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    • 6. 发明申请
    • ILLUMINATING LIGHT COMMUNICATION DEVICE
    • 照明光通信设备
    • US20100111538A1
    • 2010-05-06
    • US12225794
    • 2007-03-30
    • Takemi AritaShinichiro HaruyamaMasao NakagawaTakehiko YamaguchiToshihiko komine
    • Takemi AritaShinichiro HaruyamaMasao NakagawaTakehiko YamaguchiToshihiko komine
    • H04B10/00
    • H04B10/116H04B3/54H04B10/1143H04B2203/5408
    • An illuminating light communication device, which is for establishing a communication system capable of controlling fluctuation in intensity of illuminating light when transmitting data using a power line and illuminating light, and satisfactorily carrying out communication using the power line and communication using the illuminating light, is provided. When data is transmitted through the power line, a signal component is extracted by a filter unit 12, and the demodulated by a power line modulator-demodulator 13, thereby retrieving the data. The retrieved data is temporarily stored in a protocol converter 14. Afterward, the data is converted to the optical communication protocol, and blinking or amount of light of a semiconductor light emitting element 16 is controlled according to the data transmitted from a light source control unit 15, thereby modulating the illuminating light. This allows transmission of data utilizing the illuminating light. Multiple-valued PPM, which defines that existing pulses correspond to OFF while no pulse corresponds to ON, may be used as a modulation system for optical communication.
    • 一种照明光通信装置,其用于建立能够利用电力线和照明光发送数据时能够控制照明光的波动的通信系统,并且使用该电力线进行通信和使用该照明光的通信,是令人满意的。 提供。 当通过电力线传输数据时,由滤波器单元12提取信号分量,并由电力线调制器 - 解调器13进行解调,从而检索数据。 将检索到的数据临时存储在协议转换器14中。之后,将数据转换为光通信协议,并根据从光源控制单元发送的数据来控制半导体发光元件16的闪烁或光量 15,从而调制照明光。 这允许利用照明光传输数据。 可以使用多值PPM,其定义了现有脉冲对应于OFF,而没有脉冲对应于ON,可用作光通信的调制系统。
    • 9. 发明申请
    • Data Transmission Apparatus and Data Reception Apparatus
    • 数据传输装置和数据接收装置
    • US20090214225A1
    • 2009-08-27
    • US11920773
    • 2006-05-17
    • Masao NakagawaShinichiro Haruyama
    • Masao NakagawaShinichiro Haruyama
    • H04B10/04
    • H04B10/116H04B10/1149H05B33/0818H05B33/0869Y02B20/346
    • A data communication system capable of controlling the brightness of light sensed by the human eye and quality communication using an illuminative light is provided. A PWM circuit 11 adjusts pulse width in conformity with a light intensity control signal corresponding to a desired light intensity, resulting in a PWM signal. The PWM signal is then transmitted to a phase inverter 12. The phase inverter 12 outputs the PWM signal as is when a data signal to be transmitted is 0, for example, while it inverts the phase of the PWM signal and then outputs the resulting inverted PWM signal when the data signal is 1. A light source driver circuit 13 drives, a light source 14 such as an LED, organic electroluminescence, or the like in conformity with the phase inverted signal to emit light. In a data reception unit 2, an optical sensor 21 converts light emitted from an illuminating device 1 to an electric signal. A phase detection circuit 22 detects the phase of the signal and then outputs a received data signal.
    • 提供一种能够控制由人眼感测的光的亮度和使用照明光的质量通信的数据通信系统。 PWM电路11根据与期望的光强对应的光强度控制信号来调整脉冲宽度,产生PWM信号。 然后,PWM信号被发送到相位逆变器12.当逆变器12反相PWM信号的相位时,相位逆变器12按照要发送的数据信号为0的状态输出PWM信号, 数据信号为1时的PWM信号。光源驱动电路13根据相位反转信号驱动诸如LED的光源14,有机电致发光等,以发光。 在数据接收单元2中,光学传感器21将从照明装置1发射的光转换为电信号。 相位检测电路22检测信号的相位,然后输出接收的数据信号。