Patents Examined by Tanmay Lele
  • Patent number: 6885846
    Abstract: A network of electronic devices such as computers (50) and/or calculators (36, 38) uses low power communication to transmit wireless signals through a distributed antenna system (40). The distributed antenna system may be formed in conjunction with ceiling or floor tiles 62 or modular office components (44 and 46) or student desks. The distributed antenna system 40 reduces the effective distance between a transmitting and receiving device to a nominal distance.
    Type: Grant
    Filed: March 31, 1997
    Date of Patent: April 26, 2005
    Assignee: Texas Instruments Incorporated
    Inventors: Carl M. Panasik, Anthony B. Wood
  • Patent number: 6882854
    Abstract: A radio network system is provided for discriminating a particular network connection among a plurality of networks for coupling a plurality of radio communication equipment. The system includes a master radio communication equipment and a slave radio communication equipment each having at least one light emitting element for indicating a particular coupling of a radio network among a plurality of radio networks, respectively. The light emitting element provided in the master radio communication equipment and the slave radio communication equipment flickers synchronously with a predetermined lighting interval or a predetermined lighting color for discriminating the particular coupling of the network.
    Type: Grant
    Filed: March 23, 2001
    Date of Patent: April 19, 2005
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Koichi Kobayashi
  • Patent number: 6876854
    Abstract: Runs of loss cable are disposed in succession along a zone of radio coverage and coupled with feeder means from base stations of a cellular mobile communication network. The feeder means apply first radio frequency signals from a first base station to a first cable run and second radio frequency signals from a second base station to a second cable run, adjacent to the first run. They also apply at least part of the second radio frequency signals to the first cable run, preferably attenuated relative to the first radio frequency signals as applied to the first cable run, creating a zone of partial coverage between adjacent cells in order to facilitate operation of an automatic cell changeover during calls.
    Type: Grant
    Filed: November 27, 2000
    Date of Patent: April 5, 2005
    Assignee: Matra Nortel Communications
    Inventor: Jean-Pierre Ferray
  • Patent number: 6876855
    Abstract: A system for optimizing the routing of a call originated from a land-based terminal (43) to a wireless mobile terminal (47) utilizing the interaction between a server controlled Internet protocol network (45) and the home location register (53) for the number assigned to the mobile terminal. In response to a call request by the server, the home location register identifies the visited location register (57) in contact with the mobile terminal and obtains a temporary local directory number of the local serving switch (63) in contact with a mobile data unit (51) connected to the mobile terminal. The server then uses the temporary local directory number to reach a data unit (70) on the network, which is used to place a local call over the public switched telephone network (72) to the serving switch.
    Type: Grant
    Filed: December 10, 1999
    Date of Patent: April 5, 2005
    Assignee: GTE Wireless Incorporated
    Inventor: Walter Wesley Howe
  • Patent number: 6873848
    Abstract: A method of radio communications and routing and connection in a mobile radio system consisting of the steps of providing nodes for transmitting and receiving signals wherein the nodes are positioned in a free form fashion within a defined area, and the routing of a communication is determined based on selecting the most desirable and normally the shortest path between the communication source and the destination drop.
    Type: Grant
    Filed: April 19, 2001
    Date of Patent: March 29, 2005
    Inventor: Jerry R. Schloemer
  • Patent number: 6871078
    Abstract: The present invention provides a method of controlling transmission power including the steps of: increasing transmission power immediately after a data transmission without waiting for a response signal to be received indicating a result of receiving the transmitted data; if the response signal received reveals that the transmitted data has been unsuccessfully received, retransmitting the same data and also holding transmission power applied when the data is retransmitted; if the response signal received reveals that the transmitted data has been successfully received and data previously transmitted has also been successfully received, reducing transmission power for a subsequent data transmission by a predetermined amount; and if the response signal received reveals that the data transmitted has been successfully received and data previously transmitted has been unsuccessfully received, setting transmission power for the subsequent data transmission depending on the transmission power held being applied whe
    Type: Grant
    Filed: January 30, 2001
    Date of Patent: March 22, 2005
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Ryousuke Nishioka, Hidetomo Ohnishi
  • Patent number: 6856805
    Abstract: The present invention relates to a method and a system for transmitting data packets between a mobile station and a current base station of a mobile radio system. The mobile station repeatedly transmits measurement reports each containing measurement data relating to a number of adjacent base stations to the current base station. A later measurement report contains reference data for at least one adjacent base station whose measurement data have already been received from the current base station in an earlier measurement report and stored, the reference information referring to the measurement data of the respective earlier measurement report. As a result, measurement data relating to a relatively large number of adjacent base stations can be transmitted in the measurement reports or the transmission bandwidth can be reduced.
    Type: Grant
    Filed: August 26, 1998
    Date of Patent: February 15, 2005
    Assignee: Siemens Aktiengesellschaft
    Inventor: Bernhard Raaf
  • Patent number: 6842606
    Abstract: A wireless information storage device and method for putting the device on or into an item are disclosed. According to the disclosed device and method, even if a plurality of wireless information storage devices is perfectly stacked, it is possible to read information from or write information into those wireless information storage devices with certainty at a time, furthermore, it is possible to improve efficiency of communicating with the wireless information storage device or the item.
