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公开(公告)号：US20210136273A1
公开(公告)日：2021-05-06
申请号：US17096545
申请日：2020-11-12
Inventor： Mitsuaki OSHIMA , Koji NAKANISHI , Hideki AOYAMA , Ikuo FUCHIGAMI , Hidehiko SHIN , Tsutomu MUKAI , Yosuke MATSUSHITA , Shigehiro IIDA , Kazunori YAMADA
IPC: H04N5/235 , H04B10/116 , H04B10/516
Abstract: A method includes determining a pattern of a change in luminance, by demodulating an identification information to be transmitted with a ceiling light, and transmitting the identification information, by the ceiling light changing in luminance according to the determined pattern of the change in luminance. Additionally, in the determining, a first luminance change pattern, corresponding to a first body, and a second luminance change pattern, corresponding to a first header used for the first body, are determined. Furthermore, in the transmitting, the first header and the first body are transmitted by the ceiling light changing in luminance according to the first luminance change pattern, the second luminance change pattern, and the first luminance change pattern in the stated order.
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公开(公告)号：US20190253598A1
公开(公告)日：2019-08-15
申请号：US16394847
申请日：2019-04-25
Inventor： Mitsuaki OSHIMA , Koji NAKANISHI , Hideki AOYAMA , Ikuo FUCHIGAMI , Hidehiko SHIN , Tsutomu MUKAI , Yosuke MATSUSHITA , Shigehiro IIDA , Kazunori YAMADA
IPC: H04N5/235 , H04B10/516 , H04B10/116
Abstract: An information communication method obtains information from a subject using a terminal device that includes an image sensor. The method includes setting an exposure time of the image sensor having a plurality of exposure lines so that a bright line corresponding to each of the plurality of exposure lines included in the image sensor appears according to a change in luminance of the subject. The method also includes obtaining a bright line image including a plurality of bright lines, and obtaining identification information of the subject. In the obtaining of the bright line image, an exposure time of each of the plurality of exposure lines partially overlaps with an exposure time of an adjacent one of the plurality of exposure lines. During asynchronous communication, a minimum width of the stripe pattern corresponds to at least two bright lines in the obtained bright line image.
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公开(公告)号：US20190238740A1
公开(公告)日：2019-08-01
申请号：US16380515
申请日：2019-04-10
Inventor： Mitsuaki OSHIMA , Koji NAKANISHI , Hideki AOYAMA , Ikuo FUCHIGAMI , Hidehiko SHIN , Tsutomu MUKAI , Yosuke MATSUSHITA , Shigehiro IIDA , Kazunori YAMADA
IPC: H04N5/235 , H04B10/116 , H04B10/516
Abstract: An information communication method selectively obtains a location of a terminal device. Determining the location of the terminal device by wireless communication with a wireless access point includes receiving a radio signal including a first identification information to identify a location of the wireless access point, and calculating the location of the terminal device using the identified location of the wireless access point, which is identified by the first identification information. Determining the location of the terminal device by visible light communication with a subject provides higher accuracy and includes setting an exposure time of an image sensor having a plurality to exposure lines so that a bright line corresponding to each of the plurality of exposure lines included in the image sensor appears according to a change in luminance of the subject, obtaining a bright line image by capturing the subject, and demodulating data from the bright line image.
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4.发明申请公开(公告)号：US20180076893A1
公开(公告)日：2018-03-15
申请号：US15813244
申请日：2017-11-15
Inventor： Hideki AOYAMA , Mitsuaki OSHIMA , Koji NAKANISHI , Toshiyuki MAEDA , Akihiro UEKI , Kengo MIYOSHI , Tsutomu MUKAI
IPC: H04B10/116
CPC classification number: H04B10/116 , H04B10/1149 , H04M1/7253 , H04M2250/52
Abstract: A receiving method includes: setting a first exposure time for at least one exposure line of exposure lines in an image sensor, setting a second exposure time for a remainder of the exposure lines in the image sensor, and causing the image sensor to capture an image of a light transmitter, to obtain a normal image from the at least one exposure line with the first exposure time, and to obtain a bright line image from the remainder of the exposure lines with the second exposure time. The second exposure time is shorter than the first exposure time. The bright line image includes a plurality of bright lines, each of which corresponds to a different one of the remainder of the exposure lines in the image sensor. Information is obtained by decoding a pattern of the plurality of the bright lines included in the obtained bright line image.
