• Title/Summary/Keyword: Modem.

Search Result 1,810, Processing Time 0.027 seconds

Dimming Control system Using Power Line Modem (전력선 통신을 이용한 조광제어 시스템)

  • 주병훈
    • Proceedings of the KIPE Conference
    • /
    • 2000.07a
    • /
    • pp.107-110
    • /
    • 2000
  • 전력선 통신을 이용한 조광제어 시스템은 전자식 안정기의 주파수 변조 방식을 잉요하여 실시하였다 전력선 통신제어 사용된 data 변조 방식은 FSK 방식을 이용하였으며 안정기의 스위칭 동작에 의해 발생하는 EMI는 140kHz 대역의 노이즈를 발생시키므로 본논문에서는 2단 필터를 사용하여 해당 대역의 EMI 60dB 감쇄시켰다.

  • PDF

수학과 건축

  • 김성숙;김주영
    • Journal for History of Mathematics
    • /
    • v.15 no.1
    • /
    • pp.99-108
    • /
    • 2002
  • Historically, architecture was part of mathematics and architects were mathematicians. In this paper, we attempted to analyze the architecture from the mathematical point of view and conclude that pursuit of beauty and balance lead to the mathematically rigorous shape. For example, the golden ratio in the Great Pyramid and Parthenon prevail in the modem arts and architecture. We also conclude that mathematics is not invention but discovery at least in the area of architecture.

  • PDF

Romanticism of Fashion

  • Lee, Kyung-Ah;Chun, Hei-Jung
    • Proceedings of the Korea Society of Costume Conference
    • /
    • 2003.10a
    • /
    • pp.50-50
    • /
    • 2003
  • Romanticism is advocating the conception called the respect of diversity and individuality in the modem society dominated by post-modernism trying to accept the various values. This is a very important spirit that is being solidified by the explosive consumption of materialism and the tendency of narcissism.

  • PDF

Review of Cave Surveying Techniques

  • Worthington, Steve
    • Journal of the speleological society of Korea
    • /
    • no.5
    • /
    • pp.79-95
    • /
    • 1997
  • The main purpose of this article is to compare different mapping techniques, so that an appropriate one may be chosen for a particular cave. Ultra-accurate techniques such as using tripods are not discussed here, as their application is limited to a small minority of caves. Most modem mapping is carried out under time restraints, due to the shortness of an expedition or the difficulty of a cave; thus, rapid mapping techniques are emphasized here.(omitted)

  • PDF

Mobile DRM Technology

  • 신용태
    • Proceedings of the CALSEC Conference
    • /
    • 2003.09a
    • /
    • pp.8-14
    • /
    • 2003
  • 디지털콘텐츠 세상 디지털콘텐츠에 대한 기대 ㆍ멀티미디어 압축 기술 동의 발전 ㆍ인터넷을 통한 멀티미디어 전송 기술 발달 ㆍ광대역 네트워크 및 xDSL, Cable modem과 같은 네트워크 기술 발달 ㆍ이용자의 멀티미디어 기대치 증가 ㆍ디지털 정보의 장점(무한사용, 가공재생, 저장, 비손실성, 접근용이성,...)(중략)

  • PDF