公开(公告)号：US20230247242A1

公开(公告)日：2023-08-03

申请号：US18131933

申请日：2023-04-07

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Yutaka MURAKAMI ,  Tomohiro KIMURA

IPC: H04N21/242 ,  H04H20/18 ,  H04N21/2381 ,  H04N21/462

CPC classification number: H04N21/242 ,  H04H20/18 ,  H04N21/2381 ,  H04N21/462 ,  H04N21/4622

Abstract: Provided is a method for transmitting a broadcasting content and a line content, the broadcasting content and the line content being synchronously displayed, the method including: generating a line parity packet from a plurality of line data packets in each of which the line content is stored; transmitting the line data packet and the line parity packet through a communication line; and transmitting a plurality of broadcasting data packets in each of which the broadcasting content is stored, from a base station using a broadcasting wave, a transfer clock time of the broadcasting content being delayed by a predetermined time compared with a transfer clock time of the line content. At this point, video quality can be improved when the real-time broadcasting program content and the real-time line content are simultaneously displayed.

公开(公告)号：US20230188242A1

公开(公告)日：2023-06-15

申请号：US18106085

申请日：2023-02-06

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Yutaka MURAKAMI ,  Nobuhiko HASHIDA

IPC: H04J14/02 ,  H04B10/2575

CPC classification number: H04J14/0213 ,  H04B10/25753 ,  H04J14/0226 ,  H04J14/0234 ,  H04J14/0257

Abstract: A transmission device includes a symbol generator that generates a modulation symbol by mapping transmission data to a signal point arranged in a two-dimensional or three-dimensional color space; and an outputter that outputs an optical signal modulated according to the modulation symbol.

公开(公告)号：US20230123213A1

公开(公告)日：2023-04-20

申请号：US18082970

申请日：2022-12-16

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Yutaka MURAKAMI ,  Nobuhiko HASHIDA

IPC: H04B10/116 ,  H04B10/85 ,  H04N7/22

Abstract: A communication system includes: a plurality of cameras that generate image data by capturing images; a server that stores the image data generated by each of the plurality of cameras; and a plurality of transmission devices in one-to-one correspondence with the plurality of cameras. Each of the plurality of transmission devices transmits light, including, as a visible light communication signal, information related to communication for accessing a storage location at which the image data generated by a corresponding one of the plurality of cameras is stored in the server.

公开(公告)号：US20230089454A1

公开(公告)日：2023-03-23

申请号：US18070821

申请日：2022-11-29

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Yutaka MURAKAMI ,  Nobuhiko HASHIDA

IPC: H04B10/116 ,  H04B10/80

Abstract: A mobile terminal is a communication device that communicates using visible light, and includes: a plurality of light emitters, each of which is disposed along the front surface of the mobile terminal and transmits a visible light signal; and a plurality of light receivers, each of which is disposed along the front surface and receives a visible light signal. The plurality of light emitters are disposed on the left side of all of the plurality of light receivers, and the plurality of first light receivers are disposed on the right side of all of the plurality of light emitters.

公开(公告)号：US20220353657A1

公开(公告)日：2022-11-03

申请号：US17621202

申请日：2020-06-11

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Yutaka MURAKAMI

IPC: H04W4/50 ,  H04W4/90 ,  H04W4/33

Abstract: In the present invention, data is transmitted more suitably in an emergency state. This communication system comprises: a management device that manages first data including settings pertaining to communication during a normal state, and second data including settings pertaining to communication during an emergency state; and a communication instrument that controls a communication operation to another communication instrument in the normal state on the basis of the first data received from the management device, and that controls a communication operation to the other communication instrument in the emergency state on the basis of the second data received from the management device.

公开(公告)号：US20220248070A1

公开(公告)日：2022-08-04

申请号：US17727243

申请日：2022-04-22

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Yutaka MURAKAMI ,  Tomohiro KIMURA

IPC: H04N21/242 ,  H04H20/18 ,  H04N21/2381 ,  H04N21/462

Abstract: Provided is a method for transmitting a broadcasting content and a line content, the broadcasting content and the line content being synchronously displayed, the method including: generating a line parity packet from a plurality of line data packets in each of which the line content is stored; transmitting the line data packet and the line parity packet through a communication line; and transmitting a plurality of broadcasting data packets in each of which the broadcasting content is stored, from a base station using a broadcasting wave, a transfer clock time of the broadcasting content being delayed by a predetermined time compared with a transfer clock time of the line content. At this point, video quality can be improved when the real-time broadcasting program content and the real-time line content are simultaneously displayed.

