DIGITAL COMMUNICATION SYSTEM USING FREQUENCY SELECTIVE BASEBAND AND METHOD THEREOF
    35.
    发明申请
    DIGITAL COMMUNICATION SYSTEM USING FREQUENCY SELECTIVE BASEBAND AND METHOD THEREOF 有权
    使用频率选择基带的数字通信系统及其方法

    公开(公告)号:US20100074257A1

    公开(公告)日:2010-03-25

    申请号:US12517065

    申请日:2007-12-05

    Applicant: In-Gi LIM

    Inventor: In-Gi LIM

    CPC classification number: H04J13/0048 H04B1/7087 H04B13/005 H04J13/16

    Abstract: Provided are a digital communication system using frequency selective baseband and a method thereof. A transmitter of the digital communication system, includes: a preamble/header transmission processing unit for spreading a preamble for frame synchronization and a header including data information; a data transmission processing unit for spreading data by using spread codes having dominant frequency in a desired frequency band, i.e., frequency selective spread codes; and a multiplexer for multiplexing the spreaded preamble and the spreaded header from the preamble/header transmission processing unit and the frequency selective spreaded data from the data transmission processing unit and transmitting the multiplexed signal in digital.

    Abstract translation: 提供一种使用频率选择性基带的数字通信系统及其方法。 数字通信系统的发射机包括:用于扩展用于帧同步的前置码的前同步码/报头发送处理单元和包括数据信息的报头; 数据发送处理单元,用于通过使用在期望频带中具有主频的扩频码来扩频数据,即频率选择性扩频码; 以及多路复用器,用于从前导码/报头发送处理单元和来自数据发送处理单元的频率选择性分散数据复用经扩展的前导码和扩展报头,并以数字方式发送多路复用信号。

    Method and apparatus for communicating sound wave of human body
    38.
    发明授权
    Method and apparatus for communicating sound wave of human body 有权
    传达人体声波的方法和装置

    公开(公告)号:US08489027B2

    公开(公告)日:2013-07-16

    申请号:US12671496

    申请日:2008-05-30

    CPC classification number: H04B13/005

    Abstract: A method and apparatus for communicating a sound wave is provided. The apparatus includes: a sound wave converter converting a sound wave signal transmitted from a counter apparatus through the human body into an electrical signal when the sound wave is transmitted from the counter apparatus through the human body and converting an electrical signal on data to be output to the counter apparatus into a sound wave; a data processor receiving the converted electrical signal from the sound wave converter and transmitting an electrical signal on the data to be output to the sound wave converter when the data to be output exists; and a switch connected between the sound wave converter and the data processor, the switch transmitting the converted electrical signal to the data processor and transmitting the electrical signal on the data to be output to the sound wave converter. Accordingly, it is possible to efficiently transmit a signal with a low loss of sound wave signal. Thus, it is possible to simply construct communication hardware at a low price.

    Abstract translation: 提供了一种用于传送声波的方法和装置。 该装置包括:声波转换器,当通过人体从计数器装置发送声波并将电信号转换成要输出的数据时,将从计数器装置发送的声波信号通过人体转换为电信号 将对方设备变成声波; 数据处理器,当要输出的数据存在时,从声波转换器接收经转换的电信号,并将要输出的数据的电信号发送到声波转换器; 以及连接在声波转换器和数据处理器之间的开关,开关将转换的电信号发送到数据处理器,并将要输出的数据的电信号传输到声波转换器。 因此,可以有效地发送声波信号的低损失的信号。 因此,可以以较低的价格简单地构建通信硬件。

Patent Agency Ranking