公开(公告)号：US10972964B2

公开(公告)日：2021-04-06

申请号：US16520065

申请日：2019-07-23

Applicant: Casio Computer Co., Ltd.

Inventor： Toshihiro Takahashi ,  Takahiro Tomida ,  Tsutomu Terazaki

IPC: H04B7/00 ,  H04W48/10 ,  H04W4/80 ,  H04W4/06

Abstract: A communication device, including: a communicator that communicates with a terminal that broadcasts an advertisement and broadcasts to a scanner terminal that receives data from the terminal; and a controller that controls the communicator to transmit, to the terminal, data that is included in an advertisement that is scheduled to be broadcast by the terminal and transmission information regarding the advertisement and cause the communicator to broadcast the transmission information that is intended to cause the scanner terminal to receive the advertisement that is broadcast by the terminal.

公开(公告)号：US09681258B2

公开(公告)日：2017-06-13

申请号：US14661931

申请日：2015-03-18

Applicant: CASIO COMPUTER CO., LTD.

Inventor： Toshihiro Takahashi ,  Takahiro Tomida ,  Tsutomu Terazaki ,  Ryo Okumura

IPC: H04W4/00 ,  H04W8/00 ,  H04W84/20

CPC classification number: H04W4/80 ,  H04W8/005 ,  H04W84/20

Abstract: When executing a predetermined application in which radio communication with a slave device is necessary, a master device scans an advertisement from the slave device by using previously-set one channel among three channels for advertising. When transmitting the advertisement to the master device executing the predetermined application, the slave device transmits the advertisement by using previously-set one channel among three channels for advertising.

公开(公告)号：US11368923B2

公开(公告)日：2022-06-21

申请号：US16590052

申请日：2019-10-01

Applicant: CASIO COMPUTER CO., LTD.

Inventor： Kazuho Kyou ,  Sadao Nagashima ,  Hiroshi Iwamiya ,  Toshihiro Takahashi ,  Takahiro Tomida ,  Tsutomu Terazaki ,  Ryo Okumura

IPC: H04W52/24 ,  H04W72/04 ,  H04W4/80 ,  H04W8/00

Abstract: A wireless communication apparatus includes a wireless communicator configured to perform wireless communication with another wireless communication apparatus, and a processor. The processor controls the wireless communicator to transmit to the other wireless communication apparatus prescribed information while incrementally changing transmission power by a prescribed degree until a change occurs in a signal reception state of a connection request from the other wireless communication apparatus, and starts transmission of the prescribed information to the other wireless communication apparatus during a next communication onwards at a transmission power based on a transmission power occurring when the change occurs in the signal reception state of the connection request.

公开(公告)号：US10575340B2

公开(公告)日：2020-02-25

申请号：US16101112

申请日：2018-08-10

Applicant: CASIO COMPUTER CO., LTD.

Inventor： Tsutomu Terazaki ,  Toshihiro Takahashi ,  Ryo Okumura ,  Takahiro Tomida

IPC: H04W76/00 ,  H04W84/20 ,  H04L29/06 ,  H04W4/18 ,  H04W8/24 ,  G06Q30/02 ,  H04J3/06 ,  H04W12/08 ,  H04W12/00

Abstract: A radio communication apparatus performing radio communication based on either role, a master or a slave, includes a role change receiver receiving a role change request from a slave to a master when the radio communication apparatus has a role of slave and has established connection to another radio communication apparatus operating as a master, and a receiver awaiting identification information transmitted by the other radio communication apparatus by receiving multiple channels including a given channel in a given pattern when the role change receiver receives the change request. The receiver receives the multiple channels in the given pattern such that the time or number of times of awaiting the identification information on the given channel is longer or higher than a given comparison criterion for when the role change receiver does not receive the change request.

公开(公告)号：US10231266B2

公开(公告)日：2019-03-12

申请号：US15386047

申请日：2016-12-21

Applicant: CASIO COMPUTER CO., LTD.

Inventor： Tsutomu Terazaki ,  Takahiro Tomida ,  Ryo Okumura ,  Toshihiro Takahashi

IPC: H04J3/22 ,  H04W76/10 ,  H04W74/08 ,  H04W84/12 ,  H04W80/02

Abstract: According to an aspect of the present invention, a device for communication according to a specific communication protocol includes a processor for generating a connection request frame for requesting a connection to other device based on the communication protocol. The connection request frame includes a predetermined field. The processor initiates data communication at predetermined timing in a given time interval in the case of setting the predetermined field of the connection request frame to a predetermined value and receiving a connection assignment frame for accepting the connection request from the other device.

公开(公告)号：US10159094B2

公开(公告)日：2018-12-18

申请号：US15263514

申请日：2016-09-13

Applicant: CASIO COMPUTER CO., LTD.