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5.发明申请公开(公告)号：US20170180047A1
公开(公告)日：2017-06-22
申请号：US15403570
申请日：2017-01-11
Inventor： Hideki AOYAMA , Mitsuaki OSHIMA , Koji NAKANISHI , Toshiyuki MAEDA , Akihiro UEKI , Kengo MIYOSHI , Tsutomu MUKAI
IPC: H04B10/116
CPC classification number: H04B10/116 , H04B10/1149 , H04M1/7253 , H04M2250/52
Abstract: A computer-implemented method is provided, in which a plurality of luminance change frequencies of a light emitter is determined by coding one of a plurality of transmission information sources. The light emitter transmits a transmission information source by a change in luminance according to each of the plurality of luminance change frequencies. A signal, which controls the change in luminance of the light emitter according to each of the plurality of luminance change frequencies, is output to the light emitter. The plurality of luminance change frequencies include a first frequency and a second frequency. A signal of the first frequency and a signal of the second frequency respectively cause the light emitter to change in luminance according to the first frequency during a first time period and to change in luminance according to the second frequency during a second time period after the first time period has elapsed.
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Patent Agency Ranking
公开(公告)号：US20170149500A1
公开(公告)日：2017-05-25
申请号：US15428178
申请日：2017-02-09
Inventor： Hideki AOYAMA , Mitsuaki OSHIMA , Koji NAKANISHI , Toshiyuki MAEDA , Akihiro UEKI , Kengo MIYOSHI , Tsutomu MUKAI
IPC: H04B10/116 , H04B10/54
CPC classification number: H04B10/116 , H04B10/1149 , H04B10/54 , H04M1/7253 , H04M2250/52
Abstract: A visible light signal transmitting method includes: determining a luminance change pattern to transmit the visible light signal; switching a common switch according to the luminance change pattern, the common switch being for turning ON a plurality of light sources in common; and turning ON a first pixel switch, to cause the first light source to be ON for a period in which the common switch is ON and the first pixel switch is ON, to transmit the visible light signal, the first light source being one of the plurality of light sources. In the turning ON of a first pixel switch, when the image is displayed on the display, the first pixel switch is switched to increase a lighting period that corresponds to the first light source, to compensate a period in which the first light source is OFF for transmission of the visible light signal.
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公开(公告)号：US20170041073A1
公开(公告)日：2017-02-09
申请号：US15333328
申请日：2016-10-25
Inventor： Mitsuaki OSHIMA , Koji NAKANISHI , Hideki AOYAMA , Ikuo FUCHIGAMI , Tsutomu MUKAI , Hidehiko SHIN , Yosuke MATSUSHITA , Shigehiro IIDA , Kazunori YAMADA
IPC: H04B10/116 , H04B10/114
CPC classification number: H04B10/116 , H04B10/11 , H04B10/1143 , H04L12/282 , H04L2012/2841 , H04N5/2353 , H04W4/20 , H04W4/50
Abstract: An information communication method is provided that determines a pattern of a change in luminance by modulating a signal to be transmitted, and outputs the determined pattern to a light emitter that changes in luminance according to the determined pattern. In the method, the signal includes a first data, a first header of the first data, second data, and a second header of the second data. Additionally, the pattern of the change in luminance is determined according to in an order of (i) the first data, (ii) the first header, (iii) the first data, (iv) the second data, (v) the second header, and (vi) the second data.
