Patents Examined by Tan Trinh
-
Patent number: 6957088Abstract: A cellular phone includes an X-axis magnetic sensor for outputting a first value corresponding to a component of an external magnetic field along the direction of a transverse axis of the main body, and a Y-axis magnetic sensor for outputting a second value corresponding to a component of the external magnetic field along the direction of a longitudinal axis of the main body. The cellular phone includes a ROM which stores a conversion table defining the relation between the first and second values and values of azimuth and inclination angle of the longitudinal axis of the main body. The cellular phone determines the azimuth and inclination angle on the basis of the first and second values actually output from the X-axis and Y-axis magnetic sensors and with reference to the conversion table.Type: GrantFiled: November 22, 2002Date of Patent: October 18, 2005Assignee: Yamaha CorporationInventors: Hirokazu Kato, Hideki Sato, Michihiko Goto, Toshihiko Muramatsu
-
Patent number: 6957078Abstract: A power gating module (200) for a downlink beam frame signal (402) includes a power amplifier (210) for amplifying for transmission frame signals that include at least a first header signal (418), a first payload signal (420), a second header signal (424), and a second payload signal (426). The power gating module (200) further includes a power gating circuit (300) coupled to the power amplifier (210). The power gating circuit (300) includes a power gate input (318) and is responsive to a power gating signal to remove power from at least one of the first header signal (418) and first payload signal (420) in combination, and the second header signal (424) and second payload signal (426) in combination before amplification by the power amplifier (210).Type: GrantFiled: June 21, 2000Date of Patent: October 18, 2005Assignee: Northrop Grumman CorporationInventors: Esmaell Yousefi, Stuart T. Linsky, Mark E. Bever, Fred C. Tramm, Lisa A. Moy-Yee, Vincent Nguyen, Gefferie H. Yee-Madera
-
Patent number: 6957083Abstract: There is provided a mobile telephone in which a camera portion is rotatably provided in a coupling partition for rotatably coupling a first casing and a second casing with each other, a main display part and a manipulating part are provided in a casing surface which is hidden in a condition in which the first casing and the second casing are folded to each other. And a subdisplay part and an image pick-up button are provided in a first casing surface which is always exposed, and a switch for changing over the display condition of the subdisplay part between a camera mode and an equipment status display mode is provided, whereby the image pick-up by the camera portion can be simply carried out with no affection by folding motion of the casings.Type: GrantFiled: February 26, 2003Date of Patent: October 18, 2005Assignee: Hitachi, Ltd.Inventors: Minoru Ikeda, Yoshihiro Iwama, Yuichiro Kota, Kazuo Shimoyamada
-
Patent number: 6944468Abstract: A transmit power control method and system used in radio communications between a transmitting station and a receiving station is provided. The method and system employ a so-called double closed-loop control technique, and target signal quality is updated so that data quality received at the receiving station satisfies prescribed target data quality. When data are transmitted discontinuously, first target signal quality updated immediately before an idle period is held, and second target signal quality higher than the first target signal quality is set when data transmission resumes immediately after the idle period. The transmit power of the transmitting station is regulated so that signal quality at the receiving station satisfies the second target signal quality when the data transmission resumes.Type: GrantFiled: June 28, 2002Date of Patent: September 13, 2005Assignee: NTT DoCoMo, Inc.Inventor: Yukihiko Okumura
-
Patent number: 6941108Abstract: A VSAT station and a VSAT communication system have a demand assign multiple access function for keeping a transmission path only for a required period of time to effectively use frequencies. The VSAT station has a transmission controller for temporarily reading and storing communication data 41 to be transmitted in buffer 42 and outputting the stored communication data as transmission data 43 after elapsed of a given period of time. Communication traffic monitoring circuit 45 monitors the stored amount of communication data in buffer 42 and outputs communication path selecting signal 46. Transmission data switching circuit 44 selects a transmission circuit to transmit the transmission data. If the communication traffic between communicating stations is increased, then dedicated line 49 is established in another frequency band. If CSC line 48 is congested, then dedicated line 49 is established to reduce the burden on CSC line 48.Type: GrantFiled: December 4, 2000Date of Patent: September 6, 2005Assignee: NEC CorporationInventor: Hizuru Nawata
-
Patent number: 6934556Abstract: A mobile station in a mobile communications system directs a base station to raise a transmission power using identification data, when a reception quality measured by the mobile station is lower than a desired reception quality. The mobile station also directs the base station to lower the transmission power using identification data, when the reception quality measured by the mobile station is higher than the desired reception quality.Type: GrantFiled: August 13, 2002Date of Patent: August 23, 2005Assignee: Mitsubishi Denki Kabushiki KaishaInventor: Michiaki Takano
-
