Patents by Inventor Atsushi Yoshizawa

Atsushi Yoshizawa 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).

  • Publication number: 20140341175
    Abstract: A method of communicating data in a wireless telecommunications system between plural base stations and plural terminal devices using plural Orthogonal Frequency Division Multiplex, OFDM, sub-carriers spanning a first frequency bandwidth. The method includes: communicating data between a first base station and a first terminal device using a first OFDM sub-carrier group distributed across the first frequency bandwidth, communicating data between a second base station, geographically separated from the first base station, and a second terminal device using a second OFDM sub-carrier group distributed across a second frequency bandwidth, the second frequency bandwidth being smaller than and within the first frequency bandwidth; and communicating control-plane data between the first base station and the first terminal device using a combination of the first and second groups of the OFDM sub-carriers.
    Type: Application
    Filed: August 6, 2012
    Publication date: November 20, 2014
    Applicant: SCA IPLA HOLDINGS INC
    Inventors: Martin Beale, Peter Darwood, Darren McNamara, Yuichi Morioka, Atsushi Yoshizawa
  • Publication number: 20140314037
    Abstract: Provided is a communication terminal including a timing detection unit that detects arrival of timing according to a configured cycle, a condition determination unit that determines whether or not a shared condition shared with a base station is satisfied, and a communication controller that controls reception of paging when the timing detection unit detects the arrival of timing and the condition determination unit determines that the shared condition is satisfied.
    Type: Application
    Filed: November 8, 2012
    Publication date: October 23, 2014
    Inventor: Atsushi Yoshizawa
  • Patent number: 8837114
    Abstract: A solid electrolytic capacitor is impregnated with a conductive polymer dispersion solution comprising sorbitol. In the capacitor, the hydroxyl group of sorbitol acts as the oxygen source necessary for the anodic oxidation of anodic oxide film when voltage is applied to the solid electrolytic capacitor. Consequently, the oxide film is repaired and withstand voltage property is improved, which is thought to be due to the anodic oxidation that repairs the damage on the oxide film. Superior electric capacitance can further be attained by specifying the sorbitol content in the dispersion solution to be at 60-90 wt %.
    Type: Grant
    Filed: March 29, 2011
    Date of Patent: September 16, 2014
    Inventors: Nozomu Kamiyama, Kenji Machida, Atsushi Yoshizawa, Sekihiro Takeda, Kenji Tamamitsu
  • Publication number: 20140194133
    Abstract: A method of communicating data in a wireless telecommunications system between plural base stations and plural terminal devices using plural Orthogonal Frequency Division Multiplex, OFDM, sub-carriers spanning a first frequency bandwidth. The method includes: communicating data between a first base station and a first terminal device using a first group of the OFDM sub-carriers distributed across the first frequency bandwidth, communicating data between a second base station, geographically separated from the first base station, and a second terminal device using a second group of the OFDM sub-carriers distributed across a second frequency bandwidth, and communicating control-plane data between the first base station and the first terminal device using a combination of the first and second groups of the OFDM sub-carriers.
    Type: Application
    Filed: August 6, 2012
    Publication date: July 10, 2014
    Applicant: SCA IPLA HOLDINGS INC.
    Inventors: Peter Darwood, Martin Beale, Darren Mcnamara, Atsushi Yoshizawa, Yuichi Morioka
  • Publication number: 20140140292
    Abstract: There is provided a communication apparatus including a resource selection unit that selects a communication resource to transmit a preamble in random access. The resource selection unit selects the communication resource corresponding to a value of transmission data.
    Type: Application
    Filed: June 22, 2012
    Publication date: May 22, 2014
    Applicant: Sony Corporation
    Inventor: Atsushi Yoshizawa
  • Publication number: 20140133424
    Abstract: There is provided a communication apparatus including a signature selection unit that selects one signature from a plurality of signatures, and a preamble generation unit that generates a signature in random access using the preamble selected by the signature selection unit. The signature selection unit selects the signature corresponding to a value of transmission data.
    Type: Application
    Filed: June 25, 2012
    Publication date: May 15, 2014
    Applicant: Sony Corporation
    Inventor: Atsushi Yoshizawa
  • Publication number: 20140112279
    Abstract: The present technique relates to a communication terminal device and method, a base station device, and a communication system that enable efficient communications. A first communication unit that performs a first communication with a first other device transmits information indicating the margin in which the first communication is not disturbed by a second communication with a second other device, to the first other device. The communication terminal device and the communication system of the present technique can be used to perform efficient communications between a personal computer and a communication system utilizing the personal computer, for example.
