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2. 发明公开

KR1020070060498A 보안 여부나 전송 거리에 따른 주파수를 사용하는 통신 장치 有权
标题翻译：使用频率根据安全和传输距离的通信系统
公开(公告)号：KR1020070060498A
公开(公告)日：2007-06-13
申请号：KR1020050120004
申请日：2005-12-08
申请人： 한국전자통신연구원
发明人： 성진봉 , 강성원 , 황정환 , 박덕근 , 형창의 , 김진경
IPC分类号： H04B13/02
CPC分类号： H04B13/005
摘要： A communication system using a frequency based on the necessity of security or a transmission distance is provided to offer an efficient communication environment suitable for communication distances and characteristics in consideration of frequency characteristics of a transmission medium by selectively using frequency bands lower or higher than a predetermined frequency, as a transmission frequency depending on whether information security is essential. A communication system using a frequency based on the necessity of security or a transmission distance comprises a transmitting part(100), a transmission medium(110), and a receiving part(120). The transmitting part(100) transmits signals by using a frequency band higher than a preset frequency as a transmission frequency in short range communication which requires information security and a frequency band smaller than the preset frequency as the transmission frequency in short or long range communication which doesn't not require information security. The signals transmitted through the transmitting part(100) are transferred to the transmission medium(110). The receiving part(120) receives the signals transmitted through the transmission medium(110).
摘要翻译：提供使用基于安全性或传输距离的频率的通信系统，以通过选择性地使用低于或高于预定的频带的频带来提供考虑到传输介质的频率特性的适于通信距离和特性的有效的通信环境频率，作为传输频率取决于信息安全是否必不可少。基于安全性或传输距离的必要性使用频率的通信系统包括发送部分（100），传输介质（110）和接收部分（120）。发送部（100）通过使用高于预设频率的频带作为短距离通信中的发送频率来发送信号，其需要信息安全性和小于预设频率的频带作为短距离或长距离通信中的发送频率，不需要信息安全。通过发送部（100）发送的信号被传送到传输介质（110）。接收部分（120）接收通过传输介质（110）传输的信号。

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