Inventor： Toshihiro Takahashi ,  Takahiro Tomida ,  Tsutomu Terazaki ,  Ryo Okumura

IPC: H04W74/08 ,  H04W48/12 ,  H04L29/06 ,  H04W74/00

Abstract: According to an aspect of the present invention, a device for communication according to a specific communication protocol is provided. The communication device includes a processor for generating and processing frames based on frame formats defined by the communication protocol. The processor generates a beacon frame so that information on a collision avoidance scheme supported by the device of a plurality kinds of information specified based on the communication protocol is omitted. Further, the processor processes a connection request frame transmitted from other device to extract information on a collision avoidance scheme supported by the other device, and controls communication with the other device based on comparison of the extracted information on the collision avoidance scheme with the information on the collision avoidance scheme supported by the device.

公开(公告)号：US10136297B2

公开(公告)日：2018-11-20

申请号：US14559510

申请日：2014-12-03

Applicant: CASIO COMPUTER CO., LTD.

Inventor： Tsutomu Terazaki ,  Takahiro Tomida ,  Toshihiro Takahashi

IPC: H04W8/00 ,  H04W76/10 ,  H04W52/02

Abstract: A radio communication device, which performs radio communication with another radio communication device, includes: a radio communication unit configured to send identification information at a predetermined interval and receive a scan request sent by the another radio communication device that has received the identification information; and a control unit configured to change the predetermined interval in the case where the radio communication unit receives the scan request sent by the another radio communication device.

公开(公告)号：US20170343965A1

公开(公告)日：2017-11-30

申请号：US15442933

申请日：2017-02-27

Applicant: CASIO COMPUTER CO., LTD.

Inventor： Kazuho Kyou ,  Makoto Nakagawa ,  Hiroshi Iwamiya ,  Takahiro Tomida ,  Tsutomu Terazaki ,  Ryo Okumura ,  Toshihiro Takahashi

IPC: G04R20/30 ,  G04R20/06 ,  G04G9/00 ,  G04G7/00 ,  G04G5/00 ,  G04R20/18 ,  G04B19/22

CPC classification number: G04R20/30 ,  G04G5/002 ,  G04G7/00 ,  G04G9/0011 ,  G04R20/06 ,  G04R20/18 ,  G04R20/26 ,  Y02D70/10 ,  Y02D70/1262 ,  Y02D70/14 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/20 ,  Y02D70/26

Abstract: According to an aspect of the present invention, a device capable of wireless communication includes a counter for counting current time, and a processor for setting a communication mode of the device to one of a notification mode in which the device sends a first notification signal for informing of its existence and a detection mode in which the device detects a second notification signal sent from other device. In the case that the processor changes the communication mode of the device from the notification mode to the detection mode and the second notification signal received in the detection mode includes first time information, the processor corrects time of the counter based on the first time information.

公开(公告)号：US20170156101A1

公开(公告)日：2017-06-01

申请号：US15270190

申请日：2016-09-20

Applicant: CASIO COMPUTER CO., LTD.

Inventor： Toshihiro Takahashi ,  Takahiro Tomida ,  Ryo Okumura ,  Tsutomu Terazaki

IPC: H04W40/24 ,  H04W76/02 ,  H04L5/00

CPC classification number: H04W40/244 ,  H04L5/0053 ,  H04L5/0055 ,  H04W52/0206 ,  H04W52/0229 ,  H04W52/0258 ,  H04W76/10 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/20

Abstract: According to an aspect of the present invention, a device for generating frames for communication according to a specific communication protocol is provided. The communication protocol defines a plurality of kinds of frame formats and a beacon frame format defined by the communication protocol specifies a plurality of fields to be included in a beacon frame. The device generates a frame based on a frame format defined by the communication protocol. The device generates a beacon frame so that at least one of the plurality of fields specified by the beacon frame format defined by the communication protocol is omitted.

公开(公告)号：US11228894B2

公开(公告)日：2022-01-18

申请号：US16587797

申请日：2019-09-30

Applicant: CASIO COMPUTER CO., LTD.

Inventor： Kazuho Kyou ,  Sadao Nagashima ,  Hiroshi Iwamiya ,  Tsutomu Terazaki ,  Toshihiro Takahashi ,  Takahiro Tomida

IPC: H04W8/00 ,  H04W76/14 ,  H04W4/06 ,  H04W68/00 ,  H04W4/80 ,  H04W48/10 ,  H04W56/00

Abstract: A wireless communication apparatus includes (i) a wireless communicator capable of broadcasting an extended advertising packet having a large transmittable capacity and a compatible advertising packet having a transmittable capacity smaller than the extended advertising packet, and (ii) a processor. The wireless communicator periodically broadcasts the extended advertising packet based on a command from the processor. The processor sets offset information for acquiring of a time at which the extended advertising packet is receivable in an offset notification packet that is the compatible advertising packet, and broadcasts the offset notification packet via the wireless communicator. The offset information is set based on a transmission timing of the offset notification packet and a transmission timing of the extended advertising packet.