Patents by Inventor Yasushi Toda

Yasushi Toda has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9820177
    Abstract: A portable information terminal provided with a group terminal connection status management section which manages the connection statuses of a plurality of portable information terminals belonging to the same group connected by a tethering function; a host terminal order determination section which determines selection order of a portable information terminal to serve as a host terminal from among the portable information terminals belonging to the same group including its own terminal, based at least on reception quality from the base station, remaining battery capacity, and either a contracted allowable data transmission speed or a maximum data transmission speed notified from a network; and a control section which controls whether to operate as the host terminal or to communicate with the base station via the host terminal, based on the determined selection order.
    Type: Grant
    Filed: January 21, 2014
    Date of Patent: November 14, 2017
    Assignee: NEC CORPORATION
    Inventor: Yasushi Toda
  • Patent number: 9781625
    Abstract: A portable information terminal provided with a group terminal connection status management section which manages the connection statuses of a plurality of portable information terminals belonging to the same group connected by a tethering function; a host terminal order determination section which determines selection order of a portable information terminal to serve as a host terminal from among the portable information terminals belonging to the same group including its own terminal, based at least on reception quality from the base station, remaining battery capacity, and either a contracted allowable data transmission speed or a maximum data transmission speed notified from a network; and a control section which controls whether to operate as the host terminal or to communicate with the base station via the host terminal, based on the determined selection order.
    Type: Grant
    Filed: January 21, 2014
    Date of Patent: October 3, 2017
    Assignee: NEC CORPORATION
    Inventor: Yasushi Toda
  • Publication number: 20150358851
    Abstract: A portable information terminal provided with a group terminal connection status management section which manages the connection statuses of a plurality of portable information terminals belonging to the same group connected by a tethering function; a host terminal order determination section which determines selection order of a portable information terminal to serve as a host terminal from among the portable information terminals belonging to the same group including its own terminal, based at least on reception quality from the base station, remaining battery capacity, and either a contracted allowable data transmission speed or a maximum data transmission speed notified from a network; and a control section which controls whether to operate as the host terminal or to communicate with the base station via the host terminal, based on the determined selection order.
    Type: Application
    Filed: January 21, 2014
    Publication date: December 10, 2015
    Inventor: Yasushi TODA
  • Patent number: 8782141
    Abstract: In a communication system using a standby screen, a portable communication terminal accesses a communication server at a predetermined time interval, uses RSS to receive and store new messages in a cyber sub-community in which the portable communication terminal participates, and sequentially displays tag buttons on the standby screen to display new-message arrivals with message-issuing member names and titles displayed on the buttons.
    Type: Grant
    Filed: November 15, 2006
    Date of Patent: July 15, 2014
    Assignee: NEC Corporation
    Inventors: Yohei Umezawa, Yasushi Toda
  • Publication number: 20070124403
    Abstract: In a communication system using a standby screen, a portable communication terminal accesses a communication server at a predetermined time interval, uses RSS to receive and store new messages in a cyber sub-community in which the portable communication terminal participates, and sequentially displays tag buttons on the standby screen to display new-message arrivals with message-issuing member names and titles displayed on the buttons.
    Type: Application
    Filed: November 15, 2006
    Publication date: May 31, 2007
    Inventors: Yohei Umezawa, Yasushi Toda
  • Publication number: 20060154683
    Abstract: A communication method and a communication system which enable a user to swiftly send a standard voice message or sound to one or more other communication perties during a conversation, and also simultaneously send a voice message to a plurality of other communication parties. A user can swiftly transmit a standard voice message or sound previously stored in his/her communication terminal even during a conversation. Thus, the other communication party who has the conversation with the user can listen to the message or sound instead of the user's voice. Further, when there are a plurality of other communication parties, a voice message can be simultaneously sent thereto.
