Patents Examined by Keith T. Ferguson
  • Patent number: 7031723
    Abstract: A wireless terminal is designed to prevent the user from having to wait a long time in case fetching of search data takes a long time. The wireless terminal, if it determines the need of long time for the search of GPS satellites by a GPS transceiver, inhibits the GPS transceiver from searching GPS satellites and operates on a CDMA transceiver to search for CDMA base stations. The wireless terminal fetches only CDMA base station data pertinent to the CDMA base stations and sends to a position data server, and the position data server points the location of the wireless terminal based solely on the CDMA base station data provided by the wireless terminal. Based on the inhibition of search of GPS satellites by the GPS transceiver, the time needed until the reception of positioning result can be reduced, and the user is prevented from being subjected to long time waiting.
    Type: Grant
    Filed: August 27, 2002
    Date of Patent: April 18, 2006
    Assignee: Denso Corporation
    Inventors: Michio Shamoto, Hiroyasu Ogino, Kyoji Oda, Toshihiro Takeuchi, Atsushi Hayashida, Tatsuya Shintai
  • Patent number: 6990362
    Abstract: A communication unit (10) can have at least a first receiver (11) and a second receiver (12). The latter typically consumes more power than the former during ordinary operation. Pursuant to one embodiment a communication unit can use the lower-power receiver to detect energy on a monitored channel while the second receiver is retained in a reduced power mode of operation. Upon detecting an absence of channel activity the second receiver can be restored to normal operability to effect such activities as are then presently required.
    Type: Grant
    Filed: December 16, 2003
    Date of Patent: January 24, 2006
    Assignee: Motorola, Inc.
    Inventors: Floyd D. Simpson, Jaime A. Borras, Eryk Dutkiewicz, Raad Raad, Christopher G. Ware
  • Patent number: 6987970
    Abstract: When a radio communication is made between a predetermined base station and a communication terminal, the communication terminal is allowed to make a communication if a predetermined registration processing is made. If the above registration processing is not executed, then predetermined functions other than a communication function of the communication terminal are limited. Moreover, when a predetermined operation mode is set by an operation means, at least a transmission processing at a radio communication means is stopped and an execution of predetermined functions other than the radio communication processing is not restricted. Thus, when a communication terminal apparatus incorporates therein other functions than an audio reproducing function, operation of such function can be limited properly.
    Type: Grant
    Filed: March 29, 2005
    Date of Patent: January 17, 2006
    Assignee: Sony Corporation
    Inventors: Shinji Okazaki, Hirokazu Takagaki, Katsumi Hirota, Koichi Matsuno, Ichiro Hino
  • Patent number: 6975864
    Abstract: The present invention provides methods, systems, and computer program instructions for enabling a variety of devices, particularly low-power hand-held devices, to travel seamlessly through a networking environment such as that encountered within a building by establishing connectivity to a plurality of network access points. The illusion of seamless network connectivity is provided by having these access points coordinate with a core server to perform user authentication, device address assignment, and handoff services.
    Type: Grant
    Filed: June 9, 2003
    Date of Patent: December 13, 2005
    Assignee: Symantec Corporation
    Inventors: Sandeep Kishan Singhal, Ajei Sarat Gopal, Inder Sarat Gopal
  • Patent number: 6973334
    Abstract: A cellular telephone includes a receiver connected to an antenna through a duplexer. The receiver converts a first communication signal into a voice signal code, and outputs a signal indicating an intensity of the first communication signal. The cellular telephone also includes a transmitter connected to an encoder/decoder apparatus and to the antenna through the duplexer. The receiver converts the input voice code signal from the encoder/decoder apparatus into a second communication signal. A controller controls the amplitude of the transmitter corresponding to the intensity of the first communication signal. The transmitter includes a variable amplitude amplifier and a power amplifier, and the controller includes a central processing unit and a memory. The controller controls a gain of the variable amplitude amplifier and a bias condition of the power amplifier according to a function stored in the memory.
