公开(公告)号：US12185193B2

公开(公告)日：2024-12-31

申请号：US17690499

申请日：2022-03-09

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Akira Yamasaki ,  Kazuki Hashimoto ,  Nobuhiko Arashin

IPC: H04W4/06 ,  H04L5/00 ,  H04L61/5069 ,  H04L12/18

Abstract: A communication device for performing wireless communication with another communication device, includes a wired communication interface configured to be connected to a wired communication line, a wireless communication interface configured to be connected to the other communication device by wireless communication, an antenna configured to transmit or receive a wireless signal related to the wireless communication, and a processor configured to, in a case that a destination of a first frame received by the wired communication interface indicates a broadcast address or a multicast address, wirelessly transmit a second frame to the other communication device with a modulation scheme and a coding rate set according to a wireless communication environment with the other communication device. The second frame includes the first frame and the second frame has a unicast address indicating a destination of the other communication device.

公开(公告)号：US11435934B2

公开(公告)日：2022-09-06

申请号：US16943489

申请日：2020-07-30

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Akira Yamasaki ,  Nobuhiko Arashin

IPC: G06F3/00 ,  G06F3/06 ,  G06F13/38

Abstract: A recording system according to the present disclosure includes a first host device, a first communication device connected to the first host device, a second host device, and a second communication device connected to the second host device. The second communication device is connected to a recording medium and wirelessly connected to the first communication device, and, when the recording medium is controlled to be writable between the second host device and the second communication device, the first communication device is configured to transmit information indicating that the recording medium is unwritable to the first host device.

公开(公告)号：US10448262B2

公开(公告)日：2019-10-15

申请号：US15847257

申请日：2017-12-19

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Akira Yamasaki ,  Nobuhiko Arashin ,  Takuji Maeda

IPC: H04W16/28 ,  H04W4/00 ,  H04W76/15

Abstract: A communication system includes a transmission terminal and a reception terminal, and the transmission terminal transmits data to the reception terminal. The transmission terminal includes a storage unit that stores data and management information of the data, and a first communication unit that performs communication using a first radio method having non-directivity and a second radio method having directivity. The reception terminal includes a second communication unit that performs communication using the first radio method having non-directivity and the second radio method having directivity, and a selector that selects the data based on the management information. The first communication unit and the second communication unit communicate with each other using the first radio method having non-directivity when selecting the data to be transmitted, and communicates with each other using the second radio method having directivity when transmitting the selected data.

公开(公告)号：US09859969B2

公开(公告)日：2018-01-02

申请号：US14930696

申请日：2015-11-03

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Akira Yamasaki ,  Nobuhiko Arashin

IPC: H04B7/15 ,  H04W88/04 ,  H04W88/08 ,  H04W84/04 ,  H04L1/20 ,  H04L1/00

CPC classification number: H04B7/15 ,  H04L1/20 ,  H04L2001/0094 ,  H04W84/047 ,  H04W88/04 ,  H04W88/08

Abstract: A relay apparatus of the present disclosure is a relay apparatus which is connected to a host apparatus by a first communication method and to a terminal apparatus by a second communication method, and which transmits data to the terminal apparatus and receives data from the terminal apparatus in accordance with an instruction from the host apparatus, the relay apparatus including a communication quality measuring unit which extracts communication quality of the second communication method, a packet processor which detects an error in connection with the terminal apparatus, and an error transmission determining unit which changes timing of notifying the host apparatus of the error detected in the packet processor in accordance with the communication quality extracted in the communication quality measuring unit.

公开(公告)号：US09622117B2

公开(公告)日：2017-04-11

申请号：US14585766

申请日：2014-12-30

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Akira Yamasaki ,  Nobuhiko Arashin

IPC: H04W36/00 ,  H04W36/14 ,  H04L29/06 ,  H04W84/12

CPC classification number: H04W36/0011 ,  H04L69/18 ,  H04W36/00 ,  H04W36/14 ,  H04W84/12

Abstract: A wireless communication apparatus uses a Wi-Fi system to transmit to another wireless communication apparatus a WiGig switching request frame (F1) requesting that the communication method for communicating with another wireless communication apparatus be switched from the Wi-Fi system to a WiGig system. The wireless communication apparatus uses RSSI when the WiGig switching request frame (F1) was received to determine whether to allow the switch from the Wi-Fi system to the WiGig system, and uses the Wi-Fi system to transmit to the wireless communication apparatus a WiGig switching response frame (F2) indicating the result of the determination.