Patents Examined by Adel Youssef
  • Patent number: 7925302
    Abstract: Receiver diversity in a wireless device is controlled in response to operating conditions, transmission requirements, and control settings. The control of diversity reduces power consumption by enabling receive diversity on given conditions. Operating conditions, transmission requirements, and control settings are used separately or used in conjunction to determine whether benefits of multi-antenna receive diversity, such as higher link capacity, higher data throughput, lower transmit power, and lower error rate, warrant the higher power cost of the diversity.
    Type: Grant
    Filed: March 4, 2005
    Date of Patent: April 12, 2011
    Assignee: Qualcomm Incorporated
    Inventors: Fatih Ulupinar, Gregory A. Breit, Brian C. Banister, Edward G. Tiedemann, Jr.
  • Patent number: 7720503
    Abstract: A method for controlling power in a communication system. In the power control method, a transmitter receives feedback information from receivers located in its own cell; determines data rates of the receivers according to the received feedback information, calculates a load of the cell by calculating an amount of data to be transmitted to the receivers; and calculates transmission power of the transmitter by comparing the load of the cell with a threshold.
    Type: Grant
    Filed: June 11, 2007
    Date of Patent: May 18, 2010
    Assignees: Samsung Electronics Co., Ltd., Seoul National University Industry Foundation
    Inventors: Ho-Joong Kwon, Byeong-Gi Lee, Han-Byul Seo, Won-Hyoung Park
  • Patent number: 7697890
    Abstract: A wireless multi-hop network of a communication system is structured with a number of the communication devices and the collecting communication device. Transmission information from each communication devices is sequentially relayed to reach the collecting communication device. Each communication device features a function for on/off control of a transmission/reception processing section.
    Type: Grant
    Filed: May 22, 2007
    Date of Patent: April 13, 2010
    Assignee: Oki Electric Industry Co., Ltd.
    Inventors: Kiyoshi Fukui, Naoki Wakamiya, Tetsuya Kawai, Masayuki Murata
  • Patent number: 7693558
    Abstract: A wireless communication terminal transmitting/receiving data with a folder closed and a method thereof are disclosed. The wireless communication terminal includes: a wireless transceiver for transmitting and receiving data through a wireless communication network; a storage for storing the transmitted data and the received data; a detector for detecting a state of the folder of the wireless communication terminal in order to determine whether the folder is opened or closed; an outputting unit for indicating a result of the data transmission/reception; and a controller for analyzing the transmitted/received data to detect the last packet of the data, and continuing to perform the data transmission/reception without regard to the detected state of the folder until the last packet of the data has been detected.
    Type: Grant
    Filed: April 13, 2005
    Date of Patent: April 6, 2010
    Assignee: Pantech & Curitel Communications, Inc.
    Inventors: Jin-Woo You, Chun-Ho Park
  • Patent number: 7693536
    Abstract: An exemplary method for a communication network according to the present invention includes detecting movement of a mobile station, and modifying a control for the communication network based on the detection of the movement. In an exemplary embodiment, a transmit power control may be increased or decreased based the movement of the mobile station which is detected. Further, the network may determine a base station among plurality of base stations which provides the best communication path, taking into account a movement state of the mobile station. Accordingly, a stable hand over process may be realized, providing favorable communication quality and minimizing the occurrence of disconnection of the mobile terminal from a base station.
    Type: Grant
    Filed: August 30, 2005
    Date of Patent: April 6, 2010
    Assignee: NEC Corporation
    Inventor: Yuki Kogure
  • Patent number: 7689122
    Abstract: A signal detect circuit includes a signal strength measuring differential output linear amplifier. A positive peak detection circuit is coupled to the positive output terminal of the linear amplifier and generates a signal that represents a peak magnitude of a signal received from the positive output terminal. Likewise, a negative peak detection circuit is coupled to the negative output terminal of the linear amplifier and generates a signal that represents a peak magnitude of a signal received from the negative output terminal. Upon power up of the signal detect circuit, a comparison circuit detects when the positive and negative peak signal magnitudes has both exceed respective values at least once. Once this occurs, the comparison circuit compares an interpolation of the positive peak signal and the negative peak signal with the value. If the interpolated signal falls below the value, the comparison circuit generates a signal representing that no signal is being received.
    Type: Grant
    Filed: March 4, 2005
    Date of Patent: March 30, 2010
    Assignee: Finisar Corporation
    Inventors: Tim Moran, Greta Light
  • Patent number: 7684823
    Abstract: A cellular mobile radio network having at least one base station integrated into a facility supplied via a power supply network and being connected to an assigned base station controller. The at least one base station includes a module for exchanging radio frequency signals with mobile radio devices; a first transceiver module configured to couple the at least one base station to the power supply network; and a control device configured to control the facility. The control device is connected to the facility via the power supply network or directly, and includes an identification module and a module for communicating with a central unit, the control device being identifiable by the central unit based on the identification module.
