Patents by Inventor Naoto Matoba

Naoto Matoba 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: 20220180491
    Abstract: An image processing apparatus includes an image synthesizer configured to correct input images based on first-correction data to generate corrected images, and to generate a synthesized image by stitching the corrected images together, a determiner configured to determine whether the corrected images are appropriately stitched together in the synthesized image by using a first-trained model learned whether images are appropriately stitched together, a second-correction-data generator configured to generate second-correction data by supplying the input images to a second-trained model learned relationships between correction data used to correct source images to generate corrected images appropriately stitched together and the source images, and an image updater configured to output the synthesized image when a determination result of the determiner is affirmative and output an updated synthesized image generated by causing the image synthesizer to update the synthesized image based on the second-correction da
    Type: Application
    Filed: May 15, 2020
    Publication date: June 9, 2022
    Applicant: NTT DOCOMO, INC.
    Inventors: Ryo SHINOHARA, Naoto MATOBA
  • Patent number: 8379577
    Abstract: A wireless resource assigning apparatus for assigning wireless resources to transmission data of a plurality of users is disclosed. The wireless resource assigning apparatus includes a scheduling part configured to start scheduling for all users from a first wireless resource among a plurality of wireless resources prioritized according to a predetermined criterion, and repeat scheduling up to the last wireless resource for users except for users to whom any wireless resource has been assigned.
    Type: Grant
    Filed: February 24, 2006
    Date of Patent: February 19, 2013
    Assignee: NTT DoCoMo, Inc.
    Inventors: Masashige Shirakabe, Naoto Matoba, Takatoshi Sugiyama, Hitoshi Yoshino, Tatsuro Masamura
  • Patent number: 8135356
    Abstract: To provide a radio communication control apparatus and a radio communication control method capable of controlling simultaneous transmission and reception so as not to degrade system throughput. A simultaneous transmission and reception controller 106 determines whether the simultaneous transmission and reception using the same frequency are possible, based on radio spectrum environment information of an opposite party of communication and radio spectrum environment information of a self-apparatus. When the simultaneous transmission and reception using the same frequency are determined to be possible, a control signal transmission section 109 transmits instruction information, indicating that the simultaneous transmission and reception are possible, and a transmission parameter thereof, to the above communication terminal.
    Type: Grant
    Filed: June 28, 2011
    Date of Patent: March 13, 2012
    Assignee: NTT Docomo, Inc.
    Inventors: Masashige Shirakabe, Takahiro Asai, Naoto Matoba, Hitoshi Yoshino
  • Publication number: 20110255439
    Abstract: To provide a radio communication control apparatus and a radio communication control method capable of controlling simultaneous transmission and reception so as not to degrade system throughput. A simultaneous transmission and reception controller 106 determines whether the simultaneous transmission and reception using the same frequency are possible, based on radio spectrum environment information of an opposite party of communication and radio spectrum environment information of a self-apparatus. When the simultaneous transmission and reception using the same frequency are determined to be possible, a control signal transmission section 109 transmits instruction information, indicating that the simultaneous transmission and reception are possible, and a transmission parameter thereof, to the above communication terminal.
    Type: Application
    Filed: June 28, 2011
    Publication date: October 20, 2011
    Applicant: NTT DoCoMo, Inc.
    Inventors: Masashige Shirakabe, Takahiro Asai, Naoto Matoba, Hitoshi Yoshino
  • Patent number: 8041311
    Abstract: To provide a radio communication control apparatus and a radio communication control method capable of controlling simultaneous transmission and reception so as not to degrade system throughput. A simultaneous transmission and reception controller 106 determines whether the simultaneous transmission and reception using the same frequency are possible, based on radio spectrum environment information of an opposite party of communication and radio spectrum environment information of a self-apparatus. When the simultaneous transmission and reception using the same frequency are determined to be possible, a control signal transmission section 109 transmits instruction information, indicating that the simultaneous transmission and reception are possible, and a transmission parameter thereof, to the above communication terminal.
    Type: Grant
    Filed: September 7, 2007
    Date of Patent: October 18, 2011
    Assignee: NTT DoCoMo, Inc.
    Inventors: Masashige Shirakabe, Takahiro Asai, Naoto Matoba, Hitoshi Yoshino
  • Patent number: 7826850
    Abstract: A frequency band allocation device is disclosed. The frequency band allocation device comprises a frequency band selection unit (1161, 1162) for selecting usable frequency bands from a dedicated frequency band, a registered frequency band and an unlicensed frequency band; and a frequency band allocation unit (1163) for allocating a frequency band out of the selected usable frequency bands to an uplink and downlink, so as to satisfy user required QoS.
    Type: Grant
    Filed: September 22, 2005
    Date of Patent: November 2, 2010
    Assignee: NTT DoCoMo, Inc.
    Inventors: Naoto Matoba, Hitoshi Yoshino, Takatoshi Sugiyama
  • Patent number: 7689186
    Abstract: A frequency band allocation device is disclosed. The frequency band allocation device comprises a frequency band selection unit for selecting usable frequency bands from a dedicated frequency band, a registered frequency band and an unlicensed frequency band; and a frequency band allocation unit for allocating a frequency band out of the selected usable frequency bands to a user, so as to satisfy user required QoS and maximize system frequency utilization factor.
    Type: Grant
    Filed: September 22, 2005
    Date of Patent: March 30, 2010
    Assignee: NTT DoCoMo, Inc.