Patent number: 6934555Abstract: A wireless network planning tool simulates wireless network operation, including subscriber admission processing based resource reservation procedures. Simulated subscribers are associated with an application type. Application types are broadly categorized as either voice type or data type applications. Subscribers of both types are simultaneously simulated. During subscriber admission processing, the CDMA planner attempts to admit simulated subscribers to individual sectors or base stations. At each sector, a percentage of the total forward power capacity is reserved for voice users, and a second or remaining percentage may be reserved for data users. When admitting a voice user to a sector with insufficient remaining power in its voice bucket, the CDMA planner may borrow from the power bucket reserved for data users. Setting aside a power bucket for voice users at each sector insures that one or a few high data rate users do not consume all available resources in a sector.Type: GrantFiled: June 29, 2001Date of Patent: August 23, 2005Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Juan J. Silva, Mauricio Guerra, Reza Shahidi
-
Patent number: 6931247Abstract: This disclosure provides a solar rechargeable aircraft that is inexpensive to produce, is steerable, and can remain airborne almost indefinitely. The preferred aircraft is a span-loaded flying wing, having no fuselage or rudder. Traveling at relatively slow speeds, and having a two-hundred foot wingspan that mounts photovoltaic cells on most all of the wing's top surface, the aircraft uses only differential thrust of its eight propellers to turn. Each of five segments of the wing has one or more motors and photovoltaic arrays, and produces its own lift independent of the other segments, to avoid loading them. Five two-sided photovoltaic arrays, in all, are mounted on the wing, and receive photovoltaic energy both incident on top of the wing, and which is incident also from below, through a bottom, transparent surface. The aircraft includes hinges and actuators capable of providing an adjustable dihedral for the wing. The actuators can be motors or control surfaces.Type: GrantFiled: February 20, 2001Date of Patent: August 16, 2005Assignee: Aerovironment, Inc.Inventors: Earl C. Cox, Kyle D. Swanson
-
Patent number: 6928299Abstract: In a method for transmitting user identification data to a wireless communication device (1), user data is stored in a user data identification module (2). Upon initiating operation of the wireless communication device, the user data is examined to obtain access rights of the user of the wireless communication device. The user data is transmitted at least partly in a wireless manner from the user data identification module to the wireless communication device. The invention relates also to a user identification module having means (9) for storing user data and means (4, 6) for transmission of user data to a wireless communication device, and relates also to be wireless communication device (1). The wireless communication device includes means (5) for receiving user data and means (11) for examining the user data to obtain the access rights of the user of the wireless communication device. The data transmitting means (4) includes wireless communication means.Type: GrantFiled: August 3, 2000Date of Patent: August 9, 2005Assignee: Nokia Mobile Phones Ltd.Inventors: Juha Rinne, Ilkka Ratamo
-
Patent number: 6922545Abstract: This invention provides a vehicle compartment radio LAN system for communicating with a terminal installed in a vehicle compartment through a repeater, wherein a repeater is provided in front of each seat row. Thus, a terminal installed in a front seat communicates by radio through a repeater, a terminal installed in a second seat communicates by radio through another repeater and a terminal installed in a third seat communicates by radio through still another repeater.Type: GrantFiled: February 12, 2001Date of Patent: July 26, 2005Assignee: Yazaki CorporationInventor: Yoshinori Nakatsugawa
-
Patent number: 6907275Abstract: The invention provides a method for inputting, displaying and transmitting handwriting characters used in a mobile phone and said mobile phone. The method according to the invention comprises the steps of: inputting handwriting characters; sampling said handwriting characters; performing A/D conversion of the sampled handwriting characters to obtain a signal; encoding said signal in accordance with a specific protocol to obtain encoded data; converting the encoded data into mobile phone acceptable data, and outputting them; and processing the mobile phone acceptable data to display the handwriting characters and to transmit them as a short message, or to receive and display a short message (from other mobile phone) comprising the handwriting characters.Type: GrantFiled: April 26, 2001Date of Patent: June 14, 2005Assignee: ZTE CorporationInventor: Qing Wang
-
Patent number: 6907258Abstract: A base station comprises table memory elements 104 for storing a priority data table 104A indicative of priorities of data set for every application, judge control elements 103 for judging priority of received data on the basis of the priority table and outputting data whose priorities are set to first buffer elements 105A and the data whose priorities are not set to second buffer elements 105B, beacon signal transmission elements for transmitting a beacon signal at a constant interval and transmission control elements 106 for transmitting the data buffered in the first buffer elements to a destination at a constant interval by using the beacon signal as a reference and, after the data buffered in the first buffer elements is transmitted, transmitting the data buffered in the second buffer elements to a destination.Type: GrantFiled: September 24, 2002Date of Patent: June 14, 2005Assignee: NEC Infrontia CorporationInventors: Takayuki Tsutsumi, Yoshikazu Kobayashi
-
Patent number: 6907277Abstract: Method and system for providing a notification of an incoming call on a radiotelephone. When a signal indicating receipt of an incoming call is sensed, the radiotelephone provides a voice-based incoming call notification signal, using words spoken by a selected user or synthesized by a voice synthesizer to provide and alert (DA) signal that distinguishable from most or all other incoming call notification signals provided by other radiotelephones that may be nearby. The sound intensity level for the notification signal can be varied according to (i) background sound level present, (ii) estimated distance from the radiotelephone to a user and/or (iii) time delay by the user in responding to the incoming call. The notification signal can be personalized by reference to a source of the incoming call, using an on-board database.Type: GrantFiled: April 26, 2001Date of Patent: June 14, 2005Assignee: Mobigence, Inc.Inventor: Jae H. Shim