    Type: Grant
    Filed: December 1, 2005
    Date of Patent: March 23, 2010
    Assignee: Swisscom Mobile AG
    Inventor: Eric Lauper
  • Patent number: 7676239
    Abstract: A method for operating a power controller in a wireless communication device is provided that includes generating a power controller output signal using an open loop polar modulation scheme. The power controller output signal is operable to control the power delivered to a high-band power amplifier and a low-band power amplifier. A band state is determined for the wireless communication device. The power controller output signal is provided to the high-band power amplifier when the band state is a high-band state and to the low-band power amplifier when the band state is a low-band state.
    Type: Grant
    Filed: February 24, 2005
    Date of Patent: March 9, 2010
    Assignee: National Semiconductor Corporation
    Inventors: James T. Doyle, Dae Woon Kang
  • Patent number: 7676240
    Abstract: The present invention provides a method for power control based on estimates of cumulative received energy. The method includes accessing a plurality of slot detection metrics associated with a plurality of slots, combining the plurality of slot detection metrics, and determining a power control instruction based upon the combined slot detection metrics.
    Type: Grant
    Filed: February 28, 2005
    Date of Patent: March 9, 2010
    Assignee: Alcatel-Lucent USA Inc.
    Inventor: Ashok R. Rudrapatna
  • Patent number: 7664521
    Abstract: In the mobile communication system, a total reception quality between a terminal and a base station is converged into a target quality, thereby suppressing a period in which the transmission power of a distant station becomes excessive.
    Type: Grant
    Filed: February 17, 2005
    Date of Patent: February 16, 2010
    Assignee: NEC Corporation
    Inventor: Kazuhiro Arimitsu
  • Patent number: 7660587
    Abstract: Efficient and effective communications are initiated from the selection, at a first user device, of a link in a resource. Based on this selection, a communications request is transmitted to a server. In addition, identification information of a second user device (such as a telephone number or an Internet Protocol (IP) address) is transmitted to the server. As a result of this request and identification information, a communication response is received at the second user device. This communications response may be of various types, such as a voice call, a message, or a rich call.
    Type: Grant
    Filed: October 26, 2005
    Date of Patent: February 9, 2010
    Assignee: Nokia Corporation
    Inventors: Jukka K. Nurminen, Balazs Bakos, Hunor Demeter, Zoltan Ivanfi, Petri Stenman, Jörgen Othman, Jukka Nihtilä, Timo K. Miettinen
  • Patent number: 7660863
    Abstract: A method for communication between a first unit and a second unit via a telecommunications network, wherein the first unit comprises a first family of applications and a second family of applications having communication capacities on the network extending beyond communication capacities of the applications of the first family, the method including: obtaining, by a confidence component belonging to the second family of applications a statement of a question to be posed to a user of the first unit in the context of an execution of an application of the first family; presenting the question by the confidence component via a user interface and capturing a response from the user by the confidence component; and for at least one type of response from the user, transmitting from the confidence component to the second unit, via the network, at least one message identifying the question presented and indicating the response captured, said message being transmitted under conditions inaccessible to the applications of
    Type: Grant
    Filed: October 29, 2003
    Date of Patent: February 9, 2010
    Assignee: France Telecom
    Inventors: Benoît De Boursetty, Manuel Gruson, Dimitri Mouton
  • Patent number: 7623890
    Abstract: A receiver accepts a digital signal having an upper side digital signal located in a higher frequency range on a frequency axis than an analog signal, and a lower side digital signal located in a lower frequency range on the frequency axis than the analog signal. A BPF (15) allows the analog signal to pass therethrough and a BPF (16) allows the analog signal and the digital signal to pass therethrough. BPFs (18) and (19) accept the output of the BPF (16) and output the upper side digital signal and the lower side digital signal, respectively. A digital receive level determining unit (20) and a selection SW (17) select either of the outputs of the BPFs (15) and (16) according to the receive levels of the upper side digital signal and the lower side digital signal, and output the selected output as a selected signal. The receiver then demodulates this selected signal.
    Type: Grant
    Filed: April 15, 2005
    Date of Patent: November 24, 2009
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Soichi Nagano, Hiroyuki Nagahama
  • Patent number: 7623880
    Abstract: Method and apparatus for enhanced selection of a channel for use in redistributing mobile stations to various frequencies in a communication system. In one aspect, the method appends a redistribution alteration record to a common channel redistribution message. The redistribution alteration record alters the sequencing of the mobile station when selecting a channel in the common channel redistribution message.
