| 摘要 |
PROBLEM TO BE SOLVED: To provide a transmission/reception method for digital radio waves for permitting a particular area unable to receive a digital radio wave due to the presence of an obstacle to early receive a terrestrial digital broadcast and capable of utilizing features of the digital broadcast. SOLUTION: The method selects a third point capable of directly transceiving in common a digital radio wave to a transmission station and the particular area unable to receive the digital radio wave from the transmission station due to the presence of an obstacle such as a mountain or a building, a curved projection of a curved reflecting plate installed at the third point confronts the directions of the particular area and the transmission station, the curved reflecting plate is installed upright through adjustment in such a way that most parts of a wide angle reflecting range depending on the curvature of the curved projection cover the particular area, the curved projection of the curved reflecting plate radially reflects the digital radio wave from the transmission station so as to transmit the radio wave over a wide range of the particular area. COPYRIGHT: (C)2004,JPO
|
