Patents by Inventor Hirohiko Inohiza

Hirohiko Inohiza 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: 11923986
    Abstract: A communication device transmits to a communication partner device or receives from the partner device a radio frame conforming to an IEEE 802.11 standard series, wherein a capability of HARQ (Hybrid Automatic Repeat reQuest) that a device that transmitted the radio frame has is indicated in a MAC (media access control) frame of the radio frame.
    Type: Grant
    Filed: October 7, 2021
    Date of Patent: March 5, 2024
    Assignee: Canon Kabushiki Kaisha
    Inventor: Hirohiko Inohiza
  • Patent number: 11917676
    Abstract: A communication apparatus transmits a request signal to an apparatus operating in a second operation mode among operation modes including a first operation mode using a first wireless communication unit and the second operation mode using a second wireless communication unit operable with lower power consumption than the first wireless communication unit. The request signal for causes the apparatus to transition from the second operation mode to the first operation mode. The communication apparatus determines whether transmitting the request signal is prioritized, and decides a parameter in the request signal that is used to avoid an access conflict in a wireless communication band, based on a result of the decision.
    Type: Grant
    Filed: May 5, 2021
    Date of Patent: February 27, 2024
    Assignee: Canon Kabushiki Kaisha
    Inventor: Hirohiko Inohiza
  • Publication number: 20230388117
    Abstract: A communication apparatus for executing wireless communication complying with an IEEE 802.11 standard series by establishing a plurality of links with another apparatus updates an encryption key individually set for each of the plurality of links by executing predetermined processing including transmission of a predetermined message to the other apparatus. In the predetermined processing, the communication apparatus transmits, to the other apparatus, the predetermined message including information concerning the encryption keys for at least two links among the plurality of links.
    Type: Application
    Filed: August 14, 2023
    Publication date: November 30, 2023
    Inventor: HIROHIKO INOHIZA
  • Publication number: 20230262789
    Abstract: In a case where a connection between a communication apparatus and other one communication apparatus is established via a first frequency channel and a second frequency channel, a beacon frame transmitted using the first frequency channel includes information for communication using the second frequency channel, and a FILS discovery frame or an unsolicited probe response frame transmitted using the first frequency channel does not include the information.
    Type: Application
    Filed: April 24, 2023
    Publication date: August 17, 2023
    Inventor: HIROHIKO INOHIZA
  • Publication number: 20230209632
    Abstract: An AP 102 performs control such that in a case where a communication is being performed using a plurality of established different links via a plurality of different channels, a FILS discovery frame and/or an unsolicited probe response frame is not transmitted at an interval of 20 or smaller TUs (Time Units), while in a case where a communication is not being performed using the plurality of links, a FILS discovery frame and/or an unsolicited probe response frame is transmitted at an interval of 20 or smaller TUs.
    Type: Application
    Filed: February 27, 2023
    Publication date: June 29, 2023
    Inventor: HIROHIKO INOHIZA
  • Publication number: 20230199883
    Abstract: A communication apparatus for executing wireless communication complying with an IEE802.11 standard series establishes, with another communication apparatus, a plurality of links using a plurality of channels, wherein a channel used for establishing one of the plurality of channels is different from a channel used for establishing another one of the plurality of channels, performs multi-link communication using the plurality of links, receives a first signal from the other communication apparatus, and controls, in order for the other communication apparatus to be connected using a first channel, to transmit a second signal using a second channel different from the first channel.
    Type: Application
    Filed: February 10, 2023
    Publication date: June 22, 2023
    Inventor: Hirohiko Inohiza
  • Publication number: 20230156755
    Abstract: An access point (AP) receives, from another communication apparatus, a probe request frame from a station (STA), and transmits, to the STA, a probe response frame including capability information about multi-link communication corresponding to a frequency band or a frequency channel decided based on information about a frequency band or a frequency channel included in the received probe request frame.
    Type: Application
    Filed: January 17, 2023
    Publication date: May 18, 2023
    Inventor: HIROHIKO INOHIZA
  • Publication number: 20230108880
    Abstract: A communication apparatus capable of performing multilink communication conforming to the IEEE802.11 standard series includes a connection unit configured to establish a first link and a second link via a frequency channel, and a setting unit configured to set, in a case where a communication apparatus as a connection partner in the first link established by the connection unit is same as a communication apparatus as a connection partner in the second link established by the connection unit, a Pairwise Transient Key (PTK) to be shared between communication via the first link and communication via the second link.
    Type: Application
    Filed: December 7, 2022
    Publication date: April 6, 2023
    Inventor: HIROHIKO INOHIZA
  • Publication number: 20230041366
    Abstract: A communication apparatus establishes, in a case where a second radio link is established with a partner apparatus in communication in addition to an already established first radio link, the second radio link using information obtained by authentication processing executed at the time of establishing the first radio link.
    Type: Application
    Filed: October 21, 2022
    Publication date: February 9, 2023
    Inventor: Hirohiko Inohiza
  • Publication number: 20230023120
    Abstract: Data including a plurality of blocks is received from a communication apparatus 102. A communication time of retransmission data which is a part of the received data and which is to be retransmitted by the communication apparatus 102 and a communication time of a response signal to be transmitted by the communication apparatus 103 are acquired. The response signal in which a communication reservation time is set is transmitted wherein the communication reservation time includes the communication time of the retransmission data and the communication time of the response signal.