    Type: Application
    Filed: January 6, 2006
    Publication date: July 13, 2006
    Inventors: Yohei Umezawa, Yasushi Toda
  • Publication number: 20040083300
    Abstract: In a communication system including a data terminal having a communication function adopting a code division multiplex access (CDMA) system, a coding and a decoding means in the data terminal store parameters necessary for a coding and a decoding process in the means, respectively, are stored in the process parameter buffer according to the utilization frequency data of a designated transport format, and for the utilization frequency parameters the pertinent stored parameter data are read out and utilized without performing recalculation, thus reducing power consumption necessary for calculation.
    Type: Application
    Filed: October 20, 2003
    Publication date: April 29, 2004
    Applicant: NEC Corporation
    Inventor: Yasushi Toda
  • Publication number: 20040012531
    Abstract: A folding cellular phone includes an antenna to which a depression switch and a rotation switch are connected. A user can allow the cellular phone in a folded state to execute a predetermined operation by operating a tip portion of the antenna. For example, it is made possible to display a menu on a second display unit or to issue an alarm signal by pressing and rotating operations for the tip portion.
    Type: Application
    Filed: July 11, 2003
    Publication date: January 22, 2004
    Applicant: NEC CORPORATION
    Inventor: Yasushi Toda
  • Patent number: 6607112
    Abstract: There is provided a wire bonding apparatus operated steadily at a high speed without excitation of vibrations of an XY stage 102 and a capillary 104, which are movable parts. The wire bonding apparatus is configured so as to have a composite target path generating section 208 for generating a target path 109, in which the deceleration part of a go path and the acceleration part of a return path are composed to one continuous path, for a path part of reciprocating movement of said target path indicating a motion process of either one or both of the XY stage and capillary.
    Type: Grant
    Filed: August 2, 2001
    Date of Patent: August 19, 2003
    Assignee: NEC Corporation
    Inventor: Yasushi Toda
  • Patent number: 6377522
    Abstract: A defined level comparator compares a track error signal with each of a predetermined upper limit level and a predetermined lower limit level so as to generate two comparison signals. A logic unit ANDs two comparison signals so as to obtain a track pull-in enabling signal. A header component removal arithmetic unit removes a header component from the track pull-in enabling signal in accordance with a header area signal. A track polarity inverter outputs a land/groove detection signal in which a polarity of a signal level is inverted every timing at which a signal level of the track pull-in enabling signal is in a track pull-in enabling state. A track polarity correcting and determining unit compares a polarity signal held by a sampling holder with the land/groove detection signal in the header area.
    Type: Grant
    Filed: December 17, 1999
    Date of Patent: April 23, 2002
    Assignee: NEC Corporation
    Inventor: Yasushi Toda
  • Publication number: 20020014512
    Abstract: There is provided a wire bonding apparatus operated steadily at a high speed without excitation of vibrations of an XY stage 102 and a capillary 104, which are movable parts. The wire bonding apparatus is configured so as to have a composite target path generating section 208 for generating a target path 109, in which the deceleration part of a go path and the acceleration part of a return path are composed to one continuous path, for a path part of reciprocating movement of said target path indicating a motion process of either one or both of the XY stage and capillary. Therefore, the period of a composite target acceleration path can be set long while the required time until the end of path is shortened, and the wire bonding apparatus can be operated steadily at a high speed without excitation of vibrations of the XY stage and capillary, which are movable parts.
    Type: Application
    Filed: August 2, 2001
    Publication date: February 7, 2002
    Applicant: NEC CORPORATION
    Inventor: Yasushi Toda
  • Publication number: 20020001262
    Abstract: A tile actuator of an object lens in an optical disk device is controlled by a tilt controller that includes a filter for stopping a signal with first resonance frequency of the tilt actuator, a filter for amplifying a signal with a frequency less than the rotational frequency of the disk, and a filter for restricting current for driving the tilt actuator.
