Information communication method
    8.
    发明授权
    Information communication method 有权
    信息通信方式

    公开(公告)号:US09515731B2

    公开(公告)日:2016-12-06

    申请号:US15002812

    申请日:2016-01-21

    摘要: An information communication method of transmitting a signal is provided that uses a change in luminance. The method includes determining a pattern of the change in luminance by modulating the signal to be transmitted, and transmitting the signal by a light emitter changing in luminance according to the determined pattern. The pattern of the change in luminance is a pattern in which one of two different luminance values occurs in each arbitrary position in a predetermined duration. The determining a pattern of change in luminance includes dividing the predetermined duration into four duration units, so that one of two different luminance value occurs in one duration unit of the four duration units and the other luminance value of the two different luminance value occurs in three duration units of the four duration units, the three duration units are other than the one duration unit.

    摘要翻译: 提供使用亮度变化的发送信号的信息通信方法。 该方法包括通过调制要发送的信号来确定亮度变化的模式,以及根据确定的模式通过以亮度变化的发光器发送信号。 亮度变化的图案是在预定持续时间内的每个任意位置出现两种不同亮度值中的一种的图案。 确定亮度变化的模式包括将预定持续时间划分为四个持续时间单位,使得两个不同亮度值中的一个发生在四个持续时间单位的一个持续时间单位中,并且两个不同亮度值的另一个亮度值出现在三个 四个持续时间单位的持续时间单位,三个持续时间单位不同于一个持续时间单位。

    Information communication method for obtaining information using bright line image
    9.
    发明授权
    Information communication method for obtaining information using bright line image 有权
    使用亮线图像获取信息的信息通信方法

    公开(公告)号:US09380227B2

    公开(公告)日:2016-06-28

    申请号:US14959264

    申请日:2015-12-04

    摘要: 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.

    摘要翻译: 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。

    IMAGING DEVICE, INTEGRATED CIRCUIT, AND FLICKER REDUCTION METHOD
    10.
    发明申请
    IMAGING DEVICE, INTEGRATED CIRCUIT, AND FLICKER REDUCTION METHOD 有权
    成像装置,集成电路和减少闪烁方法

    公开(公告)号:US20150229824A1

    公开(公告)日:2015-08-13

    申请号:US14422280

    申请日:2014-03-20

    IPC分类号: H04N5/235 H04N5/217

    CPC分类号: H04N5/2357 H04N5/217

    摘要: This image capture device (100) includes: an image sensor (102); an integrated value calculating section (210) which calculates, on a frame-by-frame basis, a value of a line integral of luminance values with respect to each of a plurality of horizontal lines included in a frame; a memory (220); an average calculating section (230) which calculates a line average value by working out the average of the values of the line integral on the same horizontal line between the newest frame and a number of other frames gotten earlier than the newest one in the memory (220); a waveform data generating section (240) which generates waveform data by normalizing the value of the line integral in the memory (220) based on the value of the line integral and a line average value; and a flicker extracting section (250) which extracts information about the phase and frequency of the flicker based on the waveform data.

    摘要翻译: 该图像捕获装置(100)包括:图像传感器(102); 积分值计算部(210),其逐帧地计算相对于包括在帧中的多条水平线中的每一条的亮度值的积分的值; 存储器(220); 平均计算部(230),其通过计算在最新帧与在存储器中比最新帧之前获得的其它帧的数量相同的水平线上的积分线的值的平均值来计算行平均值 220); 波形数据生成部(240),其基于线积分的值和线平均值,对存储器(220)中的积分线的值进行归一化,生成波形数据; 以及基于波形数据提取关于闪烁的相位和频率的信息的闪烁提取部分(250)。