    Type: Application
    Filed: August 3, 2022
    Publication date: January 26, 2023
    Inventor: Hirohiko Inohiza
  • Publication number: 20230007716
    Abstract: A communication apparatus includes an establishment unit configured to establish a first link and a second link with another communication apparatus in a plurality of frequency channels where wireless communication compliant with an Institute of Electrical and Electronics Engineers (IEEE) 802.11 series standard is performed, and a notification unit configured to, in a case where information about operation of the first link established by the establishment unit is changed, notify the other communication apparatus of the changed information about the operation of the first link via the second link.
    Type: Application
    Filed: September 8, 2022
    Publication date: January 5, 2023
    Inventor: Hirohiko Inohiza
  • Patent number: 11539391
    Abstract: A wireless communication apparatus 20 includes: a first communication unit configured to perform wireless communication that supports a plurality of wireless communication systems with different using frequency bands; a second communication unit configured to perform wired communication that supports a plurality of wired communication systems each with a different basic frequency used in data communication; and a switching unit configured to switch a wired communication system used in the wired communication by the second communication unit so that the basic frequency falls outside a predetermined frequency band including the using frequency bands of the wireless communication by the first communication unit.
    Type: Grant
    Filed: December 5, 2019
    Date of Patent: December 27, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hajime Shimura, Hirohiko Inohiza
  • Patent number: 11496962
    Abstract: A communication apparatus operable to communicate with a plurality of terminal stations capable of operating in a Doze state and in an Awake state in an IEEE 802.11ba standard, obtains, from each of the plurality of terminal stations, a value of a Transition delay indicating a time period required to switch from the Doze state to the Awake state, groups the plurality of terminal stations into a plurality of groups based on the value of each of the plurality of terminal stations, sets an order for transmitting the Wake-up frame for causing a transition from the Doze state to the Awake state for each of the plurality of groups, and transmits, according to the set order, the Wake-up frame to one or more terminal stations belonging to each of the plurality of groups.
    Type: Grant
    Filed: March 30, 2020
    Date of Patent: November 8, 2022
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Hirohiko Inohiza
  • Patent number: 11483730
    Abstract: When a plurality of other communication apparatuses parallelly communicates with a first communication apparatus by using a frequency band assigned by the first communication apparatus to each of the plurality of other communication apparatuses including a second communication apparatus, a transmission rate when communicating with the second communication apparatus is set based on a communication time in communication with a third communication apparatus included in the plurality of other communication apparatuses.
    Type: Grant
    Filed: December 17, 2019
    Date of Patent: October 25, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventor: Hirohiko Inohiza
  • Publication number: 20220330367
    Abstract: A communication apparatus communicates a wireless frame compliant with an Institute of Electrical and Electronics Engineers (IEEE) 802.11 series standard with a partner apparatus, wherein a media access control (MAC) frame of the wireless frame includes information indicating a frequency channel as information related to communications via a plurality of links compliant with the IEEE 802.11 series standard to be established on a plurality of different frequency channels where an apparatus transmitted the wireless frame and a partner apparatus can perform wireless communication compliant with the IEEE 802.11 series standard.
    Type: Application
    Filed: June 22, 2022
    Publication date: October 13, 2022
    Inventor: Hirohiko Inohiza
  • Publication number: 20220272689
    Abstract: When a communication apparatus transmits or receives a radio frame compliant with the IEEE 802.11 standard series to or from a partner apparatus in communication, capability information representing an allocation scheme of a frequency resource supported by the apparatus that has transmitted the radio frame is indicated in a MAC (Medium Access Control) frame of the radio frame.
    Type: Application
    Filed: May 12, 2022
    Publication date: August 25, 2022
    Inventor: Hirohiko Inohiza
  • Publication number: 20220264579
    Abstract: A communication apparatus 102 generates and transmits an Extremely High Throughput (EHT) Multi User (MU) Physical Layer Protocol Data Unit (PPDU) including an Extremely High Throughput-Signal-B (EHT-SIG-B) including information indicating that a plurality of Resource Units (RUs) is allocated to a communication apparatus 103, or a Trigger Frame including User Info including information indicating that a plurality of RUs is allocated to the communication apparatus 103.
    Type: Application
    Filed: May 3, 2022
    Publication date: August 18, 2022
    Inventor: Hirohiko Inohiza
  • Patent number: 11375520
    Abstract: A communication apparatus obtains, from each of a plurality of other communication apparatuses, an amount of buffered data of the each of the plurality of other communication apparatuses, divides the plurality of other communication apparatuses into a plurality of groups based on the amount of buffered data of each of the plurality of other communication apparatuses, and assigns to each of the groups wireless frequency resources for which a shared data communication time is set.
    Type: Grant
    Filed: October 21, 2019
    Date of Patent: June 28, 2022
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Hirohiko Inohiza
  • Publication number: 20220052889
    Abstract: A physical layer (PHY) that includes a Legacy Short Training Field (L-STF), a Legacy Long Training Field (L-LTF), a Legacy Signal Field (L-SIG), an Extremely High Throughput Signal A Field (EHT-SIG-A), an Extremely High Throughput Signal B Field (EHT-SIG-B) including a field of four or more bits indicating the number of Space-Time Streams, an EHT Short Training Field (EHT-STF), and an EHT Long Training Field (EHT-LTF) in this order is used.
    Type: Application
    Filed: August 26, 2021
    Publication date: February 17, 2022
    Inventor: Hirohiko Inohiza
  • Publication number: 20220029749
    Abstract: A communication device transmits to a communication partner device or receives from the partner device a radio frame conforming to an IEEE 802.11 standard series, wherein a capability of HARQ (Hybrid Automatic Repeat reQuest) that a device that transmitted the radio frame has is indicated in a MAC (media access control) frame of the radio frame.
    Type: Application
    Filed: October 7, 2021
    Publication date: January 27, 2022
    Inventor: Hirohiko Inohiza