    Type: Application
    Filed: June 28, 2001
    Publication date: January 3, 2002
    Inventors: Naotoshi Iwazawa, Yasushi Toda
  • Patent number: 6124845
    Abstract: A cursor control device is provided which has good operability and can reflect clearly an operator's natural motion in accordance with a qualified value (conversion coefficient). The cursor control device is constituted of an operation plate 5 with an operation surface 7, an operation pressure detecting detector with a pressure-sensitive sensor 3 arranged on the back surface of the operation plate 5 to detect a touch pressure by a control member, and an arithmetic circuit. The arithmetic circuit performs an arithmetic operation of both the coordinate position and the moving rate of the control member using a detection signal from the operation pressure detection detector, and the movement of a cursor based on a first qualified value and a second qualified value. The first qualified value is determined according to the movement and the moving rate of a coordinate position. The second qualified value is determined according to the touch pressure of the control member.
    Type: Grant
    Filed: January 27, 1997
    Date of Patent: September 26, 2000
    Assignee: Alps Electric Co., Ltd.
    Inventors: Yasushi Toda, Hideki Suzuki
  • Patent number: 5673066
    Abstract: A cursor control device is provided which has good operability and can reflect clearly an operator's natural motion in accordance with a qualified value (conversion coefficient). The cursor control device is constituted of an operation plate (5) with an operation surface (7), an operation pressure detector with a pressure-sensitive sensor (3) arranged on the back surface of the operation plate (5) to detect a touch pressure by a control member, and an arithmetic circuit. The arithmetic circuit performs an arithmetic operation of both the coordinate position and the moving rate of the control member using a detection signal from the operation pressure detector, and the movement of a cursor based on a first qualified value and a second qualified value. The first qualified value is determined according to the movement and the moving rate of a coordinate position. The second qualified value is determined according to the touch pressure of the control member.
    Type: Grant
    Filed: October 5, 1994
    Date of Patent: September 30, 1997
    Assignee: Alps Electric Co., Ltd.
    Inventors: Yasushi Toda, Hideki Suzuki
  • Patent number: 5448570
    Abstract: A communication system that performs time-division multiple access mobile communication using radio in a service area in which are disposed a plurality of base stations connected to a central station through a communication network. The central station selects and designates a master base station and a selected base station close to the master base station. The central station instructs the selected base station to synchronize a radio signal transmitted by the selected base station with a radio signal transmitted by the master base station. The central station further selects at least one additional base station close to the selected base station. The central station instructs the at least one additional base station to synchronize a radio signal transmitted by the additional base station with a radio signal transmitted by the selected base station. The process is repeated until all of the base stations are transmitting a synchronized radio wave.
    Type: Grant
    Filed: March 16, 1994
    Date of Patent: September 5, 1995
    Assignee: Kyocera Corporation
    Inventors: Yasushi Toda, Tetsuya Yuda
  • Patent number: 4942489
    Abstract: A thin-film magnetic head which can simultaneously trace two tracks is disclosed. This head comprises: a pair of magnetic gap portions; and a pair of magnetic thin-film layers each of which includes a magnetic pole portion in contact with the magnetic gap portion. A distance between these layers increases as they go away from the magnetic pole portions. Each of the layers includes an expanded portion having a cross sectional area in the passing direction of the magnetic fluxes which is larger than a cross sectional area in the passing direction of the magnetic fluxes at the magnetic pole portion.
    Type: Grant
    Filed: January 5, 1988
    Date of Patent: July 17, 1990
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ko Yoneda, Yasushi Toda, Tooru Matsuda, Kenji Makino, Kenji Nagata
  • Patent number: 4649449
    Abstract: A magnetic head for perpendicularly magnetizing a magnetic recording medium having a first magnetic pole to reverse the magnetization in the magnetic recording medium which has been magnetized beforehand in a certain direction, and a second magnetic pole to control reversal of the magnetization in the recording medium effected by the first pole.
    Type: Grant
    Filed: February 25, 1985
    Date of Patent: March 10, 1987
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takeshi Sawada, Yasushi Toda, Hirokazu Goto