    Type: Grant
    Filed: March 2, 2000
    Date of Patent: January 11, 2005
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Hisao Takemura
  • Patent number: 6839570
    Abstract: A circuit for interfacing a modem in a wireless communication device to a Subscriber Interface Module (SIM) includes a modem controller, a Universal Asynchronous Receiver/Transmitter (UART) connected to the modem controller, a programmable clock circuit adapted to generate a SIM clock and a UART clock independently of one another based on a common clock and a control signal provided to the programmable clock circuit, a reset circuit to generate a SIM reset signal, and a power control circuit to control powering on and off the SIM, all on an integrated circuit chip. The circuit also includes a Bus Interface circuit to interface the modem to the SIM using a common data line.
    Type: Grant
    Filed: February 2, 2001
    Date of Patent: January 4, 2005
    Assignee: Qualcomm Incorporated
    Inventors: James A. Hutchison, IV, Steven I. Sutankayo
  • Patent number: 6834197
    Abstract: A base station apparatus, a mobile radio system, and a transmission power control method that can perform transmission power control having the high interference suppressing effect with a smaller processing delay are provided. The base station apparatus comprises: a measurement part for measuring SIRs of a received signal subjected to interference suppression by an interference suppressing receiving circuit in a former stage in an interference suppressing receiving part of the radio base station apparatus, and of a received signal subjected to interference suppression by an interference suppressing receiving circuit in a later stage; a calculation part for calculating a correction SIR based on the obtained SIRs, and for estimating a transmission power control SIR from a current first stage SIR and a past correction SIR; and a signal generator for generating a transmission power control signal by comparing the transmission power control SIR and a target SIR.
    Type: Grant
    Filed: November 30, 2000
    Date of Patent: December 21, 2004
    Assignees: Hitachi, Ltd., KDDI Corporation
    Inventors: Naruhito Nakahara, Yuuji Ishida, Naoki Tsubaki, Joichi Saito, Toshinori Suzuki, Yoshio Takeuchi, Sumaru Niida
  • Patent number: 6810267
    Abstract: When a radio terminal communicating with a fixed terminal moves out of a service area of one of radio base stations, a connection to the fixed terminal is switched to a connection to another fixed terminal device such as a voice mail device, which is preliminarily assigned by the radio terminal, to realize a call connection of the fixed terminal to thereby make an indirect communication between the radio terminal and the another fixed terminal.
    Type: Grant
    Filed: February 8, 2001
    Date of Patent: October 26, 2004
    Assignee: NEC Corporation
    Inventor: Takanobu Ihara
  • Patent number: 6804510
    Abstract: An apparatus, program product, and method utilize embedded source identity information within an audio broadcast signal to facilitate the reception of the audio broadcast signal from an alternate source. Such embedded information may be used, for example, to facilitate the automated selection of an alternate source of an audio broadcast signal, e.g., in response to poor reception of the primary source of the audio broadcast signal, so that a listener is less likely to miss any portion of an audio broadcast. In one particular implementation, an audio broadcast signal is a radio signal broadcast by a radio station, whereby suitable alternate sources might include another radio station that broadcasts the audio broadcast signal over a different frequency, a transmission device accessible over a telephone network, or a transmission device accessible over a computer network such as the Internet.
    Type: Grant
    Filed: May 24, 2000
    Date of Patent: October 12, 2004
    Assignee: International Business Machines Corporation
    Inventors: Cary Lee Bates, John Matthew Santosuosso
  • Patent number: 6795717
    Abstract: A communications device and method of operating the communications device are provided. The communications device includes a housing having a first edge portion. A display device is attached to a display device support member. The display support member is slidably attached to the housing to allow the display device to be positioned in an extended position beyond the first edge portion of the housing for viewing the display device when the communications device is in use and a retracted position within the housing when the communications device is not in use.
    Type: Grant
    Filed: May 4, 2000
    Date of Patent: September 21, 2004
    Assignee: 3Com Corporation
    Inventors: Tim U. Price, Rick D. Giles, Thomas A. Johnson
  • Patent number: 6792273
    Abstract: Resources are reserved or otherwise allocated in a mobile radio communications system in an efficient and timely fashion. In general, the amount of resources that will likely be necessary to support a connection with a mobile station is predicted before those resources are actually required. More specifically, an unknown value of a dynamic connection parameter, like a number of radio paths likely to be involved in supporting the connection, is predicted. In the handover context, these radio paths might correspond to paths with different base stations (as in hard and soft handover) or to paths with different base station sectors (as in softer handover). The underlying resources are allocated using the predicted connection parameter and may include, for example, data processing and memory hardware resources, software resources, radio resources, etc.