    Type: Grant
    Filed: October 21, 2005
    Date of Patent: November 24, 2009
    Assignee: QUALCOMM Incorporated
    Inventors: Ragulan Sinnarajah, Jun Wang
  • Patent number: 7620410
    Abstract: A broadcast station synchronization method in a mobile terminal operating with a system clock different from the reference clock of a broadcast station, wherein a clock synchronized with the broadcast station is reproduced according to an internal reference clock corrected by the reference time information from the broadcast station, a difference between an elapsed time at a predetermined time interval and the audio reproduction time is detected, the audio reproduction time is adjusted to cancel the difference, and the PCM transmission for reproducing the audio uses a signal indicating the PCM data transmission completion as a trigger for latching the internal reference clock count unit reproducing the clock synchronized with the broadcast station so as to acquire the clock time synchronized with the broadcast station of the same period as the audio reproduction time per a predetermined period, thereby performing synchronization with the broadcast station.
    Type: Grant
    Filed: October 28, 2005
    Date of Patent: November 17, 2009
    Assignee: Renesas Technology Corp.
    Inventors: Kazuyuki Takizawa, Ikuya Arai, Kazuo Sakiyama
  • Patent number: 7610060
    Abstract: The mobile wireless communication terminal includes a first antenna, a second antenna, a signal-level detector which detects a level of a signal having been transmitted from the second antenna and having been received through the first antenna, and a matching unit which matches the first antenna by selecting a matching constant of the first antenna to optimize the signal-level detected by the signal-level detector.
    Type: Grant
    Filed: March 29, 2005
    Date of Patent: October 27, 2009
    Assignee: NEC Corporation
    Inventor: Naoaki Oodaira
  • Patent number: 7610333
    Abstract: Messages are generated by a first device which messages together have the purpose of identifying a predetermined number of devices which satisfy a test condition included in each message. These messages are sent respectively to on-line devices neighboring the first device. To ensure that no more devices than necessary are identified by the messages, each message includes a variable which is referred to as a token bucket which indicates the number of devices to be discovered by the message. Additionally, each message includes a unique identifier. When one device receives a discovery message sent from another device, it determines if it satisfies the test condition and if so it sends an acceptance message to the originating device, decrements the token bucket in the message and forwards on any remaining tokens to another neighbor. The process stops once all tokens have been disposed of in this way.
    Type: Grant
    Filed: December 11, 2003
    Date of Patent: October 27, 2009
    Assignee: British Telecommunications plc
    Inventors: Derrick D Robertson, Paul F McKee
  • Patent number: 7577401
    Abstract: A system and method for signal distribution within a satellite reception installation. The system includes a receiver for receiving a satellite signal, and for selecting an external signal from among several external signals included in the satellite signal. The signal selected is pre-processed. A plurality of processing units are each linked to the receiver via a respective associated wire link and operating in reception in the UHF frequency band called Satellite Intermediate Band (SIB) and a signal distribution subsystem with a switching matrix for switching the pre-processed selected external signal to at least one of the processing units via the associated wire link.
    Type: Grant
    Filed: January 19, 2005
    Date of Patent: August 18, 2009
    Assignee: STMicroelectronics SA
    Inventor: Jean-Yves Couet
  • Patent number: 7570915
    Abstract: An antenna unit equipped with a satellite radio tuner and a tuner-unequipped head unit are connected to each other through a serial bus cable. Equipped in the antenna unit, the satellite radio tuner has a tuner portion, a digital demodulating portion, an interface portion, and a CPU. The interface portion serves as a speech/serial converting portion for converting a digital speech signal into a serial signal. The head unit includes an interface portion for receiving the serial signal sent from the antenna unit through a serial bus cable. The interface portion serves as a serial/speech converting portion for converting the received serial signal into the speech signal.
    Type: Grant
    Filed: August 30, 2005
    Date of Patent: August 4, 2009
    Assignee: Mitsumi Electric Co., Ltd.
    Inventors: Takeo Watanabe, Yasuyuki Honma, Takumi Suzuki
  • Patent number: 7565162
    Abstract: A station determines the presence/absence of directional beam control in an access point, on the basis of received power measured when data transmitted from the access point are received, and the type of the received data. In accordance with the result of this determination, the station controls transmitting power to transmit data to the access point.
    Type: Grant
    Filed: October 25, 2005
    Date of Patent: July 21, 2009
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tomoko Adachi, Kuniaki Ito, Hideo Kasami, Kiyoshi Toshimitsu