    Type: Application
    Filed: June 8, 2012
    Publication date: April 24, 2014
    Applicant: SONY CORPORATION
    Inventor: Atsushi Yoshizawa
  • Patent number: 8633617
    Abstract: A filter circuit according to the present invention includes a voltage-current conversion unit that converts a voltage signal input to an input end to a current signal, a capacitor group that is made up of a plurality of capacitors, where the current signal output from the voltage-current conversion unit is sequentially input to each capacitor at every cycle, a first switch that connects a set of capacitors to which the current signal is input with each other and adds charges accumulated in the set of capacitors together, and a second switch that connects at least one capacitor of the set of capacitors to an output end after charges are added by the first switch.
    Type: Grant
    Filed: April 9, 2010
    Date of Patent: January 21, 2014
    Assignee: Sony Corporation
    Inventors: Sachio Iida, Atsushi Yoshizawa
  • Publication number: 20140016525
    Abstract: There is provided a radio communication apparatus including a duplexer including a first terminal for inputting and outputting a signal in a first frequency band, a second terminal for inputting and outputting a signal in a second frequency band, and a third terminal connected to an antenna, a reception system circuit which processes a reception signal, a transmission system circuit which generates a transmission signal, and a switch which, in a first mode, connects one of the first terminal and the second terminal to the reception system circuit and connects the other one of the first terminal and the second terminal to the transmission system circuit and which, in a second mode, connects the one of the first terminal and the second terminal to the reception system circuit and the transmission system circuit alternately.
    Type: Application
    Filed: July 2, 2013
    Publication date: January 16, 2014
    Applicant: Sony Corporation
    Inventor: Atsushi Yoshizawa
  • Publication number: 20130155994
    Abstract: There is provided a base station including a receiving section that receives information on a plurality of wireless terminals from a representative wireless terminal representing the plurality of wireless terminals, a control information setting section that sets control information for controlling random access by the plurality of wireless terminals based on the information on the plurality of wireless terminals received by the receiving section, and a transmitting section that transmits the control information set by the control information setting section to the plurality of wireless terminals.
    Type: Application
    Filed: August 11, 2011
    Publication date: June 20, 2013
    Applicant: Sony Corporation
    Inventors: Atsushi Yoshizawa, Hiroaki Takano
  • Publication number: 20130155864
    Abstract: There is provided a wireless terminal including a storage section that stores information on a plurality of wireless terminals forming a group in which the wireless terminal operates as a representative wireless terminal, a communication control section that controls random access to a base station before another wireless terminal in the group, and a transmitting section that transmits the information on the plurality of wireless terminals stored in the storage section to the base station.
    Type: Application
    Filed: August 18, 2011
    Publication date: June 20, 2013
    Applicant: SONY CORPORATION
    Inventors: Atsushi Yoshizawa, Hiroaki Takano
  • Publication number: 20130130628
    Abstract: Provided is a wireless communication device including a receiving unit for receiving information based on measurement of radio conditions transmitted from a base station in association with identification information; and a control unit for controlling communication by using the information received by the receiving unit when the wireless communication device corresponds to the identification information received by the receiving unit.
    Type: Application
    Filed: May 17, 2011
    Publication date: May 23, 2013
    Applicant: SONY CORPORATON
    Inventors: Hiroaki Takano, Kazuyuki Sakoda, Atsushi Yoshizawa
  • Publication number: 20130070393
    Abstract: A solid electrolytic capacitor is impregnated with a conductive polymer dispersion solution comprising sorbitol. In the capacitor, the hydroxyl group of sorbitol acts as the oxygen source necessary for the anodic oxidation of anodic oxide film when voltage is applied to the solid electrolytic capacitor. Consequently, the oxide film is repaired and withstand voltage property is improved, which is thought to be due to the anodic oxidation that repairs the damage on the oxide film. Superior electric capacitance can further be attained by specifying the sorbitol content in the dispersion solution to be at 60-90 wt %.
    Type: Application
    Filed: March 29, 2011
    Publication date: March 21, 2013
    Inventors: Nozomu Kamiyama, Kenji Machida, Atsushi Yoshizawa, Sekihiro Takeda, Kenji Tamamitsu
  • Patent number: 8390370
    Abstract: There is provided a filter circuit that includes: a flying capacitor which maintains polarity when switching from an input terminal to an output terminal, and the polarity of which is reversed when switching from the output terminal to the input terminal; a first capacitor that is provided in parallel with the flying capacitor, at the input terminal of the flying capacitor; and a second capacitor that is provided in parallel with the flying capacitor, at the output terminal of the flying capacitor. The flying capacitor is switched from the input terminal to the output terminal with a delay of a predetermined time after the switching from the output terminal to the input terminal, and the flying capacitor is switched from the output terminal to the input terminal with a delay of a predetermined time after the switching from the input terminal to the output terminal.
