公开(公告)号：KR100835175B1

公开(公告)日：2008-06-05

申请号：KR1020060124028

申请日：2006-12-07

Applicant: 한국전자통신연구원

Inventor： 임인기 ,  박기혁 ,  강성원 ,  김경수 ,  김정범 ,  형창희 ,  박형일 ,  박덕근 ,  황정환 ,  김성은 ,  김진경 ,  성진봉 ,  김혁

IPC: H04B7/00 ,  H04L12/28

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

Abstract: A digital communication system using a frequency selective baseband and a method thereof are provided to reduce the complexity of analog transmitting/receiving terminals using the serial/parallel conversion of data and a frequency selective diffusion code, thereby improving the power consumption of the entire system. A transmitter(221) in a digital communication system comprises a preamble/header transmitting unit(2210,2211,2212,2213), a data transmitting unit(2214,2215,2216,2217), and a multiplexing unit(2218). The preamble/header transmitting unit diffuses header information comprised of a preamble for frame synchronization and data property information. The data transmitting unit diffuses data to be transmitted to the outside using a frequency selective diffusion code. The multiplexing unit performs the multiplexing of the preamble and header diffused by the preamble/header transmitting unit, and data diffused selectively according to a frequency in the data transmitting unit and transmits the diffused preamble, header and data which are converted into digital signals.

Abstract translation: 提供了使用频率选择性基带的数字通信系统及其方法，以通过数据的串行/并行转换和频率选择性扩散码降低模拟发送/接收终端的复杂度，从而提高整个系统的功耗。 数字通信系统中的发射机（221）包括前同步码/报头发送单元（2210,2211,2212,2213），数据发送单元（2214,2215,2216,2217）和复用单元（2218）。 前导/报头发送单元扩散由帧同步的前导码和数据属性信息组成的报头信息。 数据发送单元使用频率选择性扩散码将要发送的数据扩散到外部。 多路复用单元执行由前导码/报头发送单元扩散的前同步码和报头的复用，以及根据数据发送单元中的频率选择性地扩散的数据，并发送被转换为数字信号的扩散前导码，报头和数据。

公开(公告)号：KR100790368B1

公开(公告)日：2008-01-03

申请号：KR1020060123350

申请日：2006-12-06

Applicant: 한국전자통신연구원

Inventor： 성진봉 ,  강성원 ,  황정환 ,  형창희 ,  김진경 ,  박덕근 ,  김성은 ,  박형일 ,  임인기 ,  김정범 ,  김경수

IPC: H04B13/00 ,  H04B1/16

CPC classification number: H04B13/005 ,  H04H40/18 ,  H04H2201/11

Abstract: A portable DMB(Digital Multimedia Broadcasting) apparatus for human body communication, a method thereof, an HMD(Head Mounted Display) apparatus for DMB reception using human body communication, and a method thereof are provided to enable a user, who carries a portable terrestrial DMB receiver, to conveniently watch a terrestrial DMB program by using his body as a transport channel, without an additional cable or antenna. A portable DMB apparatus for human body communication comprises a DMB receiver(101) and a transmitting electrode(206). The DMB receiver(101) receives and processes DMB signals and converts them into audio/video signals. Also the DMB receiver(101) conveys IF-band broadcast signals or transport streams, which are created in the process of receiving and processing the DMB signals, to the transmitting electrode(206). The transmitting electrode(206) supplies the IF-band broadcast signals or the transport streams to a user's body as DMB signals for human body communication. In addition, the portable DMB apparatus comprises an output part(205). The output part(205) outputs the audio/video signals.

Abstract translation: 一种用于人体通信的便携式DMB（数字多媒体广播）装置，其方法，用于使用人体通信的DMB接收的HMD（头戴式显示器）装置及其方法，用于使携带便携式陆地通信的用户 DMB接收机，通过使用他的身体作为传输通道，无需额外的电缆或天线便于观看地面DMB节目。 用于人体通信的便携式DMB装置包括DMB接收器（101）和发送电极（206）。 DMB接收机（101）接收并处理DMB信号并将其转换成音频/视频信号。 此外，DMB接收机（101）将在接收和处理DMB信号的处理中创建的IF频带广播信号或传输流传送到发射电极（206）。 发射电极（206）将IF频带广播信号或传输流提供给用户的身体作为用于人体通信的DMB信号。 此外，便携式DMB装置包括输出部分（205）。 输出部分（205）输出音频/视频信号。