대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 2004년도 심포지엄 논문집 정보 및 제어부문
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- Pages.156-158
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- 2004
GPS 특허동향
Patent Survey on GPS
- 발행 : 2004.05.22
초록
The patent analysis of GPS technologies is performed by using a patent mapping method. The number of U.S.,Japanese and Korean patent applications are 1,819, 1,715 and 1,277 cases respectively. U.S and Japanese patents are mainly composed of hardware technologies. But, Korean patents are mainly composed of service technologies.