    Type: Grant
    Filed: November 9, 2009
    Date of Patent: March 5, 2013
    Assignee: Sony Corporation
    Inventors: Sachio Iida, Atsushi Yoshizawa
  • Publication number: 20130053075
    Abstract: There is provided a wireless communication device including a receiving unit for receiving a wireless signal from a base station; a transmitting unit for transmitting an initial signal for connecting to the base station; a random number generator for generating a random number; and a controller for, after a synchronization process based on the wireless signal received from the base station, controlling a timing when the transmitting unit transmits the initial signal in accordance with a delay time corresponding to the random number generated by the random number generator.
    Type: Application
    Filed: June 13, 2011
    Publication date: February 28, 2013
    Applicant: Sony Corporation
    Inventors: Atsushi Yoshizawa, Hiroaki Takano
  • Publication number: 20130034001
    Abstract: Provided is a terminal apparatus including a first communication unit that performs communication according to a first wireless communication scheme using frequency division duplex; a second communication unit that performs communication according to a second wireless communication scheme different from the first wireless communication scheme; a detecting unit that detects deterioration of reception quality of the first communication unit due to generation of the communication by the first communication unit and the communication by the second communication unit at the same timing; and a reporting unit that reports the deterioration of the reception quality to a communication control apparatus scheduling the communication by the first communication unit, when the deterioration of the reception quality is detected by the detecting unit.
    Type: Application
    Filed: July 17, 2012
    Publication date: February 7, 2013
    Applicant: Sony Corporation
    Inventors: Nishiki Mizusawa, Atsushi Yoshizawa
  • Patent number: 8309963
    Abstract: The invention is an organic luminescence transistor device including: a substrate; an assistance electrode layer provided on a side of an upper surface of the substrate; an insulation film provided on a side of an upper surface of the assistance electrode layer; a first electrode provided locally on a side of an upper surface of the insulation film, the first electrode covering an area of a predetermined size; an electric-charge-injection inhibiting layer provided on an upper surface of the first electrode, the electric-charge-injection inhibiting layer having a shape larger than that of the first electrode in a plan view; an electric-charge injection layer provided on the side of an upper surface of the insulation film at an area not provided with the first electrode or the electric-charge-injection inhibiting layer and on an upper surface of the electric-charge-injection inhibiting layer; a luminescent layer provided on an upper surface of the electric-charge injection layer; and a second electrode layer pr
    Type: Grant
    Filed: February 26, 2010
    Date of Patent: November 13, 2012
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Katsunari Obata, Shinichi Handa, Takuya Hata, Kenji Nakamura, Atsushi Yoshizawa, Hiroyuki Endo
  • Patent number: 8279023
    Abstract: There is provided a filter circuit that includes: a flying capacitor which maintains polarity when switching from an input terminal to an output terminal, and the polarity of which is reversed when switching from the output terminal to the input terminal; a first capacitor that is provided in parallel to the flying capacitor, at the input terminal of the flying capacitor; and a second capacitor that is provided in parallel to the flying capacitor, at the output terminal of the flying capacitor. The flying capacitor includes a variable capacity element such that capacity becomes smaller when switching from the input terminal to the output terminal and capacity becomes larger when switching from the output terminal to the input terminal.
    Type: Grant
    Filed: October 29, 2009
    Date of Patent: October 2, 2012
    Assignee: Sony Corporation
    Inventors: Sachio Iida, Atsushi Yoshizawa
  • Patent number: 8158970
    Abstract: The invention is an organic luminescence transistor device including: a substrate; an assistance electrode layer provided on a side of an upper surface of the substrate; an insulation film provided on a side of an upper surface of the assistance electrode layer; a first electrode provided locally on a side of an upper surface of the insulation film, the first electrode covering an area of a predetermined size; an electric-charge-injection inhibiting layer provided on an upper surface of the first electrode, the electric-charge-injection inhibiting layer having a shape larger than that of the first electrode in a plan view; an electric-charge injection layer provided on the side of an upper surface of the insulation film at an area not provided with the first electrode or the electric-charge-injection inhibiting layer and on an upper surface of the electric-charge-injection inhibiting layer; a luminescent layer provided on an upper surface of the electric-charge injection layer; and a second electrode layer pr
    Type: Grant
    Filed: December 1, 2006
    Date of Patent: April 17, 2012
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Katsunari Obata, Shinichi Handa, Takuya Hata, Kenji Nakamura, Atsushi Yoshizawa, Hiroyuki Endo
  • Patent number: 8089310
    Abstract: A charge domain filter circuit includes a first signal output portion, a second signal output portion, and an adder portion. The first signal output portion outputs a first signal that is sampled at a specified time interval. The second signal output portion outputs a second signal that is sampled at the same time interval as the first signal and at a different time. The adder portion adds the first signal and the second signal together and outputs the result. The second signal output portion is capable of selecting the time to sample the second signal from among a plurality of times.
    Type: Grant
    Filed: November 18, 2008
    Date of Patent: January 3, 2012
    Assignee: Sony Corporation
    Inventors: Sachio Iida, Atsushi Yoshizawa