design of the wireless system do not degrade the performance of the system with respect to the watch point locations.
    Type: Grant
    Filed: September 6, 2001
    Date of Patent: April 25, 2006
    Assignee: Wireless Valley Communications, Inc.
    Inventors: Theodore S. Rappaport, Roger R. Skidmore
  • Patent number: 7031749
    Abstract: Received signal inputted from an antenna 1 is fed via a received signal mixer 2 and an A/D converter 3 to a demodulator 4. The demodulator 4 is operated according to software down-loaded in a software memory 5 from a program memory 6. A demodulator output digital signal is fed to a base-band signal processor 8 for signal processing, and then fed out through a man-machine interface 9 to the outside. On the transmission side, a signal to be transmitted is inputted to a modulator 10 though a route converse to that of the received signal. The modulator output is fed to a D/A converter 11 for conversion to an analog signal, which is in turn fed to a transmission signal mixer 12 for conversion to a carrier frequency, and then fed to a module, which includes a power amplifier 21, a transmission signal filter 22 and an isolator 23, to be transmitted via the antenna 1.
    Type: Grant
    Filed: March 22, 2000
    Date of Patent: April 18, 2006
    Assignee: NEC Corporation
    Inventor: Masataka Mitama
  • Patent number: 7031707
    Abstract: A method and apparatus for providing an indication, in a system which uses a gateway location register to reduce signaling between visitor location registers and home location registers, to a home location register of the features not supported by a visitor location register. The indication of the features not supported by the visitor location register can be provided to the home location register during a location update message exchange or a data restoration request message exchange. The indication can also be provided in an information update message.
    Type: Grant
    Filed: April 12, 2000
    Date of Patent: April 18, 2006
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Johan Rune, Yun Chao Hu, Juan Noguera-Rodriguez
  • Patent number: 7024223
    Abstract: A standard interface for interfacing a wireless modem assembly with a host device comprises a primary serial interface, a secondary serial interface, and a differential serial interface for supporting communication between the wireless modem assembly and the host device. The standard interface can be implemented in a standardized connector, such as a 70-pin connector having unused pins for future feature expansion. The standard interface also provides for other interfaces including, for example, power, modem status, audio, voice, general purpose input/output, and subscriber identification.
    Type: Grant
    Filed: March 5, 2002
    Date of Patent: April 4, 2006
    Assignee: Novatel Wireless, Inc.
    Inventor: Richard Dominic Wietfeldt
  • Patent number: 7006807
    Abstract: Transitory audio information that is subject to interruption is provided without loss of content. Transitory audio information received from an audio source is audibly provided until an interrupt signal is received. The transitory audio information is buffered while a message associated with the interrupt signal is audibly provided. Upon conclusion of the message, the buffered transitory audio information is audibly provided.
    Type: Grant
    Filed: February 12, 2001
    Date of Patent: February 28, 2006
    Assignee: Delphi Technologies, Inc.
    Inventors: Francis E. Szczublewski, Laci J. Jalics
  • Patent number: 7003304
    Abstract: A paging transceiver and method for selectively paging provides a page to a paging transceiver but does not automatically provide an associated message. The paging transceiver receives the page and alerts the user that a message is waiting and preferably provides a short description of the message. The user can then download or otherwise act on the message at a time and at a place convenient to the user. The user can therefore place the paging transceiver in a location where it can easily receive and reply to the message. The paging system conserves air time and the paging transceiver conserves memory by not automatically receiving the associated messages. The user can determine the time at which the paging transceiver receives transmissions, such as during off-peak hours. The messages stored by the systems and delivered to the paging transceiver may be of different types, such as voice, text, audio, or even video.
    Type: Grant
    Filed: October 13, 2000
    Date of Patent: February 21, 2006
    Assignees: Thompson Investment Group, LLC, Richard J. Helferich
    Inventor: Richard J. Helferich
  • Patent number: 6999769
    Abstract: In-progress call transfer between a wireless telephone and a wired telephone is effected using a short-range wireless communication link between the devices. Each of the devices are provisioned to include a short-range radio or infrared transceiver so that the devices can communicate with each other over the short-range wireless communication link, preferably using a given short-range wireless protocol. When the wireless telephone's battery is almost exhausted, or for any other reason that the user may desire, the wireless telephone requests the wired telephone's phone number by communicating with wired telephone over the short-range wireless communication link. Upon receipt of the wired telephone's phone number the wireless telephone issues a call transfer request to a cellular base station, passing the wired telephone's phone number. The base station and the network then re-route the call to the wired telephone.