Abstract translation: 提供一种信息通信方法，其通过调制要发送的信号来确定亮度变化的模式，并将所确定的图案输出到根据所确定的图案而改变亮度的发光体。 在该方法中，信号包括第一数据，第一数据的第一报头，第二数据和第二数据的第二报头。 另外，根据（i）第一数据，（ii）第一标题，（iii）第一数据，（iv）第二数据，（v）第二数据， 标题，和（vi）第二数据。
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公开(公告)号：US20160087721A1
公开(公告)日：2016-03-24
申请号：US14959264
申请日：2015-12-04
Inventor： Mitsuaki OSHIMA , Koji NAKANISHI , Hideki AOYAMA , Ikuo FUCHIGAMI , Hidehiko SHIN , Tsutomu MUKAI , Yosuke MATSUSHITA , Shigehiro IIDA , Kazunori YAMADA
IPC: H04B10/116 , H04N5/235 , H04N5/353 , H04N5/232
CPC classification number: H04N5/2353 , H04B10/11 , H04B10/1143 , H04B10/116 , H04N5/23203 , H04N5/23245 , H04N5/3532 , H04W4/20 , H04W4/21 , H04W4/50
Abstract: An apparatus includes a processor and a recording medium having a program, the program causing the processor to execute operations. The operations include a normal mode and a visible light communication mode, wherein the normal mode and the visible light communication mode are switchable. In the normal mode, first image data is obtained by image capture with a first exposure time by sequentially starting exposure for a plurality of exposure lines in an image sensor each at a different time and each of the plurality of exposure lines partially overlaps in exposure time an adjacent exposure line. The visible light communication mode includes (i) setting a second exposure time of the image sensor, (ii) obtaining a bright line image including the plurality of bright lines, and (iii) obtaining information by demodulating data specified by a pattern of the plurality of bright lines included in the obtained bright line image.
Abstract translation: 一种装置包括处理器和具有程序的记录介质，该程序使处理器执行操作。 操作包括正常模式和可见光通信模式，其中正常模式和可见光通信模式是可切换的。 在正常模式下，通过在不同时间对图像传感器中的多个曝光线依次开始曝光，以第一曝光时间进行图像拍摄，获得第一图像数据，并且多个曝光线中的每一个在曝光时间部分重叠 相邻曝光线。 可见光通信模式包括（i）设置图像传感器的第二曝光时间，（ii）获得包括多条亮线的亮线图像，以及（iii）通过解调由多个亮线的图案指定的数据来获得信息 包含在所获得的亮线图像中的亮线。
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公开(公告)号：US20220132015A1
公开(公告)日：2022-04-28
申请号：US17490727
申请日：2021-09-30
Inventor： Mitsuaki OSHIMA , Koji NAKANISHI , Hideki AOYAMA , Ikuo FUCHIGAMI , Hidehiko SHIN , Tsutomu MUKAI , Yosuke MATSUSHITA , Shigehiro IIDA , Kazunori YAMADA
IPC: H04N5/235 , H04B10/116 , H04B10/516
Abstract: A method includes setting an exposure time of an image sensor included in a terminal device so that, in an image obtained by capturing a subject by the image sensor, a bright line corresponding to each of a plurality of exposure lines included in the image sensor appears according to a change in luminance of the subject. The method also includes obtaining a bright line image including a plurality of bright lines, by capturing the subject that changes in luminance by the image sensor with the set exposure time. The method further includes estimating a plurality of center areas each of which is in each of the plurality of bright lines, and obtaining identification information of the subject, by demodulating data specified by a pattern of the plurality of center areas.
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公开(公告)号：US20190052358A1
公开(公告)日：2019-02-14
申请号：US16152995
申请日：2018-10-05
Inventor： Mitsuaki OSHIMA , Koji NAKANISHI , Hideki AOYAMA , Ikuo FUCHIGAMI , Hidehiko SHIN , Tsutomu MUKAI , Yosuke MATSUSHITA , Shigehiro IIDA , Kazunori YAMADA
IPC: H04B10/11 , H04B10/116 , H04B10/114 , H04B10/54 , E05F15/43 , H04M1/725
CPC classification number: H04B10/11 , E05F15/43 , E05F2015/435 , H04B10/1149 , H04B10/116 , H04B10/541 , H04M1/7253
Abstract: A recoding medium storing a computer program, which, when executed by a processor, cause the processor to perform operations including: determining a pattern of a change in luminance, by modulating the signal to be transmitted; and transmitting the signal, by at least one light emitter changing in luminance according to the determined pattern of the change in luminance. The signal has a plurality of blocks, each block of the plurality of blocks includes (i) address information that indicates a position of a data segment in the signal and (ii) the data segment. In the transmitting, the signal is transmitted repeatedly at different times. The address information is used to identify a same location of the block data segment in the signal transmitted at a first time and in the signal transmitted at a second time, which is different from the first time. The signal has a check signal.
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