-
Patent number: 6904295Abstract: A wireless information device with its transmission power level adjustable, the drive voltage or power amplification factor associate circuit of the transmission device is adjusted depending on the communication signal strength required by the communication range and environment to select the drive voltage required by the operation of or the power amplification factor for transmission control of the transmission device, thus to avoid waste of electric power due to excessive strength of communication signal.Type: GrantFiled: August 6, 2002Date of Patent: June 7, 2005Inventor: Tai-Her Yang
-
Patent number: 6904290Abstract: Transmit power control is achieved by determining a data rate of at least a first channel and controlling the transmit power of the at least first channel based on the determined data rate. The transmit power may be adjusted based on a ratio of power between the at least first channel and a second channel, and the ratio may be adjusted based on the data rate of the first data channel. The first data channel may be a data channel, and the second data channel may be a control channel. The ratio is adjusted such that a power offset between the first channel and the second channel is proportional to the data rate of the first channel. The ratio may be adjusted based on the coding rate, data transmission rate, and/or a rate matching parameter. The transmit power may also be adjusted based on received power control commands. The transmit power may be adjusted in this manner in the uplink or the downlink direction.Type: GrantFiled: September 29, 2000Date of Patent: June 7, 2005Assignee: Telefonaktiebolaget L M Ericsson (publ)Inventor: Torgny Palenius
-
Patent number: 6904280Abstract: Systems and methods are disclosed for establishing and utilizing a mobile communication system having a mobile communication coverage area. The mobile communication system includes a plurality of mobile communication devices or units and a mobile base. The mobile base establishes a communication coverage area and provides mobility with respect to the coverage area. Communications between the plurality of mobile communication devices are transmitted to the mobile base, and retransmitted or re-broadcast from the mobile base to the destination mobile communication units.Type: GrantFiled: November 14, 2002Date of Patent: June 7, 2005Assignee: Northrop Grumman CorporationInventor: Neil G. Siegel
-
Patent number: 6901268Abstract: There is provided a method of transmitting power control information to a BSC (Base Station Controller) in a BTS (Base station Transitive System) of a mobile communication system. The BTS receives forward power control (FPC) mode information indicating a slow power control from the BSC and transmits the FPC mode information to an MS (Mobile Station). The BATS extracts an EIB (Erasure Indicator Bit) that is a power control command in a frame period from a reverse pilot channel received from the MS according to the FPC mode information, determines the status of the EIB, and transmits a reverse SCH (Supplemental Channel) message including the EIB status information to the BSC.Type: GrantFiled: April 27, 2001Date of Patent: May 31, 2005Assignee: Samsung Electronics Co., Ltd.Inventor: Yong Chang
-
Patent number: 6898439Abstract: A CRC judgment section 103 performs a CRC check on decoded data every transmission unit, and if there is an error in the data, updates a flag held in a flag holding section 106 from 0 to 1; an increment/decrement value calculation section 105 calculates a reference SIR increment/decrement value according to the state (0 or 1) of the flag; a reference SIR update section 107 adds the reference SIR increment/decrement value to the current reference SIR value to find a new reference SIR value; a comparison section 109 compares the received signal SIR value measured by an SIR measurement section 108 with the updated reference SIR value, and a transmission power control bit generation section 110 generates a transmission power control bit according to the result of the comparison.Type: GrantFiled: November 29, 2000Date of Patent: May 24, 2005Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Hidenori Kayama, Masaki Hayashi, Kazuyuki Miya
-
Patent number: 6898414Abstract: At a first device (102 or 104), a message is received and processed. If the message is processed during a first time period, the first device transmits an acknowledgement message during a second time period; otherwise the first device transmits the acknowledgment message during a third time period. The second time period and the third time period are exclusive of each other.Type: GrantFiled: October 28, 2002Date of Patent: May 24, 2005Assignee: Motorola, Inc.Inventors: Randy L. Ekl, Ron Rotstein
-
Patent number: 6871045Abstract: The footprint of a first satellite is reconfigurable in orbit by ground control to switch on and off different transponders. Each transponder is connected to a corresponding downlink antenna feed, each of which transmits a downlink beam independent of the others. The satellite can be moved into different orbits or otherwise changed to service new geographic areas by using different combinations of the transponders. In one embodiment, the satellite includes an antenna and components for an uplink beam corresponding to each downlink beam. Various subsets of the downlink antenna feeds are mechanically linked to move in unison using gimbals, each subset using a corresponding gimbal and mechanical driver. The first satellite is sufficiently reconfigurable that it may serve as a back up satellite to a plurality of other satellites in a constellation of satellites.Type: GrantFiled: July 18, 2001Date of Patent: March 22, 2005Inventors: Philip A. Rubin, Jeffery B. Freedman, Ted M. Kaplan