    Type: Grant
    Filed: December 8, 1999
    Date of Patent: February 14, 2006
    Assignee: Koninklijke Philips Electronics N.V.
    Inventor: Alexandre Henon
  • Patent number: 6996383
    Abstract: An automatic gain control (AGC) system (100) for a controlled gain receiver (1101) includes a magnitude generator (160) and a gain corrector (170). The magnitude generator (160) generates a binary voltage squared signal (165) having a binary value that is directly proportional to a recovered signal power of an intercepted signal (113). The gain corrector (170) determines an adjustment of a gain control value (195) as a multiple of increments that are approximately 3 decibel (dB), by shifting (475, 445) a reference threshold by one or more bits and comparing (485, 455) the shifted reference threshold to the binary voltage squared signal. An initial setting of a state of a step attenuator (114) during a track mode (172) is determined during a warm up mode (171) by comparing the binary voltage squared signal (165) to two different thresholds (245, 255). A filter (162) accommodates a variety of bandwidths and symbol rates by settings of an accumulator (505) and scaler (510) that are included in the filter (162).
    Type: Grant
    Filed: January 17, 2003
    Date of Patent: February 7, 2006
    Assignee: Motorola, Inc.
    Inventors: James David Hughes, John Richard Oakley, Clinton C Powell, II
  • Patent number: 6996379
    Abstract: A linear high powered integrated circuit transmitter includes an up-conversion module, a plurality of power amplifiers, balanced integrated circuit coupling, and a combining circuit. The up-conversion module is operably coupled to produce a differential up-converted signal by mixing one or more local oscillations with a low intermediate frequency (IF) signal. The balanced integrated circuit coupling couples the plurality of power amplifiers to the up-conversion module such that the power amplifiers amplify the up-converted signal to produce a plurality of amplified radio frequency (RF) signals. The combining circuit is operably coupled to combine the plurality of amplified RF signals to produce a transmit RF signal.
    Type: Grant
    Filed: July 23, 2002
    Date of Patent: February 7, 2006
    Assignee: Broadcom Corp.
    Inventor: Shahla Khorram
  • Patent number: 6993308
    Abstract: A likelihood calculating section 205 calculates a likelihood of a data portion signal and outputs a weighting coefficient according to the likelihood to a multiplier 206. The multiplier 206 multiplies a data channel estimation value output from a data channel estimating section 204 by the weighting coefficient output from the likelihood calculating section 205, whereby weighting the data channel estimation value according to likelihood of the data portion signal. A combining section 207 combines a PL channel estimation value with the data channel estimation value weighted according to the likelihood of data portion signal to obtain a final channel estimation value.
    Type: Grant
    Filed: July 25, 2001
    Date of Patent: January 31, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kenichi Miyoshi, Mitsuru Uesugi
  • Patent number: 6993303
    Abstract: The present invention avoids distortion in a radio frequency device due to a received RF signal which has a voltage strength that is too high. The invention comprises a radio frequency signal attenutation circuitry, a radio frequency signal processing circuitry, intermediate frequency processing circuitry, and a gain controlling unit. The gain controlling unit is configured to output a control signal to the radio frequency signal attenuation circuitry and intermediate frequency processing circuitry. The radio frequency signal attenuation circuitry is configured to attenuate a radio frequency signal prior to being processed by radio frequency processing circuitry and intermediate frequency processing circuitry. Accordingly, saturation in the radio frequency signal processing circuitry and intermediate frequency processing circuitry is avoided.
    Type: Grant
    Filed: July 24, 2002
    Date of Patent: January 31, 2006
    Assignee: LG Electronics Inc.
    Inventor: Soon-Ik Kwun