    Type: Grant
    Filed: May 10, 2002
    Date of Patent: December 6, 2005
    Assignee: Hitachi, Ltd.
    Inventors: Makoto Katagishi, Shirou Machida
  • Patent number: 6937862
    Abstract: A method for maintaining association between switching units in a network includes the steps of determining that a call is to be routed via a base station, routing units, and a switching unit. The call is then routed via the base station, at least one routing unit, a routing link, and a switching unit. An association message is transmitted to the switching unit to inform it of an address of an additional switching unit. A mobile station within a coverage area of the base station is capable of communicating with the switching units, and elements of the system are configured to address the additional switching unit to determine whether the mobile station is communicating via an appropriate path.
    Type: Grant
    Filed: June 26, 2001
    Date of Patent: August 30, 2005
    Assignee: Nokia Corporation
    Inventors: Juha Back, Tony Hulkkonen, Tuija Hurtta, Jaakko Rajaniemi, Paul Sitch, Joanna Uusikartano
  • Patent number: 6922562
    Abstract: A method for providing information services to a wireless device roaming in a wireless system is disclosed. Normal network message traffic information is obtained from a wireless system. The normal network message traffic information is transmitted to a protocol converter. In the protocol converter, roamer information is extracted from the normal network message traffic information and converted into a protocol analyzer format. A query is transmitted to a Mobile Switching Center requesting information regarding the wireless device's serving cell or location. Information regarding the wireless device's serving cell or location is received and combined with the converted roamer information to form a roamer trigger. The roamer trigger is transmitted to protocol analyzer. In the protocol analyzer, specific information pieces regarding the wireless device are extracted. The extracted specific information pieces are transmitted to a data interpreter for translation and delivery to a wireless device.
    Type: Grant
    Filed: March 14, 2002
    Date of Patent: July 26, 2005
    Inventors: Stephen L. Ward, Richard J. Tett
  • Patent number: 6915140
    Abstract: A mobile phone device having an image sensor adapted to sense images, a mobile phone processor adapted to transmit sensed images and to receive received images and a printer processor adapted to instruct a printer assembly inside the mobile phone device to print sensed and received images.
    Type: Grant
    Filed: June 3, 2002
    Date of Patent: July 5, 2005
    Assignee: Silverbrook Research PTY LTD
    Inventor: Kia Silverbrook
  • Patent number: 6898422
    Abstract: A mail server site and a method in a mail server site provide mobile e-mail services to mobile stations connected to a digital radio communication network. Furthermore, a method in a mobile station utilizes the mobile e-mail services provided by the inventive mail server site. The mail server site includes a mail server host operating in accordance with POP3- or IMAP4-like protocols with respect to the usage of unique identifiers (UIDs) for identifying e-mail messages stored by the mail server host. Modified UIDs are allocated to e-mails received by the mail server site and transmitted to mobile mail clients using a short message based service. When the mail server host communicates with these mail clients, these modified UIDs will be used in the same way as conventional UIDs are used within the scope of a POP3 or IMAP4 protocol.
    Type: Grant
    Filed: April 12, 2001
    Date of Patent: May 24, 2005
    Assignee: Microsoft Corporation
    Inventors: Marie Bern, Bruno Blank, Anders Hagberg, Mattias Häggström, Jonas Kjellström, Jonas Lindroth, Jan Ouzounidis
  • Patent number: 6889055
    Abstract: A method and system of reducing average power consumption in a wireless communication device (WCD) that operates in sleep and awake modes during monitoring of a slotted paging channel includes the steps of providing a plurality of counters; establishing a roll over point for each counter at a predetermined offset relative to each other counter; identifying a timing, point for at least one roll over point; and transitioning between the sleep and awake modes during the occurrence of an identified timing point.
    Type: Grant
    Filed: October 16, 2000
    Date of Patent: May 3, 2005
    Assignee: Qualcomm Inc.
    Inventor: Arthur James Neufeld