Patents by Inventor Masatomo Ouchi

Masatomo Ouchi 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: 11323216
    Abstract: A communication apparatus transmits a frame including frequency band allocation information for communication based on Orthogonal Frequency Division Multiple Access (OFDMA), and determines whether to permit or prohibit Spatial Reuse Parameter (SRP) based communication in accordance with a communication partner apparatus of each of a plurality of terminal stations in a network managed by the communication apparatus. The communication apparatus, in a case where it is determined that the SRP based communication is to be prohibited, transmits the frame including information indicating that the SRP based communication is prohibited.
    Type: Grant
    Filed: February 4, 2020
    Date of Patent: May 3, 2022
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Masatomo Ouchi
  • Patent number: 11304135
    Abstract: A communication apparatus that includes a transceiver capable of communicating with the first another communication apparatus operable in accordance with information of a schedule for causing another communication apparatus to operate in a communicable state and the second another communication apparatus inoperable in accordance with the information on the schedule is provided, the information being contained in a first radio signal transmitted by the communication apparatus. The communication apparatus controls, by the schedule, the transceiver so as to transmit the second radio signal for limiting transmission of a radio signal by the second other communication apparatus in at least a part of a period in which the first other communication apparatus operates in a communicable state in a case where the first radio signal is transmitted.
    Type: Grant
    Filed: April 18, 2018
    Date of Patent: April 12, 2022
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Masatomo Ouchi
  • Publication number: 20220103315
    Abstract: A communication apparatus determines whether or not the communication apparatus and one or more other communication apparatuses capable of performing coordinated communication by coordinating with the communication apparatus to use a predetermined frequency band can obtain channel state information from one or more communication partner apparatuses that perform the coordinated communication, and selects a communication method for performing the coordinated communication from among a plurality of communication methods based on a result of the determination.
    Type: Application
    Filed: December 10, 2021
    Publication date: March 31, 2022
    Inventor: Masatomo Ouchi
  • Patent number: 11228406
    Abstract: A communication apparatus determines whether or not the communication apparatus and one or more other communication apparatuses capable of performing coordinated communication by coordinating with the communication apparatus to use a predetermined frequency band can obtain channel state information from one or more communication partner apparatuses that perform the coordinated communication, and selects a communication method for performing the coordinated communication from among a plurality of communication methods based on a result of the determination.
    Type: Grant
    Filed: April 2, 2020
    Date of Patent: January 18, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventor: Masatomo Ouchi
  • Publication number: 20210392502
    Abstract: A communication device, which forms a first Basic Service Set (BSS), decides, based on a negotiation with a first other communication device to transmit a radio frame to a second other communication device cooperatively with the first other communication device, whether to set a BSS color in the first BSS to a first BSS color corresponding to the first BSS or to a second BSS color corresponding to a second BSS formed by the first other communication device, and sets the BSS color in the first BSS based on the decision.
    Type: Application
    Filed: August 24, 2021
    Publication date: December 16, 2021
    Inventor: Masatomo Ouchi
  • Publication number: 20210392682
    Abstract: A communication device that forms a first Basic Service Set (BSS) communicates a radio frame including a preamble and a data field of a physical layer (PHY). The preamble includes an Extremely High Throughput (EHT) Signal Field (EHT-SIG-A). The EHT-SIG-A includes a subfield for setting a BSS color, and if the communication device and a first other communication device are to cooperatively transmit the radio frame to a second other communication device, a value of this subfield is set, without changing the BSS color used in a first BSS, based on the BSS color of a second BSS to which the second other communication device belongs.
    Type: Application
    Filed: August 25, 2021
    Publication date: December 16, 2021
    Inventor: Masatomo Ouchi
  • Patent number: 11191113
    Abstract: A communication device, which complies with an IEEE802.11 standard and performs communication by assigning an Association identifier (AID) to a partner device, determines the AID to be assigned to the partner device from a first range of AID values if the partner device is a first device compatible with a frame that is transmitted with a destination designated by a range of the AID, and determines the AID to be assigned to the partner device from a second range different from the first range if the partner device is a second device not compatible with the frame that is transmitted with the destination designated by the range of the AID.
    Type: Grant
    Filed: March 19, 2020
    Date of Patent: November 30, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventor: Masatomo Ouchi
  • Publication number: 20210360630
    Abstract: A communication apparatus complying with an IEEE802.11 series standard, determines, based on information received from another communication apparatus connected to the communication apparatus, whether UL MU (Uplink Multiuser) communication of the other communication apparatus is enabled or disabled, acquires, from the other communication apparatus by a method according to a result of the determination, a BQR (Bandwidth Query Report) representing a state of a communication resource usable by the other communication apparatus, and decides the communication resource used to communicate with the other communication apparatus based on the acquired BQR.
    Type: Application
    Filed: May 12, 2021
    Publication date: November 18, 2021
    Inventor: Masatomo Ouchi
  • Publication number: 20210243792
    Abstract: A communication apparatus for transmitting, to a plurality of terminals, a trigger frame for executing uplink transmission: obtains, from each of the plurality of terminals, ability information indicating a preparation time necessary to start transmission after a resource unit; selects terminals as destinations of one trigger frame from the plurality of terminals; and transmits the trigger frame for the selected terminals by adding a padding area to ensure the preparation times of the selected terminals. The communication apparatus selects the terminals from the plurality of terminals based on the pieces of ability information so that a total sum of the added padding area becomes small.
    Type: Application
    Filed: April 19, 2021
    Publication date: August 5, 2021
    Inventor: Masatomo Ouchi
  • Publication number: 20210218531
    Abstract: A communication apparatus operable to act as a master-AP in a multi-AP (access point) coordination configuration that supports an IEEE802.11 series standard, selects a sounding method which is a method for transmitting a sounding packet for receiving a CSI report as feedback from a terminal apparatus in accordance with a CSI (channel state information) calculation capability in the terminal apparatus that is connected to the communication apparatus.