    Type: Grant
    Filed: June 16, 1999
    Date of Patent: September 14, 2004
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Jan Tellinger, Göran Engman, Stefan Wahlman, Pär Gustavsson
  • Patent number: 6788917
    Abstract: Downlink signal bursts are transmitted from a plurality of visible satellites to a plurality of user terminals in a downlink region that is serviced by the plurality of visible satellites. A first downlink signal burst is sent from a first one of the visible satellites to a first user terminal in the downlink region. A second downlink signal burst is sent from a second one of the visible satellites to the first user terminal to be received at a time that is a function of a separation distance of the first user terminal in the downlink region from the Time Alignment Center (TAC) of the downlink region. First downlink signal bursts and second downlink signal bursts also are sent to other user terminals in the downlink region. The first and second downlink signal bursts preferably are sent over respective first and second carrier frequencies.
    Type: Grant
    Filed: January 19, 2000
    Date of Patent: September 7, 2004
    Assignee: Ericsson Inc.
    Inventors: Wail M. Refai, Peter D. Karabinis
  • Patent number: 6778817
    Abstract: A system for communicating signals and data without the need for continuous telephone lines is described. This system provides a base unit connected to incoming signals, such as cable, satellite, PCS, cellular, fiber optics, XDSL, ISDN, etc, one or more extension units connected to the users telephone or electronics equipment and a communication link between the base unit and the one or more extension units. The preferred communication link employs a combination of an A/C power line carrier and a wireless RF channel. This system provides for the communication signals from a variety of sources through out a building or office without requiring either dedicated telephone lines or the availability of AC power outlets near the user's telephone extension equipment. This invention, in its preferred embodiments, is specifically adapted to meet the technical requirements of A/C power line communications, while taking advantage of RF communication within buildings or facilities.
    Type: Grant
    Filed: December 1, 1998
    Date of Patent: August 17, 2004
    Assignee: Phonex Corporation
    Inventors: Scott R. Bullock, John M. Knab
  • Patent number: 6771952
    Abstract: A communication system having a client device, a processing server and a contents server. When the client device makes a request for textual information to the processing server, the processing server searches for and receives the requested textual information from the contents server. Then, the processing server generates both abridged textual information and voice information from the received textual information, and transmits the abridged textual information to the client device. The client device requests the voice information, which corresponds to an unabridged version of the textual information, at the user's request.
    Type: Grant
    Filed: March 28, 2001
    Date of Patent: August 3, 2004
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Yoshiaki Komatsu
  • Patent number: 6768728
    Abstract: In a transmission device and method for a CDMA communication system, when a shorter frame message is generated during transmission of a longer frame message, the transmission of the longer frame message is interrupted, whereupon the shorter frame message is immediately transmitted in place of a portion of the longer frame message. In one embodiment, after the longer frame message is interrupted and the shorter frame message is transmitted, only the tail portion of the longer frame message is transmitted thereafter. That is, the replaced portion of the longer frame message is not transmitted following the shorter frame message transmission. In an alternative embodiment, following the shorter frame message transmission, the remainder of the longer frame message, from the point of interruption, is transmitted in its entirety. In the latter case, the longer frame message is delayed by the length of the shorter frame message.
    Type: Grant
    Filed: March 15, 1999
    Date of Patent: July 27, 2004
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young-Ky Kim, Jae-Min Ahn, Soon-Young Yoon, Hee-Won Kang, Hyun-Suk Lee, Jin-Soo Park, Jae-Yoel Kim
  • Patent number: RE39427
    Abstract: The cellular telephone data communication system and method involves the use of a mobile data processing interface and a cooperating static data processing interface to effectively transmit data over a cellular telephone system. Each data processing interface includes a processor which operates in the transmitting mode to add an error control correction data format to data received from an external data source. The data is divided into packets and provided to a modem which is uniquely operated to eliminate the action of the modem scramble system and to remain active in spite of a carrier signal loss. The modem is deactivated or disconnected by a disconnect signal from the processor, and when carrier signal loss occurs, this disconnect signal is provided only after the lapse of a delay period without the resumption of the carrier signal.
    Type: Grant
    Filed: April 17, 2001
    Date of Patent: December 12, 2006
    Assignee: MLR, LLC
    Inventor: Harry M. O'Sullivan
  • Patent number: RE38645
    Abstract: A laptop device includes a personal computer, a cellular transceiver, a speakerphone, and a hybrid communications control unit. The device has connectors for attaching a headset, cellular control unit, land telephone line, and additional speakers and microphones. The microprocessor-controlled hybrid communications control unit includes a modem, a data access arrangement, and a tone generator as well as digital, analog, and power switches. The hybrid communications control unit switches the communications components and provides, under program control, the proper protocols, level, and impedance matching to connect the modem, speakerphone, headset, speaker/microphone, or cellular control unit to the landline or to the cellular network via the transceiver. Matching and switching operations are automatic and transparent to the user. The unit can also connect two of the terminal devices or connect the cellular and landlines for call relaying. The device is capable of connecting plural calls at the same time.
    Type: Grant
    Filed: May 10, 2002
    Date of Patent: November 2, 2004
    Assignee: MLR, LLC
    Inventor: Harry M. O'Sullivan