公开(公告)号：US20220077902A1

公开(公告)日：2022-03-10

申请号：US17528796

申请日：2021-11-17

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Yutaka MURAKAMI ,  Hiroyuki MOTOZUKA

IPC: H04B7/0456 ,  H04B1/04 ,  H04L27/20

Abstract: A transmission device includes: a weighting synthesizer that generates a first precoded signal and a second precoded signal from a first baseband signal and a second baseband signal, respectively; a phase changer that applies a phase change of i×Δλ to the second precoded signal; an inserter that inserts a pilot signal into the second precoded signal applied with the phase change; and a phase changer that applies a phase change to the second precoded signal applied with the phase change and inserted with the pilot signal. The weighting synthesizer performs, in the precoding process, a calculation that uses F = ( e j ⁢ ⁢ θ 11 e j ⁡ ( θ 11 + π 4 ) e j ⁢ ⁢ θ 21 e j ⁡ ( θ 21 + π + π 4 ) ) on the first baseband signal and the second baseband signal modulated via a modulation scheme of QPSK.

公开(公告)号：US20210376900A1

公开(公告)日：2021-12-02

申请号：US17394947

申请日：2021-08-05

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Yutaka MURAKAMI ,  Tomohiro KIMURA ,  Mikihiro OUCHI

IPC: H04B7/06 ,  H04B7/024 ,  H04W28/16 ,  H04W16/28 ,  H04B17/309 ,  H04W76/34 ,  H04W76/15 ,  H04W72/04

Abstract: An indicator in a master AP from among a plurality of APs obtains communication quality of communication with an AP which is a communication partner. In the case where the obtained communication quality is less than a threshold, the indicator causes the plurality of APs including the master AP to perform cooperative operation to transmit data. In the case where the obtained communication quality is not less than the threshold, the indicator causes the plurality of APs including the master AP to stop the cooperative operation.

公开(公告)号：US20210273687A1

公开(公告)日：2021-09-02

申请号：US17317311

申请日：2021-05-11

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Tomohiro KIMURA ,  Yutaka MURAKAMI ,  Mikihiro OUCHI

IPC: H04B7/0413 ,  H04B1/16 ,  H04W4/06 ,  H04W16/26 ,  H04W16/28 ,  H04W76/40 ,  H04B7/0404 ,  H04B7/06 ,  H04B7/08 ,  H04N21/2365 ,  H04N21/426

Abstract: By a transmission method according to one aspect of the present disclosure, in a broadcasting system that generates a first broadcasting signal and a second broadcasting signal by performing multi-antenna encoding on program data, and wirelessly transmits a first broadcasting signal and a second broadcasting signal, a first transmit station transmits the first broadcasting signal, a second transmit station transmits the second broadcasting signal, the first transmit station and the second transmit station transmit the first broadcasting signal and the second broadcasting signal to an overlapping area at an identical time using an overlapping frequency band, polarized wave transmitted from the first transmit station differs from polarized wave transmitted from the second transmit station, and arrangement of the first transmit station differs from arrangement of the second transmit station.

公开(公告)号：US20210194738A1

公开(公告)日：2021-06-24

申请号：US17191838

申请日：2021-03-04

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Yutaka MURAKAMI ,  Yoshio URABE ,  Tomohiro KIMURA ,  Mikihiro OUCHI

IPC: H04L27/26 ,  H04L5/00 ,  H04B7/0413 ,  H04B7/00 ,  H04L1/16 ,  H04B7/06 ,  H04B7/0456

Abstract: A transmitting method includes: configuring a frame using a plurality of orthogonal frequency-division multiplexing (OFDM) symbols, by allocating a plurality of transmission data to a plurality of areas; and transmitting the frame. The plurality of areas are each identified by at least one time resource among resources and at least one frequency resource among frequency resources. The frame includes a first period in which a preamble is transmitted, and a second period in which the plurality of transmission data are transmitted by at least one of time division and frequency division. The second period includes a first area, and the first area includes a data symbol generated from first transmission data, a data symbol generated from second transmission data and subsequent to the data symbol generated from the first transmission data, and a dummy symbol subsequent to the data symbol generated from the second transmission data.