    Type: Application
    Filed: December 24, 2020
    Publication date: July 15, 2021
    Inventor: Masatomo Ouchi
  • Publication number: 20200359326
    Abstract: A communication apparatus that operates as an access point in compliance with IEEE 802.11ba and communicates with a WUR (Wake-Up Radio) function for transiting a terminal from a power saving state to a normal state, comprises a collection unit that collects, from another access point, information related to a WUR of the other access point; and a notification unit that notifies the terminal of the information related to the WUR of the other access point collected by the collection unit.
    Type: Application
    Filed: May 4, 2020
    Publication date: November 12, 2020
    Inventor: Masatomo Ouchi
  • Publication number: 20200328857
    Abstract: A communication apparatus determines whether or not the communication apparatus and one or more other communication apparatuses capable of performing coordinated communication by coordinating with the communication apparatus to use a predetermined frequency band can obtain channel state information from one or more communication partner apparatuses that perform the coordinated communication, and selects a communication method for performing the coordinated communication from among a plurality of communication methods based on a result of the determination.
    Type: Application
    Filed: April 2, 2020
    Publication date: October 15, 2020
    Inventor: Masatomo Ouchi
  • Publication number: 20200288398
    Abstract: A communication apparatus receives a radio frame complying with an IEEE802.11 series standard, acquires information of a WUR (Wake-up Radio) Discovery element included in the received frame, and decides, based on the information of the WUR Discovery element, a WUR channel used to wait for a WUR Discovery frame.
    Type: Application
    Filed: February 25, 2020
    Publication date: September 10, 2020
    Inventor: Masatomo Ouchi
  • Publication number: 20200274659
    Abstract: A communication apparatus transmits a frame including frequency band allocation information for communication based on Orthogonal Frequency Division Multiple Access (OFDMA), and determines whether to permit or prohibit Spatial Reuse Parameter (SRP) based communication in accordance with a communication partner apparatus of each of a plurality of terminal stations in a network managed by the communication apparatus. The communication apparatus, in a case where it is determined that the SRP based communication is to be prohibited, transmits the frame including information indicating that the SRP based communication is prohibited.
    Type: Application
    Filed: February 4, 2020
    Publication date: August 27, 2020
    Inventor: Masatomo Ouchi
  • Publication number: 20200221516
    Abstract: A communication device, which complies with an IEEE802.11 standard and performs communication by assigning an Association identifier (AID) to a partner device, determines the AID to be assigned to the partner device from a first range of AID values if the partner device is a first device compatible with a frame that is transmitted with a destination designated by a range of the AID, and determines the AID to be assigned to the partner device from a second range different from the first range if the partner device is a second device not compatible with the frame that is transmitted with the destination designated by the range of the AID.
    Type: Application
    Filed: March 19, 2020
    Publication date: July 9, 2020
    Inventor: Masatomo Ouchi
  • Publication number: 20180310245
    Abstract: A communication apparatus that includes a transceiver capable of communicating with the first another communication apparatus operable in accordance with information of a schedule for causing another communication apparatus to operate in a communicable state and the second another communication apparatus inoperable in accordance with the information on the schedule is provided, the information being contained in a first radio signal transmitted by the communication apparatus. The communication apparatus controls, by the schedule, the transceiver so as to transmit the second radio signal for limiting transmission of a radio signal by the second other communication apparatus in at least a part of a period in which the first other communication apparatus operates in a communicable state in a case where the first radio signal is transmitted.
    Type: Application
    Filed: April 18, 2018
    Publication date: October 25, 2018
    Inventor: Masatomo Ouchi
  • Publication number: 20170273129
    Abstract: In order to solve at least one of the problems that occur if connection cannot be established with some of a plurality of other communication apparatuses, a content transmission apparatus accepts an instruction for content playback using a plurality of other communication apparatuses; determines that communication connection cannot be established with some other communication apparatuses of the plurality of the other communication apparatuses; and performs a predetermined notification to a user in response to determination that the communication connection cannot be established with the some other communication apparatuses of the plurality of the other communication apparatuses.
    Type: Application
    Filed: March 8, 2017
    Publication date: September 21, 2017
    Inventor: Masatomo Ouchi
  • Patent number: 9408017
    Abstract: A communication apparatus having a first communication function of periodically transmitting a predetermined signal and communicating with another apparatus and a second communication function of communicating with another apparatus by producing an electric field or magnetic field determines whether a partner apparatus exists in a communicable range of the second communication function, and controls the first communication function to stop transmission of the predetermined signal in the case where it is determined that the partner apparatus exists in the communicable range.
    Type: Grant
    Filed: June 16, 2014
    Date of Patent: August 2, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Masatomo Ouchi
  • Publication number: 20140378059
    Abstract: A communication apparatus having a first communication function of periodically transmitting a predetermined signal and communicating with another apparatus and a second communication function of communicating with another apparatus by producing an electric field or magnetic field determines whether a partner apparatus exists in a communicable range of the second communication function, and controls the first communication function to stop transmission of the predetermined signal in the case where it is determined that the partner apparatus exists in the communicable range.
    Type: Application
    Filed: June 16, 2014
    Publication date: December 25, 2014
    Inventor: Masatomo Ouchi
  • Patent number: 8495216
    Abstract: A communication control system constituted by a communication terminal, a management apparatus that manages the communication terminal, and a wireless communication network in which the communication terminal and the management apparatus are communicable with each other.
    Type: Grant
    Filed: January 12, 2010
    Date of Patent: July 23, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventor: Masatomo Ouchi