    Inventors: Naoto Matoba, Masashige Shirakabe, Takatoshi Sugiyama, Hitoshi Yoshino
  • Patent number: 7502341
    Abstract: A transmitter used in the multiband environment includes a frequency allocation unit (106) configured to select and allocate a frequency band that satisfies a user QoS from among multiple separate frequency bands currently available for the user, a parameter determination unit (111) configured to determine a transmission parameter required for signal transmission based on the allocated frequency band, and a multi-user scheduling control unit (110) configured to determine a transmission schedule for multiple users taking into account the frequency bands allocated to the multiple users.
    Type: Grant
    Filed: September 22, 2005
    Date of Patent: March 10, 2009
    Assignee: NTT DoCoMo, Inc.
    Inventors: Naoto Matoba, Masashige Shirakabe, Takatoshi Sugiyama, Hitoshi Yoshino
  • Publication number: 20080062896
    Abstract: To provide a radio communication control apparatus and a radio communication control method capable of controlling simultaneous transmission and reception so as not to degrade system throughput. A simultaneous transmission and reception controller 106 determines whether the simultaneous transmission and reception using the same frequency are possible, based on radio spectrum environment information of an opposite party of communication and radio spectrum environment information of a self-apparatus. When the simultaneous transmission and reception using the same frequency are determined to be possible, a control signal transmission section 109 transmits instruction information, indicating that the simultaneous transmission and reception are possible, and a transmission parameter thereof, to the above communication terminal.
    Type: Application
    Filed: September 7, 2007
    Publication date: March 13, 2008
    Applicant: NTT DoCoMo, Inc.
    Inventors: Masashige SHIRAKABE, Takahiro Asai, Naoto Matoba, Hitoshi Yoshino
  • Publication number: 20080008126
    Abstract: An object is to provide a wireless communication device and a wireless communication method enabling improvement of communication efficiency. A communication control portion of a mobile station determines, in a procedure prior to data communication with a base station, a time interval for performing data transmission/reception with the base station. In the time interval determined by the communication control portion, a digital baseband circuit 107 executes control so as to perform data transmission as well as data reception.
    Type: Application
    Filed: July 6, 2007
    Publication date: January 10, 2008
    Applicants: NTT DoCoMo, Inc., Tokyo Institute of Technology
    Inventors: Masashige SHIRAKABE, Takahiro Asai, Naoto Matoba, Hitoshi Yoshino, Satoshi Suyama, Kazuhiko Fukawa, Hiroshi Suzuki
  • Publication number: 20060203723
    Abstract: A wireless resource assigning apparatus for assigning wireless resources to transmission data of a plurality of users is disclosed. The wireless resource assigning apparatus includes a scheduling part configured to start scheduling for all users from a first wireless resource among a plurality of wireless resources prioritized according to a predetermined criterion, and repeat scheduling up to the last wireless resource for users except for users to whom any wireless resource has been assigned.
    Type: Application
    Filed: February 24, 2006
    Publication date: September 14, 2006
    Applicant: NTT DoCoMo, Inc.
    Inventors: Masashige Shirakabe, Naoto Matoba, Takatoshi Sugiyama, Hitoshi Yoshino, Tatsuro Masamura
  • Publication number: 20060160551
    Abstract: A frequency band allocation device is disclosed. The frequency band allocation device comprises an RF database (112) for storing frequency category information indicating a dedicated frequency band, a registered frequency band or unlicensed frequency band; a user information database (113) for storing user information; a frequency band selecting unit (1161, 1162) for selecting usable frequency bands based on the frequency category information and the user information; and a frequency band allocation unit (1163) for allocating a frequency band satisfying user required QoS out of the selected usable frequency bands.
    Type: Application
    Filed: September 22, 2005
    Publication date: July 20, 2006
    Applicant: NTT DoCoMo, Inc.
    Inventors: Naoto Matoba, Hitoshi Yoshino, Takatoshi Sugiyama
  • Publication number: 20060063533
    Abstract: A frequency band allocation device is disclosed. The frequency band allocation device comprises a frequency band selection unit (1161, 1162) for selecting usable frequency bands from a dedicated frequency band, a registered frequency band and an unlicensed frequency band; and a frequency band allocation unit (1163) for allocating a frequency band out of the selected usable frequency bands to an uplink and downlink, so as to satisfy user required QoS.
    Type: Application
    Filed: September 22, 2005
    Publication date: March 23, 2006
    Applicant: NTT DoCoMo, Inc.
    Inventors: Naoto Matoba, Hitoshi Yoshino, Takatoshi Sugiyama
  • Publication number: 20060063500
    Abstract: A frequency band allocation device is disclosed. The frequency band allocation device comprises a frequency band selection unit for selecting usable frequency bands from a dedicated frequency band, a registered frequency band and an unlicensed frequency band; and a frequency band allocation unit for allocating a frequency band out of the selected usable frequency bands to a user, so as to satisfy user required QoS and maximize system frequency utilization factor.
    Type: Application
    Filed: September 22, 2005
    Publication date: March 23, 2006
    Applicant: NTT DoCoMo, Inc.
    Inventors: Naoto Matoba, Masashige Shirakabe, Takatoshi Sugiyama, Hitoshi Yoshino
  • Publication number: 20060063543
    Abstract: A transmitter used in the multiband environment includes a frequency allocation unit (106) configured to select and allocate a frequency band that satisfies a user QoS from among multiple separate frequency bands currently available for the user, a parameter determination unit (111) configured to determine a transmission parameter required for signal transmission based on the allocated frequency band, and a multi-user scheduling control unit (110) configured to determine a transmission schedule for multiple users taking into account the frequency bands allocated to the multiple users.
    Type: Application
    Filed: September 22, 2005
    Publication date: March 23, 2006
    Applicant: NTT DoCoMo, Inc.
    Inventors: Naoto Matoba, Masashige Shirakabe, Takatoshi Sugiyama, Hitoshi Yoshino